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| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2012-05-07 17:45:50 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-05-11 05:37:46 +0200 |
| commit | 9ac7b1a36c729ce88eee7370da3c9992d7b40590 (patch) | |
| tree | cbdfe7dcb397991e5befb8434a597597ca94626b /drivers/input/misc/twl6040-vibra.c | |
| parent | Input: evdev - properly handle read/write with count 0 (diff) | |
| download | linux-9ac7b1a36c729ce88eee7370da3c9992d7b40590.tar.xz linux-9ac7b1a36c729ce88eee7370da3c9992d7b40590.zip | |
Input: tl6040-vibra - Device Tree support
Enable DT based probing of the vibra driver.
Example of dts section to load the twl6040-vibra driver:
twl6040: twl6040@4b {
...
twl6040_vibra: twl6040@1 {
compatible = "ti,twl6040-vibra";
interrupts = <4>;
vddvibl-supply = <&vbat>;
vddvibr-supply = <&vbat>;
vibldrv_res = <8>;
vibrdrv_res = <3>;
viblmotor_res = <10>;
vibrmotor_res = <10>;
};
};
[Sasha Levin <levinsasha928@gmail.com>: fixed build error]
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/misc/twl6040-vibra.c')
| -rw-r--r-- | drivers/input/misc/twl6040-vibra.c | 46 |
1 files changed, 35 insertions, 11 deletions
diff --git a/drivers/input/misc/twl6040-vibra.c b/drivers/input/misc/twl6040-vibra.c index 14e94f56cb7d..c34f6c0371c4 100644 --- a/drivers/input/misc/twl6040-vibra.c +++ b/drivers/input/misc/twl6040-vibra.c @@ -27,6 +27,7 @@ */ #include <linux/module.h> #include <linux/platform_device.h> +#include <linux/of.h> #include <linux/workqueue.h> #include <linux/input.h> #include <linux/mfd/twl6040.h> @@ -258,10 +259,13 @@ static SIMPLE_DEV_PM_OPS(twl6040_vibra_pm_ops, twl6040_vibra_suspend, NULL); static int __devinit twl6040_vibra_probe(struct platform_device *pdev) { struct twl6040_vibra_data *pdata = pdev->dev.platform_data; + struct device_node *node = pdev->dev.of_node; struct vibra_info *info; + int vddvibl_uV = 0; + int vddvibr_uV = 0; int ret; - if (!pdata) { + if (!pdata && !node) { dev_err(&pdev->dev, "platform_data not available\n"); return -EINVAL; } @@ -273,11 +277,26 @@ static int __devinit twl6040_vibra_probe(struct platform_device *pdev) } info->dev = &pdev->dev; + info->twl6040 = dev_get_drvdata(pdev->dev.parent); - info->vibldrv_res = pdata->vibldrv_res; - info->vibrdrv_res = pdata->vibrdrv_res; - info->viblmotor_res = pdata->viblmotor_res; - info->vibrmotor_res = pdata->vibrmotor_res; + if (pdata) { + info->vibldrv_res = pdata->vibldrv_res; + info->vibrdrv_res = pdata->vibrdrv_res; + info->viblmotor_res = pdata->viblmotor_res; + info->vibrmotor_res = pdata->vibrmotor_res; + vddvibl_uV = pdata->vddvibl_uV; + vddvibr_uV = pdata->vddvibr_uV; + } else { + of_property_read_u32(node, "vibldrv_res", &info->vibldrv_res); + of_property_read_u32(node, "vibrdrv_res", &info->vibrdrv_res); + of_property_read_u32(node, "viblmotor_res", + &info->viblmotor_res); + of_property_read_u32(node, "vibrmotor_res", + &info->vibrmotor_res); + of_property_read_u32(node, "vddvibl_uV", &vddvibl_uV); + of_property_read_u32(node, "vddvibr_uV", &vddvibr_uV); + } + if ((!info->vibldrv_res && !info->viblmotor_res) || (!info->vibrdrv_res && !info->vibrmotor_res)) { dev_err(info->dev, "invalid vibra driver/motor resistance\n"); @@ -339,10 +358,9 @@ static int __devinit twl6040_vibra_probe(struct platform_device *pdev) goto err_regulator; } - if (pdata->vddvibl_uV) { + if (vddvibl_uV) { ret = regulator_set_voltage(info->supplies[0].consumer, - pdata->vddvibl_uV, - pdata->vddvibl_uV); + vddvibl_uV, vddvibl_uV); if (ret) { dev_err(info->dev, "failed to set VDDVIBL volt %d\n", ret); @@ -350,10 +368,9 @@ static int __devinit twl6040_vibra_probe(struct platform_device *pdev) } } - if (pdata->vddvibr_uV) { + if (vddvibr_uV) { ret = regulator_set_voltage(info->supplies[1].consumer, - pdata->vddvibr_uV, - pdata->vddvibr_uV); + vddvibr_uV, vddvibr_uV); if (ret) { dev_err(info->dev, "failed to set VDDVIBR volt %d\n", ret); @@ -401,6 +418,12 @@ static int __devexit twl6040_vibra_remove(struct platform_device *pdev) return 0; } +static const struct of_device_id twl6040_vibra_of_match[] = { + {.compatible = "ti,twl6040-vibra", }, + { }, +}; +MODULE_DEVICE_TABLE(of, twl6040_vibra_of_match); + static struct platform_driver twl6040_vibra_driver = { .probe = twl6040_vibra_probe, .remove = __devexit_p(twl6040_vibra_remove), @@ -408,6 +431,7 @@ static struct platform_driver twl6040_vibra_driver = { .name = "twl6040-vibra", .owner = THIS_MODULE, .pm = &twl6040_vibra_pm_ops, + .of_match_table = twl6040_vibra_of_match, }, }; module_platform_driver(twl6040_vibra_driver); |