rockchip/vcodec: add pm runtime operation

Change-Id: Id7ec05cd50ae33081bcbc93a560e63153af15c4b
Signed-off-by: Alpha Lin <alpha.lin@rock-chips.com>

diff --git a/drivers/video/rockchip/vcodec/vcodec_service.c b/drivers/video/rockchip/vcodec/vcodec_service.c
index 68aeeee8d7326aa4514b8757d2f41046488f8b49..ebd55ff0612af35b63f7886f14d7f37bd410988a 100644 (file)
--- a/drivers/video/rockchip/vcodec/vcodec_service.c
+++ b/drivers/video/rockchip/vcodec/vcodec_service.c
@@ -37,6 +37,7 @@
 #include <linux/mfd/syscon.h>
 #include <linux/uaccess.h>
 #include <linux/debugfs.h>
+#include <linux/pm_runtime.h>
 
 #include <linux/rockchip/cpu.h>
 #include <linux/rockchip/cru.h>
@@ -760,6 +761,7 @@ static void vpu_service_power_off(struct vpu_service_info *pservice)
                if (pservice->clk_cabac)
                        clk_disable_unprepare(pservice->clk_cabac);
 #endif
+       pm_runtime_put(pservice->dev);
 
        atomic_add(1, &pservice->power_off_cnt);
        wake_unlock(&pservice->wake_lock);
@@ -822,6 +824,7 @@ static void vpu_service_power_on(struct vpu_service_info *pservice)
        if (pservice->pd_video)
                clk_prepare_enable(pservice->pd_video);
 #endif
+       pm_runtime_get_sync(pservice->dev);
 
        udelay(5);
        atomic_add(1, &pservice->power_on_cnt);
@@ -2228,6 +2231,8 @@ static int vcodec_subdev_probe(struct platform_device *pdev,
 
        clear_bit(MMU_ACTIVATED, &data->state);
        vcodec_enter_mode(data);
+
+       vpu_service_power_on(pservice);
        ret = vpu_service_check_hw(data);
        if (ret < 0) {
                vpu_err("error: hw info check faild\n");
@@ -2499,8 +2504,6 @@ static int vcodec_probe(struct platform_device *pdev)
        if (0 > vpu_get_clk(pservice))
                goto err;
 
-       vpu_service_power_on(pservice);
-
        if (of_property_read_bool(np, "reg")) {
                res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
@@ -2515,6 +2518,8 @@ static int vcodec_probe(struct platform_device *pdev)
                pservice->reg_base = 0;
        }
 
+       pm_runtime_enable(dev);
+
        if (of_property_read_bool(np, "subcnt")) {
                for (i = 0; i < pservice->subcnt; i++) {
                        struct device_node *sub_np;
@@ -2549,6 +2554,9 @@ static int vcodec_remove(struct platform_device *pdev)
        struct vpu_subdev_data *data = platform_get_drvdata(pdev);
 
        vcodec_subdev_remove(data);
+
+       pm_runtime_disable(data->pservice->dev);
+
        return 0;
 }