diff options
| author | Marek Vasut <marex@denx.de> | 2022-04-17 05:10:11 +0300 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2022-04-26 01:03:21 +0300 |
| commit | 57e6f0562cb40d54dbe030f94c6307665b69a594 (patch) | |
| tree | 40a67a49ce21df3759e9eaf3202674dc9a597d71 /drivers/gpu/drm/mxsfb | |
| parent | 3604f1e5319bb1a284cc8d600d89dc0cc3bc8ed8 (diff) | |
| download | linux-57e6f0562cb40d54dbe030f94c6307665b69a594.tar.xz | |
drm: mxsfb: Obtain bus flags from bridge state
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.
Acked-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alexander Stein <alexander.stein@ew.tq-group.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Robby Cai <robby.cai@nxp.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Stefan Agner <stefan@agner.ch>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220417021011.337066-1-marex@denx.de
Diffstat (limited to 'drivers/gpu/drm/mxsfb')
| -rw-r--r-- | drivers/gpu/drm/mxsfb/mxsfb_kms.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/mxsfb/mxsfb_kms.c b/drivers/gpu/drm/mxsfb/mxsfb_kms.c index b7c70d269d2c..cd2a59e110c3 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_kms.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_kms.c @@ -275,6 +275,7 @@ 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; @@ -284,6 +285,8 @@ 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, @@ -345,7 +348,7 @@ static void mxsfb_crtc_atomic_enable(struct drm_crtc *crtc, struct mxsfb_drm_private *mxsfb = to_mxsfb_drm_private(crtc->dev); struct drm_plane_state *new_pstate = drm_atomic_get_new_plane_state(state, crtc->primary); - struct drm_bridge_state *bridge_state; + struct drm_bridge_state *bridge_state = NULL; struct drm_device *drm = mxsfb->drm; u32 bus_format = 0; dma_addr_t paddr; @@ -381,7 +384,7 @@ static void mxsfb_crtc_atomic_enable(struct drm_crtc *crtc, if (!bus_format) bus_format = MEDIA_BUS_FMT_RGB888_1X24; - 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 */ paddr = drm_fb_cma_get_gem_addr(new_pstate->fb, new_pstate, 0); |