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Subject[PATCH v2 02/15] drm/mxsfb: Read bus flags from bridge if present
Date
From: Guido Günther <agx@sigxcpu.org>

The bridge might have special requirmentes on the input bus. This
is e.g. used by the imx-nwl bridge.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Reviewed-by: Stefan Agner <stefan@agner.ch>
---
drivers/gpu/drm/mxsfb/mxsfb_crtc.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mxsfb/mxsfb_crtc.c b/drivers/gpu/drm/mxsfb/mxsfb_crtc.c
index de09b93..b69ace8 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_crtc.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_crtc.c
@@ -209,7 +209,7 @@ static void mxsfb_crtc_mode_set_nofb(struct mxsfb_drm_private *mxsfb)
{
struct drm_device *drm = mxsfb->pipe.crtc.dev;
struct drm_display_mode *m = &mxsfb->pipe.crtc.state->adjusted_mode;
- const u32 bus_flags = mxsfb->connector->display_info.bus_flags;
+ u32 bus_flags = mxsfb->connector->display_info.bus_flags;
u32 vdctrl0, vsync_pulse_len, hsync_pulse_len;
int err;

@@ -233,6 +233,9 @@ static void mxsfb_crtc_mode_set_nofb(struct mxsfb_drm_private *mxsfb)

clk_set_rate(mxsfb->clk, m->crtc_clock * 1000);

+ if (mxsfb->bridge && mxsfb->bridge->timings)
+ bus_flags = mxsfb->bridge->timings->input_bus_flags;
+
DRM_DEV_DEBUG_DRIVER(drm->dev, "Pixel clock: %dkHz (actual: %dkHz)\n",
m->crtc_clock,
(int)(clk_get_rate(mxsfb->clk) / 1000));
--
2.7.4
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