diff options
Diffstat (limited to 'drivers/mfd/wm8994-core.c')
-rw-r--r-- | drivers/mfd/wm8994-core.c | 106 |
1 files changed, 90 insertions, 16 deletions
diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c index f117e7fb9321..98733d408fee 100644 --- a/drivers/mfd/wm8994-core.c +++ b/drivers/mfd/wm8994-core.c @@ -256,6 +256,20 @@ static int wm8994_suspend(struct device *dev) break; } + switch (wm8994->type) { + case WM1811: + ret = wm8994_reg_read(wm8994, WM8994_ANTIPOP_2); + if (ret < 0) { + dev_err(dev, "Failed to read jackdet: %d\n", ret); + } else if (ret & WM1811_JACKDET_MODE_MASK) { + dev_dbg(dev, "CODEC still active, ignoring suspend\n"); + return 0; + } + break; + default: + break; + } + /* Disable LDO pulldowns while the device is suspended if we * don't know that something will be driving them. */ if (!wm8994->ldo_ena_always_driven) @@ -345,15 +359,38 @@ static int wm8994_ldo_in_use(struct wm8994_pdata *pdata, int ldo) } #endif +static const __devinitdata struct reg_default wm8994_revc_patch[] = { + { 0x102, 0x3 }, + { 0x56, 0x3 }, + { 0x817, 0x0 }, + { 0x102, 0x0 }, +}; + +static const __devinitdata struct reg_default wm8958_reva_patch[] = { + { 0x102, 0x3 }, + { 0xcb, 0x81 }, + { 0x817, 0x0 }, + { 0x102, 0x0 }, +}; + +static const __devinitdata struct reg_default wm1811_reva_patch[] = { + { 0x102, 0x3 }, + { 0x56, 0x7 }, + { 0x5d, 0x7e }, + { 0x5e, 0x0 }, + { 0x102, 0x0 }, +}; + /* * Instantiate the generic non-control parts of the device. */ -static int wm8994_device_init(struct wm8994 *wm8994, int irq) +static __devinit int wm8994_device_init(struct wm8994 *wm8994, int irq) { struct wm8994_pdata *pdata = wm8994->dev->platform_data; struct regmap_config *regmap_config; + const struct reg_default *regmap_patch = NULL; const char *devname; - int ret, i; + int ret, i, patch_regs; int pulls = 0; dev_set_drvdata(wm8994->dev, wm8994); @@ -365,7 +402,7 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq) NULL, 0); if (ret != 0) { dev_err(wm8994->dev, "Failed to add children: %d\n", ret); - goto err_regmap; + goto err; } switch (wm8994->type) { @@ -380,7 +417,7 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq) break; default: BUG(); - goto err_regmap; + goto err; } wm8994->supplies = devm_kzalloc(wm8994->dev, @@ -388,7 +425,7 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq) wm8994->num_supplies, GFP_KERNEL); if (!wm8994->supplies) { ret = -ENOMEM; - goto err_regmap; + goto err; } switch (wm8994->type) { @@ -406,14 +443,14 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq) break; default: BUG(); - goto err_regmap; + goto err; } 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_regmap; + goto err; } ret = regulator_bulk_enable(wm8994->num_supplies, @@ -474,15 +511,44 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq) "revision %c not fully supported\n", 'A' + wm8994->revision); break; + case 2: + case 3: + regmap_patch = wm8994_revc_patch; + patch_regs = ARRAY_SIZE(wm8994_revc_patch); + break; default: break; } break; + + case WM8958: + switch (wm8994->revision) { + case 0: + regmap_patch = wm8958_reva_patch; + patch_regs = ARRAY_SIZE(wm8958_reva_patch); + break; + default: + break; + } + break; + case WM1811: /* Revision C did not change the relevant layer */ if (wm8994->revision > 1) wm8994->revision++; + switch (wm8994->revision) { + case 0: + case 1: + case 2: + case 3: + regmap_patch = wm1811_reva_patch; + patch_regs = ARRAY_SIZE(wm1811_reva_patch); + break; + default: + break; + } break; + default: break; } @@ -512,6 +578,16 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq) return ret; } + if (regmap_patch) { + ret = regmap_register_patch(wm8994->regmap, regmap_patch, + patch_regs); + if (ret != 0) { + dev_err(wm8994->dev, "Failed to register patch: %d\n", + ret); + goto err; + } + } + if (pdata) { wm8994->irq_base = pdata->irq_base; wm8994->gpio_base = pdata->gpio_base; @@ -574,13 +650,12 @@ err_enable: wm8994->supplies); err_get: regulator_bulk_free(wm8994->num_supplies, wm8994->supplies); -err_regmap: - regmap_exit(wm8994->regmap); +err: mfd_remove_devices(wm8994->dev); return ret; } -static void wm8994_device_exit(struct wm8994 *wm8994) +static __devexit void wm8994_device_exit(struct wm8994 *wm8994) { pm_runtime_disable(wm8994->dev); mfd_remove_devices(wm8994->dev); @@ -588,7 +663,6 @@ static void wm8994_device_exit(struct wm8994 *wm8994) regulator_bulk_disable(wm8994->num_supplies, wm8994->supplies); regulator_bulk_free(wm8994->num_supplies, wm8994->supplies); - regmap_exit(wm8994->regmap); } static const struct of_device_id wm8994_of_match[] = { @@ -599,8 +673,8 @@ static const struct of_device_id wm8994_of_match[] = { }; MODULE_DEVICE_TABLE(of, wm8994_of_match); -static int wm8994_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) +static __devinit int wm8994_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) { struct wm8994 *wm8994; int ret; @@ -614,7 +688,7 @@ static int wm8994_i2c_probe(struct i2c_client *i2c, wm8994->irq = i2c->irq; wm8994->type = id->driver_data; - wm8994->regmap = regmap_init_i2c(i2c, &wm8994_base_regmap_config); + wm8994->regmap = devm_regmap_init_i2c(i2c, &wm8994_base_regmap_config); if (IS_ERR(wm8994->regmap)) { ret = PTR_ERR(wm8994->regmap); dev_err(wm8994->dev, "Failed to allocate register map: %d\n", @@ -625,7 +699,7 @@ static int wm8994_i2c_probe(struct i2c_client *i2c, return wm8994_device_init(wm8994, i2c->irq); } -static int wm8994_i2c_remove(struct i2c_client *i2c) +static __devexit int wm8994_i2c_remove(struct i2c_client *i2c) { struct wm8994 *wm8994 = i2c_get_clientdata(i2c); @@ -654,7 +728,7 @@ static struct i2c_driver wm8994_i2c_driver = { .of_match_table = wm8994_of_match, }, .probe = wm8994_i2c_probe, - .remove = wm8994_i2c_remove, + .remove = __devexit_p(wm8994_i2c_remove), .id_table = wm8994_i2c_id, }; |