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.st...@ew.tq-group.com>
Signed-off-by: Marek Vasut <ma...@denx.de>
Cc: Alexander Stein <alexander.st...@ew.tq-group.com>
Cc: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Cc: Lucas Stach <l.st...@pengutronix.de>
Cc: Peng Fan <peng....@nxp.com>
Cc: Robby Cai <robby....@nxp.com>
Cc: Sam Ravnborg <s...@ravnborg.org>
Cc: Stefan Agner <ste...@agner.ch>
---
V2: Add AB from Alexander
---
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 b7c70d269d2cb..cd2a59e110c3a 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);
--
2.35.1
