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authorJulien Masson <jmasson@baylibre.com>2019-06-24 16:47:56 +0200
committerNeil Armstrong <narmstrong@baylibre.com>2019-08-09 11:37:30 +0200
commitf237bf2de82eafd224eb981c6c0bca8a9e039af6 (patch)
tree46e4685bfc08a2c8f759a81596e97e89badb5ad0
parentd8a0d6a3b7810fe3de723505c75f7f34ee6891df (diff)
drm: meson: mask value when writing bits relaxed
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> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://patchwork.freedesktop.org/patch/msgid/86y31r82fo.fsf@baylibre.com
-rw-r--r--drivers/gpu/drm/meson/meson_registers.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/meson/meson_registers.h b/drivers/gpu/drm/meson/meson_registers.h
index 057453ce027c..f8dd1be0131e 100644
--- a/drivers/gpu/drm/meson/meson_registers.h
+++ b/drivers/gpu/drm/meson/meson_registers.h
@@ -12,7 +12,7 @@
#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