linux-kernel - [PATCH v3, 09/15] drm/mediatek: Add pm runtime support for gamma

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Date:   Mon, 11 Jan 2021 15:43:45 +0800
From:   Yongqiang Niu <yongqiang.niu@...iatek.com>
To:     CK Hu <ck.hu@...iatek.com>, Philipp Zabel <p.zabel@...gutronix.de>,
        "Rob Herring" <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>
CC:     David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        "Mark Rutland" <mark.rutland@....com>,
        <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Yongqiang Niu <yongqiang.niu@...iatek.com>,
        Yidi Lin <yidi.lin@...iatek.com>
Subject: [PATCH v3, 09/15] drm/mediatek: Add pm runtime support for gamma

gamma power domain need controled in the device.

Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>
Signed-off-by: Yidi Lin <yidi.lin@...iatek.com>
---
 drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
index 3c1ea07..da93079 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
@@ -10,6 +10,7 @@
 #include <linux/of_device.h>
 #include <linux/of_irq.h>
 #include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/soc/mediatek/mtk-cmdq.h>
 
 #include "mtk_drm_crtc.h"
@@ -156,6 +157,8 @@ static int mtk_disp_gamma_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, priv);
 
+	pm_runtime_enable(dev);
+
 	ret = component_add(dev, &mtk_disp_gamma_component_ops);
 	if (ret)
 		dev_err(dev, "Failed to add component: %d\n", ret);
@@ -165,6 +168,8 @@ static int mtk_disp_gamma_probe(struct platform_device *pdev)
 
 static int mtk_disp_gamma_remove(struct platform_device *pdev)
 {
+	pm_runtime_disable(&pdev->dev);
+
 	component_del(&pdev->dev, &mtk_disp_gamma_component_ops);
 
 	return 0;
-- 
1.8.1.1.dirty