Merge tag 'v5.15-next-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into arm/drivers

- mt8192: add mutex support
- mmsys:
  add more components
  add routing table for mt8192
  add reset controller support

* tag 'v5.15-next-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux:
  drm/mediatek: mtk_dsi: Reset the dsi0 hardware
  soc: mediatek: mmsys: Add reset controller support
  soc: mediatek: add mtk mutex support for MT8192
  soc: mediatek: mmsys: Add mt8192 mmsys routing table
  soc: mediatek: mmsys: add comp OVL_2L2/POSTMASK/RDMA4

Link: https://lore.kernel.org/r/b1d364d0-f2ae-488b-b3f7-c694049c20d3@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

5 files changed, 196 insertions, 1 deletions

diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index 93b40c245f00..5d90d2eb0019 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -11,6 +11,7 @@
 #include <linux/of_platform.h>
 #include <linux/phy/phy.h>
 #include <linux/platform_device.h>
+#include <linux/reset.h>
 
 #include <video/mipi_display.h>
 #include <video/videomode.h>
@@ -980,8 +981,10 @@ static int mtk_dsi_bind(struct device *dev, struct device *master, void *data)
 	struct mtk_dsi *dsi = dev_get_drvdata(dev);
 
 	ret = mtk_dsi_encoder_init(drm, dsi);
+	if (ret)
+		return ret;
 
