[PATCH 0/2] Small cleanups to ingenic-drm driver

[PATCH 0/2] Small cleanups to ingenic-drm driver

[Paul Cercueil]

Here are a few cleanups to the ingenic-drm driver.
- some error paths were missing and have been added;
- the mode validation has been moved to the .mode_valid helper callback.

Cheers,
-Paul

Paul Cercueil (2):
  drm/ingenic: Handle errors of drm_atomic_get_plane_state
  drm/ingenic: Validate mode in a .mode_valid callback

 drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 41 +++++++++++++++--------
 1 file changed, 27 insertions(+), 14 deletions(-)

-- 
2.27.0

[PATCH 0/2] Small cleanups to ingenic-drm driver

[Paul Cercueil]

Here are a few cleanups to the ingenic-drm driver.
- some error paths were missing and have been added;
- the mode validation has been moved to the .mode_valid helper callback.

Cheers,
-Paul

Paul Cercueil (2):
  drm/ingenic: Handle errors of drm_atomic_get_plane_state
  drm/ingenic: Validate mode in a .mode_valid callback

 drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 41 +++++++++++++++--------
 1 file changed, 27 insertions(+), 14 deletions(-)

-- 
2.27.0

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[PATCH 1/2] drm/ingenic: Handle errors of drm_atomic_get_plane_state

[Paul Cercueil]

drm_atomic_get_plane_state() can return errors, so we need to handle
these.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
 drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index ada990a7f911..64eabab3ef69 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -215,10 +215,17 @@ static int ingenic_drm_crtc_atomic_check(struct drm_crtc *crtc,
 
 	if (priv->soc_info->has_osd) {
 		f1_state = drm_atomic_get_plane_state(state->state, &priv->f1);
+		if (IS_ERR(f1_state))
+			return PTR_ERR(f1_state);
+
 		f0_state = drm_atomic_get_plane_state(state->state, &priv->f0);
+		if (IS_ERR(f0_state))
+			return PTR_ERR(f0_state);
 
 		if (IS_ENABLED(CONFIG_DRM_INGENIC_IPU) && priv->ipu_plane) {
 			ipu_state = drm_atomic_get_plane_state(state->state, priv->ipu_plane);
+			if (IS_ERR(ipu_state))
+				return PTR_ERR(ipu_state);
 
 			/* IPU and F1 planes cannot be enabled at the same time. */
 			if (f1_state->fb && ipu_state->fb) {
-- 
2.27.0

[PATCH 1/2] drm/ingenic: Handle errors of drm_atomic_get_plane_state

[Paul Cercueil]

drm_atomic_get_plane_state() can return errors, so we need to handle
these.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
 drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index ada990a7f911..64eabab3ef69 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -215,10 +215,17 @@ static int ingenic_drm_crtc_atomic_check(struct drm_crtc *crtc,
 
 	if (priv->soc_info->has_osd) {
 		f1_state = drm_atomic_get_plane_state(state->state, &priv->f1);
+		if (IS_ERR(f1_state))
+			return PTR_ERR(f1_state);
+
 		f0_state = drm_atomic_get_plane_state(state->state, &priv->f0);
+		if (IS_ERR(f0_state))
+			return PTR_ERR(f0_state);
 
 		if (IS_ENABLED(CONFIG_DRM_INGENIC_IPU) && priv->ipu_plane) {
 			ipu_state = drm_atomic_get_plane_state(state->state, priv->ipu_plane);
+			if (IS_ERR(ipu_state))
+				return PTR_ERR(ipu_state);
 
 			/* IPU and F1 planes cannot be enabled at the same time. */
 			if (f1_state->fb && ipu_state->fb) {
-- 
2.27.0

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[PATCH 2/2] drm/ingenic: Validate mode in a .mode_valid callback

[Paul Cercueil]

Validate modes in the drm_crtc_helper_funcs.mode_valid() callback, which
is designed for this purpose, instead of doing it in
drm_crtc_helper_funcs.atomic_check().

