Arnd Bergmann [Thu, 28 Apr 2016 15:52:18 +0000 (17:52 +0200)]
Merge tag 'renesas-dt-pm-domain-for-v4.7' of git://git./linux/kernel/git/horms/renesas into next/late
Merge "Renesas ARM Based SoC DT PM Domain Updates for v4.7" into next/late
* Add SYSC PM Domains to DT for R-Car Gen 1 and 2 SoCs
This pull requests is based on a merge of:
* "[GIT PULL] Second Round of Renesas ARM Based SoC R-Car SYSC Updates for
v4.7", tagged as renesas-rcar-sysc2-for-v4.7, which you have already
pulled.
* "[GIT PULL v2] Renesas ARM Based SoC DT Updates for v4.7",
tagged as renesas-dt-for-v4.7, which you have also already pulled.
The reason for the somewhat tedious base on
renesas-rcar-sysc2-for-v4.7, which provides driver changes,
is a hard run-time dependency.
I also have a similar set of changes for arm64 which I will send separately.
* tag 'renesas-dt-pm-domain-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (88 commits)
ARM: dts: r8a7794: Use SYSC "always-on" PM Domain
ARM: dts: r8a7793: Use SYSC "always-on" PM Domain
ARM: dts: r8a7791: Use SYSC "always-on" PM Domain
ARM: dts: r8a7790: Use SYSC "always-on" PM Domain
ARM: dts: r8a7779: Use SYSC "always-on" PM Domain
ARM: dts: r8a7794: Add SYSC PM Domains
ARM: dts: r8a7793: Add SYSC PM Domains
ARM: dts: r8a7791: Add SYSC PM Domains
ARM: dts: r8a7790: Add SYSC PM Domains
ARM: dts: r8a7779: Add SYSC PM Domains
soc: renesas: rcar-sysc: Add support for R-Car H3 power areas
soc: renesas: rcar-sysc: Add support for R-Car E2 power areas
soc: renesas: rcar-sysc: Add support for R-Car M2-N power areas
soc: renesas: rcar-sysc: Add support for R-Car M2-W power areas
soc: renesas: rcar-sysc: Add support for R-Car H2 power areas
soc: renesas: rcar-sysc: Add support for R-Car H1 power areas
soc: renesas: rcar-sysc: Enable Clock Domain for I/O devices
ARM: dts: gose: Enable SDHI controllers
ARM: dts: r8a7793: Add SDHI controllers
ARM: dts: r8a7790: fix max-frequency for SDHI
...
Geert Uytterhoeven [Tue, 20 Jan 2015 13:44:58 +0000 (14:44 +0100)]
ARM: dts: r8a7794: Use SYSC "always-on" PM Domain
Hook up all devices that are part of the CPG/MSTP Clock Domain to the
SYSC "always-on" PM Domain, for a more consistent device-power-area
description in DT.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 3 Jun 2015 08:43:13 +0000 (10:43 +0200)]
ARM: dts: r8a7793: Use SYSC "always-on" PM Domain
Hook up all devices that are part of the CPG/MSTP Clock Domain to the
SYSC "always-on" PM Domain, for a more consistent device-power-area
description in DT.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Tue, 20 Jan 2015 13:44:58 +0000 (14:44 +0100)]
ARM: dts: r8a7791: Use SYSC "always-on" PM Domain
Hook up all devices that are part of the CPG/MSTP Clock Domain to the
SYSC "always-on" PM Domain, for a more consistent device-power-area
description in DT.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Tue, 20 Jan 2015 13:44:58 +0000 (14:44 +0100)]
ARM: dts: r8a7790: Use SYSC "always-on" PM Domain
Hook up all devices that are part of the CPG/MSTP Clock Domain to the
SYSC "always-on" PM Domain, for a more consistent device-power-area
description in DT.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 3 Jun 2015 08:14:01 +0000 (10:14 +0200)]
ARM: dts: r8a7779: Use SYSC "always-on" PM Domain
Hook up all devices that are part of the CPG/MSTP Clock Domain to the
SYSC "always-on" PM Domain, for a more consistent device-power-area
description in DT.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Tue, 20 Jan 2015 13:44:58 +0000 (14:44 +0100)]
ARM: dts: r8a7794: Add SYSC PM Domains
Add a device node for the System Controller.
Hook up the Cortex-A7 CPU cores and the Cortex-A7 L2 cache/SCU to their
respective PM Domains.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 3 Jun 2015 08:43:13 +0000 (10:43 +0200)]
ARM: dts: r8a7793: Add SYSC PM Domains
Add a device node for the System Controller.
Hook up the first Cortex-A15 CPU core and the Cortex-A15 L2 cache/SCU to
their respective PM Domains.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Tue, 20 Jan 2015 13:44:58 +0000 (14:44 +0100)]
ARM: dts: r8a7791: Add SYSC PM Domains
Add a device node for the System Controller.
Hook up the Cortex-A15 CPU cores and the Cortex-A15 L2 cache/SCU to
their respective PM Domains.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Tue, 20 Jan 2015 13:44:58 +0000 (14:44 +0100)]
ARM: dts: r8a7790: Add SYSC PM Domains
Add a device node for the System Controller.
Hook up the Cortex-A15 and Cortex-A7 CPU cores and L2 caches/SCUs to
their respective PM Domains.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 3 Jun 2015 08:14:01 +0000 (10:14 +0200)]
ARM: dts: r8a7779: Add SYSC PM Domains
Add a device node for the System Controller.
Hook up ARM CPU cores 1-3 to their respective PM Domains.
Note that ARM CPU core 0 cannot be shut off.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Simon Horman [Wed, 27 Apr 2016 01:35:26 +0000 (11:35 +1000)]
Merge tag 'renesas-rcar-sysc2-for-v4.7' into dt-pm-domain-for-v4.7
Second Round of Renesas ARM Based SoC R-Car SYSC Updates for v4.7
Introduce a DT-based driver for the R-Car System Controller, as found on
Renesas R-Car H1, R-Car Gen2, and R-Car Gen3 SoCs.
Geert Uytterhoeven [Wed, 20 Apr 2016 12:02:46 +0000 (14:02 +0200)]
soc: renesas: rcar-sysc: Add support for R-Car H3 power areas
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 20 Apr 2016 12:02:45 +0000 (14:02 +0200)]
soc: renesas: rcar-sysc: Add support for R-Car E2 power areas
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 20 Apr 2016 12:02:44 +0000 (14:02 +0200)]
soc: renesas: rcar-sysc: Add support for R-Car M2-N power areas
R-Car M2-N is identical to R-Car M2-W w.r.t. power domains, so reuse the
definitions from the latter.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 20 Apr 2016 12:02:43 +0000 (14:02 +0200)]
soc: renesas: rcar-sysc: Add support for R-Car M2-W power areas
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 20 Apr 2016 12:02:42 +0000 (14:02 +0200)]
soc: renesas: rcar-sysc: Add support for R-Car H2 power areas
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 20 Apr 2016 12:02:41 +0000 (14:02 +0200)]
soc: renesas: rcar-sysc: Add support for R-Car H1 power areas
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 20 Apr 2016 12:02:40 +0000 (14:02 +0200)]
soc: renesas: rcar-sysc: Enable Clock Domain for I/O devices
On R-Car H3, some power areas (e.g. A3VP) contain I/O devices, which are
also part of the CPG/MSSR Clock Domain.
