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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-03-16 12:01:28 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-03-16 15:58:08 +0000
commitcdce4e9ba7ff86a5f43b971a9af88b25a3f6c9a4 (patch)
treef8993127b71fbdb23f092dcc54cb7021c0e49e47
parent7245387e36e16ae918467685c34510606fd74b7c (diff)
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>
-rw-r--r--include/sound/wm8904.h74
-rw-r--r--sound/soc/codecs/wm8904.c12
-rw-r--r--sound/soc/codecs/wm8904.h64
3 files changed, 84 insertions, 66 deletions
diff --git a/include/sound/wm8904.h b/include/sound/wm8904.h
index d66575a601be..ddeeebf7c426 100644
--- a/include/sound/wm8904.h
+++ b/include/sound/wm8904.h
@@ -15,8 +15,76 @@
#ifndef __MFD_WM8994_PDATA_H__
#define __MFD_WM8994_PDATA_H__
-#define WM8904_DRC_REGS 4
-#define WM8904_EQ_REGS 25
+/* Used to enable configuration of a GPIO to all zeros */
+#define WM8904_GPIO_NO_CONFIG 0x8000
+
+/*
+ * 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] */
+
+#define WM8904_GPIO_REGS 4
+#define WM8904_DRC_REGS 4
+#define WM8904_EQ_REGS 25
/**
* DRC configurations are specified with a label and a set of register
@@ -52,6 +120,8 @@ struct wm8904_pdata {
int num_retune_mobile_cfgs;
struct wm8904_retune_mobile_cfg *retune_mobile_cfgs;
+
+ u32 gpio_cfg[WM8904_GPIO_REGS];
};
#endif
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 */