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
 drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 34 +++++++++++++----------
 1 file changed, 20 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index 64eabab3ef69..5dab9c3d0a52 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -199,21 +199,8 @@ static int ingenic_drm_crtc_atomic_check(struct drm_crtc *crtc,
 {
 	struct ingenic_drm *priv = drm_crtc_get_priv(crtc);
 	struct drm_plane_state *f1_state, *f0_state, *ipu_state = NULL;
-	long rate;
-
-	if (!drm_atomic_crtc_needs_modeset(state))
-		return 0;
-
-	if (state->mode.hdisplay > priv->soc_info->max_width ||
-	    state->mode.vdisplay > priv->soc_info->max_height)
-		return -EINVAL;
 
-	rate = clk_round_rate(priv->pix_clk,
-			      state->adjusted_mode.clock * 1000);
-	if (rate < 0)
-		return rate;
-
-	if (priv->soc_info->has_osd) {
+	if (drm_atomic_crtc_needs_modeset(state) && priv->soc_info->has_osd) {
 		f1_state = drm_atomic_get_plane_state(state->state, &priv->f1);
 		if (IS_ERR(f1_state))
 			return PTR_ERR(f1_state);
@@ -242,6 +229,24 @@ static int ingenic_drm_crtc_atomic_check(struct drm_crtc *crtc,
 	return 0;
 }
 
+static enum drm_mode_status
+ingenic_drm_crtc_mode_valid(struct drm_crtc *crtc, const struct drm_display_mode *mode)
+{
+	struct ingenic_drm *priv = drm_crtc_get_priv(crtc);
+	long rate;
+
+	if (mode->hdisplay > priv->soc_info->max_width)
+		return MODE_BAD_HVALUE;
+	if (mode->vdisplay > priv->soc_info->max_height)
+		return MODE_BAD_VVALUE;
+
+	rate = clk_round_rate(priv->pix_clk, mode->clock * 1000);
+	if (rate < 0)
+		return MODE_CLOCK_RANGE;
+
+	return MODE_OK;
+}
+
 static void ingenic_drm_crtc_atomic_begin(struct drm_crtc *crtc,
 					  struct drm_crtc_state *oldstate)
 {
@@ -655,6 +660,7 @@ static const struct drm_crtc_helper_funcs ingenic_drm_crtc_helper_funcs = {
 	.atomic_begin		= ingenic_drm_crtc_atomic_begin,
 	.atomic_flush		= ingenic_drm_crtc_atomic_flush,
 	.atomic_check		= ingenic_drm_crtc_atomic_check,
+	.mode_valid		= ingenic_drm_crtc_mode_valid,
 };
 
 static const struct drm_encoder_helper_funcs ingenic_drm_encoder_helper_funcs = {
-- 
2.27.0

[PATCH 2/2] drm/ingenic: Validate mode in a .mode_valid callback

[Paul Cercueil]

Validate modes in the drm_crtc_helper_funcs.mode_valid() callback, which
is designed for this purpose, instead of doing it in
drm_crtc_helper_funcs.atomic_check().

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
 drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 34 +++++++++++++----------
 1 file changed, 20 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index 64eabab3ef69..5dab9c3d0a52 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -199,21 +199,8 @@ static int ingenic_drm_crtc_atomic_check(struct drm_crtc *crtc,
 {
 	struct ingenic_drm *priv = drm_crtc_get_priv(crtc);
 	struct drm_plane_state *f1_state, *f0_state, *ipu_state = NULL;
-	long rate;
-
-	if (!drm_atomic_crtc_needs_modeset(state))
-		return 0;
-
-	if (state->mode.hdisplay > priv->soc_info->max_width ||
-	    state->mode.vdisplay > priv->soc_info->max_height)
-		return -EINVAL;
 
-	rate = clk_round_rate(priv->pix_clk,
-			      state->adjusted_mode.clock * 1000);
-	if (rate < 0)
-		return rate;
-
-	if (priv->soc_info->has_osd) {
+	if (drm_atomic_crtc_needs_modeset(state) && priv->soc_info->has_osd) {
 		f1_state = drm_atomic_get_plane_state(state->state, &priv->f1);
 		if (IS_ERR(f1_state))
 			return PTR_ERR(f1_state);
@@ -242,6 +229,24 @@ static int ingenic_drm_crtc_atomic_check(struct drm_crtc *crtc,
 	return 0;
 }
 
