In case the MXSFB is connected to a bridge, attempt to obtain bus flags from that bridge state too. The bus flags may specify e.g. the DE signal polarity.
Signed-off-by: Marek Vasut <[email protected]> Cc: Alexander Stein <[email protected]> Cc: Laurent Pinchart <[email protected]> Cc: Lucas Stach <[email protected]> Cc: Peng Fan <[email protected]> Cc: Robby Cai <[email protected]> Cc: Sam Ravnborg <[email protected]> Cc: Stefan Agner <[email protected]> --- drivers/gpu/drm/mxsfb/mxsfb_kms.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/mxsfb/mxsfb_kms.c b/drivers/gpu/drm/mxsfb/mxsfb_kms.c index 4baa3db1f3d10..c7f14ef1edc25 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c @@ -298,6 +298,7 @@ static int mxsfb_reset_block(struct mxsfb_drm_private *mxsfb) } static void mxsfb_crtc_mode_set_nofb(struct mxsfb_drm_private *mxsfb, + struct drm_bridge_state *bridge_state, const u32 bus_format) { struct drm_device *drm = mxsfb->crtc.dev; @@ -307,6 +308,8 @@ static void mxsfb_crtc_mode_set_nofb(struct mxsfb_drm_private *mxsfb, if (mxsfb->bridge && mxsfb->bridge->timings) bus_flags = mxsfb->bridge->timings->input_bus_flags; + else if (bridge_state) + bus_flags = bridge_state->input_bus_cfg.flags; DRM_DEV_DEBUG_DRIVER(drm->dev, "Pixel clock: %dkHz (actual: %dkHz)\n", m->crtc_clock, @@ -365,7 +368,7 @@ static void mxsfb_crtc_atomic_enable(struct drm_crtc *crtc, { struct mxsfb_drm_private *mxsfb = to_mxsfb_drm_private(crtc->dev); struct drm_display_mode *m = &mxsfb->crtc.state->adjusted_mode; - struct drm_bridge_state *bridge_state; + struct drm_bridge_state *bridge_state = NULL; struct drm_device *drm = mxsfb->drm; u32 bus_format = 0; @@ -399,7 +402,7 @@ static void mxsfb_crtc_atomic_enable(struct drm_crtc *crtc, pm_runtime_get_sync(drm->dev); - mxsfb_crtc_mode_set_nofb(mxsfb, bus_format); + mxsfb_crtc_mode_set_nofb(mxsfb, bridge_state, bus_format); /* Write cur_buf as well to avoid an initial corrupt frame */ mxsfb_update_buffer(mxsfb, crtc->primary, true); -- 2.35.1