On all R-Car SoCs, devices in the "always-on" PM Domain are part of the
Clock Domain served by the CPG/MSSR or CPG/MSTP driver.
Hook up the CPG/MSTP or CPG/MSSR Clock Domain attach/detach callbacks to
enable power management using module clocks. Which callback to hook up
depends on the presence of device nodes compatible with
"renesas,cpg-mstp-clocks". This clears the path for a future migration
from the CPG/MSTP to the CPG/MSSR driver on R-Car H1 and
Gen2.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Ulrich Hecht [Mon, 18 Apr 2016 16:02:57 +0000 (18:02 +0200)]
ARM: dts: gose: Enable SDHI controllers
Includes regulator and pin assignments.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Ulrich Hecht [Mon, 18 Apr 2016 16:02:56 +0000 (18:02 +0200)]
ARM: dts: r8a7793: Add SDHI controllers
Same as on r8a7791.
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Wolfram Sang [Mon, 18 Apr 2016 09:41:30 +0000 (11:41 +0200)]
ARM: dts: r8a7790: fix max-frequency for SDHI
The wrong values come from an old datasheet (H2 v0.6). Anything later
has the fixed value of 195MHz (H2 v0.7 up to Gen2-common V2.0).
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Thu, 14 Apr 2016 09:58:42 +0000 (11:58 +0200)]
ARM: dts: kzm9g: Configure NMI key as wake-up source
Add a GPIO key with wake-up capability for the NMI button.
This allows to wake up the system from s2ram without relying on the
buttons on the optional switch board.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Wolfram Sang [Fri, 1 Apr 2016 15:44:39 +0000 (17:44 +0200)]
ARM: dts: r8a7790: lager: Enable UHS-I SDR-50
Add the "1v8" pinctrl state and sd-uhs-sdr50 property to SDHI{0,2}.
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 20 Apr 2016 12:02:39 +0000 (14:02 +0200)]
soc: renesas: rcar-sysc: Make rcar_sysc_power_is_off() static
As of commit
b12ff41658171f53 ("ARM: shmobile: r8a7779: Remove legacy PM
Domain remainings"), rcar_sysc_power_is_off() is no longer used from
SoC-specific code.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 20 Apr 2016 12:02:38 +0000 (14:02 +0200)]
soc: renesas: rcar-sysc: Add DT support for SYSC PM domains
Populate the SYSC PM domains from DT, based on the presence of a device
node for the System Controller. The actual power area hiearchy, and
features of specific areas are obtained from tables in the C code.
The SYSCIER and SYSCIMR register values are derived from the power areas
present, which will help to get rid of the hardcoded values in R-Car H1
and R-Car Gen2 platform code later.
Initialization is done from an early_initcall(), to make sure the PM
Domains are initialized before secondary CPU bringup.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 20 Apr 2016 12:02:37 +0000 (14:02 +0200)]
soc: renesas: rcar-sysc: Improve rcar_sysc_power() debug info
Print requested power domain state.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 20 Apr 2016 12:02:36 +0000 (14:02 +0200)]
soc: renesas: Move pm-rcar to drivers/soc/renesas/rcar-sysc
Move the pm-rcar driver from arch/arm/mach-shmobile/ to
drivers/soc/renesas/, and its header file to include/linux/soc/renesas/,
so it can be shared between arm32 (R-Car H1 and Gen2) and arm64 (R-Car
Gen3). Rename it to rcar-sysc as it's really a driver for the R-Car
System Controller (SYSC).
Kill the intermediate PM_RCAR config symbol, as it's not user
configurable anymore, and to prepare for SoC-specific make rules.
Add the missing #include <linux/types.h> to rcar-sysc.h, which was
exposed by different include order.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Simon Horman [Fri, 22 Apr 2016 07:22:21 +0000 (17:22 +1000)]
Merge tag 'clk-renesas-for-v4.7-tag2' of git://git./linux/kernel/git/geert/renesas-drivers into rcar-sysc-for-v4.7
clk: renesas: R-Car SYSC PM Domain Preparation
- Export the CPG/MSSR and CPG/MSTP attach/detach_dev callbacks, so
they can be called by the R-Car SYSC PM Domain driver.
Ben Hutchings [Fri, 1 Apr 2016 15:44:38 +0000 (17:44 +0200)]
ARM: dts: r8a7790: Set maximum frequencies for SDHI clocks
Taken from the datasheet.
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Fri, 4 Mar 2016 16:03:46 +0000 (17:03 +0100)]
clk: renesas: cpg-mssr: Export cpg_mssr_{at,de}tach_dev()
The R-Car SYSC PM Domain driver has to power manage devices in power
areas using clocks. To reuse code and to share knowledge of clocks
suitable for power management, this is ideally done through the existing
cpg_mssr_attach_dev() and cpg_mssr_detach_dev() callbacks.
Hence these callbacks can no longer rely on their "domain" parameter
pointing to the CPG/MSSR Clock Domain. To handle this, keep a pointer to
the clock domain in a static variable. cpg_mssr_attach_dev() has to
support probe deferral, as the R-Car SYSC PM Domain may be initialized,
and devices may be added to it, before the CPG/MSSR Clock Domain is
initialized.
Dummy callbacks are provided for the case where CPG/MSTP support is not
included, so the rcar-sysc driver won't have to care about this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Geert Uytterhoeven [Wed, 13 Apr 2016 09:18:06 +0000 (11:18 +0200)]
clk: renesas: mstp: Provide dummy attach/detach_dev callbacks
Provide dummy cpg_mstp_{at,de}tach_dev() PM Domain callbacks if CPG/MSTP
support is not included, so the rcar-sysc driver won't have to care
about this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Geert Uytterhoeven [Wed, 13 Apr 2016 09:08:42 +0000 (11:08 +0200)]
clk: renesas: Provide Kconfig symbols for CPG/MSSR and CPG/MSTP support
Currently the decision whether to build the renesas-cpg-mssr and
clk-mstp drivers is handled by Makefile logic. However, the rcar-sysc
driver will need to know whether CPG/MSSR and/or CPG/MSTP support are
available or not.
To avoid having to duplicate this logic, move it to Kconfig. Provide
non-visible CLK_RENESAS_CPG_MSSR and CLK_RENESAS_CPG_MSTP Kconfig
symbols, which can be used by both Makefiles and C code.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Simon Horman [Thu, 24 Mar 2016 02:01:08 +0000 (11:01 +0900)]
ARM: dts: r8a7791: Use USB3.0 fallback compatibility string
Use recently added fallback compatibility string in r8a7791 device tree.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Simon Horman [Thu, 24 Mar 2016 02:01:07 +0000 (11:01 +0900)]
ARM: dts: r8a7790: Use USB3.0 fallback compatibility string
Use recently added fallback compatibility string in r8a7790 device tree.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Geert Uytterhoeven [Fri, 18 Mar 2016 10:19:21 +0000 (11:19 +0100)]
ARM: dts: r8a7779: Correct interrupt type for ARM TWD
The ARM TWD interrupt is a private peripheral interrupt (PPI), and per
the ARM GIC documentation, whether the type for PPIs can be set is
IMPLEMENTATION DEFINED.
For R-Car H1 devices the PPI type cannot be set, and so when we attempt
to set the type for the ARM TWD interrupt it fails. This has gone
unnoticed because it fails silently, and because we cannot re-configure
the type it has had no impact. Nevertheless fix the type for the TWD
interrupt so that it matches the hardware configuration.