+static enum drm_mode_status
+ingenic_drm_crtc_mode_valid(struct drm_crtc *crtc, const struct drm_display_mode *mode)
+{
+	struct ingenic_drm *priv = drm_crtc_get_priv(crtc);
+	long rate;
+
+	if (mode->hdisplay > priv->soc_info->max_width)
+		return MODE_BAD_HVALUE;
+	if (mode->vdisplay > priv->soc_info->max_height)
+		return MODE_BAD_VVALUE;
+
+	rate = clk_round_rate(priv->pix_clk, mode->clock * 1000);
+	if (rate < 0)
+		return MODE_CLOCK_RANGE;
+
+	return MODE_OK;
+}
+
 static void ingenic_drm_crtc_atomic_begin(struct drm_crtc *crtc,
 					  struct drm_crtc_state *oldstate)
 {
@@ -655,6 +660,7 @@ static const struct drm_crtc_helper_funcs ingenic_drm_crtc_helper_funcs = {
 	.atomic_begin		= ingenic_drm_crtc_atomic_begin,
 	.atomic_flush		= ingenic_drm_crtc_atomic_flush,
 	.atomic_check		= ingenic_drm_crtc_atomic_check,
+	.mode_valid		= ingenic_drm_crtc_mode_valid,
 };
 
 static const struct drm_encoder_helper_funcs ingenic_drm_encoder_helper_funcs = {
-- 
2.27.0

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Re: [PATCH 0/2] Small cleanups to ingenic-drm driver

[Sam Ravnborg]

Hi Paul.

On Tue, Jul 28, 2020 at 05:16:39PM +0200, Paul Cercueil wrote:
> Here are a few cleanups to the ingenic-drm driver.
> - some error paths were missing and have been added;
> - the mode validation has been moved to the .mode_valid helper callback.
> 
> Cheers,
> -Paul
> 
> Paul Cercueil (2):
>   drm/ingenic: Handle errors of drm_atomic_get_plane_state
>   drm/ingenic: Validate mode in a .mode_valid callback

Both looks fine, you can add my:
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>

I assume you will apply the patches.
Maybe wait for Daniel to take a look, he had some feedback on where
to add checks. I assume this is covered by the second patch.

	Sam

> 
>  drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 41 +++++++++++++++--------
>  1 file changed, 27 insertions(+), 14 deletions(-)
> 
> -- 
> 2.27.0
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH 0/2] Small cleanups to ingenic-drm driver

[Sam Ravnborg]

Hi Paul.

On Tue, Jul 28, 2020 at 05:16:39PM +0200, Paul Cercueil wrote:
> Here are a few cleanups to the ingenic-drm driver.
> - some error paths were missing and have been added;
> - the mode validation has been moved to the .mode_valid helper callback.
> 
> Cheers,
> -Paul
> 
> Paul Cercueil (2):
>   drm/ingenic: Handle errors of drm_atomic_get_plane_state
>   drm/ingenic: Validate mode in a .mode_valid callback

Both looks fine, you can add my:
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>

I assume you will apply the patches.
Maybe wait for Daniel to take a look, he had some feedback on where
to add checks. I assume this is covered by the second patch.

	Sam

> 
>  drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 41 +++++++++++++++--------
>  1 file changed, 27 insertions(+), 14 deletions(-)
> 
> -- 
> 2.27.0
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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Re: [PATCH 0/2] Small cleanups to ingenic-drm driver

[daniel]

On Tue, Jul 28, 2020 at 10:17:36PM +0200, Sam Ravnborg wrote:
> Hi Paul.
> 
> On Tue, Jul 28, 2020 at 05:16:39PM +0200, Paul Cercueil wrote:
> > Here are a few cleanups to the ingenic-drm driver.
> > - some error paths were missing and have been added;
> > - the mode validation has been moved to the .mode_valid helper callback.
> > 
> > Cheers,
> > -Paul
> > 
> > Paul Cercueil (2):
> >   drm/ingenic: Handle errors of drm_atomic_get_plane_state
> >   drm/ingenic: Validate mode in a .mode_valid callback
> 
> Both looks fine, you can add my:
> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
> 
> I assume you will apply the patches.
> Maybe wait for Daniel to take a look, he had some feedback on where
> to add checks. I assume this is covered by the second patch.

