Generalizes power and clock on/off interfaces to support different hardware.

Signed-off-by: Yunfei Dong <yunfei.d...@mediatek.com>
---
 .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c  |  6 +-
 .../platform/mtk-vcodec/mtk_vcodec_dec_hw.c   |  2 +-
 .../platform/mtk-vcodec/mtk_vcodec_dec_hw.h   |  4 +
 .../platform/mtk-vcodec/mtk_vcodec_dec_pm.c   | 76 ++++++++++++++--
 .../platform/mtk-vcodec/mtk_vcodec_dec_pm.h   |  8 +-
 .../platform/mtk-vcodec/mtk_vcodec_drv.h      |  2 +
 .../platform/mtk-vcodec/mtk_vcodec_util.c     | 87 ++++++++++++++++---
 .../platform/mtk-vcodec/mtk_vcodec_util.h     |  8 +-
 .../media/platform/mtk-vcodec/vdec_drv_if.c   | 21 ++---
 9 files changed, 174 insertions(+), 40 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c 
b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index ff70fa5b34e3..3ea1e96e0ec0 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -96,7 +96,7 @@ static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void 
*priv)
        void __iomem *vdec_misc_addr = dev->reg_base[VDEC_MISC] +
                                        VDEC_IRQ_CFG_REG;
 
-       ctx = mtk_vcodec_get_curr_ctx(dev);
+       ctx = mtk_vcodec_get_curr_ctx(dev, MTK_VDEC_CORE);
 
        /* check if HW active or not */
        cg_status = readl(dev->reg_base[0]);
@@ -245,7 +245,7 @@ static int fops_vcodec_open(struct file *file)
        mtk_vcodec_dec_set_default_params(ctx);
 
        if (v4l2_fh_is_singular(&ctx->fh)) {
-               ret = mtk_vcodec_dec_pw_on(&dev->pm);
+               ret = mtk_vcodec_dec_pw_on(dev, MTK_VDEC_LAT0);
                if (ret < 0)
                        goto err_load_fw;
                /*
@@ -306,7 +306,7 @@ static int fops_vcodec_release(struct file *file)
        mtk_vcodec_dec_release(ctx);
 
        if (v4l2_fh_is_singular(&ctx->fh))
-               mtk_vcodec_dec_pw_off(&dev->pm);
+               mtk_vcodec_dec_pw_off(dev, MTK_VDEC_LAT0);
        v4l2_fh_del(&ctx->fh);
        v4l2_fh_exit(&ctx->fh);
        v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c 
b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
index 0997a5a08156..78d25916395d 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
@@ -37,7 +37,7 @@ static irqreturn_t mtk_vdec_comp_irq_handler(int irq, void 
*priv)
        void __iomem *vdec_misc_addr = dev->reg_base[VDEC_COMP_MISC] +
                                        VDEC_IRQ_CFG_REG;
 
-       ctx = mtk_vcodec_get_curr_ctx(dev->master_dev);
+       ctx = mtk_vcodec_get_curr_ctx(dev->master_dev, dev->comp_idx);
 
        /* check if HW active or not */
        cg_status = readl(dev->reg_base[VDEC_COMP_SYS]);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h 
b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h
index 8d6e818a3474..0a4c2e6f5df2 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h
@@ -32,6 +32,8 @@ enum mtk_comp_hw_reg_idx {
  * @master_dev: master device
  * @reg_base: Mapped address of MTK Vcodec registers.
  *
+ * @curr_ctx: The context that is waiting for codec hardware
+ *
  * @dec_irq: decoder irq resource
  * @pm: power management control
  * @comp_idx: component index
@@ -41,6 +43,8 @@ struct mtk_vdec_comp_dev {
        struct mtk_vcodec_dev *master_dev;
        void __iomem *reg_base[VDEC_COMP_MAX];
 
+       struct mtk_vcodec_ctx *curr_ctx;
+
        int dec_irq;
        struct mtk_vcodec_pm pm;
        int comp_idx;
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c 
b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
index 20bd157a855c..183d4c4e36f0 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
@@ -5,11 +5,13 @@
  */
 
 #include <linux/clk.h>
+#include <linux/interrupt.h>
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/pm_runtime.h>
 #include <soc/mediatek/smi.h>
 
+#include "mtk_vcodec_dec_hw.h"
 #include "mtk_vcodec_dec_pm.h"
 #include "mtk_vcodec_util.h"
 
@@ -84,10 +86,23 @@ void mtk_vcodec_release_dec_pm(struct mtk_vcodec_pm *pm)
        put_device(pm->larbvdec);
 }
 
-int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm)
+int mtk_vcodec_dec_pw_on(struct mtk_vcodec_dev *vdec_dev, int comp_idx)
 {
+       struct mtk_vdec_comp_dev *comp_dev;
+       struct mtk_vcodec_pm *pm;
        int ret;
 
