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[37.0.167.201]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5a40a272e14sm1416433e87.3.2026.04.16.10.00.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 16 Apr 2026 10:00:53 -0700 (PDT) Message-ID: <6b8f767b-98c3-4e31-beb3-20988f764359@gmail.com> Date: Thu, 16 Apr 2026 20:00:49 +0300 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RFC 00/10] media: qcom: venus: add MSM8939 support To: Konrad Dybcio , Bryan O'Donoghue , Vikash Garodia , Dikshita Agarwal , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , =?UTF-8?Q?Andr=C3=A9_Apitzsch?= , Bjorn Andersson , Konrad Dybcio , Michael Turquette , Stephen Boyd Cc: linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org References: <20260416-msm8939-venus-rfc-v1-0-a09fcf2c23df@gmail.com> Content-Language: en-US From: Erikas Bitovtas In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit >> 3. MSM8939 supports HEVC decoding, however, as the patchset is written >> now, it does not work. It can be enabled, however, it will result in >> breakage of Venus for faulty MSM8916 firmwares, because the code >> disabling HEVC for HFI v1 needs to be removed, and as per commit >> c50cc6dc6c48 ("media: venus: hfi_parser: Ignore HEVC encoding for V1"), >> this would break support for some MSM8916 devices. What could be the >> best way to work around this? > > if (!device_is_compatible(core->dev, "qcom,msm8939-venus"))? > > Also, you mentioned HEVC *de*coding, while the commit you pointed to > disables *en*coding (decoding had been already disabled prior to that > commit) > > Konrad >From the commit message I assumed HEVC decoding had already been disabled for the same reasons encoding was - faulty firmware reporting codecs it doesn't actually support.