add postmask private data for differnt soc support

Signed-off-by: Yongqiang Niu <yongqiang....@mediatek.com>
---
 drivers/gpu/drm/mediatek/Makefile            |   1 +
 drivers/gpu/drm/mediatek/mtk_disp_drv.h      |   8 +
 drivers/gpu/drm/mediatek/mtk_disp_postmask.c | 155 +++++++++++++++++++
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c  |  30 +---
 drivers/gpu/drm/mediatek/mtk_drm_drv.c       |   2 +
 drivers/gpu/drm/mediatek/mtk_drm_drv.h       |   1 +
 6 files changed, 170 insertions(+), 27 deletions(-)
 create mode 100644 drivers/gpu/drm/mediatek/mtk_disp_postmask.c

diff --git a/drivers/gpu/drm/mediatek/Makefile 
b/drivers/gpu/drm/mediatek/Makefile
index 29098d7c8307..f26fe646ee2a 100644
--- a/drivers/gpu/drm/mediatek/Makefile
+++ b/drivers/gpu/drm/mediatek/Makefile
@@ -5,6 +5,7 @@ mediatek-drm-y := mtk_disp_aal.o \
                  mtk_disp_color.o \
                  mtk_disp_gamma.o \
                  mtk_disp_ovl.o \
+                 mtk_disp_postmask.o \
                  mtk_disp_rdma.o \
                  mtk_drm_crtc.o \
                  mtk_drm_ddp_comp.o \
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h 
b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
index 86c3068894b1..f4c21195c3ea 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
@@ -81,6 +81,14 @@ void mtk_ovl_enable_vblank(struct device *dev,
                           void *vblank_cb_data);
 void mtk_ovl_disable_vblank(struct device *dev);
 
+int mtk_postmask_clk_enable(struct device *dev);
+void mtk_postmask_clk_disable(struct device *dev);
+void mtk_postmask_config(struct device *dev, unsigned int w,
+                               unsigned int h, unsigned int vrefresh,
+                               unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
+void mtk_postmask_start(struct device *dev);
+void mtk_postmask_stop(struct device *dev);
+
 void mtk_rdma_bypass_shadow(struct device *dev);
 int mtk_rdma_clk_enable(struct device *dev);
 void mtk_rdma_clk_disable(struct device *dev);
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_postmask.c 
b/drivers/gpu/drm/mediatek/mtk_disp_postmask.c
new file mode 100644
index 000000000000..fc04b445c2ed
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_disp_postmask.c
@@ -0,0 +1,155 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ */
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+
+#include "mtk_disp_drv.h"
+#include "mtk_drm_crtc.h"
+#include "mtk_drm_ddp_comp.h"
+
+#define DISP_POSTMASK_EN                       0x0000
+#define POSTMASK_EN                                    BIT(0)
+#define DISP_POSTMASK_CFG                      0x0020
+#define POSTMASK_RELAY_MODE                            BIT(0)
+#define DISP_POSTMASK_SIZE                     0x0030
+
+struct mtk_disp_postmask_data {
+       u32 reserved;
+};
+
+/*
+ * struct mtk_disp_postmask - DISP_POSTMASK driver structure
+ */
+struct mtk_disp_postmask {
+       struct clk *clk;
+       void __iomem *regs;
+       struct cmdq_client_reg cmdq_reg;
+       const struct mtk_disp_postmask_data *data;
+};
+
+int mtk_postmask_clk_enable(struct device *dev)
+{
+       struct mtk_disp_postmask *postmask = dev_get_drvdata(dev);
+
+       return clk_prepare_enable(postmask->clk);
+}
+
+void mtk_postmask_clk_disable(struct device *dev)
+{
+       struct mtk_disp_postmask *postmask = dev_get_drvdata(dev);
+
+       clk_disable_unprepare(postmask->clk);
+}
+
+void mtk_postmask_config(struct device *dev, unsigned int w,
+                               unsigned int h, unsigned int vrefresh,
+                               unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+       struct mtk_disp_postmask *postmask = dev_get_drvdata(dev);
+
+       mtk_ddp_write(cmdq_pkt, w << 16 | h, &postmask->cmdq_reg, 
postmask->regs,
+                     DISP_POSTMASK_SIZE);
+       mtk_ddp_write(cmdq_pkt, POSTMASK_RELAY_MODE, &postmask->cmdq_reg,
+                     postmask->regs, DISP_POSTMASK_CFG);
+}
+
+void mtk_postmask_start(struct device *dev)
+{
+       struct mtk_disp_postmask *postmask = dev_get_drvdata(dev);
+
+       writel(POSTMASK_EN, postmask->regs + DISP_POSTMASK_EN);
+}
+
+void mtk_postmask_stop(struct device *dev)
+{
+       struct mtk_disp_postmask *postmask = dev_get_drvdata(dev);
+
+       writel_relaxed(0x0, postmask->regs + DISP_POSTMASK_EN);
+}
+
+static int mtk_disp_postmask_bind(struct device *dev, struct device *master,
+                                 void *data)
+{
+       return 0;
+}
+
+static void mtk_disp_postmask_unbind(struct device *dev, struct device *master,
+                                    void *data)
+{
+}
+
+static const struct component_ops mtk_disp_postmask_component_ops = {
+       .bind   = mtk_disp_postmask_bind,
+       .unbind = mtk_disp_postmask_unbind,
+};
+
+static int mtk_disp_postmask_probe(struct platform_device *pdev)
+{
+       struct device *dev = &pdev->dev;
+       struct mtk_disp_postmask *priv;
+       struct resource *res;
+       int ret;
+
+       priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+       if (!priv)
+               return -ENOMEM;
+
+       priv->clk = devm_clk_get(dev, NULL);
+       if (IS_ERR(priv->clk)) {
+               dev_err(dev, "failed to get postmask clk\n");
+               return PTR_ERR(priv->clk);
+       }
+
+       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       priv->regs = devm_ioremap_resource(dev, res);
+       if (IS_ERR(priv->regs)) {
+               dev_err(dev, "failed to ioremap postmask\n");
+               return PTR_ERR(priv->regs);
+       }
+
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+       ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
+       if (ret)
+               dev_dbg(dev, "get mediatek,gce-client-reg fail!\n");
+#endif
+
+       priv->data = of_device_get_match_data(dev);
+       platform_set_drvdata(pdev, priv);
+
+       ret = component_add(dev, &mtk_disp_postmask_component_ops);
+       if (ret)
+               dev_err(dev, "Failed to add component: %d\n", ret);
+
+       return ret;
+}
+
+static int mtk_disp_postmask_remove(struct platform_device *pdev)
+{
+       component_del(&pdev->dev, &mtk_disp_postmask_component_ops);
+
+       return 0;
+}
+
+static const struct of_device_id mtk_disp_postmask_driver_dt_match[] = {
+       { .compatible = "mediatek,mt8192-disp-postmask"},
+       {},
+};
+MODULE_DEVICE_TABLE(of, mtk_disp_postmask_driver_dt_match);
+
+struct platform_driver mtk_disp_postmask_driver = {
+       .probe          = mtk_disp_postmask_probe,
+       .remove         = mtk_disp_postmask_remove,
+       .driver         = {
+               .name   = "mediatek-disp-postmask",
+               .owner  = THIS_MODULE,
+               .of_match_table = mtk_disp_postmask_driver_dt_match,
+       },
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c 
b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index b4b682bc1991..e02fc8dcad91 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -199,31 +199,6 @@ static void mtk_od_start(struct device *dev)
        writel(1, priv->regs + DISP_REG_OD_EN);
 }
 
