On Wed, 10 Aug 2016, Sylwester Nawrocki wrote:
This patch adds documentation of the DT bindings for the Samsung Exynos SoC Low Power Audio Subsystem.
Signed-off-by: Sylwester Nawrocki s.nawrocki@samsung.com Acked-by: Rob Herring robh@kernel.org
Changes since v5:
- none.
Changes since v4:
- text reformatting, added VIC to the list of sub-devices, relative paths used for the reference DT binding documentation files, added example dts.
Changes since v3:
- moved to Documentation/devicetree/bindings/mfd,
- added #address-cells, #size-cells, ranges as required properties,
- added description of the IP block subnodes and links to their binding's documentation.
Changes since v2:
- none.
.../bindings/mfd/samsung,exynos5433-lpass.txt | 70 ++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.txt
Applied, thanks.
diff --git a/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.txt b/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.txt new file mode 100644 index 0000000..c110e11 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/samsung,exynos5433-lpass.txt @@ -0,0 +1,70 @@ +Samsung Exynos SoC Low Power Audio Subsystem (LPASS)
+Required properties:
- compatible : "samsung,exynos5433-lpass"
- reg : should contain the LPASS top SFR region location
and size
- samsung,pmu-syscon : the phandle to the Power Management Unit node
- #address-cells : should be 1
- #size-cells : should be 1
- ranges : must be present
+Each IP block of the Low Power Audio Subsystem should be specified as +an optional sub-node. For "samsung,exynos5433-lpass" compatible this includes: +UART, SLIMBUS, PCM, I2S, DMAC, Timers 0...4, VIC, WDT 0...1 devices.
+Bindings of the sub-nodes are described in:
- ../serial/samsung_uart.txt
- ../sound/samsung-i2s.txt
- ../dma/arm-pl330.txt
+Example:
+audio-subsystem {
- compatible = "samsung,exynos5433-lpass";
- reg = <0x11400000 0x100>, <0x11500000 0x08>;
- samsung,pmu-syscon = <&pmu_system_controller>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
- adma: adma@11420000 {
compatible = "arm,pl330", "arm,primecell";reg = <0x11420000 0x1000>;interrupts = <0 73 0>;clocks = <&cmu_aud CLK_ACLK_DMAC>;clock-names = "apb_pclk";#dma-cells = <1>;#dma-channels = <8>;#dma-requests = <32>;- };
- i2s0: i2s0@11440000 {
compatible = "samsung,exynos7-i2s";reg = <0x11440000 0x100>;dmas = <&adma 0 &adma 2>;dma-names = "tx", "rx";interrupts = <0 70 0>;clocks = <&cmu_aud CLK_PCLK_AUD_I2S>,<&cmu_aud CLK_SCLK_AUD_I2S>,<&cmu_aud CLK_SCLK_I2S_BCLK>;clock-names = "iis", "i2s_opclk0", "i2s_opclk1";pinctrl-names = "default";pinctrl-0 = <&i2s0_bus>;status = "disabled";- };
- serial_3: serial@11460000 {
compatible = "samsung,exynos5433-uart";reg = <0x11460000 0x100>;interrupts = <0 67 0>;clocks = <&cmu_aud CLK_PCLK_AUD_UART>,<&cmu_aud CLK_SCLK_AUD_UART>;clock-names = "uart", "clk_uart_baud0";pinctrl-names = "default";pinctrl-0 = <&uart_aud_bus>;status = "disabled";- };
- };