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authorJernej Skrabec <jernej.skrabec@gmail.com>2021-09-15 20:58:36 +0300
committerMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2021-10-06 12:05:44 +0300
commitc64c8e04a12ed3e2238761e26cda78e72550dc98 (patch)
tree6d3eec1c4adcd4bfb44d61a05ed104591e904e6d /.cocciconfig
parent5e2e412d47f21c1682e701f946d4114f9885c23f (diff)
downloadlinux-c64c8e04a12ed3e2238761e26cda78e72550dc98.tar.xz
drm/sun4i: dw-hdmi: Fix HDMI PHY clock setup
Recent rework, which made HDMI PHY driver a platform device, inadvertely reversed clock setup order. HW is very touchy about it. Proper way is to handle controllers resets and clocks first and HDMI PHYs second. Currently, without this fix, first mode set completely fails (nothing on HDMI monitor) on H3 era PHYs. On H6, it still somehow work. Move HDMI PHY reset & clocks handling to sun8i_hdmi_phy_init() which will assure that code is executed after controllers reset & clocks are handled. Additionally, add sun8i_hdmi_phy_deinit() which will deinit them at controllers driver unload. Tested on A64, H3, H6 and R40. Fixes: 9bf3797796f5 ("drm/sun4i: dw-hdmi: Make HDMI PHY into a platform device") Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20210915175836.3158839-1-jernej.skrabec@gmail.com Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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