-static void mtk_postmask_config(struct device *dev, unsigned int w,
-                               unsigned int h, unsigned int vrefresh,
-                               unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
-{
-       struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
-
-       mtk_ddp_write(cmdq_pkt, w << 16 | h, &priv->cmdq_reg, priv->regs,
-                     DISP_REG_POSTMASK_SIZE);
-       mtk_ddp_write(cmdq_pkt, POSTMASK_RELAY_MODE, &priv->cmdq_reg,
-                     priv->regs, DISP_REG_POSTMASK_CFG);
-}
-
-static void mtk_postmask_start(struct device *dev)
-{
-       struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
-
-       writel(POSTMASK_EN, priv->regs + DISP_REG_POSTMASK_EN);
-}
-
-static void mtk_postmask_stop(struct device *dev)
-{
-       struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
-
-       writel_relaxed(0x0, priv->regs + DISP_REG_POSTMASK_EN);
-}
 
 static void mtk_ufoe_start(struct device *dev)
 {
@@ -308,8 +283,8 @@ static const struct mtk_ddp_comp_funcs ddp_ovl = {
 };
 
 static const struct mtk_ddp_comp_funcs ddp_postmask = {
-       .clk_enable = mtk_ddp_clk_enable,
-       .clk_disable = mtk_ddp_clk_disable,
+       .clk_enable = mtk_postmask_clk_enable,
+       .clk_disable = mtk_postmask_clk_disable,
        .config = mtk_postmask_config,
        .start = mtk_postmask_start,
        .stop = mtk_postmask_stop,
@@ -510,6 +485,7 @@ int mtk_ddp_comp_init(struct device_node *node, struct 
mtk_ddp_comp *comp,
            type == MTK_DISP_GAMMA ||
            type == MTK_DISP_OVL ||
            type == MTK_DISP_OVL_2L ||
+           type == MTK_DISP_POSTMASK ||
            type == MTK_DISP_PWM ||
            type == MTK_DISP_RDMA ||
            type == MTK_DPI ||
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c 
b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 56ff8c57ef8f..6efb423ccc92 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -609,6 +609,7 @@ static int mtk_drm_probe(struct platform_device *pdev)
                    comp_type == MTK_DISP_GAMMA ||
                    comp_type == MTK_DISP_OVL ||
                    comp_type == MTK_DISP_OVL_2L ||
+                   comp_type == MTK_DISP_POSTMASK ||
                    comp_type == MTK_DISP_RDMA ||
                    comp_type == MTK_DPI ||
                    comp_type == MTK_DSI) {
@@ -709,6 +710,7 @@ static struct platform_driver * const mtk_drm_drivers[] = {
        &mtk_disp_color_driver,
        &mtk_disp_gamma_driver,
        &mtk_disp_ovl_driver,
+       &mtk_disp_postmask_driver,
        &mtk_disp_rdma_driver,
        &mtk_dpi_driver,
        &mtk_drm_platform_driver,
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h 
b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
index 3e7d1e6fbe01..c1e676aebe57 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
@@ -51,6 +51,7 @@ extern struct platform_driver mtk_disp_ccorr_driver;
 extern struct platform_driver mtk_disp_color_driver;
 extern struct platform_driver mtk_disp_gamma_driver;
 extern struct platform_driver mtk_disp_ovl_driver;
+extern struct platform_driver mtk_disp_postmask_driver;
 extern struct platform_driver mtk_disp_rdma_driver;
 extern struct platform_driver mtk_dpi_driver;
 extern struct platform_driver mtk_dsi_driver;
-- 
2.25.1

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