linux-kernel - [PATCH v4 17/24] staging: media: tegra-video: tegra20: adjust format align calculations

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Message-ID: <20251008073046.23231-18-clamor95@gmail.com>
Date: Wed,  8 Oct 2025 10:30:39 +0300
From: Svyatoslav Ryhel <clamor95@...il.com>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Jonathan Hunter <jonathanh@...dia.com>,
	Sowjanya Komatineni <skomatineni@...dia.com>,
	Luca Ceresoli <luca.ceresoli@...tlin.com>,
	Prashant Gaikwad <pgaikwad@...dia.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Mikko Perttunen <mperttunen@...dia.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Svyatoslav Ryhel <clamor95@...il.com>,
	Jonas Schwöbel <jonasschwoebel@...oo.de>,
	Dmitry Osipenko <digetx@...il.com>,
	Charan Pedumuru <charan.pedumuru@...il.com>,
	Diogo Ivo <diogo.ivo@...nico.ulisboa.pt>,
	Aaron Kling <webgeek1234@...il.com>,
	Arnd Bergmann <arnd@...db.de>
Cc: dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-media@...r.kernel.org,
	linux-clk@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	linux-staging@...ts.linux.dev
Subject: [PATCH v4 17/24] staging: media: tegra-video: tegra20: adjust format align calculations

Expand supported formats structure with data_type and bit_width fields
required for CSI support. Adjust tegra20_fmt_align by factoring out common
bytesperline and sizeimage calculation logic shared by supported planar
and non-planar formats and leaving planar-related correction under a
switch.

Signed-off-by: Svyatoslav Ryhel <clamor95@...il.com>
---
 drivers/staging/media/tegra-video/tegra20.c | 39 ++++++++++-----------
 1 file changed, 19 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/media/tegra-video/tegra20.c b/drivers/staging/media/tegra-video/tegra20.c
index 7c3ff843235d..ffaaa2bb8269 100644
--- a/drivers/staging/media/tegra-video/tegra20.c
+++ b/drivers/staging/media/tegra-video/tegra20.c
@@ -280,18 +280,13 @@ static void tegra20_fmt_align(struct v4l2_pix_format *pix, unsigned int bpp)
 	pix->width  = clamp(pix->width,  TEGRA20_MIN_WIDTH,  TEGRA20_MAX_WIDTH);
 	pix->height = clamp(pix->height, TEGRA20_MIN_HEIGHT, TEGRA20_MAX_HEIGHT);
 
+	pix->bytesperline = roundup(pix->width, 8) * bpp;
+	pix->sizeimage = pix->bytesperline * pix->height;
+
 	switch (pix->pixelformat) {
-	case V4L2_PIX_FMT_UYVY:
-	case V4L2_PIX_FMT_VYUY:
-	case V4L2_PIX_FMT_YUYV:
-	case V4L2_PIX_FMT_YVYU:
-		pix->bytesperline = roundup(pix->width, 2) * 2;
-		pix->sizeimage = roundup(pix->width, 2) * 2 * pix->height;
-		break;
 	case V4L2_PIX_FMT_YUV420:
 	case V4L2_PIX_FMT_YVU420:
-		pix->bytesperline = roundup(pix->width, 8);
-		pix->sizeimage = roundup(pix->width, 8) * pix->height * 3 / 2;
+		pix->sizeimage = pix->sizeimage * 3 / 2;
 		break;
 	}
 }
@@ -576,20 +571,24 @@ static const struct tegra_vi_ops tegra20_vi_ops = {
 	.vi_stop_streaming = tegra20_vi_stop_streaming,
 };
 
-#define TEGRA20_VIDEO_FMT(MBUS_CODE, BPP, FOURCC)	\
-{							\
-	.code    = MEDIA_BUS_FMT_##MBUS_CODE,		\
-	.bpp     = BPP,					\
-	.fourcc  = V4L2_PIX_FMT_##FOURCC,		\
+#define TEGRA20_VIDEO_FMT(DATA_TYPE, BIT_WIDTH, MBUS_CODE, BPP, FOURCC)	\
+{									\
+	.img_dt		= TEGRA_IMAGE_DT_##DATA_TYPE,			\
+	.bit_width	= BIT_WIDTH,					\
+	.code		= MEDIA_BUS_FMT_##MBUS_CODE,			\
+	.bpp		= BPP,						\
+	.fourcc		= V4L2_PIX_FMT_##FOURCC,			\
 }
 
 static const struct tegra_video_format tegra20_video_formats[] = {
-	TEGRA20_VIDEO_FMT(UYVY8_2X8, 2, UYVY),
-	TEGRA20_VIDEO_FMT(VYUY8_2X8, 2, VYUY),
-	TEGRA20_VIDEO_FMT(YUYV8_2X8, 2, YUYV),
-	TEGRA20_VIDEO_FMT(YVYU8_2X8, 2, YVYU),
-	TEGRA20_VIDEO_FMT(UYVY8_2X8, 1, YUV420),
-	TEGRA20_VIDEO_FMT(UYVY8_2X8, 1, YVU420),
+	/* YUV422 */
+	TEGRA20_VIDEO_FMT(YUV422_8, 16, UYVY8_2X8, 2, UYVY),
+	TEGRA20_VIDEO_FMT(YUV422_8, 16, VYUY8_2X8, 2, VYUY),
+	TEGRA20_VIDEO_FMT(YUV422_8, 16, YUYV8_2X8, 2, YUYV),
+	TEGRA20_VIDEO_FMT(YUV422_8, 16, YVYU8_2X8, 2, YVYU),
+	/* YUV420P */
+	TEGRA20_VIDEO_FMT(YUV422_8, 16, UYVY8_2X8, 1, YUV420),
+	TEGRA20_VIDEO_FMT(YUV422_8, 16, UYVY8_2X8, 1, YVU420),
 };
 
 const struct tegra_vi_soc tegra20_vi_soc = {
-- 
2.48.1