Laurent Pinchart
2024-Nov-17 23:32 UTC
[PATCH 1/5] drm/encoder_slave: make mode_valid accept const struct drm_display_mode
On Mon, Nov 18, 2024 at 01:22:12AM +0200, Dmitry Baryshkov wrote:> On Sun, 17 Nov 2024 at 22:54, Laurent Pinchart wrote: > > On Fri, Nov 15, 2024 at 11:09:26PM +0200, Dmitry Baryshkov wrote: > > > The mode_valid() callbacks of drm_encoder, drm_crtc and drm_bridge > > > accept const struct drm_display_mode argument. Change the mode_valid > > > callback of drm_encoder_slave to also accept const argument. > > > > > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org> > > > > Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com> > > > > On a side note, there's only two I2C slave encoder drivers left... I > > wonder if we could so something about them. The ch7006 and sil164 > > drivers seem to be used by nouveau only, could they be moved to > > drivers/gpu/drm/nouveau/ ? We would move the whole drm_encoder_slave > > implementation there too, and leave it to die (or get taken out of limbo > > and fixed) with dispnv04. > > Or it might be better to switch to drm_bridge. Currently we also have > sil164 (sub)drivers in ast and i915 drivers. I don't know if there is > any common code to share or not. If there is some, it might be nice to > use common framework.That would require porting nouveau and i915 to drm_bridge. As much as I'd love to see that happening, I won't hold my breath.> > > --- > > > drivers/gpu/drm/i2c/ch7006_drv.c | 2 +- > > > drivers/gpu/drm/i2c/sil164_drv.c | 2 +- > > > drivers/gpu/drm/nouveau/dispnv04/tvnv17.c | 2 +- > > > include/drm/drm_encoder_slave.h | 2 +- > > > 4 files changed, 4 insertions(+), 4 deletions(-) > > > > > > diff --git a/drivers/gpu/drm/i2c/ch7006_drv.c b/drivers/gpu/drm/i2c/ch7006_drv.c > > > index 131512a5f3bd996ad1e2eb869ffa09837daba0c7..a57f0a41c1a9e2006142fe0bad2914b0c344c82a 100644 > > > --- a/drivers/gpu/drm/i2c/ch7006_drv.c > > > +++ b/drivers/gpu/drm/i2c/ch7006_drv.c > > > @@ -104,7 +104,7 @@ static bool ch7006_encoder_mode_fixup(struct drm_encoder *encoder, > > > } > > > > > > static int ch7006_encoder_mode_valid(struct drm_encoder *encoder, > > > - struct drm_display_mode *mode) > > > + const struct drm_display_mode *mode) > > > { > > > if (ch7006_lookup_mode(encoder, mode)) > > > return MODE_OK; > > > diff --git a/drivers/gpu/drm/i2c/sil164_drv.c b/drivers/gpu/drm/i2c/sil164_drv.c > > > index ff23422727fce290a188e495d343e32bc2c373ec..708e119072fcb50c31b5596b75dc341429b93697 100644 > > > --- a/drivers/gpu/drm/i2c/sil164_drv.c > > > +++ b/drivers/gpu/drm/i2c/sil164_drv.c > > > @@ -255,7 +255,7 @@ sil164_encoder_restore(struct drm_encoder *encoder) > > > > > > static int > > > sil164_encoder_mode_valid(struct drm_encoder *encoder, > > > - struct drm_display_mode *mode) > > > + const struct drm_display_mode *mode) > > > { > > > struct sil164_priv *priv = to_sil164_priv(encoder); > > > > > > diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c > > > index 3ecb101d23e949b753b873d24eec01ad6fe7f5d6..35ad4e10d27323c87704a3ff35b7dc26462c82bd 100644 > > > --- a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c > > > +++ b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c > > > @@ -308,7 +308,7 @@ static int nv17_tv_get_modes(struct drm_encoder *encoder, > > > } > > > > > > static int nv17_tv_mode_valid(struct drm_encoder *encoder, > > > - struct drm_display_mode *mode) > > > + const struct drm_display_mode *mode) > > > { > > > struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder); > > > > > > diff --git a/include/drm/drm_encoder_slave.h b/include/drm/drm_encoder_slave.h > > > index 49172166a164474f43e4afb2eeeb3cde8ae7c61a..b526643833dcf78bae29f9fbbe27de3f730b55d8 100644 > > > --- a/include/drm/drm_encoder_slave.h > > > +++ b/include/drm/drm_encoder_slave.h > > > @@ -85,7 +85,7 @@ struct drm_encoder_slave_funcs { > > > * @mode_valid: Analogous to &drm_encoder_helper_funcs @mode_valid. > > > */ > > > int (*mode_valid)(struct drm_encoder *encoder, > > > - struct drm_display_mode *mode); > > > + const struct drm_display_mode *mode); > > > /** > > > * @mode_set: Analogous to &drm_encoder_helper_funcs @mode_set > > > * callback. Wrapped by drm_i2c_encoder_mode_set(). > > >-- Regards, Laurent Pinchart
Dmitry Baryshkov
2024-Nov-17 23:55 UTC
[PATCH 1/5] drm/encoder_slave: make mode_valid accept const struct drm_display_mode
