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From: Eugen Hristev <eugen.hristev@microchip.com>
To: <devicetree@vger.kernel.org>, <linux-media@vger.kernel.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	Eugen Hristev <eugen.hristev@microchip.com>
Subject: [PATCH 03/30] media: atmel: atmel-isc: add checks for limiting frame sizes
Date: Thu, 1 Apr 2021 14:26:56 +0300	[thread overview]
Message-ID: <20210401112723.189107-4-eugen.hristev@microchip.com> (raw)
In-Reply-To: <20210401112723.189107-1-eugen.hristev@microchip.com>

When calling the subdev, certain subdev drivers will overwrite the
frame size and adding sizes which are beyond the ISC's capabilities.
Thus we need to ensure the frame size is cropped to the maximum caps.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
---
 drivers/media/platform/atmel/atmel-isc-base.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/media/platform/atmel/atmel-isc-base.c b/drivers/media/platform/atmel/atmel-isc-base.c
index 277a8fd8b83d..45fc8dbb7943 100644
--- a/drivers/media/platform/atmel/atmel-isc-base.c
+++ b/drivers/media/platform/atmel/atmel-isc-base.c
@@ -1326,6 +1326,12 @@ static int isc_try_fmt(struct isc_device *isc, struct v4l2_format *f,
 
 	v4l2_fill_pix_format(pixfmt, &format.format);
 
+	/* Limit to Atmel ISC hardware capabilities */
+	if (pixfmt->width > ISC_MAX_SUPPORT_WIDTH)
+		pixfmt->width = ISC_MAX_SUPPORT_WIDTH;
+	if (pixfmt->height > ISC_MAX_SUPPORT_HEIGHT)
+		pixfmt->height = ISC_MAX_SUPPORT_HEIGHT;
+
 	pixfmt->field = V4L2_FIELD_NONE;
 	pixfmt->bytesperline = (pixfmt->width * isc->try_config.bpp) >> 3;
 	pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height;
@@ -1361,6 +1367,12 @@ static int isc_set_fmt(struct isc_device *isc, struct v4l2_format *f)
 	if (ret < 0)
 		return ret;
 
+	/* Limit to Atmel ISC hardware capabilities */
+	if (pixfmt->width > ISC_MAX_SUPPORT_WIDTH)
+		pixfmt->width = ISC_MAX_SUPPORT_WIDTH;
+	if (pixfmt->height > ISC_MAX_SUPPORT_HEIGHT)
+		pixfmt->height = ISC_MAX_SUPPORT_HEIGHT;
+
 	isc->fmt = *f;
 
 	if (isc->try_config.sd_format && isc->config.sd_format &&
-- 
2.25.1


  parent reply	other threads:[~2021-04-01 18:17 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-01 11:26 [PATCH 00/30] media: atmel: atmel-isc: add support for xisc Eugen Hristev
2021-04-01 11:26 ` [PATCH 01/30] media: atmel: atmel-isc: specialize gamma table into product specific Eugen Hristev
2021-04-01 11:26 ` [PATCH 02/30] media: atmel: atmel-isc: specialize driver name constant Eugen Hristev
2021-04-01 11:26 ` Eugen Hristev [this message]
2021-04-01 11:26 ` [PATCH 04/30] media: atmel: atmel-isc: specialize max width and max height Eugen Hristev
2021-04-01 11:26 ` [PATCH 05/30] media: atmel: atmel-isc: specialize dma cfg Eugen Hristev
2021-04-01 11:26 ` [PATCH 06/30] media: atmel: atmel-isc: extract CSC submodule config into separate function Eugen Hristev
2021-04-01 20:36   ` kernel test robot
2021-04-01 11:27 ` [PATCH 07/30] media: atmel: atmel-isc-base: add id to clock debug message Eugen Hristev
2021-04-01 11:27 ` [PATCH 08/30] media: atmel: atmel-isc: create register offsets struct Eugen Hristev
2021-04-01 11:27 ` [PATCH 09/30] media: atmel: atmel-isc: extract CBC submodule config into separate function Eugen Hristev
2021-04-01 21:37   ` kernel test robot
2021-04-01 11:27 ` [PATCH 10/30] media: atmel: atmel-isc: add CBC to the reg offsets struct Eugen Hristev
2021-04-01 11:27 ` [PATCH 11/30] media: atmel: atmel-isc: add SUB422 and SUB420 to register offsets Eugen Hristev
2021-04-01 11:27 ` [PATCH 12/30] media: atmel: atmel-isc: add RLP " Eugen Hristev
2021-04-01 11:27 ` [PATCH 13/30] media: atmel: atmel-isc: add HIS " Eugen Hristev
2021-04-01 11:27 ` [PATCH 14/30] media: atmel: atmel-isc: add DMA " Eugen Hristev
2021-04-01 11:27 ` [PATCH 15/30] media: atmel: atmel-isc: add support for version register Eugen Hristev
2021-04-01 11:27 ` [PATCH 16/30] media: atmel: atmel-isc: add his_entry to register offsets Eugen Hristev
2021-04-01 11:27 ` [PATCH 17/30] media: atmel: atmel-isc: add register description for additional modules Eugen Hristev
2021-04-01 11:27 ` [PATCH 18/30] media: atmel: atmel-isc: extend pipeline with extra modules Eugen Hristev
2021-04-01 11:27 ` [PATCH 19/30] media: atmel: atmel-isc: add CC initialization function Eugen Hristev
2021-04-01 11:27 ` [PATCH 20/30] media: atmel: atmel-isc: create product specific v4l2 controls config Eugen Hristev
2021-04-01 11:27 ` [PATCH 21/30] media: atmel: atmel-isc: create callback for DPC submodule product specific Eugen Hristev
2021-04-01 11:27 ` [PATCH 22/30] media: atmel: atmel-isc: create callback for GAM " Eugen Hristev
2021-04-01 11:27 ` [PATCH 23/30] media: atmel: atmel-isc: create callback for RLP " Eugen Hristev
2021-04-01 11:27 ` [PATCH 24/30] media: atmel: atmel-isc: move the formats list into product specific code Eugen Hristev
2021-04-01 11:27 ` [PATCH 25/30] media: atmel: atmel-isc: create an adapt pipeline callback for product specific Eugen Hristev
2021-04-01 11:27 ` [PATCH 26/30] media: atmel: atmel-isc-regs: add additional fields for sama7g5 type pipeline Eugen Hristev
2021-04-01 11:27 ` [PATCH 27/30] media: atmel: atmel-isc-base: add support for more formats and additional pipeline modules Eugen Hristev
2021-04-01 11:27 ` [PATCH 28/30] dt-bindings: media: atmel: add microchip-xisc binding Eugen Hristev
2021-04-01 11:27 ` [PATCH 29/30] media: atmel: atmel-isc-sama5d2: remove duplicate define Eugen Hristev
2021-04-01 11:27 ` [PATCH 30/30] media: atmel: atmel-isc: add microchip-xisc driver Eugen Hristev
2021-04-01 20:36   ` kernel test robot

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