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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Fri, 09 Feb 2024 22:10:02 +0100
Subject: [PATCH v2 18/20] media: venus: pm_helpers: Commonize vdec_get()
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Message-Id: <20230911-topic-mars-v2-18-3dac84b88c4b@linaro.org>
References: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
In-Reply-To: <20230911-topic-mars-v2-0-3dac84b88c4b@linaro.org>
To: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>, 
 Vikash Garodia <quic_vgarodia@quicinc.com>, 
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>, 
 Andy Gross <agross@kernel.org>, Bjorn Andersson <andersson@kernel.org>, 
 Mauro Carvalho Chehab <mchehab@kernel.org>, 
 Dikshita Agarwal <quic_dikshita@quicinc.com>, 
 Philipp Zabel <p.zabel@pengutronix.de>
Cc: Marijn Suijten <marijn.suijten@somainline.org>, 
 Stanimir Varbanov <stanimir.varbanov@linaro.org>, 
 Mauro Carvalho Chehab <mchehab+huawei@kernel.org>, 
 linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, 
 linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>

This function can be very easily commonized between the supported gens.
Do so!

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/media/platform/qcom/venus/pm_helpers.c | 22 ++--------------------
 drivers/media/platform/qcom/venus/pm_helpers.h |  2 +-
 drivers/media/platform/qcom/venus/vdec.c       |  9 +++++++--
 3 files changed, 10 insertions(+), 23 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
index 1cbcffbc29af..cf0794acf5d0 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.c
+++ b/drivers/media/platform/qcom/venus/pm_helpers.c
@@ -125,7 +125,7 @@ static int core_clks_set_rate(struct venus_core *core, unsigned long freq)
 	return 0;
 }
 
-static int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id)
+int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id)
 {
 	char buf[13] = { 0 }; /* vcodecX_core\0 */
 
@@ -158,6 +158,7 @@ static int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(vcodec_clks_get);
 
 static int vcodec_clks_enable(struct venus_core *core, u8 id)
 {
@@ -345,13 +346,6 @@ vcodec_control_v3(struct venus_core *core, u32 session_type, bool enable)
 		writel(1, ctrl);
 }
 
-static int vdec_get_v3(struct device *dev)
-{
-	struct venus_core *core = dev_get_drvdata(dev);
-
-	return vcodec_clks_get(core, dev, 0);
-}
-
 static int vdec_power_v3(struct device *dev, int on)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
@@ -394,7 +388,6 @@ static int venc_power_v3(struct device *dev, int on)
 }
 
 static const struct venus_pm_ops pm_ops_v3 = {
-	.vdec_get = vdec_get_v3,
 	.vdec_power = vdec_power_v3,
 	.venc_get = venc_get_v3,
 	.venc_power = venc_power_v3,
@@ -759,16 +752,6 @@ static int coreid_power_v4(struct venus_inst *inst, int on)
 	return ret;
 }
 
-static int vdec_get_v4(struct device *dev)
-{
-	struct venus_core *core = dev_get_drvdata(dev);
-
-	if (!legacy_binding)
-		return 0;
-
-	return vcodec_clks_get(core, dev, 0);
-}
-
 static void vdec_put_v4(struct device *dev)
 {
 	struct venus_core *core = dev_get_drvdata(dev);
@@ -1107,7 +1090,6 @@ static int load_scale_v4(struct venus_inst *inst)
 }
 
 static const struct venus_pm_ops pm_ops_v4 = {
-	.vdec_get = vdec_get_v4,
 	.vdec_put = vdec_put_v4,
 	.vdec_power = vdec_power_v4,
 	.venc_get = venc_get_v4,
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.h b/drivers/media/platform/qcom/venus/pm_helpers.h
index 7a55a55029f3..4afc57dac865 100644
--- a/drivers/media/platform/qcom/venus/pm_helpers.h
+++ b/drivers/media/platform/qcom/venus/pm_helpers.h
@@ -10,7 +10,6 @@ struct venus_core;
 #define POWER_OFF	0
 
 struct venus_pm_ops {
-	int (*vdec_get)(struct device *dev);
 	void (*vdec_put)(struct device *dev);
 	int (*vdec_power)(struct device *dev, int on);
 
@@ -27,6 +26,7 @@ const struct venus_pm_ops *venus_pm_get(enum hfi_version version);
 int venus_core_power(struct venus_core *core, int on);
 void vcodec_domains_put(struct venus_core *core);
 int venus_get_resources(struct venus_core *core);
+int vcodec_clks_get(struct venus_core *core, struct device *dev, u8 id);
 
 static inline int venus_pm_load_scale(struct venus_inst *inst)
 {
diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
index 29130a9441e7..d127311100cd 100644
--- a/drivers/media/platform/qcom/venus/vdec.c
+++ b/drivers/media/platform/qcom/venus/vdec.c
@@ -1788,8 +1788,13 @@ static int vdec_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, core);
 
-	if (core->pm_ops->vdec_get) {
-		ret = core->pm_ops->vdec_get(dev);
+	/*
+	 * If the vcodec core clock is missing by now, it either doesn't exist
+	 * (8916) or deprecated bindings with pre-assigned core functions and
+	 * resources under the decoder node are in use.
+	 */
+	if (!core->vcodec_core_clks[0]) {
+		ret = vcodec_clks_get(core, dev, 0);
 		if (ret)
 			return ret;
 	}

-- 
2.43.0