+       if (vdec_dev->vdec_pdata->is_comp_supported) {
+               comp_dev = mtk_vcodec_get_hw_dev(vdec_dev, comp_idx);
+               if (!comp_dev) {
+                       mtk_v4l2_err("Failed to get hw dev\n");
+                       return -EINVAL;
+               }
+               pm = &comp_dev->pm;
+       } else {
+               pm = &vdec_dev->pm;
+       }
+
        ret = pm_runtime_resume_and_get(pm->dev);
        if (ret)
                mtk_v4l2_err("pm_runtime_resume_and_get fail %d", ret);
@@ -95,20 +110,49 @@ int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm)
        return ret;
 }
 
-void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm)
+void mtk_vcodec_dec_pw_off(struct mtk_vcodec_dev *vdec_dev, int comp_idx)
 {
+       struct mtk_vdec_comp_dev *comp_dev;
+       struct mtk_vcodec_pm *pm;
        int ret;
 
+       if (vdec_dev->vdec_pdata->is_comp_supported) {
+               comp_dev = mtk_vcodec_get_hw_dev(vdec_dev, comp_idx);
+               if (!comp_dev) {
+                       mtk_v4l2_err("Failed to get hw dev\n");
+                       return;
+               }
+               pm = &comp_dev->pm;
+       } else {
+               pm = &vdec_dev->pm;
+       }
+
        ret = pm_runtime_put_sync(pm->dev);
        if (ret)
                mtk_v4l2_err("pm_runtime_put_sync fail %d", ret);
 }
 
-void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm)
+void mtk_vcodec_dec_clock_on(struct mtk_vcodec_dev *vdec_dev, int comp_idx)
 {
-       struct mtk_vcodec_clk *dec_clk = &pm->vdec_clk;
-       int ret, i = 0;
+       struct mtk_vdec_comp_dev *comp_dev;
+       struct mtk_vcodec_pm *pm;
+       struct mtk_vcodec_clk *dec_clk;
+       int ret, i;
+
+       if (vdec_dev->vdec_pdata->is_comp_supported) {
+               comp_dev = mtk_vcodec_get_hw_dev(vdec_dev, comp_idx);
+               if (!comp_dev) {
+                       mtk_v4l2_err("Failed to get hw dev\n");
+                       return;
+               }
+               pm = &comp_dev->pm;
+               enable_irq(comp_dev->dec_irq);
+       } else {
+               pm = &vdec_dev->pm;
+               enable_irq(vdec_dev->dec_irq);
+       }
 
+       dec_clk = &pm->vdec_clk;
        for (i = 0; i < dec_clk->clk_num; i++) {
                ret = clk_prepare_enable(dec_clk->clk_info[i].vcodec_clk);
                if (ret) {
@@ -130,11 +174,27 @@ void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm)
                clk_disable_unprepare(dec_clk->clk_info[i].vcodec_clk);
 }
 
-void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm)
+void mtk_vcodec_dec_clock_off(struct mtk_vcodec_dev *vdec_dev, int comp_idx)
 {
-       struct mtk_vcodec_clk *dec_clk = &pm->vdec_clk;
-       int i = 0;
+       struct mtk_vdec_comp_dev *comp_dev;
+       struct mtk_vcodec_pm *pm;
+       struct mtk_vcodec_clk *dec_clk;
+       int i;
 
+       if (vdec_dev->vdec_pdata->is_comp_supported) {
+               comp_dev = mtk_vcodec_get_hw_dev(vdec_dev, comp_idx);
+               if (!comp_dev) {
+                       mtk_v4l2_err("Failed to get hw dev\n");
+                       return;
+               }
+               pm = &comp_dev->pm;
+               disable_irq(comp_dev->dec_irq);
+       } else {
+               pm = &vdec_dev->pm;
+               disable_irq(vdec_dev->dec_irq);
+       }
+
+       dec_clk = &pm->vdec_clk;
        mtk_smi_larb_put(pm->larbvdec);
        for (i = dec_clk->clk_num - 1; i >= 0; i--)
                clk_disable_unprepare(dec_clk->clk_info[i].vcodec_clk);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h 
b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
index a3df6aef6cb9..698750572b57 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
@@ -13,9 +13,9 @@ int mtk_vcodec_init_dec_pm(struct platform_device *pdev,
        struct mtk_vcodec_pm *pm);
 void mtk_vcodec_release_dec_pm(struct mtk_vcodec_pm *pm);
 
