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/openbmc/linux/drivers/gpu/drm/mcde/ |
H A D | mcde_dsi.c | 6ddfb00d Wed Nov 06 10:58:32 CST 2019 Stephan Gerhold <stephan@gerhold.net> drm/mcde: dsi: Delay start of video stream generator
The initialization order for DSI video mode is important - if we enable the video stream generator (VSG) before the MCDE DSI formatter starts sending pixel data, it will immediately run into an error and disable itself again.
Avoid this problem by delaying the activation of the VSG until the MCDE DSI formatter is properly set up and running (i.e. when mcde_dsi_bridge_enable() is called).
Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Tested-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191106165835.2863-5-stephan@gerhold.net 6ddfb00d Wed Nov 06 10:58:32 CST 2019 Stephan Gerhold <stephan@gerhold.net> drm/mcde: dsi: Delay start of video stream generator The initialization order for DSI video mode is important - if we enable the video stream generator (VSG) before the MCDE DSI formatter starts sending pixel data, it will immediately run into an error and disable itself again. Avoid this problem by delaying the activation of the VSG until the MCDE DSI formatter is properly set up and running (i.e. when mcde_dsi_bridge_enable() is called). Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Tested-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191106165835.2863-5-stephan@gerhold.net
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