linux-kernel - [PATCH v7 1/5] gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM

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Message-Id: <20190406230903.16488-2-slongerbeam@gmail.com>
Date:   Sat,  6 Apr 2019 16:08:59 -0700
From:   Steve Longerbeam <slongerbeam@...il.com>
To:     linux-media@...r.kernel.org
Cc:     Steve Longerbeam <slongerbeam@...il.com>, stable@...r.kernel.org,
        Philipp Zabel <p.zabel@...gutronix.de>,
        dri-devel@...ts.freedesktop.org (open list:DRM DRIVERS FOR FREESCALE
        IMX), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v7 1/5] gpu: ipu-v3: ipu-ic: Fix saturation bit offset in TPMEM

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

diff --git a/drivers/gpu/ipu-v3/ipu-ic.c b/drivers/gpu/ipu-v3/ipu-ic.c
index 594c3cbc8291..18816ccf600e 100644
--- a/drivers/gpu/ipu-v3/ipu-ic.c
+++ b/drivers/gpu/ipu-v3/ipu-ic.c
@@ -257,7 +257,7 @@ 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) |
-- 
2.17.1