From: Julien Masson <jmasson@baylibre.com>
To: Neil Armstrong <narmstrong@baylibre.com>
Cc: Julien Masson <jmasson@baylibre.com>,
linux-amlogic@lists.infradead.org,
dri-devel@lists.freedesktop.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/9] drm: meson: mask value when writing bits relaxed
Date: Mon, 24 Jun 2019 16:47:56 +0200 [thread overview]
Message-ID: <86y31r82fo.fsf@baylibre.com> (raw)
In-Reply-To: 86zhm782g5.fsf@baylibre.com
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
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next prev parent reply other threads:[~2019-06-24 14:48 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-24 14:20 [PATCH 0/9] drm: meson: global clean-up (use proper macros, update comments ...) Julien Masson
2019-06-24 14:47 ` Julien Masson [this message]
2019-06-24 14:48 ` [PATCH 2/9] drm: meson: crtc: use proper macros instead of magic constants Julien Masson
2019-06-24 14:48 ` [PATCH 3/9] drm: meson: drv: use macro when initializing vpu Julien Masson
2019-06-24 14:48 ` [PATCH 4/9] drm: meson: vpp: use proper macros instead of magic constants Julien Masson
2019-06-24 23:15 ` Kevin Hilman
2019-08-08 14:09 ` Neil Armstrong
2019-06-24 14:48 ` [PATCH 5/9] drm: meson: viu: " Julien Masson
2019-06-24 14:48 ` [PATCH 6/9] drm: meson: venc: " Julien Masson
2019-06-24 14:48 ` [PATCH 7/9] drm: meson: global clean-up Julien Masson
2019-06-24 14:49 ` [PATCH 8/9] drm: meson: add macro used to enable HDMI PLL Julien Masson
2019-06-24 23:20 ` Kevin Hilman
2019-08-08 14:10 ` Neil Armstrong
2019-06-24 14:49 ` [PATCH 9/9] drm: meson: venc: set the correct macrovision max amplitude value Julien Masson
2019-06-24 23:24 ` [PATCH 0/9] drm: meson: global clean-up (use proper macros, update comments ...) Kevin Hilman
2019-08-08 14:12 ` Neil Armstrong
2019-08-09 9:29 ` Neil Armstrong
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