cat /sys/kernel/debug/pinctrl/
921f080.pin-controller-front1/pingroups
leads to the kernel warning:
[ 86.083560] st-pinctrl
921f080.pin-controller-front1: failed to get pin(-517) name
[ 86.091192] ------------[ cut here ]------------
[ 86.095897] WARNING: CPU: 0 PID: 1579 at drivers/pinctrl/core.c:1414 pinctrl_groups_show+0x144/0x16c
[ 86.105072] Modules linked in:
[ 86.108127] CPU: 0 PID: 1579 Comm: cat Tainted: G W
4.6.0-00011-g9ba82e2-dirty #5
[ 86.116728] Hardware name: STiH415/416 SoC with Flattened Device Tree
[ 86.123194] [<
c010fa90>] (unwind_backtrace) from [<
c010bea8>] (show_stack+0x10/0x14)
[ 86.130943] [<
c010bea8>] (show_stack) from [<
c038c5b0>] (dump_stack+0x98/0xac)
[ 86.138167] [<
c038c5b0>] (dump_stack) from [<
c0129b58>] (__warn+0xe8/0x100)
[ 86.145121] [<
c0129b58>] (__warn) from [<
c0129c20>] (warn_slowpath_null+0x20/0x28)
[ 86.152681] [<
c0129c20>] (warn_slowpath_null) from [<
c03bf810>] (pinctrl_groups_show+0x144/0x16c)
[ 86.161550] [<
c03bf810>] (pinctrl_groups_show) from [<
c0218a5c>] (seq_read+0x1ec/0x4c0)
[ 86.169553] [<
c0218a5c>] (seq_read) from [<
c01f66f0>] (__vfs_read+0x20/0xd0)
[ 86.176592] [<
c01f66f0>] (__vfs_read) from [<
c01f7414>] (vfs_read+0x7c/0x104)
[ 86.183716] [<
c01f7414>] (vfs_read) from [<
c01f81a0>] (SyS_read+0x44/0x9c)
[ 86.190585] [<
c01f81a0>] (SyS_read) from [<
c0108400>] (ret_fast_syscall+0x0/0x3c)
[ 86.198158] ---[ end trace
1aa2e3ae820eeb3e ]---
Move the pincontroller pio20 node above the tsin4 node, which referred
to it, fix this warning.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
interrupt-names = "irqmux";
ranges = <0 0x09210000 0x10000>;
+ pio20: pio@09210000 {
+ gpio-controller;
+ #gpio-cells = <1>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ reg = <0x0 0x100>;
+ st,bank-name = "PIO20";
+ };
+
tsin4 {
pinctrl_tsin4_serial_alt1: tsin4_serial_alt1 {
st,pins {
};
};
};
-
- pio20: pio@09210000 {
- gpio-controller;
- #gpio-cells = <1>;
- interrupt-controller;
- #interrupt-cells = <2>;
- reg = <0x0 0x100>;
- st,bank-name = "PIO20";
- };
};
pin-controller-rear {