From: Thierry Escande <thierry.escande@collabora.com>
To: Andrzej Pietrasiewicz <andrzej.p@samsung.com>,
Jacek Anaszewski <jacek.anaszewski@gmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 1/6] [media] s5p-jpeg: Reset the Codec before doing a soft reset
Date: Mon, 12 Jun 2017 19:13:20 +0200 [thread overview]
Message-ID: <1497287605-20074-2-git-send-email-thierry.escande@collabora.com> (raw)
In-Reply-To: <1497287605-20074-1-git-send-email-thierry.escande@collabora.com>
From: Abhilash Kesavan <a.kesavan@samsung.com>
This patch resets the encoding and decoding register bits before doing a
soft reset.
Signed-off-by: Tony K Nadackal <tony.kn@samsung.com>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
---
drivers/media/platform/s5p-jpeg/jpeg-hw-exynos4.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/media/platform/s5p-jpeg/jpeg-hw-exynos4.c b/drivers/media/platform/s5p-jpeg/jpeg-hw-exynos4.c
index a1d823a..9ad8f6d 100644
--- a/drivers/media/platform/s5p-jpeg/jpeg-hw-exynos4.c
+++ b/drivers/media/platform/s5p-jpeg/jpeg-hw-exynos4.c
@@ -21,6 +21,10 @@ void exynos4_jpeg_sw_reset(void __iomem *base)
unsigned int reg;
reg = readl(base + EXYNOS4_JPEG_CNTL_REG);
+ writel(reg & ~(EXYNOS4_DEC_MODE | EXYNOS4_ENC_MODE),
+ base + EXYNOS4_JPEG_CNTL_REG);
+
+ reg = readl(base + EXYNOS4_JPEG_CNTL_REG);
writel(reg & ~EXYNOS4_SOFT_RESET_HI, base + EXYNOS4_JPEG_CNTL_REG);
udelay(100);
--
2.7.4
next prev parent reply other threads:[~2017-06-12 17:13 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-12 17:13 [PATCH v2 0/6] [media] s5p-jpeg: Various fixes and improvements Thierry Escande
2017-06-12 17:13 ` Thierry Escande [this message]
2017-06-21 8:00 ` [PATCH v2 1/6] [media] s5p-jpeg: Reset the Codec before doing a soft reset Andrzej Pietrasiewicz
2017-06-12 17:13 ` [PATCH v2 2/6] [media] s5p-jpeg: Call jpeg_bound_align_image after qbuf Thierry Escande
2017-06-12 17:13 ` [PATCH v2 3/6] [media] s5p-jpeg: Correct WARN_ON statement for checking subsampling Thierry Escande
2017-06-12 17:13 ` [PATCH v2 4/6] [media] s5p-jpeg: Decode 4:1:1 chroma subsampling format Thierry Escande
2017-06-20 11:57 ` Andrzej Pietrasiewicz
2017-06-12 17:13 ` [PATCH v2 5/6] [media] s5p-jpeg: Add support for resolution change event Thierry Escande
2017-06-16 15:38 ` Andrzej Pietrasiewicz
2017-06-19 13:50 ` Thierry Escande
2017-06-20 10:51 ` Andrzej Pietrasiewicz
2017-06-20 14:08 ` Thierry Escande
2017-06-12 17:13 ` [PATCH v2 6/6] [media] s5p-jpeg: Add stream error handling for Exynos5420 Thierry Escande
2017-06-16 15:30 ` Andrzej Pietrasiewicz
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