From mboxrd@z Thu Jan 1 00:00:00 1970 From: Simran Rai Subject: [PATCH v2 1/2] dt-bindings: sound: Add DT bindings for Broadcom Cygnus audio Date: Mon, 2 Nov 2015 14:11:23 -0800 Message-ID: <1446502284-23907-2-git-send-email-ssimran@broadcom.com> References: <1446502284-23907-1-git-send-email-ssimran@broadcom.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1446502284-23907-1-git-send-email-ssimran-dY08KVG/lbpWk0Htik3J/w@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Ray Jui , Scott Branden , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai Cc: Simran Rai , Lori Hikichi , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, bcm-kernel-feedback-list-dY08KVG/lbpWk0Htik3J/w@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Arun Parameswaran , alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org List-Id: devicetree@vger.kernel.org Add bindings for audio driver in Broadcom Cygnus. Signed-off-by: Lori Hikichi Signed-off-by: Simran Rai Reviewed-by: Ray Jui Reviewed-by: Scott Branden --- .../bindings/sound/brcm,cygnus-audio.txt | 63 ++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/brcm,cygnus-audio.txt diff --git a/Documentation/devicetree/bindings/sound/brcm,cygnus-audio.txt b/Documentation/devicetree/bindings/sound/brcm,cygnus-audio.txt new file mode 100644 index 0000000..73cddb3 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/brcm,cygnus-audio.txt @@ -0,0 +1,63 @@ +BROADCOM Cygnus Audio I2S/TDM/SPDIF controller + +Required properties: + - compatible : "brcm,cygnus-audio" + - #address-cells: 32bit valued, 1 cell. + - #size-cells: 32bit valued, 0 cell. + - reg : Should contain audio registers location and length + - reg-names: names of the registers listed in "reg" property + Valid names are "aud" and "i2s_in". "aud" contains a + set of DMA, I2S_OUT and SPDIF registers. "i2s_in" contains + a set of I2S_IN registers. + - clocks: PLL and leaf clocks used by audio ports + - clock-names: names of 3 leaf clocks used by audio ports + Valid names are "ch0_audio", "ch1_audio", "ch2_audio" + - interrupts: audio DMA interrupt number + +SSP Subnode properties: +- reg: The index of ssp port interface to use + Valid value are 0, 1, 2, or 3 (for spdif) +- channel-group: Surround sound grouping that controls which channel + outputs belong to a group, specifically useful in Multi-channel + Interfaces grouping of serial port. In multi-channel stereo, use + "2_0", in 3.1 multi-channel grouping, use "3_1" and in 5.1 + multi-channel grouping, use "5_1". + + +Example: + cygnus_audio: audio@180ae000 { + compatible = "brcm,cygnus-audio"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x180ae000 0xafd>, <0x180aec00 0x1f8>; + reg-names = "aud", "i2s_in"; + clocks = <&audiopll BCM_CYGNUS_AUDIOPLL_CH0>, + <&audiopll BCM_CYGNUS_AUDIOPLL_CH1>, + <&audiopll BCM_CYGNUS_AUDIOPLL_CH2>; + clock-names = "ch0_audio", "ch1_audio", "ch2_audio"; + interrupts = ; + + ssp0: ssp_port@0 { + reg = <0>; + channel-group = "2_0"; /* Use 2_0, 3_1, 5_1 */ + status = "okay"; + }; + + ssp1: ssp_port@1 { + reg = <1>; + channel-group = "2_0"; /* Use 2_0, 3_1, 5_1 */ + status = "disabled"; + }; + + ssp2: ssp_port@2 { + reg = <2>; + channel-group = "2_0"; /* Use 2_0, 3_1, 5_1 */ + status = "disabled"; + }; + + spdif: spdif_port@3 { + reg = <3>; + channel-group = "2_0"; /* Use 2_0, 3_1, 5_1 */ + status = "disabled"; + }; + }; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html