linux-kernel - [PATCH 17/20] drm: rcar-du: crtc: Enable and disable CMMs

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Date:   Thu,  6 Jun 2019 16:22:17 +0200
From:   Jacopo Mondi <jacopo+renesas@...ndi.org>
To:     laurent.pinchart@...asonboard.com,
        kieran.bingham+renesas@...asonboard.com, airlied@...ux.ie,
        daniel@...ll.ch
Cc:     Jacopo Mondi <jacopo+renesas@...ndi.org>,
        koji.matsuoka.xm@...esas.com, muroya@....co.jp,
        VenkataRajesh.Kalakodima@...bosch.com,
        Harsha.ManjulaMallikarjun@...bosch.com,
        linux-renesas-soc@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 17/20] drm: rcar-du: crtc: Enable and disable CMMs

Enable/disable the CMM associated with a CRTC at
atomic_enable()/atomic_disable() time.

Signed-off-by: Jacopo Mondi <jacopo+renesas@...ndi.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);
+
 	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)
+		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,
-- 
2.21.0