Merge remote-tracking branches 'asoc/topic/ak4613', 'asoc/topic/ak4642', 'asoc/topic...
[muen/linux.git] / sound / soc / codecs / cs35l35.c
index f8aef5869b03afad906a0159f5836655f7495c51..f1ee184ecab2994424cdca4a6d9a1bbfd526bd5f 100644 (file)
@@ -162,6 +162,14 @@ static bool cs35l35_precious_register(struct device *dev, unsigned int reg)
        }
 }
 
+static void cs35l35_reset(struct cs35l35_private *cs35l35)
+{
+       gpiod_set_value_cansleep(cs35l35->reset_gpio, 0);
+       usleep_range(2000, 2100);
+       gpiod_set_value_cansleep(cs35l35->reset_gpio, 1);
+       usleep_range(1000, 1100);
+}
+
 static int cs35l35_wait_for_pdn(struct cs35l35_private *cs35l35)
 {
        int ret;
@@ -756,6 +764,76 @@ static int cs35l35_codec_set_sysclk(struct snd_soc_codec *codec,
        return ret;
 }
 
+static int cs35l35_boost_inductor(struct cs35l35_private *cs35l35,
+                                 int inductor)
+{
+       struct regmap *regmap = cs35l35->regmap;
+       unsigned int bst_ipk = 0;
+
+       /*
+        * Digital Boost Converter Configuration for feedback,
+        * ramping, switching frequency, and estimation block seeding.
+        */
+
+       regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
+                          CS35L35_BST_CONV_SWFREQ_MASK, 0x00);
+
+       regmap_read(regmap, CS35L35_BST_PEAK_I, &bst_ipk);
+       bst_ipk &= CS35L35_BST_IPK_MASK;
+
+       switch (inductor) {
+       case 1000: /* 1 uH */
+               regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x24);
+               regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x24);
+               regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
+                                  CS35L35_BST_CONV_LBST_MASK, 0x00);
+
+               if (bst_ipk < 0x04)
+                       regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B);
+               else
+                       regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x4E);
+               break;
+       case 1200: /* 1.2 uH */
+               regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x20);
+               regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x20);
+               regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
+                                  CS35L35_BST_CONV_LBST_MASK, 0x01);
+
+               if (bst_ipk < 0x04)
+                       regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B);
+               else
+                       regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x47);
+               break;
+       case 1500: /* 1.5uH */
+               regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x20);
+               regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x20);
+               regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
+                                  CS35L35_BST_CONV_LBST_MASK, 0x02);
+
+               if (bst_ipk < 0x04)
+                       regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B);
+               else
+                       regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x3C);
+               break;
+       case 2200: /* 2.2uH */
+               regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x19);
+               regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x25);
+               regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ,
+                                  CS35L35_BST_CONV_LBST_MASK, 0x03);
+
+               if (bst_ipk < 0x04)
+                       regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B);
+               else
+                       regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x23);
+               break;
+       default:
+               dev_err(cs35l35->dev, "Invalid Inductor Value %d uH\n",
+                       inductor);
+               return -EINVAL;
+       }
+       return 0;
+}
+
 static int cs35l35_codec_probe(struct snd_soc_codec *codec)
 {
        struct cs35l35_private *cs35l35 = snd_soc_codec_get_drvdata(codec);
@@ -775,6 +853,10 @@ static int cs35l35_codec_probe(struct snd_soc_codec *codec)
                                cs35l35->pdata.bst_ipk <<
                                CS35L35_BST_IPK_SHIFT);
 
+       ret = cs35l35_boost_inductor(cs35l35, cs35l35->pdata.boost_ind);
+       if (ret)
+               return ret;
+
        if (cs35l35->pdata.gain_zc)
                regmap_update_bits(cs35l35->regmap, CS35L35_PROTECT_CTL,
                                CS35L35_AMP_GAIN_ZC_MASK,
@@ -1195,7 +1277,15 @@ static int cs35l35_handle_of_data(struct i2c_client *i2c_client,
                        return -EINVAL;
                }
 
-               pdata->bst_ipk = (val32 - 1680) / 110;
+               pdata->bst_ipk = ((val32 - 1680) / 110) | CS35L35_VALID_PDATA;
+       }
+
+       ret = of_property_read_u32(np, "cirrus,boost-ind-nanohenry", &val32);
+       if (ret >= 0) {
+               pdata->boost_ind = val32;
+       } else {
+               dev_err(&i2c_client->dev, "Inductor not specified.\n");
+               return -EINVAL;
        }
 
        if (of_property_read_u32(np, "cirrus,sp-drv-strength", &val32) >= 0)
@@ -1454,7 +1544,7 @@ static int cs35l35_i2c_probe(struct i2c_client *i2c_client,
                }
        }
 
-       gpiod_set_value_cansleep(cs35l35->reset_gpio, 1);
+       cs35l35_reset(cs35l35);
 
        init_completion(&cs35l35->pdn_done);