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received-spf: None (protection.outlook.com: microchip.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: S92wkejXv3SLp4E/nR3vW6SHSYh2reijL0r8jYkAm+bg6QpjAJMogEvbn61/+xtcWj+N7T5/9iaIkdvvcpJEV0DJxZ3qC+/ybFHfLwKVM/4eQgBJdi1IwtayOJrydTsb9/gxNPdW2z+AqmbB5lqCr/1Y2zC7FcRbywQ1zKLcZuJVabfqgeElZiIknFNANg/a6V0vBkseXDjh5DYUBiK/vhA9jiO8eJe4HXI5TfQIlYVWj9E0kiRQY8pdVUPjAV1bX44UEg/RN3Aa6E+VfQbukZM5U/4fz7ixX2ZWcHUjKW3d/S6NMB/qb3AJE80nYGs6mkrdr2Sg6+/eaqgiAMnnset6ihAsBA9MwsrwTpp3lqQCJaILoo4IKeRsHbtULUnGpQHLLrCBNeNudQsl5yh5/ljyIYNAYSxIqmmsFWLttJ4= Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: cb3ab6a8-160e-4ef0-bd96-08d6a15d7113 X-MS-Exchange-CrossTenant-originalarrivaltime: 05 Mar 2019 11:26:42.4516 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3f4057f3-b418-4d4e-ba84-d55b4e897d88 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR11MB1382 X-OriginatorOrg: microchip.com Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Codrin Ciubotariu This patch adds DT bindings for the new Microchip I2S Multi-Channel controller embedded inside sam9x60 SoCs. Signed-off-by: Codrin Ciubotariu --- .../bindings/sound/mchp-i2s-mcc.txt | 43 +++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/mchp-i2s-mcc.tx= t diff --git a/Documentation/devicetree/bindings/sound/mchp-i2s-mcc.txt b/Doc= umentation/devicetree/bindings/sound/mchp-i2s-mcc.txt new file mode 100644 index 000000000000..91ec83a6faed --- /dev/null +++ b/Documentation/devicetree/bindings/sound/mchp-i2s-mcc.txt @@ -0,0 +1,43 @@ +* Microchip I2S Multi-Channel Controller + +Required properties: +- compatible: Should be "microchip,sam9x60-i2smcc". +- reg: Should be the physical base address of the controller an= d the + length of memory mapped region. +- interrupts: Should contain the interrupt for the controller. +- dmas: Should be one per channel name listed in the dma-names p= roperty, + as described in atmel-dma.txt and dma.txt files. +- dma-names: Identifier string for each DMA request line in the dmas = property. + Two dmas have to be defined, "tx" and "rx". +- clocks: Must contain an entry for each entry in clock-names. + Please refer to clock-bindings.txt. +- clock-names: Should be one of each entry matching the clocks phandles= list: + - "pclk" (peripheral clock) Required. + - "gclk" (generated clock) Optional (1). + +Optional properties: +- pinctrl-0: Should specify pin control groups used for this controll= er. +- princtrl-names: Should contain only one value - "default". + + +(1) : Only the peripheral clock is required. The generated clock is option= al + and should be set mostly when Master Mode is required. + +Example: + + i2s@f001c000 { + compatible =3D "microchip,sam9x60-i2smcc"; + reg =3D <0xf001c000 0x100>; + interrupts =3D <34 IRQ_TYPE_LEVEL_HIGH 7>; + dmas =3D <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(36))>, + <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | + AT91_XDMAC_DT_PERID(37))>; + dma-names =3D "tx", "rx"; + clocks =3D <&i2s_clk>, <&i2s_gclk>; + clock-names =3D "pclk", "gclk"; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&pinctrl_i2s_default>; + }; --=20 2.17.1