From: Liviu Dudau Date: Thu, 2 Apr 2015 18:48:39 +0000 (+0100) Subject: drm: Add support for ARM's HDLCD controller. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8e22d79240d95c92b6cbc4c4e4139848de458927;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git drm: Add support for ARM's HDLCD controller. The HDLCD controller is a display controller that supports resolutions up to 4096x4096 pixels. It is present on various development boards produced by ARM Ltd and emulated by the latest Fast Models from the company. Cc: David Airlie Cc: Robin Murphy Signed-off-by: Liviu Dudau [Kconfig cleanup and !CONFIG_PM fixes] Signed-off-by: Arnd Bergmann Acked-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index 8ae7ab68cb97..438e92d4c389 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -106,6 +106,8 @@ config DRM_TDFX Choose this option if you have a 3dfx Banshee or Voodoo3 (or later), graphics card. If M is selected, the module will be called tdfx. +source "drivers/gpu/drm/arm/Kconfig" + config DRM_R128 tristate "ATI Rage 128" depends on DRM && PCI diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 61766dec6a8d..f80fdbaeb641 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -33,6 +33,7 @@ CFLAGS_drm_trace_points.o := -I$(src) obj-$(CONFIG_DRM) += drm.o obj-$(CONFIG_DRM_MIPI_DSI) += drm_mipi_dsi.o +obj-$(CONFIG_DRM_ARM) += arm/ obj-$(CONFIG_DRM_TTM) += ttm/ obj-$(CONFIG_DRM_TDFX) += tdfx/ obj-$(CONFIG_DRM_R128) += r128/ diff --git a/drivers/gpu/drm/arm/Kconfig b/drivers/gpu/drm/arm/Kconfig new file mode 100644 index 000000000000..eaed454e043c --- /dev/null +++ b/drivers/gpu/drm/arm/Kconfig @@ -0,0 +1,27 @@ +config DRM_ARM + bool + help + Choose this option to select drivers for ARM's devices + +config DRM_HDLCD + tristate "ARM HDLCD" + depends on DRM && OF && (ARM || ARM64) + depends on COMMON_CLK + select DRM_ARM + select DRM_KMS_HELPER + select DRM_KMS_FB_HELPER + select DRM_KMS_CMA_HELPER + help + Choose this option if you have an ARM High Definition Colour LCD + controller. + + If M is selected the module will be called hdlcd. + +config DRM_HDLCD_SHOW_UNDERRUN + bool "Show underrun conditions" + depends on DRM_HDLCD + default n + help + Enable this option to show in red colour the pixels that the + HDLCD device did not fetch from framebuffer due to underrun + conditions. diff --git a/drivers/gpu/drm/arm/Makefile b/drivers/gpu/drm/arm/Makefile new file mode 100644 index 000000000000..89dcb7bab93a --- /dev/null +++ b/drivers/gpu/drm/arm/Makefile @@ -0,0 +1,2 @@ +hdlcd-y := hdlcd_drv.o hdlcd_crtc.o +obj-$(CONFIG_DRM_HDLCD) += hdlcd.o diff --git a/drivers/gpu/drm/arm/hdlcd_crtc.c b/drivers/gpu/drm/arm/hdlcd_crtc.c new file mode 100644 index 000000000000..fef1b04c2aab --- /dev/null +++ b/drivers/gpu/drm/arm/hdlcd_crtc.c @@ -0,0 +1,327 @@ +/* + * Copyright (C) 2013-2015 ARM Limited + * Author: Liviu Dudau + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Implementation of a CRTC class for the HDLCD driver. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include