[PATCH v4 8/9] media: qcom: venus: add power domain enable logic for Venus cores

[Erikas Bitovtas]

Attach power domains for vdec and venc cores and power them up if a vdec
or venc session is started.

Signed-off-by: Erikas Bitovtas <xerikasxx@xxxxxxxxx>
---
 drivers/media/platform/qcom/venus/pm_helpers.c | 80 +++++++++++++++++++++++++-
 1 file changed, 78 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index f0269524ac70..c8f7f220c713 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -299,8 +299,22 @@ static int load_scale_v1(struct venus_inst *inst)
 
 static int core_get_v1(struct venus_core *core)
 {
+	struct device *dev = core->dev;
+	const struct venus_resources *res = core->res;
+	const struct dev_pm_domain_attach_data vcodec_data = {
+		.pd_names = res->vcodec_pmdomains,
+		.num_pd_names = res->vcodec_pmdomains_num,
+		.pd_flags = PD_FLAG_NO_DEV_LINK,
+	};
 	int ret;
 
+	if (res->vcodec_pmdomains) {
+		ret = dev_pm_domain_attach_list(dev, &vcodec_data,
+						&core->pmdomains);
+		if (ret < 0)
+			return ret;
+	}
+
 	ret = core_clks_get(core);
 	if (ret)
 		return ret;
@@ -319,12 +333,70 @@ static void core_put_v1(struct venus_core *core)
 static int core_power_v1(struct venus_core *core, int on)
 {
 	int ret = 0;
+	struct device *pd_dev = core->res->vcodec_pmdomains ?
+		core->pmdomains->pd_devs[0] : NULL;
 
-	if (on == POWER_ON)
+	if (on == POWER_ON) {
+		if (pd_dev) {
+			ret = pm_runtime_resume_and_get(pd_dev);
+			if (ret)
+				return ret;
+		}
 		ret = core_clks_enable(core);
-	else
+		if (ret) {
+			pm_runtime_put_sync(pd_dev);
+			return ret;
+		}
+	} else {
+		if (pd_dev)
+			pm_runtime_put_sync(pd_dev);
 		core_clks_disable(core);
+	}
 
+	return 0;
+}
+
+static int vcodec_get_v1(struct device *dev)
+{
+	struct venus_core *core = dev_get_drvdata(dev);
+
+	return vcodec_clks_get(core, core->dev, core->vcodec_clks,
+			       core->res->vcodec_clks);
+}
+
+static int vcodec_power_v1(struct device *dev, int on)
+{
+	struct venus_core *core = dev_get_drvdata(dev);
+	const struct venus_resources *res = core->res;
+	struct device *pd_dev;
+	int i = 1, ret;
+
+	if (on == POWER_ON) {
+		if (res->vcodec_pmdomains) {
+			for (; i < res->vcodec_pmdomains_num; i++) {
+				pd_dev = core->pmdomains->pd_devs[i];
+				ret = pm_runtime_resume_and_get(pd_dev);
+				if (ret)
+					goto err;
+			}
+		}
+
+		ret = vcodec_clks_enable(core, core->vcodec_clks);
+		if (ret)
+			goto err;
+	} else {
+		if (res->vcodec_pmdomains)
+			for (; i < res->vcodec_pmdomains_num; i++) {
+				pd_dev = core->pmdomains->pd_devs[i];
+				pm_runtime_put_sync(pd_dev);
+			}
+		vcodec_clks_disable(core, core->vcodec_clks);
+	}
+
+	return 0;
+err:
+	while (i-- > 1)
+		pm_runtime_put_sync(core->pmdomains->pd_devs[i]);
 	return ret;
 }
 
@@ -332,6 +404,10 @@ static const struct venus_pm_ops pm_ops_v1 = {
 	.core_get = core_get_v1,
 	.core_put = core_put_v1,
 	.core_power = core_power_v1,
+	.vdec_get = vcodec_get_v1,
+	.vdec_power = vcodec_power_v1,
+	.venc_get = vcodec_get_v1,
+	.venc_power = vcodec_power_v1,
 	.load_scale = load_scale_v1,
 };
 

-- 
2.54.0