ASoC: Allow configuration of WM8904 GPIO pin functions

Provide platform data allowing the configuration of the GPIO pins
on the WM8904 to be selected, allowing alternate functions to be
enabled.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>

2 files changed, 12 insertions, 64 deletions

diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c
index 593e47d0e0eb..ce3f004217ae 100644
--- a/sound/soc/codecs/wm8904.c
+++ b/sound/soc/codecs/wm8904.c
@@ -2425,6 +2425,7 @@ EXPORT_SYMBOL_GPL(soc_codec_dev_wm8904);
 static int wm8904_register(struct wm8904_priv *wm8904,
                            enum snd_soc_control_type control)
 {
+        struct wm8904_pdata *pdata = wm8904->pdata;
         int ret;
         struct snd_soc_codec *codec = &wm8904->codec;
         int i;
@@ -2530,6 +2531,17 @@ static int wm8904_register(struct wm8904_priv *wm8904,
                 WM8904_LINEOUTRZC;
         wm8904->reg_cache[WM8904_CLOCK_RATES_0] &= ~WM8904_SR_MODE;
 
+        /* Apply configuration from the platform data. */
+        if (wm8904->pdata) {
+                for (i = 0; i < WM8904_GPIO_REGS; i++) {
+                        if (!pdata->gpio_cfg[i])
+                                continue;
+
+                        wm8904->reg_cache[WM8904_GPIO_CONTROL_1 + i]
+                                = pdata->gpio_cfg[i] & 0xffff;
+                }
+        }
+
         /* Set Class W by default - this will be managed by the Class
          * G widget at runtime where bypass paths are available.
          */
diff --git a/sound/soc/codecs/wm8904.h b/sound/soc/codecs/wm8904.h
index b68886df34e4..10603a75c1a5 100644
--- a/sound/soc/codecs/wm8904.h
+++ b/sound/soc/codecs/wm8904.h
@@ -1200,70 +1200,6 @@ extern struct snd_soc_codec_device soc_codec_dev_wm8904;
 #define WM8904_FLL_CLK_REF_SRC_WIDTH                 2  /* FLL_CLK_REF_SRC - [1:0] */
 
 /*
- * R121 (0x79) - GPIO Control 1
- */
-#define WM8904_GPIO1_PU                         0x0020  /* GPIO1_PU */
-#define WM8904_GPIO1_PU_MASK                    0x0020  /* GPIO1_PU */
-#define WM8904_GPIO1_PU_SHIFT                        5  /* GPIO1_PU */
-#define WM8904_GPIO1_PU_WIDTH                        1  /* GPIO1_PU */
-#define WM8904_GPIO1_PD                         0x0010  /* GPIO1_PD */
-#define WM8904_GPIO1_PD_MASK                    0x0010  /* GPIO1_PD */
-#define WM8904_GPIO1_PD_SHIFT                        4  /* GPIO1_PD */
-#define WM8904_GPIO1_PD_WIDTH                        1  /* GPIO1_PD */
-#define WM8904_GPIO1_SEL_MASK                   0x000F  /* GPIO1_SEL - [3:0] */
-#define WM8904_GPIO1_SEL_SHIFT                       0  /* GPIO1_SEL - [3:0] */
-#define WM8904_GPIO1_SEL_WIDTH                       4  /* GPIO1_SEL - [3:0] */
-
-/*
- * R122 (0x7A) - GPIO Control 2
- */
-#define WM8904_GPIO2_PU                         0x0020  /* GPIO2_PU */
-#define WM8904_GPIO2_PU_MASK                    0x0020  /* GPIO2_PU */
-#define WM8904_GPIO2_PU_SHIFT                        5  /* GPIO2_PU */
-#define WM8904_GPIO2_PU_WIDTH                        1  /* GPIO2_PU */
-#define WM8904_GPIO2_PD                         0x0010  /* GPIO2_PD */
-#define WM8904_GPIO2_PD_MASK                    0x0010  /* GPIO2_PD */
-#define WM8904_GPIO2_PD_SHIFT                        4  /* GPIO2_PD */
-#define WM8904_GPIO2_PD_WIDTH                        1  /* GPIO2_PD */
-#define WM8904_GPIO2_SEL_MASK                   0x000F  /* GPIO2_SEL - [3:0] */
-#define WM8904_GPIO2_SEL_SHIFT                       0  /* GPIO2_SEL - [3:0] */
-#define WM8904_GPIO2_SEL_WIDTH                       4  /* GPIO2_SEL - [3:0] */
-
-/*
- * R123 (0x7B) - GPIO Control 3
- */
-#define WM8904_GPIO3_PU                         0x0020  /* GPIO3_PU */
-#define WM8904_GPIO3_PU_MASK                    0x0020  /* GPIO3_PU */
-#define WM8904_GPIO3_PU_SHIFT                        5  /* GPIO3_PU */
-#define WM8904_GPIO3_PU_WIDTH                        1  /* GPIO3_PU */
-#define WM8904_GPIO3_PD                         0x0010  /* GPIO3_PD */
-#define WM8904_GPIO3_PD_MASK                    0x0010  /* GPIO3_PD */
-#define WM8904_GPIO3_PD_SHIFT                        4  /* GPIO3_PD */
-#define WM8904_GPIO3_PD_WIDTH                        1  /* GPIO3_PD */
-#define WM8904_GPIO3_SEL_MASK                   0x000F  /* GPIO3_SEL - [3:0] */
-#define WM8904_GPIO3_SEL_SHIFT                       0  /* GPIO3_SEL - [3:0] */
-#define WM8904_GPIO3_SEL_WIDTH                       4  /* GPIO3_SEL - [3:0] */
-
-/*
- * R124 (0x7C) - GPIO Control 4
- */
-#define WM8904_GPI7_ENA                         0x0200  /* GPI7_ENA */
-#define WM8904_GPI7_ENA_MASK                    0x0200  /* GPI7_ENA */
-#define WM8904_GPI7_ENA_SHIFT                        9  /* GPI7_ENA */
-#define WM8904_GPI7_ENA_WIDTH                        1  /* GPI7_ENA */
-#define WM8904_GPI8_ENA                         0x0100  /* GPI8_ENA */
-#define WM8904_GPI8_ENA_MASK                    0x0100  /* GPI8_ENA */
-#define WM8904_GPI8_ENA_SHIFT                        8  /* GPI8_ENA */
-#define WM8904_GPI8_ENA_WIDTH                        1  /* GPI8_ENA */
-#define WM8904_GPIO_BCLK_MODE_ENA               0x0080  /* GPIO_BCLK_MODE_ENA */
-#define WM8904_GPIO_BCLK_MODE_ENA_MASK          0x0080  /* GPIO_BCLK_MODE_ENA */
-#define WM8904_GPIO_BCLK_MODE_ENA_SHIFT              7  /* GPIO_BCLK_MODE_ENA */
-#define WM8904_GPIO_BCLK_MODE_ENA_WIDTH              1  /* GPIO_BCLK_MODE_ENA */
-#define WM8904_GPIO_BCLK_SEL_MASK               0x000F  /* GPIO_BCLK_SEL - [3:0] */
-#define WM8904_GPIO_BCLK_SEL_SHIFT                   0  /* GPIO_BCLK_SEL - [3:0] */
-#define WM8904_GPIO_BCLK_SEL_WIDTH                   4  /* GPIO_BCLK_SEL - [3:0] */
-
-/*
  * R126 (0x7E) - Digital Pulls
  */
 #define WM8904_MCLK_PU                          0x0080  /* MCLK_PU */