linux-kernel - [PATCH 1/1] ARM: exynos_defconfig: Enable options for display panel support

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Date:	Sat, 23 Aug 2014 01:13:05 +0200
From:	Javier Martinez Canillas <javier.martinez@...labora.co.uk>
To:	Kukjin Kim <kgene.kim@...sung.com>
Cc:	Doug Anderson <dianders@...omium.org>,
	Olof Johansson <olof@...om.net>,
	Kevin Hilman <khilman@...aro.org>, afaerber@...e.de,
	Ajay Kumar <ajaykumar.rs@...sung.com>,
	linux-samsung-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Javier Martinez Canillas <javier.martinez@...labora.co.uk>
Subject: [PATCH 1/1] ARM: exynos_defconfig: Enable options for display panel support

Many Exynos devices have a display panel, most of them just have
a simple panel while others have more complex configurations that
requires an embedded DisplayPort (eDP) to LVDS display bridge.

This patch enables the following features to support both setups:

- Direct Rendering Manager (DRM)
- DRM bridge registration and lookup framework
- Parade ps8622/ps8625 eDP/LVDS bridge
- NXP ptn3460 eDP/LVDS bridge
- Exynos Fully Interactive Mobile Display controller (FIMD)
- Panel registration and lookup framework
- Simple panels
- Backlight and LCD device support

Signed-off-by: Javier Martinez Canillas <javier.martinez@...labora.co.uk>
---

Some of the options enabled here (e.g: the eDP/LVDS bridges)
are still not merged in mainline so this patch depends on
the following posted patches that were still not merged:

"drm/bridge: Modify drm_bridge core to support driver model" [0]
"drm/bridge: Add i2c based driver for ptn3460 bridge" [1]
"drm/bridge: Add i2c based driver for ps8622/ps8625 bridge" [2]

But I wanted to post anyways to make easier for others to
figure out what are the needed options to have the display
working on their Exynos machines.

In order to test the display panel on the Peach machines,
the following patches are also needed:

"ARM: dts: Add DT changes for display on peach_pit" [3]
"ARM: dts: Add DT changes for display on peach_pi" [4]

Best regards,
Javier

[0]: http://patchwork.ozlabs.org/patch/373792/
[1]: http://patchwork.ozlabs.org/patch/373793/
[2]: http://patchwork.ozlabs.org/patch/373794/
[3]: http://www.spinics.net/lists/arm-kernel/msg350568.html
[4]: http://www.spinics.net/lists/arm-kernel/msg350569.html 

 arch/arm/configs/exynos_defconfig | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig
index 676c744..f69d57e 100644
--- a/arch/arm/configs/exynos_defconfig
+++ b/arch/arm/configs/exynos_defconfig
@@ -101,11 +101,25 @@ CONFIG_REGULATOR_S2MPA01=y
 CONFIG_REGULATOR_S2MPS11=y
 CONFIG_REGULATOR_S5M8767=y
 CONFIG_REGULATOR_TPS65090=y
+CONFIG_DRM=y
+CONFIG_DRM_BRIDGE=y
+CONFIG_DRM_PS8622=y
+CONFIG_DRM_EXYNOS=y
+CONFIG_DRM_EXYNOS_FIMD=y
+CONFIG_DRM_EXYNOS_DP=y
+CONFIG_DRM_PANEL=y
+CONFIG_DRM_PANEL_SIMPLE=y
 CONFIG_FB=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_SIMPLE=y
 CONFIG_EXYNOS_VIDEO=y
 CONFIG_EXYNOS_MIPI_DSI=y
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+CONFIG_LCD_CLASS_DEVICE=y
+CONFIG_LCD_PLATFORM=y
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
+CONFIG_BACKLIGHT_GENERIC=y
+CONFIG_BACKLIGHT_PWM=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_FONTS=y
 CONFIG_FONT_7x14=y
-- 
2.0.1

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