-	return ret;
+	return device_reset_optional(dev);
 }
 
 static void mtk_dsi_unbind(struct device *dev, struct device *master,
diff --git a/drivers/soc/mediatek/mt8192-mmsys.h b/drivers/soc/mediatek/mt8192-mmsys.h
new file mode 100644
index 000000000000..6f0a57044a7b
--- /dev/null
+++ b/drivers/soc/mediatek/mt8192-mmsys.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __SOC_MEDIATEK_MT8192_MMSYS_H
+#define __SOC_MEDIATEK_MT8192_MMSYS_H
+
+#define MT8192_MMSYS_OVL_MOUT_EN		0xf04
+#define MT8192_DISP_OVL1_2L_MOUT_EN		0xf08
+#define MT8192_DISP_OVL0_2L_MOUT_EN		0xf18
+#define MT8192_DISP_OVL0_MOUT_EN		0xf1c
+#define MT8192_DISP_RDMA0_SEL_IN		0xf2c
+#define MT8192_DISP_RDMA0_SOUT_SEL		0xf30
+#define MT8192_DISP_CCORR0_SOUT_SEL		0xf34
+#define MT8192_DISP_AAL0_SEL_IN			0xf38
+#define MT8192_DISP_DITHER0_MOUT_EN		0xf3c
+#define MT8192_DISP_DSI0_SEL_IN			0xf40
+#define MT8192_DISP_OVL2_2L_MOUT_EN		0xf4c
+
+#define MT8192_DISP_OVL0_GO_BLEND			BIT(0)
+#define MT8192_DITHER0_MOUT_IN_DSI0			BIT(0)
+#define MT8192_OVL0_MOUT_EN_DISP_RDMA0			BIT(0)
+#define MT8192_OVL2_2L_MOUT_EN_RDMA4			BIT(0)
+#define MT8192_DISP_OVL0_GO_BG				BIT(1)
+#define MT8192_DISP_OVL0_2L_GO_BLEND			BIT(2)
+#define MT8192_DISP_OVL0_2L_GO_BG			BIT(3)
+#define MT8192_OVL1_2L_MOUT_EN_RDMA1			BIT(4)
+#define MT8192_OVL0_MOUT_EN_OVL0_2L			BIT(4)
+#define MT8192_RDMA0_SEL_IN_OVL0_2L			0x3
+#define MT8192_RDMA0_SOUT_COLOR0			0x1
+#define MT8192_CCORR0_SOUT_AAL0				0x1
+#define MT8192_AAL0_SEL_IN_CCORR0			0x1
+#define MT8192_DSI0_SEL_IN_DITHER0			0x1
+
+static const struct mtk_mmsys_routes mmsys_mt8192_routing_table[] = {
+	{
+		DDP_COMPONENT_OVL_2L0, DDP_COMPONENT_RDMA0,
+		MT8192_DISP_OVL0_2L_MOUT_EN, MT8192_OVL0_MOUT_EN_DISP_RDMA0,
+		MT8192_OVL0_MOUT_EN_DISP_RDMA0
+	}, {
+		DDP_COMPONENT_OVL_2L2, DDP_COMPONENT_RDMA4,
+		MT8192_DISP_OVL2_2L_MOUT_EN, MT8192_OVL2_2L_MOUT_EN_RDMA4,
+		MT8192_OVL2_2L_MOUT_EN_RDMA4
+	}, {
+		DDP_COMPONENT_DITHER, DDP_COMPONENT_DSI0,
+		MT8192_DISP_DITHER0_MOUT_EN, MT8192_DITHER0_MOUT_IN_DSI0,
+		MT8192_DITHER0_MOUT_IN_DSI0
+	}, {
+		DDP_COMPONENT_OVL_2L0, DDP_COMPONENT_RDMA0,
+		MT8192_DISP_RDMA0_SEL_IN, MT8192_RDMA0_SEL_IN_OVL0_2L,
+		MT8192_RDMA0_SEL_IN_OVL0_2L
+	}, {
+		DDP_COMPONENT_CCORR, DDP_COMPONENT_AAL0,
+		MT8192_DISP_AAL0_SEL_IN, MT8192_AAL0_SEL_IN_CCORR0,
+		MT8192_AAL0_SEL_IN_CCORR0
+	}, {
+		DDP_COMPONENT_DITHER, DDP_COMPONENT_DSI0,
+		MT8192_DISP_DSI0_SEL_IN, MT8192_DSI0_SEL_IN_DITHER0
+	}, {
+		DDP_COMPONENT_RDMA0, DDP_COMPONENT_COLOR0,
+		MT8192_DISP_RDMA0_SOUT_SEL, MT8192_RDMA0_SOUT_COLOR0,
+		MT8192_RDMA0_SOUT_COLOR0
+	}, {
+		DDP_COMPONENT_CCORR, DDP_COMPONENT_AAL0,
+		MT8192_DISP_CCORR0_SOUT_SEL, MT8192_CCORR0_SOUT_AAL0,
+		MT8192_CCORR0_SOUT_AAL0
+	}, {
+		DDP_COMPONENT_OVL0, DDP_COMPONENT_OVL_2L0,
+		MT8192_MMSYS_OVL_MOUT_EN, MT8192_DISP_OVL0_GO_BG,
+		MT8192_DISP_OVL0_GO_BG
+	}, {
+		DDP_COMPONENT_OVL_2L0, DDP_COMPONENT_RDMA0,
+		MT8192_MMSYS_OVL_MOUT_EN, MT8192_DISP_OVL0_2L_GO_BLEND,
+		MT8192_DISP_OVL0_2L_GO_BLEND
+	}
+};
+
+#endif /* __SOC_MEDIATEK_MT8192_MMSYS_H */
diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
index a78e88f27b62..1e448f1ffefb 100644
--- a/drivers/soc/mediatek/mtk-mmsys.c
+++ b/drivers/soc/mediatek/mtk-mmsys.c
@@ -4,15 +4,18 @@
  * Author: James Liao <jamesjj.liao@mediatek.com>
  */
 
+#include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/io.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
+#include <linux/reset-controller.h>
 #include <linux/soc/mediatek/mtk-mmsys.h>
 
 #include "mtk-mmsys.h"
 #include "mt8167-mmsys.h"
 #include "mt8183-mmsys.h"
+#include "mt8192-mmsys.h"
 #include "mt8365-mmsys.h"
 
 static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = {
@@ -53,6 +56,12 @@ static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = {
 	.num_routes = ARRAY_SIZE(mmsys_mt8183_routing_table),
 };
 
+static const struct mtk_mmsys_driver_data mt8192_mmsys_driver_data = {
+	.clk_driver = "clk-mt8192-mm",
+	.routes = mmsys_mt8192_routing_table,
+	.num_routes = ARRAY_SIZE(mmsys_mt8192_routing_table),
+};
+
 static const struct mtk_mmsys_driver_data mt8365_mmsys_driver_data = {
 	.clk_driver = "clk-mt8365-mm",
 	.routes = mt8365_mmsys_routing_table,
@@ -62,6 +71,8 @@ static const struct mtk_mmsys_driver_data mt8365_mmsys_driver_data = {
 struct mtk_mmsys {
 	void __iomem *regs;
 	const struct mtk_mmsys_driver_data *data;
+	spinlock_t lock; /* protects mmsys_sw_rst_b reg */
+	struct reset_controller_dev rcdev;
 };
 
 void mtk_mmsys_ddp_connect(struct device *dev,
@@ -101,6 +112,58 @@ void mtk_mmsys_ddp_disconnect(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(mtk_mmsys_ddp_disconnect);
 
