linux-kernel - [PATCH 5.2 383/413] gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM

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Message-Id: <20190724191802.459356008@linuxfoundation.org>
Date:   Wed, 24 Jul 2019 21:21:14 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Steve Longerbeam <slongerbeam@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>
Subject: [PATCH 5.2 383/413] gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM

From: Steve Longerbeam <slongerbeam@...il.com>

commit 3d1f62c686acdedf5ed9642b763f3808d6a47d1e upstream.

The saturation bit was being set at bit 9 in the second 32-bit word
of the TPMEM CSC. This isn't correct, the saturation bit is bit 42,
which is bit 10 of the second word.

Fixes: 1aa8ea0d2bd5d ("gpu: ipu-v3: Add Image Converter unit")

Signed-off-by: Steve Longerbeam <slongerbeam@...il.com>
Reviewed-by: Philipp Zabel <p.zabel@...gutronix.de>
Cc: stable@...r.kernel.org
Signed-off-by: Philipp Zabel <p.zabel@...gutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/ipu-v3/ipu-ic.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/ipu-v3/ipu-ic.c
+++ b/drivers/gpu/ipu-v3/ipu-ic.c
@@ -251,7 +251,7 @@ static int init_csc(struct ipu_ic *ic,
 	writel(param, base++);
 
 	param = ((a[0] & 0x1fe0) >> 5) | (params->scale << 8) |
-		(params->sat << 9);
+		(params->sat << 10);
 	writel(param, base++);
 
 	param = ((a[1] & 0x1f) << 27) | ((c[0][1] & 0x1ff) << 18) |