The bus flags stored in omap_dss_device instances are used to fixup the
video mode before setting it, to honour constraints that can't be
expressed through drm_display_mode. The fixup occurs in the CRTC mode
set operation and the resulting video mode is stored internally in the
CRTC. It is then used next by omap_encoder_enable() to apply mode fixups
for the omap_dss_device instances in omap_encoder_update().
Move the hack to the omap_encoder_update() function right before
applying the omap_dss_device fixups, in order to group all fixups
together.
Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reic...@collabora.co.uk>
---
drivers/gpu/drm/omapdrm/omap_crtc.c | 42 +----------------------------
drivers/gpu/drm/omapdrm/omap_encoder.c | 48 +++++++++++++++++++++++++++++-----
2 files changed, 43 insertions(+), 47 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c
b/drivers/gpu/drm/omapdrm/omap_crtc.c
index 39693dfe54af..62928ec0e7db 100644
--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
+++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
@@ -420,8 +420,6 @@ static void omap_crtc_mode_set_nofb(struct drm_crtc *crtc)
{
struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
struct drm_display_mode *mode = &crtc->state->adjusted_mode;
- struct videomode *vm = &omap_crtc->vm;
- struct omap_dss_device *dssdev;
DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
omap_crtc->name, mode->base.id, mode->name,
@@ -430,45 +428,7 @@ static void omap_crtc_mode_set_nofb(struct drm_crtc *crtc)
mode->vdisplay, mode->vsync_start, mode->vsync_end, mode->vtotal,
mode->type, mode->flags);
- drm_display_mode_to_videomode(mode, vm);
-
- /*
- * HACK: This fixes the vm flags.
- * struct drm_display_mode does not contain the VSYNC/HSYNC/DE flags
- * and they get lost when converting back and forth between
- * struct drm_display_mode and struct videomode. The hack below
- * goes and fetches the missing flags from the panel drivers.
- *
- * A better solution is to use DRM's bus-flags through the whole driver.
- */
-
- for (dssdev = omap_crtc->pipe->output; dssdev; dssdev = dssdev->next) {
- unsigned long bus_flags = dssdev->bus_flags;
-
- if (!(vm->flags & (DISPLAY_FLAGS_DE_LOW |
- DISPLAY_FLAGS_DE_HIGH))) {
- if (bus_flags & DRM_BUS_FLAG_DE_LOW)
- vm->flags |= DISPLAY_FLAGS_DE_LOW;
- else if (bus_flags & DRM_BUS_FLAG_DE_HIGH)
- vm->flags |= DISPLAY_FLAGS_DE_HIGH;
- }
-
- if (!(vm->flags & (DISPLAY_FLAGS_PIXDATA_POSEDGE |
- DISPLAY_FLAGS_PIXDATA_NEGEDGE))) {
- if (bus_flags & DRM_BUS_FLAG_PIXDATA_POSEDGE)
- vm->flags |= DISPLAY_FLAGS_PIXDATA_POSEDGE;
- else if (bus_flags & DRM_BUS_FLAG_PIXDATA_NEGEDGE)
- vm->flags |= DISPLAY_FLAGS_PIXDATA_NEGEDGE;
- }
-
- if (!(vm->flags & (DISPLAY_FLAGS_SYNC_POSEDGE |
- DISPLAY_FLAGS_SYNC_NEGEDGE))) {
- if (bus_flags & DRM_BUS_FLAG_SYNC_POSEDGE)
- vm->flags |= DISPLAY_FLAGS_SYNC_POSEDGE;
- else if (bus_flags & DRM_BUS_FLAG_SYNC_NEGEDGE)
- vm->flags |= DISPLAY_FLAGS_SYNC_NEGEDGE;
- }
- }
+ drm_display_mode_to_videomode(mode, &omap_crtc->vm);
}
static int omap_crtc_atomic_check(struct drm_crtc *crtc,
diff --git a/drivers/gpu/drm/omapdrm/omap_encoder.c
b/drivers/gpu/drm/omapdrm/omap_encoder.c
index bb010c20d8b8..82cdcba961a8 100644
--- a/drivers/gpu/drm/omapdrm/omap_encoder.c
+++ b/drivers/gpu/drm/omapdrm/omap_encoder.c
@@ -103,13 +103,49 @@ static int omap_encoder_update(struct drm_encoder
*encoder,
int ret;
for (dssdev = omap_encoder->output; dssdev; dssdev = dssdev->next) {
- if (!dssdev->ops->check_timings)
- continue;
+ unsigned long bus_flags = dssdev->bus_flags;
+
+ if (dssdev->ops->check_timings) {
+ ret = dssdev->ops->check_timings(dssdev, vm);
+ if (ret) {
+ dev_err(dev->dev, "invalid timings: %d\n", ret);
+ return ret;
+ }
+ }
+
+ /*
+ * HACK: This fixes the vm flags.
+ * struct drm_display_mode does not contain the VSYNC/HSYNC/DE
+ * flags and they get lost when converting back and forth
+ * between struct drm_display_mode and struct videomode. The
+ * hack below goes and fetches the missing flags.
+ *
+ * A better solution is to use DRM's bus-flags through the whole
+ * driver.
+ */
+
+ if (!(vm->flags & (DISPLAY_FLAGS_DE_LOW |
+ DISPLAY_FLAGS_DE_HIGH))) {
+ if (bus_flags & DRM_BUS_FLAG_DE_LOW)
+ vm->flags |= DISPLAY_FLAGS_DE_LOW;
+ else if (bus_flags & DRM_BUS_FLAG_DE_HIGH)
+ vm->flags |= DISPLAY_FLAGS_DE_HIGH;
+ }
+
+ if (!(vm->flags & (DISPLAY_FLAGS_PIXDATA_POSEDGE |
+ DISPLAY_FLAGS_PIXDATA_NEGEDGE))) {
+ if (bus_flags & DRM_BUS_FLAG_PIXDATA_POSEDGE)
+ vm->flags |= DISPLAY_FLAGS_PIXDATA_POSEDGE;
+ else if (bus_flags & DRM_BUS_FLAG_PIXDATA_NEGEDGE)
+ vm->flags |= DISPLAY_FLAGS_PIXDATA_NEGEDGE;
+ }
- ret = dssdev->ops->check_timings(dssdev, vm);
- if (ret) {
- dev_err(dev->dev, "invalid timings: %d\n", ret);
- return ret;
+ if (!(vm->flags & (DISPLAY_FLAGS_SYNC_POSEDGE |
+ DISPLAY_FLAGS_SYNC_NEGEDGE))) {
+ if (bus_flags & DRM_BUS_FLAG_SYNC_POSEDGE)
+ vm->flags |= DISPLAY_FLAGS_SYNC_POSEDGE;
+ else if (bus_flags & DRM_BUS_FLAG_SYNC_NEGEDGE)
+ vm->flags |= DISPLAY_FLAGS_SYNC_NEGEDGE;
}
}
--
Regards,
Laurent Pinchart
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