linux-kernel - [PATCH v1 02/21] drm/mediatek: add component POSTMASK

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Message-ID: <1597903458-8055-3-git-send-email-yongqiang.niu@mediatek.com>
Date:   Thu, 20 Aug 2020 14:03:59 +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>,
        Yongqiang Niu <yongqiang.niu@...iatek.com>
Subject: [PATCH v1 02/21] drm/mediatek: add component POSTMASK

This patch add component POSTMASK

Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 31 +++++++++++++++++++++++++++++
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h |  1 +
 include/linux/soc/mediatek/mtk-mmsys.h      |  1 +
 3 files changed, 33 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 5e97ca5..8b9fb5e 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -58,6 +58,10 @@
 #define DISP_GAMMA_SIZE				0x0030
 #define DISP_GAMMA_LUT				0x0700
 
+#define DISP_POSTMASK_EN			0x0000
+#define DISP_POSTMASK_CFG			0x0020
+#define DISP_POSTMASK_SIZE			0x0030
+
 #define LUT_10BIT_MASK				0x03ff
 
 #define OD_RELAYMODE				BIT(0)
@@ -319,6 +323,24 @@ static void mtk_gamma_set(struct mtk_ddp_comp *comp,
 	}
 }
 
+static void mtk_postmask_config(struct mtk_ddp_comp *comp, unsigned int w,
+			      unsigned int h, unsigned int vrefresh,
+			      unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+	mtk_ddp_write(cmdq_pkt, w << 16 | h, comp, DISP_POSTMASK_SIZE);
+	mtk_ddp_write(cmdq_pkt, DITHER_RELAY_MODE, comp, DISP_POSTMASK_CFG);
+}
+
+static void mtk_postmask_start(struct mtk_ddp_comp *comp)
+{
+	writel(DITHER_EN, comp->regs + DISP_POSTMASK_EN);
+}
+
+static void mtk_postmask_stop(struct mtk_ddp_comp *comp)
+{
+	writel_relaxed(0x0, comp->regs + DISP_POSTMASK_EN);
+}
+
 static const struct mtk_ddp_comp_funcs ddp_aal = {
 	.gamma_set = mtk_gamma_set,
 	.config = mtk_aal_config,
@@ -346,6 +368,12 @@ static void mtk_gamma_set(struct mtk_ddp_comp *comp,
 	.stop = mtk_gamma_stop,
 };
 
+static const struct mtk_ddp_comp_funcs ddp_postmask = {
+	.config = mtk_postmask_config,
+	.start = mtk_postmask_start,
+	.stop = mtk_postmask_stop,
+};
+
 static const struct mtk_ddp_comp_funcs ddp_od = {
 	.config = mtk_od_config,
 	.start = mtk_od_start,
@@ -372,6 +400,7 @@ static void mtk_gamma_set(struct mtk_ddp_comp *comp,
 	[MTK_DISP_MUTEX] = "mutex",
 	[MTK_DISP_OD] = "od",
 	[MTK_DISP_BLS] = "bls",
+	[MTK_DISP_POSTMASK] = "postmask",
 };
 
 struct mtk_ddp_comp_match {
@@ -402,6 +431,8 @@ struct mtk_ddp_comp_match {
 	[DDP_COMPONENT_OVL_2L0]	= { MTK_DISP_OVL_2L,	0, NULL },
 	[DDP_COMPONENT_OVL_2L1]	= { MTK_DISP_OVL_2L,	1, NULL },
 	[DDP_COMPONENT_OVL_2L2]	= { MTK_DISP_OVL_2L,	2, NULL },
+	[DDP_COMPONENT_POSTMASK0]
+				= { MTK_DISP_POSTMASK,	0, &ddp_postmask },
 	[DDP_COMPONENT_PWM0]	= { MTK_DISP_PWM,	0, NULL },
 	[DDP_COMPONENT_PWM1]	= { MTK_DISP_PWM,	1, NULL },
 	[DDP_COMPONENT_PWM2]	= { MTK_DISP_PWM,	2, NULL },
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index 161201f..ae11b46 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -29,6 +29,7 @@ enum mtk_ddp_comp_type {
 	MTK_DISP_UFOE,
 	MTK_DSI,
 	MTK_DPI,
+	MTK_DISP_POSTMASK,
 	MTK_DISP_PWM,
 	MTK_DISP_MUTEX,
 	MTK_DISP_OD,
diff --git a/include/linux/soc/mediatek/mtk-mmsys.h b/include/linux/soc/mediatek/mtk-mmsys.h
index 268d95a..cc22c3e 100644
--- a/include/linux/soc/mediatek/mtk-mmsys.h
+++ b/include/linux/soc/mediatek/mtk-mmsys.h
@@ -31,6 +31,7 @@ enum mtk_ddp_comp_id {
 	DDP_COMPONENT_OVL_2L1,
 	DDP_COMPONENT_OVL_2L2,
 	DDP_COMPONENT_OVL1,
+	DDP_COMPONENT_POSTMASK0,
 	DDP_COMPONENT_PWM0,
 	DDP_COMPONENT_PWM1,
 	DDP_COMPONENT_PWM2,
-- 
1.8.1.1.dirty