lkml.org 
[lkml]   [2019]   [Jun]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/9] drm: meson: mask value when writing bits relaxed
Date
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@baylibre.com>
---
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
\
 
 \ /
  Last update: 2019-06-24 16:49    [W:0.130 / U:3.372 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site