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authorFabio Estevam <fabio.estevam@nxp.com>2017-05-05 20:01:41 +0200
committerSean Paul <seanpaul@chromium.org>2017-06-15 19:30:45 +0200
commitae9d04214372a521e3746556eb2f76007d9edb73 (patch)
tree070e12280b960c85b1c385bf24a5610aceb5a5c2 /Documentation/gpu
parentdrm: Remove duplicate forward declaration (diff)
downloadlinux-ae9d04214372a521e3746556eb2f76007d9edb73.tar.xz
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drm: mxsfb_crtc: Reset the eLCDIF controller
According to the eLCDIF initialization steps listed in the MX6SX Reference Manual the eLCDIF block reset is mandatory. Without performing the eLCDIF reset the display shows garbage content when the kernel boots. In earlier tests this issue has not been observed because the bootloader was previously showing a splash screen and the bootloader display driver does properly implement the eLCDIF reset. Add the eLCDIF reset to the driver, so that it can operate correctly independently of the bootloader. Tested on a imx6sx-sdb board. Cc: <stable@vger.kernel.org> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Marek Vasut <marex@denx.de> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/1494007301-14535-1-git-send-email-fabio.estevam@nxp.com
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