Based on patches by Jon Hunter for Tegra20/30 and OMAP4.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Fri, 18 Mar 2016 10:19:20 +0000 (11:19 +0100)]
ARM: dts: sh73a0: Correct interrupt type for ARM TWD
The ARM TWD interrupt is a private peripheral interrupt (PPI), and per
the ARM GIC documentation, whether the type for PPIs can be set is
IMPLEMENTATION DEFINED.
For SH-Mobile AG5 devices the PPI type cannot be set, and so when we
attempt to set the type for the ARM TWD interrupt it fails. This has
gone unnoticed because it fails silently, and because we cannot
re-configure the type it has had no impact. Nevertheless fix the type
for the TWD interrupt so that it matches the hardware configuration.
Based on patches by Jon Hunter for Tegra20/30 and OMAP4.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Simon Horman [Thu, 17 Mar 2016 07:35:17 +0000 (16:35 +0900)]
ARM: dts: r8a7794: Add IIC nodes
Add IIC nodes to r8a7794 device tree.
Based on similar work for the r8a7793 by Laurent Pinchart.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Simon Horman [Thu, 17 Mar 2016 07:33:10 +0000 (16:33 +0900)]
ARM: dts: r8a7794: add IIC clocks
Add IIC clocks to r8a7794 device tree.
Based on similar work for the r8a7790 by Wolfram Sang.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Simon Horman [Wed, 16 Mar 2016 01:52:56 +0000 (10:52 +0900)]
ARM: dts: r8a7793: add CAN nodes to device tree
Add CAN nodes to r8a7793 device tree.
Based on work by Sergei Shtylyov for the r8a7791 SoC.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Simon Horman [Wed, 16 Mar 2016 01:52:55 +0000 (10:52 +0900)]
ARM: dts: r8a7793: add CAN clocks to device tree
The R-Car CAN controllers can derive the CAN bus clock not only from their
peripheral clock input (clkp1) but also from the other internal clock
(clkp2) and external clock fed on CAN_CLK pin. Describe those clocks in
the device tree along with the USB_EXTAL clock from which clkp2 is
derived.
Based on work by Sergei Shtylyov for the r8a7791 SoC.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Simon Horman [Tue, 15 Mar 2016 00:26:34 +0000 (09:26 +0900)]
ARM: dts: r8a7794: add CAN nodes to device tree
Add CAN nodes to r8a7794 device tree.
Based on work by Sergei Shtylyov for the r8a7791 SoC.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
Simon Horman [Tue, 15 Mar 2016 00:26:33 +0000 (09:26 +0900)]
ARM: dts: r8a7794: add CAN clocks to device tree
Add CAN nodes to r8a7794 device tree.
Based on work by Sergei Shtylyov for the r8a7791 SoC.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
Simon Horman [Mon, 14 Mar 2016 02:13:59 +0000 (11:13 +0900)]
ARM: dts: r8a7790: use fallback can compatibility string
Use recently added fallback compatibility string in r8a7790 device tree.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Simon Horman [Mon, 14 Mar 2016 02:13:58 +0000 (11:13 +0900)]
ARM: dts: r8a7791: use fallback can compatibility string
Use recently added fallback compatibility string in r8a7791 device tree.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Geert Uytterhoeven [Thu, 3 Mar 2016 09:32:41 +0000 (10:32 +0100)]
ARM: dts: r8a7790: Add SCIF2 device node
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Thu, 3 Mar 2016 09:32:40 +0000 (10:32 +0100)]
ARM: dts: r8a7790: Add SCIF2 clock
Based on Rev. 2.00 of the R-Car Gen2 datasheet.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Simon Horman [Wed, 24 Feb 2016 02:29:06 +0000 (11:29 +0900)]
ARM: dts: r8a7791: use fallback jpu compatibility string
Use recently added fallback compatibility string in r8a7791 device tree.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Simon Horman [Wed, 24 Feb 2016 02:29:05 +0000 (11:29 +0900)]
ARM: dts: r8a7790: use fallback jpu compatibility string
Use recently added fallback compatibility string in r8a7790 device trees.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Geert Uytterhoeven [Wed, 13 Apr 2016 14:44:23 +0000 (16:44 +0200)]
soc: renesas: Add r8a7795 SYSC PM Domain Binding Definitions
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 13 Apr 2016 14:44:22 +0000 (16:44 +0200)]
soc: renesas: Add r8a7794 SYSC PM Domain Binding Definitions
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 13 Apr 2016 14:44:21 +0000 (16:44 +0200)]
soc: renesas: Add r8a7793 SYSC PM Domain Binding Definitions
R-Car M2-N is identical to R-Car M2-W w.r.t. power domains, so reuse the
definitions from the latter.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 13 Apr 2016 14:44:20 +0000 (16:44 +0200)]
soc: renesas: Add r8a7791 SYSC PM Domain Binding Definitions
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 13 Apr 2016 14:44:19 +0000 (16:44 +0200)]
soc: renesas: Add r8a7790 SYSC PM Domain Binding Definitions
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 13 Apr 2016 14:44:18 +0000 (16:44 +0200)]
soc: renesas: Add r8a7779 SYSC PM Domain Binding Definitions
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Geert Uytterhoeven [Wed, 13 Apr 2016 14:44:17 +0000 (16:44 +0200)]
PM / Domains: Add DT bindings for the R-Car System Controller
The Renesas R-Car System Controller provides power management for the
CPU cores and various coprocessors, following the generic PM domain
bindings in Documentation/devicetree/bindings/power/power_domain.txt.
This supports R-Car Gen1 (H1), Gen2, and Gen3.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Linus Torvalds [Mon, 11 Apr 2016 00:58:30 +0000 (17:58 -0700)]
Linux 4.6-rc3
Linus Torvalds [Mon, 11 Apr 2016 00:48:17 +0000 (17:48 -0700)]
Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
"A couple of small fixes, and wiring up the new syscalls which appeared
during the merge window"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: 8550/1: protect idiv patching against undefined gcc behavior
ARM: wire up preadv2 and pwritev2 syscalls
ARM: SMP enable of cache maintanence broadcast
Linus Torvalds [Mon, 11 Apr 2016 00:38:55 +0000 (17:38 -0700)]
Merge tag 'mmc-v4.6-rc1' of git://git.linaro.org/people/ulf.hansson/mmc
Pull MMC fixes from Ulf Hansson:
"Here are a couple of mmc fixes intended for v4.6 rc3:
MMC host:
- sdhci: Fix regression setting power on Trats2 board
- sdhci-pci: Add support and PCI IDs for more Broxton host controllers"
* tag 'mmc-v4.6-rc1' of git://git.linaro.org/people/ulf.hansson/mmc:
mmc: sdhci-pci: Add support and PCI IDs for more Broxton host controllers
mmc: sdhci: Fix regression setting power on Trats2 board
Linus Torvalds [Mon, 11 Apr 2016 00:04:42 +0000 (17:04 -0700)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Some bugfixes from I2C:
- fix a uevent triggered boot problem by removing a useless debug
print
- fix sysfs-attributes of the new i2c-demux-pinctrl driver to follow
standard kernel behaviour
- fix a potential division-by-zero error (needed two takes)"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: jz4780: really prevent potential division by zero
Revert "i2c: jz4780: prevent potential division by zero"
i2c: jz4780: prevent potential division by zero
i2c: mux: demux-pinctrl: Update docs to new sysfs-attributes
i2c: mux: demux-pinctrl: Clean up sysfs attributes
i2c: prevent endless uevent loop with CONFIG_I2C_DEBUG_CORE
Linus Torvalds [Sun, 10 Apr 2016 23:52:24 +0000 (16:52 -0700)]
Revert "ext4: allow readdir()'s of large empty directories to be interrupted"
This reverts commit
1028b55bafb7611dda1d8fed2aeca16a436b7dff.