On Mon, 18 Nov 2024 at 01:33, Laurent Pinchart <laurent.pinchart at ideasonboard.com> wrote:> > On Mon, Nov 18, 2024 at 01:22:12AM +0200, Dmitry Baryshkov wrote: > > On Sun, 17 Nov 2024 at 22:54, Laurent Pinchart wrote: > > > On Fri, Nov 15, 2024 at 11:09:26PM +0200, Dmitry Baryshkov wrote: > > > > The mode_valid() callbacks of drm_encoder, drm_crtc and drm_bridge > > > > accept const struct drm_display_mode argument. Change the mode_valid > > > > callback of drm_encoder_slave to also accept const argument. > > > > > > > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org> > > > > > > Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com> > > > > > > On a side note, there's only two I2C slave encoder drivers left... I > > > wonder if we could so something about them. The ch7006 and sil164 > > > drivers seem to be used by nouveau only, could they be moved to > > > drivers/gpu/drm/nouveau/ ? We would move the whole drm_encoder_slave > > > implementation there too, and leave it to die (or get taken out of limbo > > > and fixed) with dispnv04. > > > > Or it might be better to switch to drm_bridge. Currently we also have > > sil164 (sub)drivers in ast and i915 drivers. I don't know if there is > > any common code to share or not. If there is some, it might be nice to > > use common framework. > > That would require porting nouveau and i915 to drm_bridge. As much as > I'd love to see that happening, I won't hold my breath.Me neither. Probably moving those two and drm_encoder_slave to nouveau is really the best course for now.> > > > > --- > > > > drivers/gpu/drm/i2c/ch7006_drv.c | 2 +- > > > > drivers/gpu/drm/i2c/sil164_drv.c | 2 +- > > > > drivers/gpu/drm/nouveau/dispnv04/tvnv17.c | 2 +- > > > > include/drm/drm_encoder_slave.h | 2 +- > > > > 4 files changed, 4 insertions(+), 4 deletions(-) > > > > > > > > diff --git a/drivers/gpu/drm/i2c/ch7006_drv.c b/drivers/gpu/drm/i2c/ch7006_drv.c > > > > index 131512a5f3bd996ad1e2eb869ffa09837daba0c7..a57f0a41c1a9e2006142fe0bad2914b0c344c82a 100644 > > > > --- a/drivers/gpu/drm/i2c/ch7006_drv.c > > > > +++ b/drivers/gpu/drm/i2c/ch7006_drv.c > > > > @@ -104,7 +104,7 @@ static bool ch7006_encoder_mode_fixup(struct drm_encoder *encoder, > > > > } > > > > > > > > static int ch7006_encoder_mode_valid(struct drm_encoder *encoder, > > > > - struct drm_display_mode *mode) > > > > + const struct drm_display_mode *mode) > > > > { > > > > if (ch7006_lookup_mode(encoder, mode)) > > > > return MODE_OK; > > > > diff --git a/drivers/gpu/drm/i2c/sil164_drv.c b/drivers/gpu/drm/i2c/sil164_drv.c > > > > index ff23422727fce290a188e495d343e32bc2c373ec..708e119072fcb50c31b5596b75dc341429b93697 100644 > > > > --- a/drivers/gpu/drm/i2c/sil164_drv.c > > > > +++ b/drivers/gpu/drm/i2c/sil164_drv.c > > > > @@ -255,7 +255,7 @@ sil164_encoder_restore(struct drm_encoder *encoder) > > > > > > > > static int > > > > sil164_encoder_mode_valid(struct drm_encoder *encoder, > > > > - struct drm_display_mode *mode) > > > > + const struct drm_display_mode *mode) > > > > { > > > > struct sil164_priv *priv = to_sil164_priv(encoder); > > > > > > > > diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c > > > > index 3ecb101d23e949b753b873d24eec01ad6fe7f5d6..35ad4e10d27323c87704a3ff35b7dc26462c82bd 100644 > > > > --- a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c > > > > +++ b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c > > > > @@ -308,7 +308,7 @@ static int nv17_tv_get_modes(struct drm_encoder *encoder, > > > > } > > > > > > > > static int nv17_tv_mode_valid(struct drm_encoder *encoder, > > > > - struct drm_display_mode *mode) > > > > + const struct drm_display_mode *mode) > > > > { > > > > struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder); > > > > > > > > diff --git a/include/drm/drm_encoder_slave.h b/include/drm/drm_encoder_slave.h > > > > index 49172166a164474f43e4afb2eeeb3cde8ae7c61a..b526643833dcf78bae29f9fbbe27de3f730b55d8 100644 > > > > --- a/include/drm/drm_encoder_slave.h > > > > +++ b/include/drm/drm_encoder_slave.h > > > > @@ -85,7 +85,7 @@ struct drm_encoder_slave_funcs { > > > > * @mode_valid: Analogous to &drm_encoder_helper_funcs @mode_valid. > > > > */ > > > > int (*mode_valid)(struct drm_encoder *encoder, > > > > - struct drm_display_mode *mode); > > > > + const struct drm_display_mode *mode); > > > > /** > > > > * @mode_set: Analogous to &drm_encoder_helper_funcs @mode_set > > > > * callback. Wrapped by drm_i2c_encoder_mode_set(). > > > > > > -- > Regards, > > Laurent Pinchart-- With best wishes Dmitry