rk2928 codec: add speaker control.

diff --git a/sound/soc/codecs/rk2928_codec.c b/sound/soc/codecs/rk2928_codec.c
index 5a2fe5dc4d331cfdd20a6d0cac602c9adab12106..54a75a2ec61c05eef81b52eeb203de68ee56d9eb 100755 (executable)
--- a/sound/soc/codecs/rk2928_codec.c
+++ b/sound/soc/codecs/rk2928_codec.c
@@ -41,6 +41,8 @@
 
 #include "rk2928_codec.h"
 
+#define SPK_CTL        RK2928_PIN1_PA0
+
 static struct rk2928_codec_data {
        struct device   *dev;
        int                     regbase;
@@ -147,6 +149,9 @@ static int rk2928_audio_trigger(struct snd_pcm_substream *substream, int cmd,
                                if(!rk2928_data.hdmi_enable)
                                        rk2928_write(codec, CODEC_REG_DAC_MUTE, v_MUTE_DAC(0));
                                rk2928_data.mute = 0;
+                               if(SPK_CTL != INVALID_GPIO) {
+                                       gpio_direction_output(SPK_CTL, GPIO_HIGH);
+                               }
                        }
                        else {
                                rk2928_write(codec, CODEC_REG_ADC_PGA_GAIN, 0xFF);
@@ -158,6 +163,9 @@ static int rk2928_audio_trigger(struct snd_pcm_substream *substream, int cmd,
                case SNDRV_PCM_TRIGGER_SUSPEND:
                case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
                        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+                               if(SPK_CTL != INVALID_GPIO) {
+                                       gpio_direction_output(SPK_CTL, GPIO_LOW);
+                               }
                                rk2928_write(codec, CODEC_REG_DAC_MUTE, v_MUTE_DAC(1));
                                rk2928_data.mute = 1;
                        }
@@ -241,6 +249,14 @@ static int rk2928_probe(struct snd_soc_codec *codec)
        // Select SDI input from internal audio codec
        writel(0x04000400, RK2928_GRF_BASE + GRF_SOC_CON0);
        
+       if(SPK_CTL != INVALID_GPIO) {
+               ret = gpio_request(SPK_CTL, NULL);
+               if (ret != 0) {
+                       gpio_free(SPK_CTL);
+               }
+               else
+                       gpio_direction_output(SPK_CTL, GPIO_LOW);
+       }
        // Mute and Power off codec
        rk2928_write(codec, CODEC_REG_DAC_MUTE, v_MUTE_DAC(1));
        rk2928_set_bias_level(codec, SND_SOC_BIAS_OFF);