linux-kernel - [PATCH] media: stm32-dcmi: add support of 1X16 serial pixel formats variant

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Date:   Mon, 16 May 2022 11:20:48 +0200
From:   Hugues Fruchet <hugues.fruchet@...s.st.com>
To:     Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hverkuil@...all.nl>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>
CC:     <linux-media@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        Alain Volmat <alain.volmat@...s.st.com>,
        Yannick Fertre <yannick.fertre@...s.st.com>,
        Philippe CORNU <philippe.cornu@...s.st.com>,
        Hugues Fruchet <hugues.fruchet@...s.st.com>
Subject: [PATCH] media: stm32-dcmi: add support of 1X16 serial pixel formats variant

From: Hugues Fruchet <hugues.fruchet@...com>

Add support of 1X16 serial pixel formats in order to support
CSI-2 camera sensor exposing 1x16 pixel formats only.

Signed-off-by: Hugues Fruchet <hugues.fruchet@...com>
---
 drivers/media/platform/st/stm32/stm32-dcmi.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/st/stm32/stm32-dcmi.c b/drivers/media/platform/st/stm32/stm32-dcmi.c
index 09a743cd7004..b2ba4d95bfa3 100644
--- a/drivers/media/platform/st/stm32/stm32-dcmi.c
+++ b/drivers/media/platform/st/stm32/stm32-dcmi.c
@@ -1592,25 +1592,31 @@ static int dcmi_set_default_fmt(struct stm32_dcmi *dcmi)
 	return 0;
 }
 
-/*
- * FIXME: For the time being we only support subdevices
- * which expose RGB & YUV "parallel form" mbus code (_2X8).
- * Nevertheless, this allows to support serial source subdevices
- * and serial to parallel bridges which conform to this.
- */
 static const struct dcmi_format dcmi_formats[] = {
 	{
 		.fourcc = V4L2_PIX_FMT_RGB565,
 		.mbus_code = MEDIA_BUS_FMT_RGB565_2X8_LE,
 		.bpp = 2,
+	}, {
+		.fourcc = V4L2_PIX_FMT_RGB565,
+		.mbus_code = MEDIA_BUS_FMT_RGB565_1X16,
+		.bpp = 2,
 	}, {
 		.fourcc = V4L2_PIX_FMT_YUYV,
 		.mbus_code = MEDIA_BUS_FMT_YUYV8_2X8,
 		.bpp = 2,
+	}, {
+		.fourcc = V4L2_PIX_FMT_YUYV,
+		.mbus_code = MEDIA_BUS_FMT_YUYV8_1X16,
+		.bpp = 2,
 	}, {
 		.fourcc = V4L2_PIX_FMT_UYVY,
 		.mbus_code = MEDIA_BUS_FMT_UYVY8_2X8,
 		.bpp = 2,
+	}, {
+		.fourcc = V4L2_PIX_FMT_UYVY,
+		.mbus_code = MEDIA_BUS_FMT_UYVY8_1X16,
+		.bpp = 2,
 	}, {
 		.fourcc = V4L2_PIX_FMT_JPEG,
 		.mbus_code = MEDIA_BUS_FMT_JPEG_1X8,
-- 
2.25.1