[PATCH v3, 3/8] soc: mediatek: mmsys: add mt8183 function call for setting the routing registers

Yongqiang Niu
2020-12-28T08:38:36Z

add mt8183 function call for setting the routing registers

Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
---
drivers/soc/mediatek/mmsys/Makefile | 1 +
drivers/soc/mediatek/mmsys/mt8183-mmsys.c | 90 +++++++++++++++++++++++++++++++
drivers/soc/mediatek/mmsys/mtk-mmsys.c | 1 +
include/linux/soc/mediatek/mtk-mmsys.h | 1 +
4 files changed, 93 insertions(+)
create mode 100644 drivers/soc/mediatek/mmsys/mt8183-mmsys.c

diff --git a/drivers/soc/mediatek/mmsys/Makefile b/drivers/soc/mediatek/mmsys/Makefile
index ac03025..25eeb9e5 100644
--- a/drivers/soc/mediatek/mmsys/Makefile
+++ b/drivers/soc/mediatek/mmsys/Makefile
@@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_MTK_MMSYS) += mt2701-mmsys.o
+obj-$(CONFIG_MTK_MMSYS) += mt8183-mmsys.o
obj-$(CONFIG_MTK_MMSYS) += mtk-mmsys.o
diff --git a/drivers/soc/mediatek/mmsys/mt8183-mmsys.c b/drivers/soc/mediatek/mmsys/mt8183-mmsys.c
new file mode 100644
index 0000000..192b4ab
--- /dev/null
+++ b/drivers/soc/mediatek/mmsys/mt8183-mmsys.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2020 MediaTek Inc.
+
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/soc/mediatek/mtk-mmsys.h>
+
+#define DISP_OVL0_MOUT_EN 0xf00
+#define DISP_OVL0_2L_MOUT_EN 0xf04
+#define DISP_OVL1_2L_MOUT_EN 0xf08
+#define DISP_DITHER0_MOUT_EN 0xf0c
+#define DISP_PATH0_SEL_IN 0xf24
+#define DISP_DSI0_SEL_IN 0xf2c
+#define DISP_DPI0_SEL_IN 0xf30
+#define DISP_RDMA0_SOUT_SEL_IN 0xf50
+#define DISP_RDMA1_SOUT_SEL_IN 0xf54
+
+#define OVL0_MOUT_EN_OVL0_2L BIT(4)
+#define OVL0_2L_MOUT_EN_DISP_PATH0 BIT(0)
+#define OVL1_2L_MOUT_EN_RDMA1 BIT(4)
+#define DITHER0_MOUT_IN_DSI0 BIT(0)
+#define DISP_PATH0_SEL_IN_OVL0_2L 0x1
+#define DSI0_SEL_IN_RDMA0 0x1
+#define DSI0_SEL_IN_RDMA1 0x3
+#define DPI0_SEL_IN_RDMA0 0x1
+#define DPI0_SEL_IN_RDMA1 0x2
+#define RDMA0_SOUT_COLOR0 0x1
+#define RDMA1_SOUT_DSI0 0x1
+
+static unsigned int mtk_mmsys_ddp_mout_en(enum mtk_ddp_comp_id cur,
+ enum mtk_ddp_comp_id next,
+ unsigned int *addr)
+{
+ unsigned int value;
+
+ if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_OVL_2L0) {
+ *addr = DISP_OVL0_MOUT_EN;
+ value = OVL0_MOUT_EN_OVL0_2L;
+ } else if (cur == DDP_COMPONENT_OVL_2L0 && next == DDP_COMPONENT_RDMA0) {
+ *addr = DISP_OVL0_2L_MOUT_EN;
+ value = OVL0_2L_MOUT_EN_DISP_PATH0;
+ } else if (cur == DDP_COMPONENT_OVL_2L1 && next == DDP_COMPONENT_RDMA1) {
+ *addr = DISP_OVL1_2L_MOUT_EN;
+ value = OVL1_2L_MOUT_EN_RDMA1;
+ } else if (cur == DDP_COMPONENT_DITHER && next == DDP_COMPONENT_DSI0) {
+ *addr = DISP_DITHER0_MOUT_EN;
+ value = DITHER0_MOUT_IN_DSI0;
+ } else {
+ value = 0;
+ }
+
+ return value;
+}
+
+static unsigned int mtk_mmsys_ddp_sel_in(enum mtk_ddp_comp_id cur,
+ enum mtk_ddp_comp_id next,
+ unsigned int *addr)
+{
+ unsigned int value;
+
+ if (cur == DDP_COMPONENT_OVL_2L0 && next == DDP_COMPONENT_RDMA0) {
+ *addr = DISP_PATH0_SEL_IN;
+ value = DISP_PATH0_SEL_IN_OVL0_2L;
+ } else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI0) {
+ *addr = DISP_DPI0_SEL_IN;
+ value = DPI0_SEL_IN_RDMA1;
+ } else {
+ value = 0;
+ }
+
+ return value;
+}
+
+static void mtk_mmsys_ddp_sout_sel(void __iomem *config_regs,
+ enum mtk_ddp_comp_id cur,
+ enum mtk_ddp_comp_id next)
+{
+ if (cur == DDP_COMPONENT_RDMA0 && next == DDP_COMPONENT_COLOR0) {
+ writel_relaxed(RDMA0_SOUT_COLOR0, config_regs + DISP_RDMA0_SOUT_SEL_IN);
+ }
+}
+
+struct mtk_mmsys_conn_funcs mt8183_mmsys_funcs = {
+ .mout_en = mtk_mmsys_ddp_mout_en,
+ .sel_in = mtk_mmsys_ddp_sel_in,
+ .sout_sel = mtk_mmsys_ddp_sout_sel,
+};
diff --git a/drivers/soc/mediatek/mmsys/mtk-mmsys.c b/drivers/soc/mediatek/mmsys/mtk-mmsys.c
index c35bda1..dae665b 100644
--- a/drivers/soc/mediatek/mmsys/mtk-mmsys.c
+++ b/drivers/soc/mediatek/mmsys/mtk-mmsys.c
@@ -42,6 +42,7 @@ struct mtk_mmsys_driver_data {

static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = {
.clk_driver = "clk-mt8183-mm",
+ .funcs = &mt8183_mmsys_funcs,
};

struct mtk_mmsys {
diff --git a/include/linux/soc/mediatek/mtk-mmsys.h b/include/linux/soc/mediatek/mtk-mmsys.h
index 17e8b91..4b6c514 100644
--- a/include/linux/soc/mediatek/mtk-mmsys.h
+++ b/include/linux/soc/mediatek/mtk-mmsys.h
@@ -55,6 +55,7 @@ struct mtk_mmsys_conn_funcs {
};

extern struct mtk_mmsys_conn_funcs mt2701_mmsys_funcs;
+extern struct mtk_mmsys_conn_funcs mt8183_mmsys_funcs;

void mtk_mmsys_ddp_connect(struct device *dev,
enum mtk_ddp_comp_id cur,
--
1.8.1.1.dirty