+static int mtk_mmsys_reset_update(struct reset_controller_dev *rcdev, unsigned long id,
+				  bool assert)
+{
+	struct mtk_mmsys *mmsys = container_of(rcdev, struct mtk_mmsys, rcdev);
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&mmsys->lock, flags);
+
+	reg = readl_relaxed(mmsys->regs + MMSYS_SW0_RST_B);
+
+	if (assert)
+		reg &= ~BIT(id);
+	else
+		reg |= BIT(id);
+
+	writel_relaxed(reg, mmsys->regs + MMSYS_SW0_RST_B);
+
+	spin_unlock_irqrestore(&mmsys->lock, flags);
+
+	return 0;
+}
+
+static int mtk_mmsys_reset_assert(struct reset_controller_dev *rcdev, unsigned long id)
+{
+	return mtk_mmsys_reset_update(rcdev, id, true);
+}
+
+static int mtk_mmsys_reset_deassert(struct reset_controller_dev *rcdev, unsigned long id)
+{
+	return mtk_mmsys_reset_update(rcdev, id, false);
+}
+
+static int mtk_mmsys_reset(struct reset_controller_dev *rcdev, unsigned long id)
+{
+	int ret;
+
+	ret = mtk_mmsys_reset_assert(rcdev, id);
+	if (ret)
+		return ret;
+
+	usleep_range(1000, 1100);
+
+	return mtk_mmsys_reset_deassert(rcdev, id);
+}
+
+static const struct reset_control_ops mtk_mmsys_reset_ops = {
+	.assert = mtk_mmsys_reset_assert,
+	.deassert = mtk_mmsys_reset_deassert,
+	.reset = mtk_mmsys_reset,
+};
+
 static int mtk_mmsys_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -120,6 +183,18 @@ static int mtk_mmsys_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	spin_lock_init(&mmsys->lock);
+
+	mmsys->rcdev.owner = THIS_MODULE;
+	mmsys->rcdev.nr_resets = 32;
+	mmsys->rcdev.ops = &mtk_mmsys_reset_ops;
+	mmsys->rcdev.of_node = pdev->dev.of_node;
+	ret = devm_reset_controller_register(&pdev->dev, &mmsys->rcdev);
+	if (ret) {
+		dev_err(&pdev->dev, "Couldn't register mmsys reset controller: %d\n", ret);
+		return ret;
+	}
+
 	mmsys->data = of_device_get_match_data(&pdev->dev);
 	platform_set_drvdata(pdev, mmsys);
 
@@ -168,6 +243,10 @@ static const struct of_device_id of_match_mtk_mmsys[] = {
 		.data = &mt8183_mmsys_driver_data,
 	},
 	{
+		.compatible = "mediatek,mt8192-mmsys",
+		.data = &mt8192_mmsys_driver_data,
+	},
+	{
 		.compatible = "mediatek,mt8365-mmsys",
 		.data = &mt8365_mmsys_driver_data,
 	},
diff --git a/drivers/soc/mediatek/mtk-mmsys.h b/drivers/soc/mediatek/mtk-mmsys.h
index 9e2b81bd38db..8b0ed05117ea 100644
--- a/drivers/soc/mediatek/mtk-mmsys.h
+++ b/drivers/soc/mediatek/mtk-mmsys.h
@@ -78,6 +78,8 @@
 #define DSI_SEL_IN_RDMA				0x1
 #define DSI_SEL_IN_MASK				0x1
 
+#define MMSYS_SW0_RST_B				0x140
+
 struct mtk_mmsys_routes {
 	u32 from_comp;
 	u32 to_comp;
diff --git a/drivers/soc/mediatek/mtk-mutex.c b/drivers/soc/mediatek/mtk-mutex.c
index 2e4bcc300576..2ca55bb5a8be 100644
--- a/drivers/soc/mediatek/mtk-mutex.c
+++ b/drivers/soc/mediatek/mtk-mutex.c
@@ -39,6 +39,18 @@
 #define MT8167_MUTEX_MOD_DISP_DITHER		15
 #define MT8167_MUTEX_MOD_DISP_UFOE		16
 
