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[media] s5p-jpeg: avoid overwriting JPEG_CNTL register settings

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Take into account the JPEG_CNTL register value read before
setting SYS_INT_EN bit field.

Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Jacek Anaszewski 2014-09-01 10:05:51 -03:00 committed by Mauro Carvalho Chehab
parent 37a4bd757c
commit d727ff4241
1 changed files with 2 additions and 2 deletions
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4
drivers/media/platform/s5p-jpeg/jpeg-hw-exynos4.c
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@ -193,9 +193,9 @@ void exynos4_jpeg_set_sys_int_enable(void __iomem *base, int value)
reg = readl(base + EXYNOS4_JPEG_CNTL_REG) & ~(EXYNOS4_SYS_INT_EN);
if (value == 1)
writel(EXYNOS4_SYS_INT_EN, base + EXYNOS4_JPEG_CNTL_REG);
writel(reg | EXYNOS4_SYS_INT_EN, base + EXYNOS4_JPEG_CNTL_REG);
else
writel(~EXYNOS4_SYS_INT_EN, base + EXYNOS4_JPEG_CNTL_REG);
writel(reg & ~EXYNOS4_SYS_INT_EN, base + EXYNOS4_JPEG_CNTL_REG);
}
void exynos4_jpeg_set_stream_buf_address(void __iomem *base,