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Date: Sun, 10 Feb 2013 20:51:57 +0530
From: Anil Kumar <anilk4.v@...il.com>
To: linux-kernel@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org,
alsa-devel@...a-project.org
Cc: tony@...mide.com, thomas@...weber.eu, perex@...ex.cz,
tiwai@...e.de, lrg@...com, Peter Ujfalusi <peter.ujfalusi@...com>
Subject: Sound record on Devkit8000 with DT boot issue
Hi All,
I am working on Devkit8000 and adding DT support for that. I am trying
to add sound DT node support for this boards.
I have nearly done with this but facing issue on record. I do not have
much knowledge of twl4030 audio codec but with
small Hack[1] (as MainMic connected to the input jack) i am able to
record sound on Devkit8000.
I do not know that MICBIAS1_EN can be enable by amixer commands.
Could you please help me to get out of this ?
1) Hack [1]
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index 63b280b..6780681 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -1473,7 +1473,7 @@ static const struct snd_soc_dapm_widget
twl4030_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("micbias2 select", TWL4030_REG_MICBIAS_CTL, 6, 0,
NULL, 0),
- SND_SOC_DAPM_MICBIAS("Mic Bias 1", TWL4030_REG_MICBIAS_CTL, 0, 0),
+ SND_SOC_DAPM_MICBIAS("Mic Bias 1", TWL4030_REG_MICBIAS_CTL, 0, 1),
SND_SOC_DAPM_MICBIAS("Mic Bias 2", TWL4030_REG_MICBIAS_CTL, 1, 0),
SND_SOC_DAPM_MICBIAS("Headset Mic Bias", TWL4030_REG_MICBIAS_CTL, 2, 0),
2) Sound DT node patch for Devkit8000
diff --git a/arch/arm/boot/dts/omap3-
devkit8000.dts b/arch/arm/boot/dts/omap3-devkit8000.dts
index dc59272..5f3eec0 100644
--- a/arch/arm/boot/dts/omap3-devkit8000.dts
+++ b/arch/arm/boot/dts/omap3-devkit8000.dts
@@ -44,11 +44,22 @@
};
};
+
+ sound {
+ compatible = "ti,omap-twl4030";
+ ti,model = "devkit8000";
+
+ ti,mcbsp = <&mcbsp2>;
+ ti,codec = <&twl_audio>;
+ };
};
&omap3_pmx_core {
pinctrl-names = "default";
- pinctrl-0 = <&i2c1_pins>;
+ pinctrl-0 = <
+ &i2c1_pins
+ &mcbsp2_pins
+ >;
leds_pins: pinmux_led_pins {
pinctrl-single,pins = <
@@ -65,6 +76,21 @@
0x18c 0x118 /* I2C1_SDA */
>;
};
+
+ mcbsp2_pins: pinmux_mcbsp2_pins {
+ pinctrl-single,pins = <
+ /*
+ * MCBSP2_FSX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT,
+ * MCBSP2_CLKX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT
+ */
+ 0x10c 0x01000100
+ /*
+ * MCBSP2_DR, OMAP_MUX_MODE0 | OMAP_PIN_INPUT,
+ * MCBSP2_DX, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT
+ */
+ 0x110 0x00000100
+ >;
+ };
};
&i2c1 {
@@ -74,6 +100,14 @@
reg = <0x48>;
interrupts = <7>; /* SYS_NIRQ cascaded to intc */
interrupt-parent = <&intc>;
+
+ twl_audio: audio {
+ compatible = "ti,twl4030-audio";
+ codec {
+ ti,ramp_delay_value = <3>;
+ ti,offset_cncl_path = <0x31>;
+ };
+ };
};
};
3) Playback amixer commands
amixer set 'PredriveR Mixer AudioR2' on
amixer set 'PredriveL Mixer AudioL2' on
amixer set PreDriv 100 unmute
amixer set 'DAC2 Digital Fine' 100
Thanks,
Anil
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