Thread (31 messages) 31 messages, 4 authors, 2021-01-28

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

From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Date: 2021-01-12 23:10:51
Also in: dri-devel, linux-devicetree, linux-mediatek, lkml

Hi, Yongqiang:

Yongqiang Niu [off-list ref] 於 2021年1月11日 週一 下午3:48寫道:
gamma power domain need controled in the device.
In this series, why only gamma and color add pm runtime support? I
think all ddp component need pm runtime support. And pm runtime
support is not related to mt8192, so move these patches out of this
series.

Regards,
Chun-Kuang.
quoted hunk ↗ jump to hunk
Signed-off-by: Yongqiang Niu <redacted>
Signed-off-by: Yidi Lin <redacted>
---
 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
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