From 559e0df6b3ffbc218a11bb9dada5320a217cb7a6 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 31 Aug 2010 19:25:12 +0100 Subject: mfd: Add initial WM8958 support The WM8958 is a derivative of the WM8994 which is register compatible with the addition of some extra features, mostly in the CODEC side. The major change visible at the MFD level is that rather than a single DBVDD supply we now have three separate DBVDDs so we must request and enable a different set of supplies. Signed-off-by: Mark Brown Acked-by: Samuel Ortiz Acked-by: Liam Girdwood --- drivers/mfd/wm8994-core.c | 93 +++++++++++++++++++++++++++++++++++++---------- 1 file changed, 74 insertions(+), 19 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c index b3b2aaf89db..8d221ba5e38 100644 --- a/drivers/mfd/wm8994-core.c +++ b/drivers/mfd/wm8994-core.c @@ -218,6 +218,18 @@ static const char *wm8994_main_supplies[] = { "SPKVDD2", }; +static const char *wm8958_main_supplies[] = { + "DBVDD1", + "DBVDD2", + "DBVDD3", + "DCVDD", + "AVDD1", + "AVDD2", + "CPVDD", + "SPKVDD1", + "SPKVDD2", +}; + #ifdef CONFIG_PM static int wm8994_device_suspend(struct device *dev) { @@ -239,7 +251,7 @@ static int wm8994_device_suspend(struct device *dev) if (ret < 0) dev_err(dev, "Failed to save LDO registers: %d\n", ret); - ret = regulator_bulk_disable(ARRAY_SIZE(wm8994_main_supplies), + ret = regulator_bulk_disable(wm8994->num_supplies, wm8994->supplies); if (ret != 0) { dev_err(dev, "Failed to disable supplies: %d\n", ret); @@ -254,7 +266,7 @@ static int wm8994_device_resume(struct device *dev) struct wm8994 *wm8994 = dev_get_drvdata(dev); int ret; - ret = regulator_bulk_enable(ARRAY_SIZE(wm8994_main_supplies), + ret = regulator_bulk_enable(wm8994->num_supplies, wm8994->supplies); if (ret != 0) { dev_err(dev, "Failed to enable supplies: %d\n", ret); @@ -305,9 +317,10 @@ static int wm8994_ldo_in_use(struct wm8994_pdata *pdata, int ldo) /* * Instantiate the generic non-control parts of the device. */ -static int wm8994_device_init(struct wm8994 *wm8994, unsigned long id, int irq) +static int wm8994_device_init(struct wm8994 *wm8994, int irq) { struct wm8994_pdata *pdata = wm8994->dev->platform_data; + const char *devname; int ret, i; mutex_init(&wm8994->io_lock); @@ -323,25 +336,48 @@ static int wm8994_device_init(struct wm8994 *wm8994, unsigned long id, int irq) goto err; } + switch (wm8994->type) { + case WM8994: + wm8994->num_supplies = ARRAY_SIZE(wm8994_main_supplies); + break; + case WM8958: + wm8994->num_supplies = ARRAY_SIZE(wm8958_main_supplies); + break; + default: + BUG(); + return -EINVAL; + } + wm8994->supplies = kzalloc(sizeof(struct regulator_bulk_data) * - ARRAY_SIZE(wm8994_main_supplies), + wm8994->num_supplies, GFP_KERNEL); if (!wm8994->supplies) { ret = -ENOMEM; goto err; } - for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++) - wm8994->supplies[i].supply = wm8994_main_supplies[i]; - - ret = regulator_bulk_get(wm8994->dev, ARRAY_SIZE(wm8994_main_supplies), + switch (wm8994->type) { + case WM8994: + for (i = 0; i < ARRAY_SIZE(wm8994_main_supplies); i++) + wm8994->supplies[i].supply = wm8994_main_supplies[i]; + break; + case WM8958: + for (i = 0; i < ARRAY_SIZE(wm8958_main_supplies); i++) + wm8994->supplies[i].supply = wm8958_main_supplies[i]; + break; + default: + BUG(); + return -EINVAL; + } + + ret = regulator_bulk_get(wm8994->dev, wm8994->num_supplies, wm8994->supplies); if (ret != 0) { dev_err(wm8994->dev, "Failed to get supplies: %d\n", ret); goto err_supplies; } - ret = regulator_bulk_enable(ARRAY_SIZE(wm8994_main_supplies), + ret = regulator_bulk_enable(wm8994->num_supplies, wm8994->supplies); if (ret != 0) { dev_err(wm8994->dev, "Failed to enable supplies: %d\n", ret); @@ -353,7 +389,22 @@ static int wm8994_device_init(struct wm8994 *wm8994, unsigned long id, int irq) dev_err(wm8994->dev, "Failed to read ID register\n"); goto err_enable; } - if (ret != 0x8994) { + switch (ret) { + case 0x8994: + devname = "WM8994"; + if (wm8994->type != WM8994) + dev_warn(wm8994->dev, "Device registered as type %d\n", + wm8994->type); + wm8994->type = WM8994; + break; + case 0x8958: + devname = "WM8958"; + if (wm8994->type != WM8958) + dev_warn(wm8994->dev, "Device registered as type %d\n", + wm8994->type); + wm8994->type = WM8958; + break; + default: dev_err(wm8994->dev, "Device is not a WM8994, ID is %x\n", ret); ret = -EINVAL; @@ -370,14 +421,16 @@ static int wm8994_device_init(struct wm8994 *wm8994, unsigned long id, int irq) switch (ret) { case 0: case 1: - dev_warn(wm8994->dev, "revision %c not fully supported\n", - 'A' + ret); + if (wm8994->type == WM8994) + dev_warn(wm8994->dev, + "revision %c not fully supported\n", + 'A' + ret); break; default: - dev_info(wm8994->dev, "revision %c\n", 'A' + ret); break; } + dev_info(wm8994->dev, "%s revision %c\n", devname, 'A' + ret); if (pdata) { wm8994->irq_base = pdata->irq_base; @@ -423,10 +476,10 @@ static int wm8994_device_init(struct wm8994 *wm8994, unsigned long id, int irq) err_irq: wm8994_irq_exit(wm8994); err_enable: - regulator_bulk_disable(ARRAY_SIZE(wm8994_main_supplies), + regulator_bulk_disable(wm8994->num_supplies, wm8994->supplies); err_get: - regulator_bulk_free(ARRAY_SIZE(wm8994_main_supplies), wm8994->supplies); + regulator_bulk_free(wm8994->num_supplies, wm8994->supplies); err_supplies: kfree(wm8994->supplies); err: @@ -439,9 +492,9 @@ static void wm8994_device_exit(struct wm8994 *wm8994) { mfd_remove_devices(wm8994->dev); wm8994_irq_exit(wm8994); - regulator_bulk_disable(ARRAY_SIZE(wm8994_main_supplies), + regulator_bulk_disable(wm8994->num_supplies, wm8994->supplies); - regulator_bulk_free(ARRAY_SIZE(wm8994_main_supplies), wm8994->supplies); + regulator_bulk_free(wm8994->num_supplies, wm8994->supplies); kfree(wm8994->supplies); kfree(wm8994); } @@ -506,8 +559,9 @@ static int wm8994_i2c_probe(struct i2c_client *i2c, wm8994->read_dev = wm8994_i2c_read_device; wm8994->write_dev = wm8994_i2c_write_device; wm8994->irq = i2c->irq; + wm8994->type = id->driver_data; - return wm8994_device_init(wm8994, id->driver_data, i2c->irq); + return wm8994_device_init(wm8994, i2c->irq); } static int wm8994_i2c_remove(struct i2c_client *i2c) @@ -535,7 +589,8 @@ static int wm8994_i2c_resume(struct i2c_client *i2c) #endif static const struct i2c_device_id wm8994_i2c_id[] = { - { "wm8994", 0 }, + { "wm8994", WM8994 }, + { "wm8958", WM8958 }, { } }; MODULE_DEVICE_TABLE(i2c, wm8994_i2c_id); -- cgit v1.2.3-70-g09d2