Thread (23 messages) 23 messages, 2 authors, 2022-06-28

[PATCH v23 05/14] drm/mediatek: add display merge start/stop API for cmdq support

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STALE1577d SUPERSEDED: 4 (3M)

From: Nancy.Lin <hidden>
Date: 2022-06-20 09:32:33
Also in: dri-devel, linux-mediatek, llvm
Subsystem: drm drivers, drm drivers for mediatek, the rest · Maintainers: David Airlie, Simona Vetter, Chun-Kuang Hu, Philipp Zabel, Linus Torvalds

Revision v23 of 31 in this series; 4 review trailers (1 from subsystem maintainers).

Revisions (31)
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  24. v23 current
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  31. v30 [diff vs current]
Add merge start/stop API for cmdq support. The ovl_adaptor merges
are configured with each drm plane update. Need to enable/disable
merge with cmdq making sure all the settings taken effect in the
same vblank.

Signed-off-by: Nancy.Lin <redacted>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Bo-Chen Chen <redacted>
---
 drivers/gpu/drm/mediatek/mtk_disp_drv.h   |  2 ++
 drivers/gpu/drm/mediatek/mtk_disp_merge.c | 18 +++++++++++++++---
 2 files changed, 17 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
index e847e90f436d..33e61a136bbc 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
@@ -66,6 +66,8 @@ void mtk_merge_stop(struct device *dev);
 void mtk_merge_advance_config(struct device *dev, unsigned int l_w, unsigned int r_w,
 			      unsigned int h, unsigned int vrefresh, unsigned int bpc,
 			      struct cmdq_pkt *cmdq_pkt);
+void mtk_merge_start_cmdq(struct device *dev, struct cmdq_pkt *cmdq_pkt);
+void mtk_merge_stop_cmdq(struct device *dev, struct cmdq_pkt *cmdq_pkt);
 
 void mtk_ovl_bgclr_in_on(struct device *dev);
 void mtk_ovl_bgclr_in_off(struct device *dev);
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_merge.c b/drivers/gpu/drm/mediatek/mtk_disp_merge.c
index 40da0555416d..c7af5ccab916 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_merge.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_merge.c
@@ -67,17 +67,29 @@ struct mtk_disp_merge {
 };
 
 void mtk_merge_start(struct device *dev)
+{
+	mtk_merge_start_cmdq(dev, NULL);
+}
+
+void mtk_merge_stop(struct device *dev)
+{
+	mtk_merge_stop_cmdq(dev, NULL);
+}
+
+void mtk_merge_start_cmdq(struct device *dev, struct cmdq_pkt *cmdq_pkt)
 {
 	struct mtk_disp_merge *priv = dev_get_drvdata(dev);
 
-	writel(MERGE_EN, priv->regs + DISP_REG_MERGE_CTRL);
+	mtk_ddp_write(cmdq_pkt, 1, &priv->cmdq_reg, priv->regs,
+		      DISP_REG_MERGE_CTRL);
 }
 
-void mtk_merge_stop(struct device *dev)
+void mtk_merge_stop_cmdq(struct device *dev, struct cmdq_pkt *cmdq_pkt)
 {
 	struct mtk_disp_merge *priv = dev_get_drvdata(dev);
 
-	writel(0x0, priv->regs + DISP_REG_MERGE_CTRL);
+	mtk_ddp_write(cmdq_pkt, 0, &priv->cmdq_reg, priv->regs,
+		      DISP_REG_MERGE_CTRL);
 }
 
 static void mtk_merge_fifo_setting(struct mtk_disp_merge *priv,
-- 
2.18.0


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