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
