linux-kernel - [PATCH 2/6] media: stm32: dcmipp: byteproc: disable compose for all bayers

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Message-ID: <20251219-stm32-dcmipp-enhancements-v1-2-e2f8d46f022c@foss.st.com>
Date: Fri, 19 Dec 2025 15:30:36 +0100
From: Alain Volmat <alain.volmat@...s.st.com>
To: Hugues Fruchet <hugues.fruchet@...s.st.com>,
        Mauro Carvalho Chehab
	<mchehab@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        "Alexandre
 Torgue" <alexandre.torgue@...s.st.com>,
        Sakari Ailus
	<sakari.ailus@...ux.intel.com>,
        Hans Verkuil <hverkuil@...nel.org>
CC: <linux-media@...r.kernel.org>, <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        "Alain Volmat" <alain.volmat@...s.st.com>
Subject: [PATCH 2/6] media: stm32: dcmipp: byteproc: disable compose for
 all bayers

Avoid possibility to perform compose on all frames which mbus code is
within the bayer range or jpeg format.

Fixes: 822c72eb1519 ("media: stm32: dcmipp: add bayer 10~14 bits formats")

Signed-off-by: Alain Volmat <alain.volmat@...s.st.com>
---
 drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-byteproc.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-byteproc.c b/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-byteproc.c
index db76a02a1848..ec1d773d5ad1 100644
--- a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-byteproc.c
+++ b/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-byteproc.c
@@ -130,11 +130,8 @@ static void dcmipp_byteproc_adjust_compose(struct v4l2_rect *r,
 	r->left = 0;
 
 	/* Compose is not possible for JPEG or Bayer formats */
-	if (fmt->code == MEDIA_BUS_FMT_JPEG_1X8 ||
-	    fmt->code == MEDIA_BUS_FMT_SBGGR8_1X8 ||
-	    fmt->code == MEDIA_BUS_FMT_SGBRG8_1X8 ||
-	    fmt->code == MEDIA_BUS_FMT_SGRBG8_1X8 ||
-	    fmt->code == MEDIA_BUS_FMT_SRGGB8_1X8) {
+	if (fmt->code >= MEDIA_BUS_FMT_SBGGR8_1X8 &&
+	    fmt->code <= MEDIA_BUS_FMT_JPEG_1X8) {
 		r->width = fmt->width;
 		r->height = fmt->height;
 		return;

-- 
2.34.1