It's broken: it makes ext4 return an error at an invalid point, causing
the readdir wrappers to write the the position of the last successful
directory entry into the position field, which means that the next
readdir will now return that last successful entry _again_.
You can only return fatal errors (that terminate the readdir directory
walk) from within the filesystem readdir functions, the "normal" errors
(that happen when the readdir buffer fills up, for example) happen in
the iterorator where we know the position of the actual failing entry.
I do have a very different patch that does the "signal_pending()"
handling inside the iterator function where it is allowable, but while
that one passes all the sanity checks, I screwed up something like four
times while emailing it out, so I'm not going to commit it today.
So my track record is not good enough, and the stars will have to align
better before that one gets committed. And it would be good to get some
review too, of course, since celestial alignments are always an iffy
debugging model.
IOW, let's just revert the commit that caused the problem for now.
Reported-by: Greg Thelen <gthelen@google.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 9 Apr 2016 21:10:20 +0000 (14:10 -0700)]
Merge branch 'parisc-4.6-3' of git://git./linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
"Since commit
0de798584bde ("parisc: Use generic extable search and
sort routines") module loading is boken on parisc, because the parisc
module loader wasn't prepared for the new R_PARISC_PCREL32 relocations.
In addition, due to that breakage, Mikulas Patocka noticed that
handling exceptions from modules probably never worked on parisc. It
was just masked by the fact that exceptions from modules don't happen
during normal use.
This patch series fixes those issues and survives the tests of the
lib/test_user_copy kernel module test. Some patches are tagged for
stable"
* 'parisc-4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Update comment regarding relative extable support
parisc: Unbreak handling exceptions from kernel modules
parisc: Fix kernel crash with reversed copy_from_user()
parisc: Avoid function pointers for kernel exception routines
parisc: Handle R_PARISC_PCREL32 relocations in kernel modules
Linus Torvalds [Sat, 9 Apr 2016 21:05:45 +0000 (14:05 -0700)]
Merge branch 'libnvdimm-fixes' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"Three fixes, the first two are tagged for -stable:
- The ndctl utility/library gained expanded unit tests illuminating a
long standing bug in the libnvdimm SMART data retrieval
implementation.
It has been broken since its initial implementation, now fixed.
- Another one line fix for the detection of stale info blocks.
Without this change userspace can get into a situation where it is
unable to reconfigure a namespace.
- Fix the badblock initialization path in the presence of the new (in
v4.6-rc1) section alignment workarounds.
Without this change badblocks will be reported at the wrong offset.
These have received a build success report from the kbuild robot and
have appeared in -next with no reported issues"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
libnvdimm, pfn: fix nvdimm_namespace_add_poison() vs section alignment
libnvdimm, pfn: fix uuid validation
libnvdimm: fix smart data retrieval
Linus Torvalds [Sat, 9 Apr 2016 20:28:50 +0000 (13:28 -0700)]
Merge tag 'gpio-v4.6-3' of git://git./linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Here is a set of four GPIO fixes. The two fixes to the core are
serious as they are regressing minor architectures.
Core fixes:
- Defer GPIO device setup until after gpiolib is initialized.
It turns out that a few very tightly integrated GPIO platform
drivers initialize so early (befor core_initcall()) so that the
gpiolib isn't even initialized itself. That limits what the
library can do, and we cannot reference uninitialized fields until
later.
Defer some of the initialization until right after the gpiolib is
initialized in these (rare) cases.
- As a consequence: do not use devm_* resources when allocating the
states in the initial set-up of the gpiochip.
Driver fixes:
- In ACPI retrieveal: ignore GpioInt when looking for output GPIOs.
- Fix legacy builds on the PXA without a backing pin controller.
- Use correct datatype on pca953x register writes"
* tag 'gpio-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: pca953x: Use correct u16 value for register word write
gpiolib: Defer gpio device setup until after gpiolib initialization
gpiolib: Do not use devm functions when registering gpio chip
gpio: pxa: fix legacy non pinctrl aware builds
gpio / ACPI: ignore GpioInt() GPIOs when requesting GPIO_OUT_*
Linus Torvalds [Sat, 9 Apr 2016 19:32:44 +0000 (12:32 -0700)]
Merge tag 'tty-4.6-rc3' of git://git./linux/kernel/git/gregkh/tty
Pull tty fixes from Greg KH:
"Here are two tty fixes for issues found.
One was due to a merge error in 4.6-rc1, and the other a regression
fix for UML consoles that broke in 4.6-rc1.
Both have been in linux-next for a while"
* tag 'tty-4.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: Fix merge of "tty: Refactor tty_open()"
tty: Fix UML console breakage
Linus Torvalds [Sat, 9 Apr 2016 19:23:02 +0000 (12:23 -0700)]
Merge tag 'usb-4.6-rc3' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some USB fixes and new device ids for 4.6-rc3.
Nothing major, the normal USB gadget fixes and usb-serial driver ids,
along with some other fixes mixed in. All except the USB serial ids
have been tested in linux-next, the id additions should be fine as
they are 'trivial'"
* tag 'usb-4.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (25 commits)
USB: option: add "D-Link DWM-221 B1" device id
USB: serial: cp210x: Adding GE Healthcare Device ID
USB: serial: ftdi_sio: Add support for ICP DAS I-756xU devices
usb: dwc3: keystone: drop dma_mask configuration
usb: gadget: udc-core: remove manual dma configuration
usb: dwc3: pci: add ID for one more Intel Broxton platform
usb: renesas_usbhs: fix to avoid using a disabled ep in usbhsg_queue_done()
usb: dwc2: do not override forced dr_mode in gadget setup
usb: gadget: f_midi: unlock on error
USB: digi_acceleport: do sanity checking for the number of ports
USB: cypress_m8: add endpoint sanity check
USB: mct_u232: add sanity checking in probe
usb: fix regression in SuperSpeed endpoint descriptor parsing
USB: usbip: fix potential out-of-bounds write
usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer
usb: renesas_usbhs: avoid NULL pointer derefernce in usbhsf_pkt_handler()
usb: gadget: f_midi: Fixed a bug when buflen was smaller than wMaxPacketSize
usb: phy: qcom-8x16: fix regulator API abuse
usb: ch9: Fix SSP Device Cap wFunctionalitySupport type
usb: gadget: composite: Access SSP Dev Cap fields properly
...
Linus Torvalds [Sat, 9 Apr 2016 19:09:37 +0000 (12:09 -0700)]
Merge tag 'staging-4.6-rc3' of git://git./linux/kernel/git/gregkh/staging
Pull staging and IIO driver fixes from Greg KH:
"Here are some IIO driver fixes, along with two staging driver fixes
for 4.6-rc3.