Yeah changelog for new versions would be great, but aside from that
bickering patch 2 lgtm now.

Cheers, Daniel

> 
> 	Sam
> 
> > 
> >  drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 41 +++++++++++++++--------
> >  1 file changed, 27 insertions(+), 14 deletions(-)
> > 
> > -- 
> > 2.27.0
> > 
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

Re: [PATCH 0/2] Small cleanups to ingenic-drm driver

[daniel]

On Tue, Jul 28, 2020 at 10:17:36PM +0200, Sam Ravnborg wrote:
> Hi Paul.
> 
> On Tue, Jul 28, 2020 at 05:16:39PM +0200, Paul Cercueil wrote:
> > Here are a few cleanups to the ingenic-drm driver.
> > - some error paths were missing and have been added;
> > - the mode validation has been moved to the .mode_valid helper callback.
> > 
> > Cheers,
> > -Paul
> > 
> > Paul Cercueil (2):
> >   drm/ingenic: Handle errors of drm_atomic_get_plane_state
> >   drm/ingenic: Validate mode in a .mode_valid callback
> 
> Both looks fine, you can add my:
> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
> 
> I assume you will apply the patches.
> Maybe wait for Daniel to take a look, he had some feedback on where
> to add checks. I assume this is covered by the second patch.

Yeah changelog for new versions would be great, but aside from that
bickering patch 2 lgtm now.

Cheers, Daniel

> 
> 	Sam
> 
> > 
> >  drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 41 +++++++++++++++--------
> >  1 file changed, 27 insertions(+), 14 deletions(-)
> > 
> > -- 
> > 2.27.0
> > 
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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Re: [PATCH 0/2] Small cleanups to ingenic-drm driver

[Paul Cercueil]

Le mer. 29 juil. 2020 à 0:00, daniel@ffwll.ch a écrit :
> On Tue, Jul 28, 2020 at 10:17:36PM +0200, Sam Ravnborg wrote:
>>  Hi Paul.
>> 
>>  On Tue, Jul 28, 2020 at 05:16:39PM +0200, Paul Cercueil wrote:
>>  > Here are a few cleanups to the ingenic-drm driver.
>>  > - some error paths were missing and have been added;
>>  > - the mode validation has been moved to the .mode_valid helper 
>> callback.
>>  >
>>  > Cheers,
>>  > -Paul
>>  >
>>  > Paul Cercueil (2):
>>  >   drm/ingenic: Handle errors of drm_atomic_get_plane_state
>>  >   drm/ingenic: Validate mode in a .mode_valid callback
>> 
>>  Both looks fine, you can add my:
>>  Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
>> 
>>  I assume you will apply the patches.
>>  Maybe wait for Daniel to take a look, he had some feedback on where
>>  to add checks. I assume this is covered by the second patch.
> 
> Yeah changelog for new versions would be great, but aside from that
> bickering patch 2 lgtm now.

This patchset is V1, I'm fixing issues you saw in the ingenic-drm 
driver when reviewing a different patchset.

Thanks for the review, I'll apply now.

-Paul
> 

Re: [PATCH 0/2] Small cleanups to ingenic-drm driver

[Paul Cercueil]

Le mer. 29 juil. 2020 à 0:00, daniel@ffwll.ch a écrit :
> On Tue, Jul 28, 2020 at 10:17:36PM +0200, Sam Ravnborg wrote:
>>  Hi Paul.
>> 
>>  On Tue, Jul 28, 2020 at 05:16:39PM +0200, Paul Cercueil wrote:
>>  > Here are a few cleanups to the ingenic-drm driver.
>>  > - some error paths were missing and have been added;
>>  > - the mode validation has been moved to the .mode_valid helper 
>> callback.
>>  >
>>  > Cheers,
>>  > -Paul
>>  >
>>  > Paul Cercueil (2):
>>  >   drm/ingenic: Handle errors of drm_atomic_get_plane_state
>>  >   drm/ingenic: Validate mode in a .mode_valid callback
>> 
>>  Both looks fine, you can add my:
>>  Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
>> 
>>  I assume you will apply the patches.
>>  Maybe wait for Daniel to take a look, he had some feedback on where
>>  to add checks. I assume this is covered by the second patch.
> 
> Yeah changelog for new versions would be great, but aside from that
> bickering patch 2 lgtm now.

