linux-kernel - [PATCH 08/12] media: stm32: dcmi: continuous mode capture in JPEG

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Message-ID: <20251218-stm32-dcmi-dma-chaining-v1-8-39948ca6cbf6@foss.st.com>
Date: Thu, 18 Dec 2025 19:44:48 +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>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Christian König
	<christian.koenig@....com>
CC: <linux-media@...r.kernel.org>, <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <linaro-mm-sig@...ts.linaro.org>,
        Alain Volmat <alain.volmat@...s.st.com>
Subject: [PATCH 08/12] media: stm32: dcmi: continuous mode capture in JPEG

Overall cleanup done allows to now have the JPEG handling
done in the same way as other formats in continuous mode,
allowing to achieve a faster framerate in all resolutions.

Signed-off-by: Alain Volmat <alain.volmat@...s.st.com>
---
 drivers/media/platform/st/stm32/stm32-dcmi.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/media/platform/st/stm32/stm32-dcmi.c b/drivers/media/platform/st/stm32/stm32-dcmi.c
index 25e95ba2ca84..4c0f8ed0f87e 100644
--- a/drivers/media/platform/st/stm32/stm32-dcmi.c
+++ b/drivers/media/platform/st/stm32/stm32-dcmi.c
@@ -717,10 +717,6 @@ static int dcmi_start_streaming(struct vb2_queue *vq, unsigned int count)
 	if (dcmi->do_crop)
 		dcmi_set_crop(dcmi);
 
-	/* Enable jpeg capture */
-	if (dcmi->sd_format->fourcc == V4L2_PIX_FMT_JPEG)
-		reg_set(dcmi->regs, DCMI_CR, CR_CM);/* Snapshot mode */
-
 	/* Enable dcmi */
 	reg_set(dcmi->regs, DCMI_CR, CR_ENABLE);
 

-- 
2.34.1