One staging driver patch reverts the deletion of a driver that
happened in 4.6-rc1. We thought that laptop.org was dead, but it's
still alive and kicking, and has users that were mad we broke their
hardware by deleting a driver for their machines. So that driver is
added back and everyone is happy again.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-4.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
Revert "Staging: olpc_dcon: Remove obsolete driver"
staging/rdma/hfi1: select CRC32
iio: gyro: bmg160: fix buffer read values
iio: gyro: bmg160: fix endianness when reading axes
iio: accel: bmc150: fix endianness when reading axes
iio: st_magn: always define ST_MAGN_TRIGGER_SET_STATE
iio: fix config watermark initial value
iio: health: max30100: correct FIFO check condition
iio: imu: Fix inv_mpu6050 dependencies
iio: adc: Fix build error of missing devm_ioremap_resource on UM
iio: light: apds9960: correct FIFO check condition
iio: adc: max1363: correct reference voltage
iio: adc: max1363: add missing adc to max1363_id
Linus Torvalds [Sat, 9 Apr 2016 19:00:42 +0000 (12:00 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of eight fixes.
Two are trivial gcc-6 updates (brace additions and unused variable
removal). There's a couple of cxlflash regressions, a correction for
sd being overly chatty on revalidation (causing excess log increases).
A VPD issue which could crash USB devices because they seem very
intolerant to VPD inquiries, an ALUA deadlock fix and a mpt3sas buffer
overrun fix"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: Do not attach VPD to devices that don't support it
sd: Fix excessive capacity printing on devices with blocks bigger than 512 bytes
scsi_dh_alua: Fix a recently introduced deadlock
scsi: Declare local symbols static
cxlflash: Move to exponential back-off when cmd_room is not available
cxlflash: Fix regression issue with re-ordering patch
mpt3sas: Don't overreach ioc->reply_post[] during initialization
aacraid: add missing curly braces
Linus Torvalds [Sat, 9 Apr 2016 18:23:27 +0000 (11:23 -0700)]
Merge tag 'md/4.6-rc2-fix' of git://git./linux/kernel/git/shli/md
Pull MD fixes from Shaohua Li:
"This update mainly fixes bugs:
- fix error handling (Guoqing)
- fix a crash when a disk is hotremoved (me)
- fix a dead loop (Wei Fang)"
* tag 'md/4.6-rc2-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
md/bitmap: clear bitmap if bitmap_create failed
MD: add rdev reference for super write
md: fix a trivial typo in comments
md:raid1: fix a dead loop when read from a WriteMostly disk
Linus Torvalds [Sat, 9 Apr 2016 18:03:48 +0000 (11:03 -0700)]
Merge tag 'pm+acpi-4.6-rc3' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael Wysocki:
"Fixes for some issues discovered after recent changes and for some
that have just been found lately regardless of those changes
(intel_pstate, intel_idle, PM core, mailbox/pcc, turbostat) plus
support for some new CPU models (intel_idle, Intel RAPL driver,
turbostat) and documentation updates (intel_pstate, PM core).
Specifics:
- intel_pstate fixes for two issues exposed by the recent switch over
from using timers and for one issue introduced during the 4.4 cycle
plus new comments describing data structures used by the driver
(Rafael Wysocki, Srinivas Pandruvada).
- intel_idle fixes related to CPU offline/online (Richard Cochran).
- intel_idle support (new CPU IDs and state definitions mostly) for
Skylake-X and Kabylake processors (Len Brown).
- PCC mailbox driver fix for an out-of-bounds memory access that may
cause the kernel to panic() (Shanker Donthineni).
- New (missing) CPU ID for one apparently overlooked Haswell model in
the Intel RAPL power capping driver (Srinivas Pandruvada).
- Fix for the PM core's wakeup IRQs framework to make it work after
wakeup settings reconfiguration from sysfs (Grygorii Strashko).
- Runtime PM documentation update to make it describe what needs to
be done during device removal more precisely (Krzysztof Kozlowski).
- Stale comment removal cleanup in the cpufreq-dt driver (Viresh
Kumar).
- turbostat utility fixes and support for Broxton, Skylake-X and
Kabylake processors (Len Brown)"
* tag 'pm+acpi-4.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (28 commits)
PM / wakeirq: fix wakeirq setting after wakup re-configuration from sysfs
tools/power turbostat: work around RC6 counter wrap
tools/power turbostat: initial KBL support
tools/power turbostat: initial SKX support
tools/power turbostat: decode BXT TSC frequency via CPUID
tools/power turbostat: initial BXT support
tools/power turbostat: print IRTL MSRs
tools/power turbostat: SGX state should print only if --debug
intel_idle: Add KBL support
intel_idle: Add SKX support
intel_idle: Clean up all registered devices on exit.
intel_idle: Propagate hot plug errors.
intel_idle: Don't overreact to a cpuidle registration failure.
intel_idle: Setup the timer broadcast only on successful driver load.
intel_idle: Avoid a double free of the per-CPU data.
intel_idle: Fix dangling registration on error path.
intel_idle: Fix deallocation order on the driver exit path.
intel_idle: Remove redundant initialization calls.
intel_idle: Fix a helper function's return value.
intel_idle: remove useless return from void function.
...
Linus Torvalds [Sat, 9 Apr 2016 17:50:44 +0000 (10:50 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Stale SKB data pointer access across pskb_may_pull() calls in L2TP,
from Haishuang Yan.
2) Fix multicast frame handling in mac80211 AP code, from Felix
Fietkau.
3) mac80211 station hashtable insert errors not handled properly, fix
from Johannes Berg.
4) Fix TX descriptor count limit handling in e1000, from Alexander
Duyck.
5) Revert a buggy netdev refcount fix in netpoll, from Bjorn Helgaas.
6) Must assign rtnl_link_ops of the device before registering it, fix
in ip6_tunnel from Thadeu Lima de Souza Cascardo.
7) Memory leak fix in tc action net exit, from WANG Cong.
8) Add missing AF_KCM entries to name tables, from Dexuan Cui.
9) Fix regression in GRE handling of csums wrt. FOU, from Alexander
Duyck.
10) Fix memory allocation alignment and congestion map corruption in
RDS, from Shamir Rabinovitch.
11) Fix default qdisc regression in tuntap driver, from Jason Wang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits)
bridge, netem: mark mailing lists as moderated
tuntap: restore default qdisc
mpls: find_outdev: check for err ptr in addition to NULL check
ipv6: Count in extension headers in skb->network_header
RDS: fix congestion map corruption for PAGE_SIZE > 4k
RDS: memory allocated must be align to 8
GRE: Disable segmentation offloads w/ CSUM and we are encapsulated via FOU
net: add the AF_KCM entries to family name tables
MAINTAINERS: intel-wired-lan list is moderated
lib/test_bpf: Add additional BPF_ADD tests
lib/test_bpf: Add test to check for result of 32-bit add that overflows
lib/test_bpf: Add tests for unsigned BPF_JGT
lib/test_bpf: Fix JMP_JSET tests
VSOCK: Detach QP check should filter out non matching QPs.
stmmac: fix adjust link call in case of a switch is attached
af_packet: tone down the Tx-ring unsupported spew.
net_sched: fix a memory leak in tc action
samples/bpf: Enable powerpc support
samples/bpf: Use llc in PATH, rather than a hardcoded value
samples/bpf: Fix build breakage with map_perf_test_user.c
...
