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[PATCH] ARM: exynos_defconfig: Disable simplefb support

From Javier Martinez Canillas <javier@osg.samsung.com>
Newsgroups linux.kernel
Subject [PATCH] ARM: exynos_defconfig: Disable simplefb support
Date 2015-09-10 15:50 +0200
Message-ID <q7aoF-31n-3@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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The simplefb driver allows the kernel to render on a pre-allocated
buffer that's been initialized by firmware before the kernel boots.

This option was enabled to have display working on the Exynos5250
Snow Chromebook by commit da9d0fbf5e9a ("ARM: exynos: defconfig
update") since proper DRM/KMS support did not exist at that time.

But now that the Exynos DRM driver has support for this hardware,
there is no need to have simplefb enabled. In fact, if a user has
a u-boot that injects the simplefb dev node to the FDT before pass
it to the kernel, display won't be properly initialized and only a
blank screen will be shown since there isn't a proper handoff from
the simplefb driver to the Exynos DRM driver.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>

---

 arch/arm/configs/exynos_defconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig
index 62f677f76a0b..20d878c83193 100644
--- a/arch/arm/configs/exynos_defconfig
+++ b/arch/arm/configs/exynos_defconfig
@@ -139,7 +139,6 @@ CONFIG_DRM_EXYNOS_DSI=y
 CONFIG_DRM_EXYNOS_HDMI=y
 CONFIG_DRM_PANEL_SIMPLE=y
 CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0=y
-CONFIG_FB_SIMPLE=y
 CONFIG_EXYNOS_VIDEO=y
 CONFIG_EXYNOS_MIPI_DSI=y
 CONFIG_LCD_CLASS_DEVICE=y
-- 
2.4.3

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Thread

[PATCH] ARM: exynos_defconfig: Disable simplefb support Javier Martinez Canillas <javier@osg.samsung.com> - 2015-09-10 15:50 +0200
  Re: [PATCH] ARM: exynos_defconfig: Disable simplefb support Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-11 07:10 +0200
    Re: [PATCH] ARM: exynos_defconfig: Disable simplefb support Javier Martinez Canillas <javier@osg.samsung.com> - 2015-09-11 09:10 +0200
      Re: [PATCH] ARM: exynos_defconfig: Disable simplefb support Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-11 09:20 +0200
        Re: [PATCH] ARM: exynos_defconfig: Disable simplefb support Javier Martinez Canillas <javier@osg.samsung.com> - 2015-09-11 09:50 +0200
  Re: [PATCH] ARM: exynos_defconfig: Disable simplefb support Michael Turquette <mturquette@baylibre.com> - 2015-09-11 17:30 +0200

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