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drm: meson: mask value when writing bits relaxed

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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
This commit is contained in:
Julien Masson 2019-06-24 16:47:56 +02:00 committed by Neil Armstrong
parent d8a0d6a3b7
commit f237bf2de8
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/meson/meson_registers.h
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@ -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