From: "Paweł Anikiel" <panikiel@google.com>
To: airlied@gmail.com, akpm@linux-foundation.org,
conor+dt@kernel.org, daniel@ffwll.ch, dinguyen@kernel.org,
hverkuil-cisco@xs4all.nl, krzysztof.kozlowski+dt@linaro.org,
maarten.lankhorst@linux.intel.com, mchehab@kernel.org,
mripard@kernel.org, robh+dt@kernel.org, tzimmermann@suse.de
Cc: devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
chromeos-krk-upstreaming@google.com,
"Paweł Anikiel" <panikiel@google.com>
Subject: [PATCH v3 04/10] drm/display: Add mask definitions for DP_PAYLOAD_ALLOCATE_* registers
Date: Tue, 7 May 2024 15:54:07 +0000 [thread overview]
Message-ID: <20240507155413.266057-5-panikiel@google.com> (raw)
In-Reply-To: <20240507155413.266057-1-panikiel@google.com>
Each of these registers contains a single value, but not the entire
8 bits:
DP_PAYLOAD_ALLOCATE_SET - Bit 7 Reserved
DP_PAYLOAD_ALLOCATE_START_TIME_SLOT - Bits 7:6 Reserved
DP_PAYLOAD_ALLOCATE_TIME_SLOT_COUNT - Bits 7:6 Reserved
Add definitions to properly mask off values read from these registers.
Signed-off-by: Paweł Anikiel <panikiel@google.com>
---
include/drm/display/drm_dp.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index 4891bd916d26..1c397a5f8fc5 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -734,8 +734,13 @@
# define DP_PANEL_REPLAY_SU_ENABLE (1 << 6)
#define DP_PAYLOAD_ALLOCATE_SET 0x1c0
-#define DP_PAYLOAD_ALLOCATE_START_TIME_SLOT 0x1c1
-#define DP_PAYLOAD_ALLOCATE_TIME_SLOT_COUNT 0x1c2
+# define DP_PAYLOAD_ALLOCATE_SET_MASK 0x7f
+
+#define DP_PAYLOAD_ALLOCATE_START_TIME_SLOT 0x1c1
+# define DP_PAYLOAD_ALLOCATE_START_TIME_SLOT_MASK 0x3f
+
+#define DP_PAYLOAD_ALLOCATE_TIME_SLOT_COUNT 0x1c2
+# define DP_PAYLOAD_ALLOCATE_TIME_SLOT_COUNT_MASK 0x3f
/* Link/Sink Device Status */
#define DP_SINK_COUNT 0x200
--
2.45.0.rc1.225.g2a3ae87e7f-goog
next prev parent reply other threads:[~2024-05-07 15:55 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-07 15:54 [PATCH v3 00/10] Add Chameleon v3 video support Paweł Anikiel
2024-05-07 15:54 ` [PATCH v3 01/10] media: Add Chameleon v3 video interface driver Paweł Anikiel
2024-05-07 15:54 ` [PATCH v3 02/10] drm/dp_mst: Move DRM-independent structures to separate header Paweł Anikiel
2024-05-07 15:54 ` [PATCH v3 03/10] lib: Move DisplayPort CRC functions to common lib Paweł Anikiel
2024-05-07 15:54 ` Paweł Anikiel [this message]
2024-05-07 15:54 ` [PATCH v3 05/10] media: dt-bindings: video-interfaces: Support DisplayPort MST Paweł Anikiel
2024-05-10 21:16 ` Rob Herring
2024-05-13 11:07 ` Paweł Anikiel
2024-05-13 14:56 ` Rob Herring (Arm)
2024-05-07 15:54 ` [PATCH v3 06/10] media: v4l2-mediabus: Add support for DisplayPort media bus Paweł Anikiel
2024-05-07 15:54 ` [PATCH v3 07/10] media: intel: Add Displayport RX IP driver Paweł Anikiel
2024-05-07 15:54 ` [PATCH v3 08/10] media: dt-bindings: Add Chameleon v3 video interface Paweł Anikiel
2024-05-10 21:25 ` Rob Herring (Arm)
2024-05-07 15:54 ` [PATCH v3 09/10] media: dt-bindings: Add Intel Displayport RX IP Paweł Anikiel
2024-05-10 21:24 ` Rob Herring
2024-05-13 10:39 ` Paweł Anikiel
2024-05-07 15:54 ` [PATCH v3 10/10] ARM: dts: chameleonv3: Add video device nodes Paweł Anikiel
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