Linus Torvalds [Sat, 9 Apr 2016 17:41:34 +0000 (10:41 -0700)]
Merge branch 'for-linus-4.6' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"These are bug fixes, including a really old fsync bug, and a few trace
points to help us track down problems in the quota code"
* 'for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: fix file/data loss caused by fsync after rename and new inode
btrfs: Reset IO error counters before start of device replacing
btrfs: Add qgroup tracing
Btrfs: don't use src fd for printk
btrfs: fallback to vmalloc in btrfs_compare_tree
btrfs: handle non-fatal errors in btrfs_qgroup_inherit()
btrfs: Output more info for enospc_debug mount option
Btrfs: fix invalid reference in replace_path
Btrfs: Improve FL_KEEP_SIZE handling in fallocate
Linus Torvalds [Sat, 9 Apr 2016 17:33:58 +0000 (10:33 -0700)]
Merge tag 'for-linus-4.6-ofs1' of git://git./linux/kernel/git/hubcap/linux
Pull orangefs fixes from Mike Marshall:
"Orangefs cleanups and a strncpy vulnerability fix.
Cleanups:
- remove an unused variable from orangefs_readdir.
- clean up printk wrapper used for ofs "gossip" debugging.
- clean up truncate ctime and mtime setting in inode.c
- remove a useless null check found by coccinelle.
- optimize some memcpy/memset boilerplate code.
- remove some useless sanity checks from xattr.c
Fix:
- fix a potential strncpy vulnerability"
* tag 'for-linus-4.6-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
orangefs: remove unused variable
orangefs: Add KERN_<LEVEL> to gossip_<level> macros
orangefs: strncpy -> strscpy
orangefs: clean up truncate ctime and mtime setting
Orangefs: fix ifnullfree.cocci warnings
Orangefs: optimize boilerplate code.
Orangefs: xattr.c cleanup
Linus Torvalds [Sat, 9 Apr 2016 17:23:45 +0000 (10:23 -0700)]
Merge tag 'iommu-fixes-v4.6-rc2' of git://git./linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
- compile-time fixes (warnings and failures)
- a bug in iommu core code which could cause the group->domain pointer
to be falsly cleared
- fix in scatterlist handling of the ARM common DMA-API code
- stall detection fix for the Rockchip IOMMU driver
* tag 'iommu-fixes-v4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/vt-d: Silence an uninitialized variable warning
iommu/rockchip: Fix "is stall active" check
iommu: Don't overwrite domain pointer when there is no default_domain
iommu/dma: Restore scatterlist offsets correctly
iommu: provide of_xlate pointer unconditionally
Wolfram Sang [Sun, 3 Apr 2016 21:32:00 +0000 (23:32 +0200)]
i2c: jz4780: really prevent potential division by zero
Make sure we avoid a division-by-zero OOPS in case clock-frequency is
set too low in DT. Add missing '\n' while we are here.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Axel Lin <axel.lin@ingics.com>
Wolfram Sang [Sat, 9 Apr 2016 06:32:37 +0000 (08:32 +0200)]
Revert "i2c: jz4780: prevent potential division by zero"
This reverts commit
34cf2acdafaa31a13821e45de5ee896adcd307b1. 'ret' is
not set when bailing out. Also, there is a better place to check for 0.
Reported-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Greg Kroah-Hartman [Fri, 8 Apr 2016 22:41:58 +0000 (15:41 -0700)]
Merge tag 'usb-serial-4.6-rc3' of git://git./linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for v4.6-rc3
Here are some new device ids.
Signed-off-by: Johan Hovold <johan@kernel.org>
David S. Miller [Fri, 8 Apr 2016 20:41:28 +0000 (16:41 -0400)]
Merge tag 'mac80211-for-davem-2016-04-06' of git://git./linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
For the current RC series, we have the following fixes:
* TDLS fixes from Arik and Ilan
* rhashtable fixes from Ben and myself
* documentation fixes from Luis
* U-APSD fixes from Emmanuel
* a TXQ fix from Felix
* and a compiler warning suppression from Jeff
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
stephen hemminger [Tue, 5 Apr 2016 20:43:53 +0000 (13:43 -0700)]
bridge, netem: mark mailing lists as moderated
I moderate these (lightly loaded) lists to block spam.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Helge Deller [Fri, 8 Apr 2016 19:36:06 +0000 (21:36 +0200)]
parisc: Update comment regarding relative extable support
Update the comment to reflect the changes of commit
0de7985 (parisc: Use
generic extable search and sort routines).
Signed-off-by: Helge Deller <deller@gmx.de>
Helge Deller [Fri, 8 Apr 2016 16:32:52 +0000 (18:32 +0200)]
parisc: Unbreak handling exceptions from kernel modules
Handling exceptions from modules never worked on parisc.
It was just masked by the fact that exceptions from modules
don't happen during normal use.
When a module triggers an exception in get_user() we need to load the
main kernel dp value before accessing the exception_data structure, and
afterwards restore the original dp value of the module on exit.
Noticed-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Helge Deller [Fri, 8 Apr 2016 16:18:48 +0000 (18:18 +0200)]
parisc: Fix kernel crash with reversed copy_from_user()
The kernel module testcase (lib/test_user_copy.c) exhibited a kernel
crash on parisc if the parameters for copy_from_user were reversed
("illegal reversed copy_to_user" testcase).
Fix this potential crash by checking the fault handler if the faulting
address is in the exception table.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>
Helge Deller [Fri, 8 Apr 2016 16:11:33 +0000 (18:11 +0200)]
parisc: Avoid function pointers for kernel exception routines
We want to avoid the kernel module loader to create function pointers
for the kernel fixup routines of get_user() and put_user(). Changing
the external reference from function type to int type fixes this.
This unbreaks exception handling for get_user() and put_user() when
called from a kernel module.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Helge Deller [Fri, 8 Apr 2016 20:10:35 +0000 (22:10 +0200)]
parisc: Handle R_PARISC_PCREL32 relocations in kernel modules
Commit
0de7985 (parisc: Use generic extable search and sort routines)
changed the exception tables to use 32bit relative offsets.
This patch now adds support to the kernel module loader to handle such
R_PARISC_PCREL32 relocations for 32- and 64-bit modules.
Signed-off-by: Helge Deller <deller@gmx.de>
Jason Wang [Fri, 8 Apr 2016 05:26:48 +0000 (13:26 +0800)]
tuntap: restore default qdisc
After commit
f84bb1eac027 ("net: fix IFF_NO_QUEUE for drivers using
alloc_netdev"), default qdisc was changed to noqueue because
tuntap does not set tx_queue_len during .setup(). This patch restores
default qdisc by setting tx_queue_len in tun_setup().
