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SubjectRe: [PATCH 17/20] drm: rcar-du: crtc: Enable and disable CMMs
Hi Jacopo,

Thank you for the patch.

On Thu, Jun 06, 2019 at 04:22:17PM +0200, Jacopo Mondi wrote:
> Enable/disable the CMM associated with a CRTC at
> atomic_enable()/atomic_disable() time.

I would squash this patch with the next 3. It's hard to review them
independently.

> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
> ---
> drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
> index 9f270a54b164..e6d3df37c827 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
> @@ -21,6 +21,7 @@
> #include <drm/drm_plane_helper.h>
> #include <drm/drm_vblank.h>
>
> +#include "rcar_cmm.h"
> #include "rcar_du_crtc.h"
> #include "rcar_du_drv.h"
> #include "rcar_du_encoder.h"
> @@ -523,6 +524,7 @@ static int rcar_du_crtc_get(struct rcar_du_crtc *rcrtc)
> goto error_group;
>
> rcar_du_crtc_setup(rcrtc);
> +

Unrelated change ?

> rcrtc->initialized = true;
>
> return 0;
> @@ -619,6 +621,9 @@ static void rcar_du_crtc_stop(struct rcar_du_crtc *rcrtc)
> if (rcar_du_has(rcrtc->dev, RCAR_DU_FEATURE_VSP1_SOURCE))
> rcar_du_vsp_disable(rcrtc);
>
> + if (rcar_du_has(rcrtc->dev, RCAR_DU_FEATURE_CMM) && rcrtc->cmm)

You can just test rcrtc->cmm. Same below.

> + rcar_cmm_disable(rcrtc->cmm);
> +
> /*
> * Select switch sync mode. This stops display operation and configures
> * the HSYNC and VSYNC signals as inputs.
> @@ -686,6 +691,9 @@ static void rcar_du_crtc_atomic_enable(struct drm_crtc *crtc,
> }
>
> rcar_du_crtc_start(rcrtc);
> +
> + if (rcar_du_has(rcrtc->dev, RCAR_DU_FEATURE_CMM) && rcrtc->cmm)
> + rcar_cmm_enable(rcrtc->cmm);
> }
>
> static void rcar_du_crtc_atomic_disable(struct drm_crtc *crtc,

--
Regards,

Laurent Pinchart

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