linux-kernel - Re: [PATCH v2 14/20] media: venus: pm_helpers: Remove pm_ops->core

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Message-ID: <ec239f69-6ace-c4a4-409c-771f1d24ce81@quicinc.com>
Date: Mon, 4 Mar 2024 12:27:30 +0530
From: Dikshita Agarwal <quic_dikshita@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@...aro.org>,
        Stanimir Varbanov
	<stanimir.k.varbanov@...il.com>,
        Vikash Garodia <quic_vgarodia@...cinc.com>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Andy Gross
	<agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        "Mauro Carvalho
 Chehab" <mchehab@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>
CC: Marijn Suijten <marijn.suijten@...ainline.org>,
        Stanimir Varbanov
	<stanimir.varbanov@...aro.org>,
        Mauro Carvalho Chehab
	<mchehab+huawei@...nel.org>,
        <linux-media@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 14/20] media: venus: pm_helpers: Remove
 pm_ops->core_put



On 2/10/2024 2:39 AM, Konrad Dybcio wrote:
> Without an OPP table and with vcodec_pmdomains_num (so, v1, v3 and
> sdm845_legacy targets), core_put_v4 is a NOP, jut like core_put_v1.
> Unify them!
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c       |  8 +++-----
>  drivers/media/platform/qcom/venus/pm_helpers.c | 17 +----------------
>  drivers/media/platform/qcom/venus/pm_helpers.h |  2 +-
>  3 files changed, 5 insertions(+), 22 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 9bfd2a30084b..666adc5aac38 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -426,15 +426,14 @@ static int venus_probe(struct platform_device *pdev)
>  err_core_deinit:
>  	hfi_core_deinit(core, false);
>  err_core_put:
> -	if (core->pm_ops->core_put)
> -		core->pm_ops->core_put(core);
> +	vcodec_domains_put(core);
> +
>  	return ret;
>  }
>  
>  static void venus_remove(struct platform_device *pdev)
>  {
>  	struct venus_core *core = platform_get_drvdata(pdev);
> -	const struct venus_pm_ops *pm_ops = core->pm_ops;
>  	struct device *dev = core->dev;
>  	int ret;
>  
> @@ -452,8 +451,7 @@ static void venus_remove(struct platform_device *pdev)
>  	pm_runtime_put_sync(dev);
>  	pm_runtime_disable(dev);
>  
> -	if (pm_ops->core_put)
> -		pm_ops->core_put(core);
> +	vcodec_domains_put(core);
>  
>  	v4l2_device_unregister(&core->v4l2_dev);
>  
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c
> index 6f6de9ef1c6c..32f9ccfa9d8a 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.c
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c
> @@ -318,13 +318,8 @@ static int load_scale_v1(struct venus_inst *inst)
>  	return ret;
>  }
>  
> -static void core_put_v1(struct venus_core *core)
> -{
> -}
> -
>  static const struct venus_pm_ops pm_ops_v1 = {
>  	.core_get = venus_clks_get,
> -	.core_put = core_put_v1,
>  	.load_scale = load_scale_v1,
>  };
>  
> @@ -396,7 +391,6 @@ static int venc_power_v3(struct device *dev, int on)
>  
>  static const struct venus_pm_ops pm_ops_v3 = {
>  	.core_get = venus_clks_get,
> -	.core_put = core_put_v1,
>  	.vdec_get = vdec_get_v3,
>  	.vdec_power = vdec_power_v3,
>  	.venc_get = venc_get_v3,
> @@ -893,7 +887,7 @@ static int vcodec_domains_get(struct venus_core *core)
>  	return ret;
>  }
>  
> -static void vcodec_domains_put(struct venus_core *core)
> +void vcodec_domains_put(struct venus_core *core)
>  {
>  	dev_pm_domain_detach_list(core->pmdomains);
>  
what is the base of this change?
I don't see dev_pm_domain_detach_list in mainline code.
Am I missing anything here?
> @@ -968,14 +962,6 @@ static int core_get_v4(struct venus_core *core)
>  	return 0;
>  }
>  
> -static void core_put_v4(struct venus_core *core)
> -{
> -	if (legacy_binding)
> -		return;
> -
> -	vcodec_domains_put(core);
> -}
> -
>  int venus_core_power(struct venus_core *core, int on)
>  {
>  	struct device *dev = core->dev;
> @@ -1123,7 +1109,6 @@ static int load_scale_v4(struct venus_inst *inst)
>  
>  static const struct venus_pm_ops pm_ops_v4 = {
>  	.core_get = core_get_v4,
> -	.core_put = core_put_v4,
>  	.vdec_get = vdec_get_v4,
>  	.vdec_put = vdec_put_v4,
>  	.vdec_power = vdec_power_v4,
> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.h b/drivers/media/platform/qcom/venus/pm_helpers.h
> index 77db940a265c..3014b39aa6e3 100644
> --- a/drivers/media/platform/qcom/venus/pm_helpers.h
> +++ b/drivers/media/platform/qcom/venus/pm_helpers.h
> @@ -11,7 +11,6 @@ struct venus_core;
>  
>  struct venus_pm_ops {
>  	int (*core_get)(struct venus_core *core);
> -	void (*core_put)(struct venus_core *core);
>  
>  	int (*vdec_get)(struct device *dev);
>  	void (*vdec_put)(struct device *dev);
> @@ -28,6 +27,7 @@ struct venus_pm_ops {
>  
>  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);
>  
>  static inline int venus_pm_load_scale(struct venus_inst *inst)
>  {
>