From: Tzung-Bi Shih <tzungbi@google.com>
To: broonie@kernel.org
Cc: gwendal@google.com, devicetree@vger.kernel.org,
alsa-devel@alsa-project.org, cychiang@google.com,
drinkcat@google.com, tzungbi@google.com, robh+dt@kernel.org,
enric.balletbo@collabora.com, bleung@google.com,
dgreid@google.com
Subject: [alsa-devel] [PATCH v2 06/10] ASoC: dt-bindings: cros_ec_codec: add SHM bindings
Date: Sat, 5 Oct 2019 16:55:05 +0800 [thread overview]
Message-ID: <20191005164320.06.I0df85fe54162426e31f60a589d9b461c65df2faa@changeid> (raw)
In-Reply-To: <20191005085509.187179-1-tzungbi@google.com>
- Add "ec-shm" for binding to shared memory exposed by EC.
- Add "memory-region" for binding to memory region shared by AP.
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
---
.../bindings/sound/google,cros-ec-codec.txt | 20 +++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt b/Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt
index 0ce9fafc78e2..cb46bc082b4b 100644
--- a/Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt
+++ b/Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt
@@ -10,8 +10,26 @@ Required properties:
- compatible: Must contain "google,cros-ec-codec"
- #sound-dai-cells: Should be 1. The cell specifies number of DAIs.
+Optional properties:
+- ec-shm: Shared memory region from EC. It contains 3 unsigned 32-bit
+ integer. The first 2 integers combine to become an unsigned
+ 64-bit address. The last one integer is length of the shared
+ memory.
+- memory-region: Shared memory region to EC. A "shared-dma-pool". See
+ ../reserved-memory/reserved-memory.txt for details.
+
Example:
+{
+ ...
+
+ reserved_mem: reserved_mem {
+ compatible = "shared-dma-pool";
+ reg = <0 0x52800000 0 0x100000>;
+ no-map;
+ };
+}
+
cros-ec@0 {
compatible = "google,cros-ec-spi";
@@ -20,5 +38,7 @@ cros-ec@0 {
cros_ec_codec: ec-codec {
compatible = "google,cros-ec-codec";
#sound-dai-cells = <1>;
+ ec-shm = <0x0 0x10500000 0x80000>;
+ memory-region = <&reserved_mem>;
};
};
--
2.23.0.581.g78d2f28ef7-goog
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next prev parent reply other threads:[~2019-10-05 9:00 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-05 8:54 [alsa-devel] [PATCH v2 00/10] ASoC: mediatek: mt8183-mt6358-ts3a227-max98357: support WoV Tzung-Bi Shih
2019-10-05 8:55 ` [alsa-devel] [PATCH v2 01/10] platform/chrome: cros_ec: remove unused EC feature Tzung-Bi Shih
2019-10-05 8:55 ` [alsa-devel] [PATCH v2 02/10] ASoC: cros_ec_codec: refactor I2S RX Tzung-Bi Shih
2019-10-05 8:55 ` [alsa-devel] [PATCH v2 03/10] ASoC: cros_ec_codec: extract DMIC EC command from " Tzung-Bi Shih
2019-10-05 8:55 ` [alsa-devel] [PATCH v2 04/10] platform/chrome: cros_ec: add common commands for EC codec Tzung-Bi Shih
2019-10-05 8:55 ` [alsa-devel] [PATCH v2 05/10] ASoC: cros_ec_codec: read max DMIC gain from " Tzung-Bi Shih
2019-10-11 15:14 ` Rob Herring
2019-10-05 8:55 ` Tzung-Bi Shih [this message]
2019-10-11 15:13 ` [alsa-devel] [PATCH v2 06/10] ASoC: dt-bindings: cros_ec_codec: add SHM bindings Rob Herring
2019-10-05 8:55 ` [alsa-devel] [PATCH v2 07/10] ASoC: cros_ec_codec: support WoV Tzung-Bi Shih
2019-10-05 16:53 ` kbuild test robot
2019-10-07 7:04 ` Tzung-Bi Shih
2019-10-09 7:25 ` [alsa-devel] [kbuild-all] " Rong Chen
2019-10-14 10:26 ` Tzung-Bi Shih
2019-10-05 8:55 ` [alsa-devel] [PATCH v2 08/10] ASoC: mediatek: mt6358: " Tzung-Bi Shih
2019-10-05 8:55 ` [alsa-devel] [PATCH v2 09/10] ASoC: dt-bindings: mt8183: add ec-codec Tzung-Bi Shih
2019-10-11 15:20 ` Rob Herring
2019-10-12 15:15 ` Tzung-Bi Shih
2019-10-05 8:55 ` [alsa-devel] [PATCH v2 10/10] ASoC: mediatek: mt8183: support WoV Tzung-Bi Shih
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