Fixes:
f84bb1eac027 ("net: fix IFF_NO_QUEUE for drivers using alloc_netdev")
Cc: Phil Sutter <phil@nwl.cc>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
Martin Brandenburg [Mon, 4 Apr 2016 20:26:38 +0000 (16:26 -0400)]
orangefs: remove unused variable
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Rafael J. Wysocki [Fri, 8 Apr 2016 19:46:56 +0000 (21:46 +0200)]
Merge branches 'pm-core', 'powercap' and 'pm-tools'
* pm-core:
PM / wakeirq: fix wakeirq setting after wakup re-configuration from sysfs
PM / runtime: Document steps for device removal
* powercap:
powercap: intel_rapl: Add missing Haswell model
* pm-tools:
tools/power turbostat: work around RC6 counter wrap
tools/power turbostat: initial KBL support
tools/power turbostat: initial SKX support
tools/power turbostat: decode BXT TSC frequency via CPUID
tools/power turbostat: initial BXT support
tools/power turbostat: print IRTL MSRs
tools/power turbostat: SGX state should print only if --debug
Rafael J. Wysocki [Fri, 8 Apr 2016 19:46:05 +0000 (21:46 +0200)]
Merge branches 'pm-cpufreq', 'pm-cpuidle' and 'acpi-cppc'
* pm-cpufreq:
cpufreq: dt: Drop stale comment
cpufreq: intel_pstate: Documenation for structures
cpufreq: intel_pstate: fix inconsistency in setting policy limits
intel_pstate: Avoid extra invocation of intel_pstate_sample()
intel_pstate: Do not set utilization update hook too early
* pm-cpuidle:
intel_idle: Add KBL support
intel_idle: Add SKX support
intel_idle: Clean up all registered devices on exit.
intel_idle: Propagate hot plug errors.
intel_idle: Don't overreact to a cpuidle registration failure.
intel_idle: Setup the timer broadcast only on successful driver load.
intel_idle: Avoid a double free of the per-CPU data.
intel_idle: Fix dangling registration on error path.
intel_idle: Fix deallocation order on the driver exit path.
intel_idle: Remove redundant initialization calls.
intel_idle: Fix a helper function's return value.
intel_idle: remove useless return from void function.
* acpi-cppc:
mailbox: pcc: Don't access an unmapped memory address space
Joe Perches [Sun, 27 Mar 2016 21:34:52 +0000 (14:34 -0700)]
orangefs: Add KERN_<LEVEL> to gossip_<level> macros
Emit the logging messages at the appropriate levels.
Miscellanea:
o Change format to fmt
o Use the more common ##__VA_ARGS__
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Martin Brandenburg [Fri, 8 Apr 2016 17:33:21 +0000 (13:33 -0400)]
orangefs: strncpy -> strscpy
It would have been possible for a rogue client-core to send in a symlink
target which is not NUL terminated. This returns EIO if the client-core
gives us corrupt data.
Leave debugfs and superblock code as is for now.
Other dcache.c and namei.c strncpy instances are safe because
ORANGEFS_NAME_MAX = NAME_MAX + 1; there is always enough space for a
name plus a NUL byte.
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Martin Brandenburg [Mon, 4 Apr 2016 20:26:36 +0000 (16:26 -0400)]
orangefs: clean up truncate ctime and mtime setting
The ctime and mtime are always updated on a successful ftruncate and
only updated on a successful truncate where the size changed.
We handle the ``if the size changed'' bit.
This matches FUSE's behavior.
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
kbuild test robot [Sat, 26 Mar 2016 18:54:23 +0000 (02:54 +0800)]
Orangefs: fix ifnullfree.cocci warnings
fs/orangefs/orangefs-debugfs.c:130:2-26: WARNING: NULL check before freeing functions like kfree, debugfs_remove, debugfs_remove_recursive or usb_free_urb is not needed. Maybe consider reorganizing relevant code to avoid passing NULL values.
NULL check before some freeing functions is not needed.
Based on checkpatch warning
"kfree(NULL) is safe this check is probably not required"
and kfreeaddr.cocci by Julia Lawall.
Generated by: scripts/coccinelle/free/ifnullfree.cocci
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Mike Marshall [Wed, 6 Apr 2016 15:19:37 +0000 (11:19 -0400)]
Orangefs: optimize boilerplate code.
Suggested by David Binderman <dcb314@hotmail.com>
The former can potentially be a performance win over the latter.
memcpy(d, s, len);
memset(d+len, c, size-len);
memset(d, c, size);
memcpy(d, s, len);
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Mike Marshall [Wed, 6 Apr 2016 14:52:38 +0000 (10:52 -0400)]
Orangefs: xattr.c cleanup
1. It is nonsense to test for negative size_t, suggested by
David Binderman <dcb314@hotmail.com>
2. By the time Orangefs gets called, the vfs has ensured that
name != NULL, and that buffer and size are sane.
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Roopa Prabhu [Fri, 8 Apr 2016 04:28:38 +0000 (21:28 -0700)]
mpls: find_outdev: check for err ptr in addition to NULL check
find_outdev calls inet{,6}_fib_lookup_dev() or dev_get_by_index() to
find the output device. In case of an error, inet{,6}_fib_lookup_dev()
returns error pointer and dev_get_by_index() returns NULL. But the function
only checks for NULL and thus can end up calling dev_put on an ERR_PTR.
This patch adds an additional check for err ptr after the NULL check.
Before: Trying to add an mpls route with no oif from user, no available
path to 10.1.1.8 and no default route:
$ip -f mpls route add 100 as 200 via inet 10.1.1.8
[ 822.337195] BUG: unable to handle kernel NULL pointer dereference at
00000000000003a3
[ 822.340033] IP: [<
ffffffff8148781e>] mpls_nh_assign_dev+0x10b/0x182
[ 822.340033] PGD
1db38067 PUD
1de9e067 PMD 0
[ 822.340033] Oops: 0000 [#1] SMP
[ 822.340033] Modules linked in:
[ 822.340033] CPU: 0 PID: 11148 Comm: ip Not tainted 4.5.0-rc7+ #54
[ 822.340033] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS
rel-1.7.5.1-0-g8936dbb-20141113_115728-nilsson.home.kraxel.org
04/01/2014
[ 822.340033] task:
ffff88001db82580 ti:
ffff88001dad4000 task.ti:
ffff88001dad4000
[ 822.340033] RIP: 0010:[<
ffffffff8148781e>] [<
ffffffff8148781e>]
mpls_nh_assign_dev+0x10b/0x182
[ 822.340033] RSP: 0018:
ffff88001dad7a88 EFLAGS:
00010282
[ 822.340033] RAX:
ffffffffffffff9b RBX:
ffffffffffffff9b RCX:
0000000000000002
[ 822.340033] RDX:
00000000ffffff9b RSI:
0000000000000008 RDI:
0000000000000000
[ 822.340033] RBP:
ffff88001ddc9ea0 R08:
ffff88001e9f1768 R09:
0000000000000000
[ 822.340033] R10:
ffff88001d9c1100 R11:
ffff88001e3c89f0 R12:
ffffffff8187e0c0
[ 822.340033] R13:
ffffffff8187e0c0 R14:
ffff88001ddc9e80 R15:
0000000000000004
[ 822.340033] FS:
00007ff9ed798700(0000) GS:
ffff88001fc00000(0000)
knlGS:
0000000000000000
[ 822.340033] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
[ 822.340033] CR2:
00000000000003a3 CR3:
000000001de89000 CR4:
00000000000006f0
[ 822.340033] Stack:
[ 822.340033]
0000000000000000 0000000100000000 0000000000000000
0000000000000000
[ 822.340033]
0000000000000000 0801010a00000000 0000000000000000
0000000000000000
[ 822.340033]
0000000000000004 ffffffff8148749b ffffffff8187e0c0
000000000000001c
[ 822.340033] Call Trace:
[ 822.340033] [<
ffffffff8148749b>] ? mpls_rt_alloc+0x2b/0x3e
[ 822.340033] [<
ffffffff81488e66>] ? mpls_rtm_newroute+0x358/0x3e2
[ 822.340033] [<
ffffffff810e7bbc>] ? get_page+0x5/0xa
[ 822.340033] [<
ffffffff813b7d94>] ? rtnetlink_rcv_msg+0x17e/0x191
[ 822.340033] [<
ffffffff8111794e>] ? __kmalloc_track_caller+0x8c/0x9e
[ 822.340033] [<
ffffffff813c9393>] ?
