ASoC: wm_hubs: Make sure we don't disable differential line outputs
Mark Brown [Tue, 17 Apr 2012 19:28:10 +0000 (20:28 +0100)]
While we need to clean up unused single ended line outputs we don't want
to do this if the outputs are in differential mode.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/wm_hubs.c

index f13f288..6c028c4 100644 (file)
@@ -1035,7 +1035,7 @@ void wm_hubs_set_bias_level(struct snd_soc_codec *codec,
                            enum snd_soc_bias_level level)
 {
        struct wm_hubs_data *hubs = snd_soc_codec_get_drvdata(codec);
-       int val;
+       int mask, val;
 
        switch (level) {
        case SND_SOC_BIAS_STANDBY:
@@ -1047,6 +1047,13 @@ void wm_hubs_set_bias_level(struct snd_soc_codec *codec,
        case SND_SOC_BIAS_ON:
                /* Turn off any unneded single ended outputs */
                val = 0;
+               mask = 0;
+
+               if (hubs->lineout1_se)
+                       mask |= WM8993_LINEOUT1N_ENA | WM8993_LINEOUT1P_ENA;
+
+               if (hubs->lineout2_se)
+                       mask |= WM8993_LINEOUT2N_ENA | WM8993_LINEOUT2P_ENA;
 
                if (hubs->lineout1_se && hubs->lineout1n_ena)
                        val |= WM8993_LINEOUT1N_ENA;
@@ -1061,11 +1068,7 @@ void wm_hubs_set_bias_level(struct snd_soc_codec *codec,
                        val |= WM8993_LINEOUT2P_ENA;
 
                snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_3,
-                                   WM8993_LINEOUT1N_ENA |
-                                   WM8993_LINEOUT1P_ENA |
-                                   WM8993_LINEOUT2N_ENA |
-                                   WM8993_LINEOUT2P_ENA,
-                                   val);
+                                   mask, val);
 
                /* Remove the input clamps */
                snd_soc_update_bits(codec, WM8993_INPUTS_CLAMP_REG,