linux-kernel - [PATCH v3 09/15] media: stm32: dcmipp: add 1X16 RGB / YUV formats support

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Message-ID: <20241118-csi_dcmipp_mp25-v3-9-c1914afb0a0f@foss.st.com>
Date: Mon, 18 Nov 2024 14:35:32 +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>,
        Hans Verkuil
	<hverkuil-cisco@...all.nl>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Rob
 Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor
 Dooley <conor+dt@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>
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>, Alain Volmat <alain.volmat@...s.st.com>
Subject: [PATCH v3 09/15] media: stm32: dcmipp: add 1X16 RGB / YUV formats
 support

Add 1X16 RGB & YUV formats support within bytecap & byteproc.
Slightly change the link_validate function to be able to validate
against either 1X16 or 2X8 variant of a format.

Signed-off-by: Alain Volmat <alain.volmat@...s.st.com>
---
 .../st/stm32/stm32-dcmipp/dcmipp-bytecap.c         | 23 ++++++++++++++++------
 .../st/stm32/stm32-dcmipp/dcmipp-byteproc.c        |  5 +++++
 2 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c b/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c
index d6fad99e44bba5bcab1df056ba9208e82aff4bea..99732d19dc4d5f4692588118eadb236d4ed9c8a1 100644
--- a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c
+++ b/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c
@@ -56,10 +56,15 @@ struct dcmipp_bytecap_pix_map {
 
 static const struct dcmipp_bytecap_pix_map dcmipp_bytecap_pix_map_list[] = {
 	PIXMAP_MBUS_PFMT(RGB565_2X8_LE, RGB565),
+	PIXMAP_MBUS_PFMT(RGB565_1X16, RGB565),
 	PIXMAP_MBUS_PFMT(YUYV8_2X8, YUYV),
+	PIXMAP_MBUS_PFMT(YUYV8_1X16, YUYV),
 	PIXMAP_MBUS_PFMT(YVYU8_2X8, YVYU),
+	PIXMAP_MBUS_PFMT(YVYU8_1X16, YVYU),
 	PIXMAP_MBUS_PFMT(UYVY8_2X8, UYVY),
+	PIXMAP_MBUS_PFMT(UYVY8_1X16, UYVY),
 	PIXMAP_MBUS_PFMT(VYUY8_2X8, VYUY),
+	PIXMAP_MBUS_PFMT(VYUY8_1X16, VYUY),
 	PIXMAP_MBUS_PFMT(Y8_1X8, GREY),
 	PIXMAP_MBUS_PFMT(SBGGR8_1X8, SBGGR8),
 	PIXMAP_MBUS_PFMT(SGBRG8_1X8, SGBRG8),
@@ -819,8 +824,7 @@ static int dcmipp_bytecap_link_validate(struct media_link *link)
 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
 		.pad = link->source->index,
 	};
-	const struct dcmipp_bytecap_pix_map *vpix;
-	int ret;
+	int ret, i;
 
 	ret = v4l2_subdev_call(source_sd, pad, get_fmt, NULL, &source_fmt);
 	if (ret < 0)
@@ -834,10 +838,17 @@ static int dcmipp_bytecap_link_validate(struct media_link *link)
 		return -EINVAL;
 	}
 
-	vpix = dcmipp_bytecap_pix_map_by_pixelformat(vcap->format.pixelformat);
-	if (source_fmt.format.code != vpix->code) {
-		dev_err(vcap->dev, "Wrong mbus_code 0x%x, (0x%x expected)\n",
-			vpix->code, source_fmt.format.code);
+	for (i = 0; i < ARRAY_SIZE(dcmipp_bytecap_pix_map_list); i++) {
+		if (dcmipp_bytecap_pix_map_list[i].pixelformat ==
+			vcap->format.pixelformat &&
+		    dcmipp_bytecap_pix_map_list[i].code ==
+			source_fmt.format.code)
+			break;
+	}
+
+	if (i == ARRAY_SIZE(dcmipp_bytecap_pix_map_list)) {
+		dev_err(vcap->dev, "mbus code 0x%x do not match capture device format (0x%x)\n",
+			vcap->format.pixelformat, source_fmt.format.code);
 		return -EINVAL;
 	}
 
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 72f1bb4c64ad4c194c14467dfc354a04bc69e208..3c742a546441e190b7d93d5e9401d6824acf509b 100644
--- a/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-byteproc.c
+++ b/drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-byteproc.c
@@ -48,10 +48,15 @@ struct dcmipp_byteproc_pix_map {
 	}
 static const struct dcmipp_byteproc_pix_map dcmipp_byteproc_pix_map_list[] = {
 	PIXMAP_MBUS_BPP(RGB565_2X8_LE, 2),
+	PIXMAP_MBUS_BPP(RGB565_1X16, 2),
 	PIXMAP_MBUS_BPP(YUYV8_2X8, 2),
+	PIXMAP_MBUS_BPP(YUYV8_1X16, 2),
 	PIXMAP_MBUS_BPP(YVYU8_2X8, 2),
+	PIXMAP_MBUS_BPP(YVYU8_1X16, 2),
 	PIXMAP_MBUS_BPP(UYVY8_2X8, 2),
+	PIXMAP_MBUS_BPP(UYVY8_1X16, 2),
 	PIXMAP_MBUS_BPP(VYUY8_2X8, 2),
+	PIXMAP_MBUS_BPP(VYUY8_1X16, 2),
 	PIXMAP_MBUS_BPP(Y8_1X8, 1),
 	PIXMAP_MBUS_BPP(SBGGR8_1X8, 1),
 	PIXMAP_MBUS_BPP(SGBRG8_1X8, 1),

-- 
2.25.1