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ASoC: Allow configuration of WM8904 GPIO pin functions
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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>
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Mark Brown committed Mar 16, 2010
1 parent 7245387 commit cdce4e9
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Showing 3 changed files with 84 additions and 66 deletions.
74 changes: 72 additions & 2 deletions include/sound/wm8904.h
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Original file line number Diff line number Diff line change
Expand Up @@ -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
Expand Down Expand Up @@ -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
12 changes: 12 additions & 0 deletions sound/soc/codecs/wm8904.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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;
Expand Down Expand Up @@ -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.
*/
Expand Down
64 changes: 0 additions & 64 deletions sound/soc/codecs/wm8904.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1199,70 +1199,6 @@ extern struct snd_soc_codec_device soc_codec_dev_wm8904;
#define WM8904_FLL_CLK_REF_SRC_SHIFT 0 /* FLL_CLK_REF_SRC - [1:0] */
#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
*/
Expand Down

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