rht_key_hashfn.isra.20.constprop.57+0x14/0x1f
[ 822.340033] [<
ffffffff813b7c16>] ? __rtnl_unlock+0xc/0xc
[ 822.340033] [<
ffffffff813cb794>] ? netlink_rcv_skb+0x36/0x82
[ 822.340033] [<
ffffffff813b4507>] ? rtnetlink_rcv+0x1f/0x28
[ 822.340033] [<
ffffffff813cb2b1>] ? netlink_unicast+0x106/0x189
[ 822.340033] [<
ffffffff813cb5b3>] ? netlink_sendmsg+0x27f/0x2c8
[ 822.340033] [<
ffffffff81392ede>] ? sock_sendmsg_nosec+0x10/0x1b
[ 822.340033] [<
ffffffff81393df1>] ? ___sys_sendmsg+0x182/0x1e3
[ 822.340033] [<
ffffffff810e4f35>] ?
__alloc_pages_nodemask+0x11c/0x1e4
[ 822.340033] [<
ffffffff8110619c>] ? PageAnon+0x5/0xd
[ 822.340033] [<
ffffffff811062fe>] ? __page_set_anon_rmap+0x45/0x52
[ 822.340033] [<
ffffffff810e7bbc>] ? get_page+0x5/0xa
[ 822.340033] [<
ffffffff810e85ab>] ? __lru_cache_add+0x1a/0x3a
[ 822.340033] [<
ffffffff81087ea9>] ? current_kernel_time64+0x9/0x30
[ 822.340033] [<
ffffffff813940c4>] ? __sys_sendmsg+0x3c/0x5a
[ 822.340033] [<
ffffffff8148f597>] ?
entry_SYSCALL_64_fastpath+0x12/0x6a
[ 822.340033] Code: 83 08 04 00 00 65 ff 00 48 8b 3c 24 e8 40 7c f2 ff
eb 13 48 c7 c3 9f ff ff ff eb 0f 89 ce e8 f1 ae f1 ff 48 89 c3 48 85 db
74 15 <48> 8b 83 08 04 00 00 65 ff 08 48 81 fb 00 f0 ff ff 76 0d eb 07
[ 822.340033] RIP [<
ffffffff8148781e>] mpls_nh_assign_dev+0x10b/0x182
[ 822.340033] RSP <
ffff88001dad7a88>
[ 822.340033] CR2:
00000000000003a3
[ 822.435363] ---[ end trace
98cc65e6f6b8bf11 ]---
After patch:
$ip -f mpls route add 100 as 200 via inet 10.1.1.8
RTNETLINK answers: Network is unreachable
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Reported-by: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yong Li [Wed, 30 Mar 2016 06:49:14 +0000 (14:49 +0800)]
gpio: pca953x: Use correct u16 value for register word write
The current implementation only uses the first byte in val,
the second byte is always 0. Change it to use cpu_to_le16
to write the two bytes into the register
Cc: stable@vger.kernel.org
Signed-off-by: Yong Li <sdliyong@gmail.com>
Reviewed-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Guenter Roeck [Thu, 31 Mar 2016 15:11:30 +0000 (08:11 -0700)]
gpiolib: Defer gpio device setup until after gpiolib initialization
Since commit
ff2b13592299 ("gpio: make the gpiochip a real device"),
attempts to add a gpio chip prior to gpiolib initialization cause
the system to crash. This happens because gpio_bus_type has not been
registered yet. Defer creating gpio devices until after gpiolib has
been initialized to fix the problem.
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Fixes:
ff2b13592299 ("gpio: make the gpiochip a real device")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Guenter Roeck [Thu, 31 Mar 2016 15:11:29 +0000 (08:11 -0700)]
gpiolib: Do not use devm functions when registering gpio chip
It is possible that a gpio chip is registered before the gpiolib
initialization code has run. This means we can not use devm_ functions
to allocate memory at that time. Do it the old fashioned way.
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Robert Jarzmik [Tue, 29 Mar 2016 08:04:00 +0000 (10:04 +0200)]
gpio: pxa: fix legacy non pinctrl aware builds
In legacy pxa builds, ie. non device-tree and platform-data only builds,
pinctrl is not yet available. As a consequence, the pinctrl gpio
direction change function is a stub, returning always success.
In the current state, the gpio driver direction function believes the
pinctrl direction change was successful, and exits without actually
changing the gpio direction.
This patch changes the logic :
- if the pinctrl direction function fails, gpio direction will report
that failure
- if the pinctrl direction function succeeds, gpio direction is changed
by the gpio driver anyway.
This is sub optimal in the pinctrl aware case, as the gpio direction
will be changed twice: once by pinctrl function and another time by
the gpio direction function.
Yet it should be acceptable in this form, as this is functional for all
pxa platforms (device-tree and platform-data), and moreover changing a
gpio direction is very very seldom, usually in machine initialization,
seldom in drivers probe, and an exception for ac97 reset bug.
Fixes:
a770d946371e ("gpio: pxa: add pin control gpio direction and request")
Reported-by: Guenter Roeck <guenter@roeck-us.net>
Tested-by: Guenter Roeck <guenter@roeck-us.net>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Dmitry Torokhov [Thu, 24 Mar 2016 17:50:25 +0000 (10:50 -0700)]
gpio / ACPI: ignore GpioInt() GPIOs when requesting GPIO_OUT_*
When firmware does not use _DSD properties that allow properly name GPIO
resources, the kernel falls back on parsing _CRS resources, and will
return entries described as GpioInt() as general purpose GPIOs even
though they are meant to be used simply as interrupt sources for the
device:
Device (ETSA)
{
Name (_HID, "ELAN0001")
...
Method(_CRS, 0x0, NotSerialized)
{
Name(BUF0,ResourceTemplate ()
{
I2CSerialBus(
0x10, /* SlaveAddress */
ControllerInitiated, /* SlaveMode */
400000, /* ConnectionSpeed */
AddressingMode7Bit, /* AddressingMode */
"\\_SB.I2C1", /* ResourceSource */
)
GpioInt (Edge, ActiveLow, ExclusiveAndWake, PullNone,,
"\\_SB.GPSW") { BOARD_TOUCH_GPIO_INDEX }
} )
Return (BUF0)
}
...
}
This gives troubles with drivers such as Elan Touchscreen driver
(elants_i2c) that uses devm_gpiod_get to look up "reset" GPIO line and
decide whether the driver is responsible for powering up and resetting
the device, or firmware is. In the above case the lookup succeeds, we
map GPIO as output and later fail to request client->irq interrupt that
is mapped to the same GPIO.
Let's ignore resources described as GpioInt() while parsing _CRS when
requesting output GPIOs (but allow them when requesting GPIOD_ASIS or
GPIOD_IN as some drivers, such as i2c-hid, do request GPIO as input and
then map it to interrupt with gpiod_to_irq).
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>