[PATCH 4.19 70/77] dmaengine: owl: fix register access functions

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4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Arnd Bergmann <arnd@xxxxxxxx>

[ Upstream commit 43c633ef93a5d293c96ebcedb40130df13128428 ]

When building with 'make W=1', clang notices that the computed register
values are never actually written back but instead the wrong variable
is set:

drivers/dma/owl-dma.c:244:6: error: variable 'regval' set but not used [-Werror,-Wunused-but-set-variable]
  244 |         u32 regval;
      |             ^
drivers/dma/owl-dma.c:268:6: error: variable 'regval' set but not used [-Werror,-Wunused-but-set-variable]
  268 |         u32 regval;
      |             ^

Change these to what was most likely intended.

Fixes: 47e20577c24d ("dmaengine: Add Actions Semi Owl family S900 DMA driver")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Reviewed-by: Peter Korsgaard <peter@xxxxxxxxxxxxx>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240322132116.906475-1-arnd@xxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/dma/owl-dma.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/owl-dma.c b/drivers/dma/owl-dma.c
index da5050ab7f387..c12968075abc9 100644
--- a/drivers/dma/owl-dma.c
+++ b/drivers/dma/owl-dma.c
@@ -230,7 +230,7 @@ static void pchan_update(struct owl_dma_pchan *pchan, u32 reg,
 	else
 		regval &= ~val;
 
-	writel(val, pchan->base + reg);
+	writel(regval, pchan->base + reg);
 }
 
 static void pchan_writel(struct owl_dma_pchan *pchan, u32 reg, u32 data)
@@ -254,7 +254,7 @@ static void dma_update(struct owl_dma *od, u32 reg, u32 val, bool state)
 	else
 		regval &= ~val;
 
-	writel(val, od->base + reg);
+	writel(regval, od->base + reg);
 }
 
 static void dma_writel(struct owl_dma *od, u32 reg, u32 data)
-- 
2.43.0







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