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[82.243.161.21]) by smtp.googlemail.com with ESMTPSA id 4sm2883231wmg.22.2019.12.18.09.24.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Dec 2019 09:24:28 -0800 (PST) From: Jerome Brunet To: Mark Brown , Liam Girdwood Cc: Jerome Brunet , alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org, Kevin Hilman Subject: [PATCH 2/4] ASoC: meson: axg-fifo: add fifo depth to the bindings documentation Date: Wed, 18 Dec 2019 18:24:18 +0100 Message-Id: <20191218172420.1199117-3-jbrunet@baylibre.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191218172420.1199117-1-jbrunet@baylibre.com> References: <20191218172420.1199117-1-jbrunet@baylibre.com> MIME-Version: 1.0 X-Patchwork-Bot: notify Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a new property with the depth of the fifo in bytes. This is useful since some instance of the fifo, even on the same SoC, may have different depth. The depth is useful is set some parameters of the fifo. Signed-off-by: Jerome Brunet --- Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt b/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt index 3080979350a0..fa4545ed81ca 100644 --- a/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt +++ b/Documentation/devicetree/bindings/sound/amlogic,axg-fifo.txt @@ -17,6 +17,9 @@ Required properties: * "arb" : memory ARB line (required) * "rst" : dedicated device reset line (optional) - #sound-dai-cells: must be 0. +- amlogic,fifo-depth: The size of the controller's fifo in bytes. This + is useful for determining certain configuration such + as the flush threshold of the fifo Example of FRDDR A on the A113 SoC: @@ -27,4 +30,5 @@ frddr_a: audio-controller@1c0 { interrupts = ; clocks = <&clkc_audio AUD_CLKID_FRDDR_A>; resets = <&arb AXG_ARB_FRDDR_A>; + fifo-depth = <512>; }; -- 2.23.0