linux-kernel - [PATCH v4 66/79] media: venus: use pm_runtime_resume_and

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Message-Id: <1daefd9339fd957a0199e0fe18033014945239a1.1619621413.git.mchehab+huawei@kernel.org>
Date:   Wed, 28 Apr 2021 16:52:27 +0200
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     linuxarm@...wei.com, mauro.chehab@...wei.com,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org
Subject: [PATCH v4 66/79] media: venus: use pm_runtime_resume_and_get()

Commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter")
added pm_runtime_resume_and_get() in order to automatically handle
dev->power.usage_count decrement on errors.

Use the new API, in order to cleanup the error check logic.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
 drivers/media/platform/qcom/venus/core.c      | 30 +++++++++----------
 .../media/platform/qcom/venus/pm_helpers.c    | 10 +++----
 2 files changed, 18 insertions(+), 22 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
index c80c27c87ccc..aa359f8e82c5 100644
--- a/drivers/media/platform/qcom/venus/core.c
+++ b/drivers/media/platform/qcom/venus/core.c
@@ -84,11 +84,9 @@ static void venus_sys_error_handler(struct work_struct *work)
 			container_of(work, struct venus_core, work.work);
 	int ret = 0;
 
-	ret = pm_runtime_get_sync(core->dev);
-	if (WARN_ON(ret < 0)) {
-		pm_runtime_put_noidle(core->dev);
+	ret = pm_runtime_resume_and_get(core->dev);
+	if (WARN_ON(ret < 0))
 		return;
-	}
 
 	hfi_core_deinit(core, true);
 
@@ -110,11 +108,9 @@ static void venus_sys_error_handler(struct work_struct *work)
 
 	hfi_reinit(core);
 
-	ret = pm_runtime_get_sync(core->dev);
-	if (WARN_ON(ret < 0)) {
-		pm_runtime_put_noidle(core->dev);
+	ret = pm_runtime_resume_and_get(core->dev);
+	if (WARN_ON(ret < 0))
 		return;
-	}
 
 	ret = venus_boot(core);
 	ret |= hfi_core_resume(core, true);
@@ -313,21 +309,21 @@ static int venus_probe(struct platform_device *pdev)
 
 	pm_runtime_enable(dev);
 
-	ret = pm_runtime_get_sync(dev);
+	ret = pm_runtime_resume_and_get(dev);
 	if (ret < 0)
 		goto err_runtime_disable;
 
 	ret = of_platform_populate(dev->of_node, NULL, NULL, dev);
 	if (ret)
-		goto err_runtime_disable;
+		goto err_pm;
 
 	ret = venus_firmware_init(core);
 	if (ret)
-		goto err_runtime_disable;
+		goto err_pm;
 
 	ret = venus_boot(core);
 	if (ret)
-		goto err_runtime_disable;
+		goto err_pm;
 
 	ret = hfi_core_resume(core, true);
 	if (ret)
@@ -359,8 +355,9 @@ static int venus_probe(struct platform_device *pdev)
 	v4l2_device_unregister(&core->v4l2_dev);
 err_venus_shutdown:
 	venus_shutdown(core);
-err_runtime_disable:
+err_pm:
 	pm_runtime_put_noidle(dev);
+err_runtime_disable:
 	pm_runtime_set_suspended(dev);
 	pm_runtime_disable(dev);
 	hfi_destroy(core);
@@ -379,7 +376,7 @@ static int venus_remove(struct platform_device *pdev)
 	struct device *dev = core->dev;
 	int ret;
 
-	ret = pm_runtime_get_sync(dev);
+	ret = pm_runtime_resume_and_get(dev);
 	WARN_ON(ret < 0);
 
 	ret = hfi_core_deinit(core, true);
@@ -390,7 +387,8 @@ static int venus_remove(struct platform_device *pdev)
 
 	venus_firmware_deinit(core);
 
-	pm_runtime_put_sync(dev);
+	if (ret >= 0)
+		pm_runtime_put_sync(dev);
 	pm_runtime_disable(dev);
 
 	if (pm_ops->core_put)
@@ -411,7 +409,7 @@ static void venus_core_shutdown(struct platform_device *pdev)
 {
 	struct venus_core *core = platform_get_drvdata(pdev);
 
-	pm_runtime_get_sync(core->dev);
+	pm_runtime_resume_and_get(core->dev);
 	venus_shutdown(core);
 	venus_firmware_deinit(core);
 	pm_runtime_put_sync(core->dev);
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index c7e1ebec47ee..9e32ec866af7 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -486,7 +486,7 @@ static int poweron_coreid(struct venus_core *core, unsigned int coreid_mask)
 	int ret;
 
 	if (coreid_mask & VIDC_CORE_ID_1) {
-		ret = pm_runtime_get_sync(core->pmdomains[1]);
+		ret = pm_runtime_resume_and_get(core->pmdomains[1]);
 		if (ret < 0)
 			return ret;
 
@@ -504,7 +504,7 @@ static int poweron_coreid(struct venus_core *core, unsigned int coreid_mask)
 	}
 
 	if (coreid_mask & VIDC_CORE_ID_2) {
-		ret = pm_runtime_get_sync(core->pmdomains[2]);
+		ret = pm_runtime_resume_and_get(core->pmdomains[2]);
 		if (ret < 0)
 			return ret;
 
@@ -990,11 +990,9 @@ static int core_power_v4(struct venus_core *core, int on)
 
 	if (on == POWER_ON) {
 		if (pmctrl) {
-			ret = pm_runtime_get_sync(pmctrl);
-			if (ret < 0) {
-				pm_runtime_put_noidle(pmctrl);
+			ret = pm_runtime_resume_and_get(pmctrl);
+			if (ret < 0)
 				return ret;
-			}
 		}
 
 		ret = core_resets_reset(core);
-- 
2.30.2