+#define MT8192_MUTEX_MOD_DISP_OVL0		0
+#define MT8192_MUTEX_MOD_DISP_OVL0_2L		1
+#define MT8192_MUTEX_MOD_DISP_RDMA0		2
+#define MT8192_MUTEX_MOD_DISP_COLOR0		4
+#define MT8192_MUTEX_MOD_DISP_CCORR0		5
+#define MT8192_MUTEX_MOD_DISP_AAL0		6
+#define MT8192_MUTEX_MOD_DISP_GAMMA0		7
+#define MT8192_MUTEX_MOD_DISP_POSTMASK0		8
+#define MT8192_MUTEX_MOD_DISP_DITHER0		9
+#define MT8192_MUTEX_MOD_DISP_OVL2_2L		16
+#define MT8192_MUTEX_MOD_DISP_RDMA4		17
+
 #define MT8183_MUTEX_MOD_DISP_RDMA0		0
 #define MT8183_MUTEX_MOD_DISP_RDMA1		1
 #define MT8183_MUTEX_MOD_DISP_OVL0		9
@@ -214,6 +226,20 @@ static const unsigned int mt8183_mutex_mod[DDP_COMPONENT_ID_MAX] = {
 	[DDP_COMPONENT_WDMA0] = MT8183_MUTEX_MOD_DISP_WDMA0,
 };
 
+static const unsigned int mt8192_mutex_mod[DDP_COMPONENT_ID_MAX] = {
+	[DDP_COMPONENT_AAL0] = MT8192_MUTEX_MOD_DISP_AAL0,
+	[DDP_COMPONENT_CCORR] = MT8192_MUTEX_MOD_DISP_CCORR0,
+	[DDP_COMPONENT_COLOR0] = MT8192_MUTEX_MOD_DISP_COLOR0,
+	[DDP_COMPONENT_DITHER] = MT8192_MUTEX_MOD_DISP_DITHER0,
+	[DDP_COMPONENT_GAMMA] = MT8192_MUTEX_MOD_DISP_GAMMA0,
+	[DDP_COMPONENT_POSTMASK0] = MT8192_MUTEX_MOD_DISP_POSTMASK0,
+	[DDP_COMPONENT_OVL0] = MT8192_MUTEX_MOD_DISP_OVL0,
+	[DDP_COMPONENT_OVL_2L0] = MT8192_MUTEX_MOD_DISP_OVL0_2L,
+	[DDP_COMPONENT_OVL_2L2] = MT8192_MUTEX_MOD_DISP_OVL2_2L,
+	[DDP_COMPONENT_RDMA0] = MT8192_MUTEX_MOD_DISP_RDMA0,
+	[DDP_COMPONENT_RDMA4] = MT8192_MUTEX_MOD_DISP_RDMA4,
+};
+
 static const unsigned int mt2712_mutex_sof[MUTEX_SOF_DSI3 + 1] = {
 	[MUTEX_SOF_SINGLE_MODE] = MUTEX_SOF_SINGLE_MODE,
 	[MUTEX_SOF_DSI0] = MUTEX_SOF_DSI0,
@@ -275,6 +301,13 @@ static const struct mtk_mutex_data mt8183_mutex_driver_data = {
 	.no_clk = true,
 };
 
+static const struct mtk_mutex_data mt8192_mutex_driver_data = {
+	.mutex_mod = mt8192_mutex_mod,
+	.mutex_sof = mt8183_mutex_sof,
+	.mutex_mod_reg = MT8183_MUTEX0_MOD0,
+	.mutex_sof_reg = MT8183_MUTEX0_SOF0,
+};
+
 struct mtk_mutex *mtk_mutex_get(struct device *dev)
 {
 	struct mtk_mutex_ctx *mtx = dev_get_drvdata(dev);
@@ -507,6 +540,8 @@ static const struct of_device_id mutex_driver_dt_match[] = {
 	  .data = &mt8173_mutex_driver_data},
 	{ .compatible = "mediatek,mt8183-disp-mutex",
 	  .data = &mt8183_mutex_driver_data},
+	{ .compatible = "mediatek,mt8192-disp-mutex",
+	  .data = &mt8192_mutex_driver_data},
 	{},
 };
 MODULE_DEVICE_TABLE(of, mutex_driver_dt_match);