linux-kernel - Re: [PATCH 3/3] media: iris: Add support for SM8750 (VPU v3.5)

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Message-ID: <f06353e5-fec6-4287-9766-00b8eed89bec@kernel.org>
Date: Thu, 17 Jul 2025 11:49:03 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Dikshita Agarwal <quic_dikshita@...cinc.com>,
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
 Vikash Garodia <quic_vgarodia@...cinc.com>,
 Abhinav Kumar <abhinav.kumar@...ux.dev>,
 Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
 Mauro Carvalho Chehab <mchehab@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Philipp Zabel <p.zabel@...gutronix.de>
Cc: linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] media: iris: Add support for SM8750 (VPU v3.5)

On 17/07/2025 09:37, Dikshita Agarwal wrote:
> 
> 
>> mostly based on downstream sources. I think the hardware just did not
>> boot up without it.
> 
> 
> That shouldn’t be the case. The downstream design is different, which is
> why the driver requires the above code to move the GDSC to software control
> before enabling the clock. With HW_CTRL_TRIGGER, this step isn’t needed, so
> the above code is unnecessary.

Ack.

Best regards,
Krzysztof