From 527e4ca3b6d13c62340d7a8e2ac3d24800f72f4b Mon Sep 17 00:00:00 2001 From: Douglas Anderson <dianders@chromium.org> Date: Fri, 14 Jun 2019 15:47:30 -0700 Subject: [PATCH] drm/rockchip: Base adjustments of the mode based on prev adjustments In vop_crtc_mode_fixup() we fixup the mode to show what we actually will be able to achieve. However we should base our adjustments on any previous adjustments that were made. As an example, the dw_hdmi driver may wish to make some small adjustments to clock rates in its atomic_check() function. If it does, it will update the adjusted_mode. We shouldn't throw away those adjustments. NOTE: the version of the dw_hdmi driver upstream doesn't _actually_ make such adjustments, but downstream in Chrome OS it does. It is plausible that one day we'll figure out how to cleanly make that happen in an upstream-friendly way, so we should prepare by using the right mode. Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20190614224730.98622-2-dianders@chromium.org --- drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 771bf5d53cf04..2a5e2c67b02a2 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -1013,8 +1013,8 @@ static bool vop_crtc_mode_fixup(struct drm_crtc *crtc, struct vop *vop = to_vop(crtc); adjusted_mode->clock = - DIV_ROUND_UP(clk_round_rate(vop->dclk, mode->clock * 1000), - 1000); + DIV_ROUND_UP(clk_round_rate(vop->dclk, + adjusted_mode->clock * 1000), 1000); return true; } -- 2.30.2