[PATCH 1/9] drm: meson: mask value when writing bits relaxed
From: Julien Masson
Date: Mon Jun 24 2019 - 10:48:16 EST
The value used in the macro writel_bits_relaxed has to be masked since
we don't want change the bits outside the mask.
Signed-off-by: Julien Masson <jmasson@xxxxxxxxxxxx>
---
drivers/gpu/drm/meson/meson_registers.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/meson/meson_registers.h b/drivers/gpu/drm/meson/meson_registers.h
index cfaf90501bb1..c7dfbd7454e5 100644
--- a/drivers/gpu/drm/meson/meson_registers.h
+++ b/drivers/gpu/drm/meson/meson_registers.h
@@ -20,7 +20,7 @@
#define _REG(reg) ((reg) << 2)
#define writel_bits_relaxed(mask, val, addr) \
- writel_relaxed((readl_relaxed(addr) & ~(mask)) | (val), addr)
+ writel_relaxed((readl_relaxed(addr) & ~(mask)) | ((val) & (mask)), addr)
/* vpp2 */
#define VPP2_DUMMY_DATA 0x1900
--
2.17.1