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46 lines
1.7 KiB
Diff
46 lines
1.7 KiB
Diff
From de8fa25cdf3726c83ac0d7b3b1e28bcb6334aadd Mon Sep 17 00:00:00 2001
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From: Eugen Hristev <eugen.hristev@microchip.com>
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Date: Tue, 13 Apr 2021 12:57:01 +0200
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Subject: [PATCH 159/247] media: atmel: atmel-isc: add checks for limiting
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frame sizes
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When calling the subdev, certain subdev drivers will overwrite the
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frame size and adding sizes which are beyond the ISC's capabilities.
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Thus we need to ensure the frame size is cropped to the maximum caps.
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Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
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Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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---
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drivers/media/platform/atmel/atmel-isc-base.c | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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--- a/drivers/media/platform/atmel/atmel-isc-base.c
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+++ b/drivers/media/platform/atmel/atmel-isc-base.c
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@@ -1338,6 +1338,12 @@ static int isc_try_fmt(struct isc_device
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v4l2_fill_pix_format(pixfmt, &format.format);
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+ /* Limit to Atmel ISC hardware capabilities */
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+ if (pixfmt->width > ISC_MAX_SUPPORT_WIDTH)
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+ pixfmt->width = ISC_MAX_SUPPORT_WIDTH;
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+ if (pixfmt->height > ISC_MAX_SUPPORT_HEIGHT)
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+ pixfmt->height = ISC_MAX_SUPPORT_HEIGHT;
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+
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pixfmt->field = V4L2_FIELD_NONE;
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pixfmt->bytesperline = (pixfmt->width * isc->try_config.bpp) >> 3;
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pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height;
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@@ -1373,6 +1379,12 @@ static int isc_set_fmt(struct isc_device
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if (ret < 0)
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return ret;
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+ /* Limit to Atmel ISC hardware capabilities */
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+ if (pixfmt->width > ISC_MAX_SUPPORT_WIDTH)
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+ pixfmt->width = ISC_MAX_SUPPORT_WIDTH;
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+ if (pixfmt->height > ISC_MAX_SUPPORT_HEIGHT)
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+ pixfmt->height = ISC_MAX_SUPPORT_HEIGHT;
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+
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isc->fmt = *f;
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if (isc->try_config.sd_format && isc->config.sd_format &&
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