Hi,
On Wed, Jun 06, 2018 at 12:36:48PM +0300, Laurent Pinchart wrote:
> The CRTC mode set implementation needs to access the omap_dss_device for
> the pipeline display. To do so, it iterates over all pipelines to find
> the one that contains an encoder corresponding to the CRTC, and request
> the display device from the encoder. That's a very complicated dance
> when the CRTC has a direct pipeline pointer already, and the pipeline
> contains a pointer to the display device.
>
> Replace the convoluted code with direct access.
>
> Signed-off-by: Laurent Pinchart
> ---
Reviewed-by: Sebastian Reichel
-- Sebastian
> drivers/gpu/drm/omapdrm/omap_crtc.c| 25 -
> drivers/gpu/drm/omapdrm/omap_encoder.c | 7 ---
> drivers/gpu/drm/omapdrm/omap_encoder.h | 3 ---
> 3 files changed, 4 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c
> b/drivers/gpu/drm/omapdrm/omap_crtc.c
> index 197d05312306..6e7a777907f5 100644
> --- a/drivers/gpu/drm/omapdrm/omap_crtc.c
> +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
> @@ -419,12 +419,12 @@ static enum drm_mode_status omap_crtc_mode_valid(struct
> drm_crtc *crtc,
> static void omap_crtc_mode_set_nofb(struct drm_crtc *crtc)
> {
> struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
> + struct omap_dss_device *display = omap_crtc->pipe->display;
> struct drm_display_mode *mode = >state->adjusted_mode;
> - struct omap_drm_private *priv = crtc->dev->dev_private;
> const u32 flags_mask = DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_DE_LOW |
> DISPLAY_FLAGS_PIXDATA_POSEDGE | DISPLAY_FLAGS_PIXDATA_NEGEDGE |
> DISPLAY_FLAGS_SYNC_POSEDGE | DISPLAY_FLAGS_SYNC_NEGEDGE;
> - unsigned int i;
> + struct videomode vm = {0};
>
> 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,
> @@ -447,25 +447,8 @@ static void omap_crtc_mode_set_nofb(struct drm_crtc
> *crtc)
>* has been changed to the DRM model.
>*/
>
> - for (i = 0; i < priv->num_pipes; ++i) {
> - struct drm_encoder *encoder = priv->pipes[i].encoder;
> -
> - if (encoder->crtc == crtc) {
> - struct omap_dss_device *dssdev;
> -
> - dssdev = omap_encoder_get_dssdev(encoder);
> -
> - if (dssdev) {
> - struct videomode vm = {0};
> -
> - dssdev->ops->get_timings(dssdev, );
> -
> - omap_crtc->vm.flags |= vm.flags & flags_mask;
> - }
> -
> - break;
> - }
> - }
> + display->ops->get_timings(display, );
> + omap_crtc->vm.flags |= vm.flags & flags_mask;
> }
>
> 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 7bbf3700e393..87e2b3799a45 100644
> --- a/drivers/gpu/drm/omapdrm/omap_encoder.c
> +++ b/drivers/gpu/drm/omapdrm/omap_encoder.c
> @@ -39,13 +39,6 @@ struct omap_encoder {
> struct omap_dss_device *dssdev;
> };
>
> -struct omap_dss_device *omap_encoder_get_dssdev(struct drm_encoder *encoder)
> -{
> - struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
> -
> - return omap_encoder->dssdev;
> -}
> -
> static void omap_encoder_destroy(struct drm_encoder *encoder)
> {
> struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
> diff --git a/drivers/gpu/drm/omapdrm/omap_encoder.h
> b/drivers/gpu/drm/omapdrm/omap_encoder.h
> index d2f308bec494..e8f1a35dce2f 100644
> --- a/drivers/gpu/drm/omapdrm/omap_encoder.h
> +++ b/drivers/gpu/drm/omapdrm/omap_encoder.h
> @@ -27,7 +27,4 @@ struct omap_dss_device;
> struct drm_encoder *omap_encoder_init(struct drm_device *dev,
> struct omap_dss_device *dssdev);
>
> -/* map crtc to vblank mask */
> -struct omap_dss_device *omap_encoder_get_dssdev(struct drm_encoder *encoder);
> -
> #endif /* __OMAPDRM_ENCODER_H__ */
> --
> Regards,
>
> Laurent Pinchart
>
> ___
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> dri-devel@lists.freedesktop.org
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