-int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm);
-void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm);
-void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm);
-void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm);
+int mtk_vcodec_dec_pw_on(struct mtk_vcodec_dev *vdec_dev, int comp_idx);
+void mtk_vcodec_dec_pw_off(struct mtk_vcodec_dev *vdec_dev, int comp_idx);
+void mtk_vcodec_dec_clock_on(struct mtk_vcodec_dev *vdec_dev, int comp_idx);
+void mtk_vcodec_dec_clock_off(struct mtk_vcodec_dev *vdec_dev, int comp_idx);
 
 #endif /* _MTK_VCODEC_DEC_PM_H_ */
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h 
b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index ab401b2db30e..95c82cb4e568 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -284,6 +284,7 @@ struct vdec_pic_info {
  * @decoded_frame_cnt: number of decoded frames
  * @lock: protect variables accessed by V4L2 threads and worker thread such as
  *       mtk_video_dec_buf.
+ * @hw_id: hardware index used to identify different hardware.
  *
  * @msg_queue: msg queue used to store lat buffer information.
  */
@@ -328,6 +329,7 @@ struct mtk_vcodec_ctx {
 
        int decoded_frame_cnt;
        struct mutex lock;
+       int hw_id;
 
        struct vdec_msg_queue msg_queue;
 };
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c 
b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c
index ac5973b6735f..511b75e49fe7 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c
@@ -6,7 +6,10 @@
 */
 
 #include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
+#include "mtk_vcodec_dec_hw.h"
 #include "mtk_vcodec_drv.h"
 #include "mtk_vcodec_util.h"
 
@@ -81,25 +84,87 @@ void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data,
 }
 EXPORT_SYMBOL(mtk_vcodec_mem_free);
 
-void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *dev,
-       struct mtk_vcodec_ctx *ctx)
+void *mtk_vcodec_get_hw_dev(struct mtk_vcodec_dev *dev, int comp_idx)
 {
-       unsigned long flags;
+       struct platform_device *hw_pdev;
+       struct device_node *node;
+       struct mtk_vdec_comp_dev *master_dev;
+
+       if (comp_idx >= MTK_VDEC_HW_MAX || comp_idx < 0) {
+               mtk_v4l2_err("Comp idx is out of range:%d", comp_idx);
+               return NULL;
+       }
+
+       if (dev->comp_dev[comp_idx])
+               return dev->comp_dev[comp_idx];
+
+       node = dev->component_node[comp_idx];
+       if (!node) {
+               mtk_v4l2_err("Get lat node fail:%d", comp_idx);
+               return NULL;
+       }
+
+       hw_pdev = of_find_device_by_node(node);
+       of_node_put(node);
+
+       if (WARN_ON(!hw_pdev)) {
+               mtk_v4l2_err("Get hw id(%d) node fail", comp_idx);
+               return NULL;
+       }
+
+       master_dev = platform_get_drvdata(hw_pdev);
+       if (!master_dev) {
+               mtk_v4l2_err("Get hw id(%d) pdev fail", comp_idx);
+               return NULL;
+       }
 
-       spin_lock_irqsave(&dev->irqlock, flags);
-       dev->curr_ctx = ctx;
-       spin_unlock_irqrestore(&dev->irqlock, flags);
+       dev->comp_dev[master_dev->comp_idx] = master_dev;
+       return master_dev;
+}
+EXPORT_SYMBOL(mtk_vcodec_get_hw_dev);
+
+void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *vdec_dev,
+       struct mtk_vcodec_ctx *ctx, int comp_idx)
+{
+       unsigned long flags;
+       struct mtk_vdec_comp_dev *comp_dev;
+
+       spin_lock_irqsave(&vdec_dev->irqlock, flags);
+       if (vdec_dev->vdec_pdata->is_comp_supported) {
+               comp_dev = mtk_vcodec_get_hw_dev(vdec_dev, comp_idx);
+               if (!comp_dev) {
+                       mtk_v4l2_err("Failed to get hw dev");
+                       spin_unlock_irqrestore(&vdec_dev->irqlock, flags);
+                       return;
+               }
+               comp_dev->curr_ctx = ctx;
+       } else {
+               vdec_dev->curr_ctx = ctx;
+       }
+       spin_unlock_irqrestore(&vdec_dev->irqlock, flags);
 }
 EXPORT_SYMBOL(mtk_vcodec_set_curr_ctx);
 
-struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *dev)
+struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *vdec_dev,
+       unsigned int comp_idx)
 {
        unsigned long flags;
        struct mtk_vcodec_ctx *ctx;
-
-       spin_lock_irqsave(&dev->irqlock, flags);
-       ctx = dev->curr_ctx;
-       spin_unlock_irqrestore(&dev->irqlock, flags);
+       struct mtk_vdec_comp_dev *comp_dev;
+
+       spin_lock_irqsave(&vdec_dev->irqlock, flags);
+       if (vdec_dev->vdec_pdata->is_comp_supported) {
+               comp_dev = mtk_vcodec_get_hw_dev(vdec_dev, comp_idx);
+               if (!comp_dev) {
+                       mtk_v4l2_err("Failed to get hw dev");
+                       spin_unlock_irqrestore(&vdec_dev->irqlock, flags);
+                       return NULL;
+               }
+               ctx = comp_dev->curr_ctx;
+       } else {
+               ctx = vdec_dev->curr_ctx;
+       }
+       spin_unlock_irqrestore(&vdec_dev->irqlock, flags);
        return ctx;
 }
 EXPORT_SYMBOL(mtk_vcodec_get_curr_ctx);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.h 
b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.h
index b999d7b84ed1..4cb0fc60c94f 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.h
@@ -79,8 +79,10 @@ int mtk_vcodec_mem_alloc(struct mtk_vcodec_ctx *data,
                                struct mtk_vcodec_mem *mem);
 void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data,
                                struct mtk_vcodec_mem *mem);
-void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *dev,
-       struct mtk_vcodec_ctx *ctx);
-struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *dev);
+void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *vdec_dev,
+                               struct mtk_vcodec_ctx *ctx, int comp_idx);
+struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *vdec_dev,
+       unsigned int comp_idx);
+void *mtk_vcodec_get_hw_dev(struct mtk_vcodec_dev *dev, int comp_idx);
 
 #endif /* _MTK_VCODEC_UTIL_H_ */
diff --git a/drivers/media/platform/mtk-vcodec/vdec_drv_if.c 
b/drivers/media/platform/mtk-vcodec/vdec_drv_if.c
index 42008243ceac..05a5b240e906 100644
--- a/drivers/media/platform/mtk-vcodec/vdec_drv_if.c
+++ b/drivers/media/platform/mtk-vcodec/vdec_drv_if.c
@@ -24,21 +24,24 @@ int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int 
fourcc)
                break;
        case V4L2_PIX_FMT_H264:
                ctx->dec_if = &vdec_h264_if;
+               ctx->hw_id = MTK_VDEC_CORE;
                break;
        case V4L2_PIX_FMT_VP8:
                ctx->dec_if = &vdec_vp8_if;
+               ctx->hw_id = MTK_VDEC_CORE;
                break;
        case V4L2_PIX_FMT_VP9:
                ctx->dec_if = &vdec_vp9_if;
+               ctx->hw_id = MTK_VDEC_CORE;
                break;
        default:
                return -EINVAL;
        }
 
        mtk_vdec_lock(ctx);
-       mtk_vcodec_dec_clock_on(&ctx->dev->pm);
+       mtk_vcodec_dec_clock_on(ctx->dev, ctx->hw_id);
        ret = ctx->dec_if->init(ctx);
-       mtk_vcodec_dec_clock_off(&ctx->dev->pm);
+       mtk_vcodec_dec_clock_off(ctx->dev, ctx->hw_id);
        mtk_vdec_unlock(ctx);
 
        return ret;
@@ -69,13 +72,11 @@ int vdec_if_decode(struct mtk_vcodec_ctx *ctx, struct 
mtk_vcodec_mem *bs,
 
        mtk_vdec_lock(ctx);
 
-       mtk_vcodec_set_curr_ctx(ctx->dev, ctx);
-       mtk_vcodec_dec_clock_on(&ctx->dev->pm);
-       enable_irq(ctx->dev->dec_irq);
+       mtk_vcodec_set_curr_ctx(ctx->dev, ctx, ctx->hw_id);
+       mtk_vcodec_dec_clock_on(ctx->dev, ctx->hw_id);
        ret = ctx->dec_if->decode(ctx->drv_handle, bs, fb, res_chg);
-       disable_irq(ctx->dev->dec_irq);
-       mtk_vcodec_dec_clock_off(&ctx->dev->pm);
-       mtk_vcodec_set_curr_ctx(ctx->dev, NULL);
+       mtk_vcodec_dec_clock_off(ctx->dev, ctx->hw_id);
+       mtk_vcodec_set_curr_ctx(ctx->dev, NULL, ctx->hw_id);
 
        mtk_vdec_unlock(ctx);
 
@@ -103,9 +104,9 @@ void vdec_if_deinit(struct mtk_vcodec_ctx *ctx)
                return;
 
        mtk_vdec_lock(ctx);
-       mtk_vcodec_dec_clock_on(&ctx->dev->pm);
+       mtk_vcodec_dec_clock_on(ctx->dev, ctx->hw_id);
        ctx->dec_if->deinit(ctx->drv_handle);
-       mtk_vcodec_dec_clock_off(&ctx->dev->pm);
+       mtk_vcodec_dec_clock_off(ctx->dev, ctx->hw_id);
        mtk_vdec_unlock(ctx);
 
        ctx->drv_handle = NULL;
-- 
2.25.1

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