This patchset is V1, I'm fixing issues you saw in the ingenic-drm 
driver when reviewing a different patchset.

Thanks for the review, I'll apply now.

-Paul
> 


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Re: [PATCH 0/2] Small cleanups to ingenic-drm driver

[daniel]

On Wed, Jul 29, 2020 at 02:28:01AM +0200, Paul Cercueil wrote:
> 
> 
> Le mer. 29 juil. 2020 à 0:00, daniel@ffwll.ch a écrit :
> > On Tue, Jul 28, 2020 at 10:17:36PM +0200, Sam Ravnborg wrote:
> > >  Hi Paul.
> > > 
> > >  On Tue, Jul 28, 2020 at 05:16:39PM +0200, Paul Cercueil wrote:
> > >  > Here are a few cleanups to the ingenic-drm driver.
> > >  > - some error paths were missing and have been added;
> > >  > - the mode validation has been moved to the .mode_valid helper
> > > callback.
> > >  >
> > >  > Cheers,
> > >  > -Paul
> > >  >
> > >  > Paul Cercueil (2):
> > >  >   drm/ingenic: Handle errors of drm_atomic_get_plane_state
> > >  >   drm/ingenic: Validate mode in a .mode_valid callback
> > > 
> > >  Both looks fine, you can add my:
> > >  Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
> > > 
> > >  I assume you will apply the patches.
> > >  Maybe wait for Daniel to take a look, he had some feedback on where
> > >  to add checks. I assume this is covered by the second patch.
> > 
> > Yeah changelog for new versions would be great, but aside from that
> > bickering patch 2 lgtm now.
> 
> This patchset is V1, I'm fixing issues you saw in the ingenic-drm driver
> when reviewing a different patchset.

Oh right that was pre-existing issue in which callback to use, apologies
for the confusion.
-Daniel

> 
> Thanks for the review, I'll apply now.
> 
> -Paul
> > 
> 
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

Re: [PATCH 0/2] Small cleanups to ingenic-drm driver

[daniel]

On Wed, Jul 29, 2020 at 02:28:01AM +0200, Paul Cercueil wrote:
> 
> 
> Le mer. 29 juil. 2020 à 0:00, daniel@ffwll.ch a écrit :
> > On Tue, Jul 28, 2020 at 10:17:36PM +0200, Sam Ravnborg wrote:
> > >  Hi Paul.
> > > 
> > >  On Tue, Jul 28, 2020 at 05:16:39PM +0200, Paul Cercueil wrote:
> > >  > Here are a few cleanups to the ingenic-drm driver.
> > >  > - some error paths were missing and have been added;
> > >  > - the mode validation has been moved to the .mode_valid helper
> > > callback.
> > >  >
> > >  > Cheers,
> > >  > -Paul
> > >  >
> > >  > Paul Cercueil (2):
> > >  >   drm/ingenic: Handle errors of drm_atomic_get_plane_state
> > >  >   drm/ingenic: Validate mode in a .mode_valid callback
> > > 
> > >  Both looks fine, you can add my:
> > >  Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
> > > 
> > >  I assume you will apply the patches.
> > >  Maybe wait for Daniel to take a look, he had some feedback on where
> > >  to add checks. I assume this is covered by the second patch.
> > 
> > Yeah changelog for new versions would be great, but aside from that
> > bickering patch 2 lgtm now.
> 
> This patchset is V1, I'm fixing issues you saw in the ingenic-drm driver
> when reviewing a different patchset.

Oh right that was pre-existing issue in which callback to use, apologies
for the confusion.
-Daniel

> 
> Thanks for the review, I'll apply now.
> 
> -Paul
> > 
> 
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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