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From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
To: Konrad Dybcio <konrad.dybcio@linaro.org>,
	hverkuil-cisco@xs4all.nl, laurent.pinchart@ideasonboard.com,
	rfoss@kernel.org, todor.too@gmail.com, agross@kernel.org,
	andersson@kernel.org, mchehab@kernel.org
Cc: linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/4] media: qcom: camss: Use common VFE pm_domain_on/pm_domain_off where applicable
Date: Wed, 25 Oct 2023 11:40:04 +0100	[thread overview]
Message-ID: <fdd775e5-1e43-4f65-b444-da6b83e3df5b@linaro.org> (raw)
In-Reply-To: <d0d30b6b-3664-4531-a71f-6faec3330d2c@linaro.org>

On 25/10/2023 10:18, Konrad Dybcio wrote:
>> educe the pattern down to a common callback. VFE 4.1 is a special case
>> which to me also indicates that it is worthwhile maintaining an 
>> indirection
>> for the vfe_pm_domain_{on|off} for now.
> Are there issues when powering it off like all the others?

4.1 doesn't have a VFE power-domain just a top level controller PD, 
however I think a blank callback is neater than

if (vfe->pm_domain_on) {
     vfe->pd_domain_on();
}

its just vfe->pm_domain_on(); at the cost of 1 or 2 instructions for 
indirection.

---
bod

  reply	other threads:[~2023-10-25 10:40 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-24 22:42 [PATCH 0/4] media: qcom: camss: Introduce support for named power-domains Bryan O'Donoghue
2023-10-24 22:42 ` [PATCH 1/4] media: qcom: camss: Convert to per-VFE pointer for power-domain linkages Bryan O'Donoghue
2023-10-25  9:16   ` Konrad Dybcio
2023-10-25 10:41     ` Bryan O'Donoghue
2023-10-24 22:42 ` [PATCH 2/4] media: qcom: camss: Use common VFE pm_domain_on/pm_domain_off where applicable Bryan O'Donoghue
2023-10-25  9:18   ` Konrad Dybcio
2023-10-25 10:40     ` Bryan O'Donoghue [this message]
2023-10-26 19:01       ` Konrad Dybcio
2023-10-24 22:42 ` [PATCH 3/4] media: qcom: camss: Move VFE power-domain specifics into vfe.c Bryan O'Donoghue
2023-10-24 22:42 ` [PATCH 4/4] media: qcom: camss: Add support for named power-domains Bryan O'Donoghue

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