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SubjectRe: [PATCH 15/20] drm: rcar-du: Claim CMM support for Gen3 SoCs
Hi Jacopo,

Thank you for the patch.

On Thu, Jun 06, 2019 at 04:22:15PM +0200, Jacopo Mondi wrote:
> Add CMM to the list of supported features for Gen3 SoCs that provide it:
> - R8A7795
> - R8A7796
> - R8A77965
> - R8A7799x
>
> Leave R8A77970 out as V3M and V3H are the only Gen3 SoCs that do not
> support CMM.
>
> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>

Do we actually need this ? Could we just skip CMM handling if the cmms
property isn't set in DT ?

> ---
> drivers/gpu/drm/rcar-du/rcar_du_drv.c | 12 ++++++++----
> drivers/gpu/drm/rcar-du/rcar_du_drv.h | 1 +
> 2 files changed, 9 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
> index 75ab17af13a9..1e69cfa11798 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
> @@ -247,7 +247,8 @@ static const struct rcar_du_device_info rcar_du_r8a7795_info = {
> .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
> | RCAR_DU_FEATURE_VSP1_SOURCE
> | RCAR_DU_FEATURE_INTERLACED
> - | RCAR_DU_FEATURE_TVM_SYNC,
> + | RCAR_DU_FEATURE_TVM_SYNC
> + | RCAR_DU_FEATURE_CMM,
> .channels_mask = BIT(3) | BIT(2) | BIT(1) | BIT(0),
> .routes = {
> /*
> @@ -280,7 +281,8 @@ static const struct rcar_du_device_info rcar_du_r8a7796_info = {
> .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
> | RCAR_DU_FEATURE_VSP1_SOURCE
> | RCAR_DU_FEATURE_INTERLACED
> - | RCAR_DU_FEATURE_TVM_SYNC,
> + | RCAR_DU_FEATURE_TVM_SYNC
> + | RCAR_DU_FEATURE_CMM,
> .channels_mask = BIT(2) | BIT(1) | BIT(0),
> .routes = {
> /*
> @@ -309,7 +311,8 @@ static const struct rcar_du_device_info rcar_du_r8a77965_info = {
> .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
> | RCAR_DU_FEATURE_VSP1_SOURCE
> | RCAR_DU_FEATURE_INTERLACED
> - | RCAR_DU_FEATURE_TVM_SYNC,
> + | RCAR_DU_FEATURE_TVM_SYNC
> + | RCAR_DU_FEATURE_CMM,
> .channels_mask = BIT(3) | BIT(1) | BIT(0),
> .routes = {
> /*
> @@ -357,7 +360,8 @@ static const struct rcar_du_device_info rcar_du_r8a77970_info = {
> static const struct rcar_du_device_info rcar_du_r8a7799x_info = {
> .gen = 3,
> .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK
> - | RCAR_DU_FEATURE_VSP1_SOURCE,
> + | RCAR_DU_FEATURE_VSP1_SOURCE
> + | RCAR_DU_FEATURE_CMM,
> .channels_mask = BIT(1) | BIT(0),
> .routes = {
> /*
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h
> index 1327cd0df90a..a00dccc447aa 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h
> @@ -28,6 +28,7 @@ struct rcar_du_encoder;
> #define RCAR_DU_FEATURE_VSP1_SOURCE BIT(1) /* Has inputs from VSP1 */
> #define RCAR_DU_FEATURE_INTERLACED BIT(2) /* HW supports interlaced */
> #define RCAR_DU_FEATURE_TVM_SYNC BIT(3) /* Has TV switch/sync modes */
> +#define RCAR_DU_FEATURE_CMM BIT(4) /* Has CMM */
>
> #define RCAR_DU_QUIRK_ALIGN_128B BIT(0) /* Align pitches to 128 bytes */
>

--
Regards,

Laurent Pinchart

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