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[188.141.5.72]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c317c33e313sm18823666b.70.2026.10.06.16.42.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Oct 2026 16:42:44 -0700 (PDT) From: David Carlier To: linux-media@vger.kernel.org Cc: dan.scally@ideasonboard.com, jacopo.mondi@ideasonboard.com, mchehab@kernel.org, hverkuil+cisco@kernel.org, linux-kernel@vger.kernel.org, David Carlier , stable@vger.kernel.org Subject: [PATCH] media: mali-c55: Disable colour space conversion for RGB outputs Date: Wed, 7 Oct 2026 00:42:27 +0100 Message-ID: <20261006234242.11934-1-devnexen@gmail.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The colour space conversion block is only programmed for YUV formats, and its configuration is kept across streaming sessions. An RGB stream started after a YUV one thus still converts its output to YUV. Clear the conversion configuration for non-YUV formats. Fixes: d5f281f3dd29 ("media: mali-c55: Add Mali-C55 ISP driver") Cc: stable@vger.kernel.org Assisted-by: LLM Signed-off-by: David Carlier --- drivers/media/platform/arm/mali-c55/mali-c55-capture.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/media/platform/arm/mali-c55/mali-c55-capture.c b/drivers/media/platform/arm/mali-c55/mali-c55-capture.c index ff01553026fb..2425a069a939 100644 --- a/drivers/media/platform/arm/mali-c55/mali-c55-capture.c +++ b/drivers/media/platform/arm/mali-c55/mali-c55-capture.c @@ -577,6 +577,10 @@ static void mali_c55_cap_dev_format_configure(struct mali_c55_cap_dev *cap_dev) MALI_C55_REG_CS_CONV_CONFIG, MALI_C55_CS_CONV_FILTER_MASK, MALI_C55_CS_CONV_FILTER_ENABLE); + } else { + /* Don't inherit the conversion set up by a previous YUV stream. */ + mali_c55_cap_dev_write(cap_dev, MALI_C55_REG_CS_CONV_CONFIG, + 0); } } -- 2.55.0