Hi Jyri,
A side question related to audio cape support on BBB. In the "official"
3.8.13 CircuitCo version the HDMI audio support was breaking the
audio-cape support due to some bad hacks in the mcasp driver.
Is this still the case with you series?
Thanks,
Benoit
On 19/11/2013 13:21, Jyri Sarha wrote:
Adds mcasp0_pins, clk_mcasp0_fixed, clk_mcasp0, mcasp0, hdmi_audio,
and sound nodes.
Signed-off-by: Jyri Sarha <jsarha@xxxxxx>
---
arch/arm/boot/dts/am335x-boneblack.dts | 52 ++++++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
index 6b71ad9..b5a2404 100644
--- a/arch/arm/boot/dts/am335x-boneblack.dts
+++ b/arch/arm/boot/dts/am335x-boneblack.dts
@@ -60,12 +60,35 @@
0x1b0 0x03 /* xdma_event_intr0, OMAP_MUX_MODE3 | AM33XX_PIN_OUTPUT */
>;
};
+
+ mcasp0_pins: mcasp0_pins {
+ pinctrl-single,pins = <
+ 0x1ac (PIN_INPUT_PULLUP | MUX_MODE0) /* mcasp0_ahclkx.mcasp0_ahclkx */
+ 0x19c (PIN_OUTPUT_PULLDOWN | MUX_MODE2) /* mcasp0_ahclkr.mcasp0_axr2 */
+ 0x194 (PIN_OUTPUT_PULLUP | MUX_MODE0) /* mcasp0_fsx.mcasp0_fsx */
+ 0x190 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mcasp0_aclkx.mcasp0_aclkx */
+ 0x06c (PIN_OUTPUT_PULLUP | MUX_MODE7) /* gpmc_a11.gpio1_27 */
+ >;
+ };
};
&lcdc {
status = "okay";
};
+&mcasp0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mcasp0_pins>;
+ status = "okay";
+ op-mode = <0>; /* MCASP_IIS_MODE */
+ tdm-slots = <2>;
+ serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */
+ 0 0 1 0
+ >;
+ tx-num-evt = <1>;
+ rx-num-evt = <1>;
+};
+
/ {
hdmi {
compatible = "ti,tilcdc,slave";
@@ -75,4 +98,33 @@
pinctrl-1 = <&nxp_hdmi_bonelt_off_pins>;
status = "okay";
};
+
+ clk_mcasp0_fixed: clk_mcasp0_fixed {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <24576000>;
+ };
+
+ clk_mcasp0: clk_mcasp0 {
+ #clock-cells = <0>;
+ compatible = "gpio-clock";
+ clocks = <&clk_mcasp0_fixed>;
+ enable-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>; /* BeagleBone Black Clk enable on GPIO1_27 */
+ };
+
+ hdmi_audio: hdmi_audio@0 {
+ compatible = "linux,hdmi-audio";
+ status = "okay";
+ };
+
+ sound {
+ compatible = "ti,am33xx-beaglebone-black";
+ ti,model = "TI BeagleBone Black";
+ ti,audio-codec = <&hdmi_audio>;
+ ti,mcasp-controller = <&mcasp0>;
+ ti,audio-routing =
+ "HDMI Out", "TX";
+ clocks = <&clk_mcasp0>;
+ clock-names = "ti,codec-clock";
+ };
};
--
Benoît Cousson
BayLibre
Embedded Linux Technology Lab
www.baylibre.com
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