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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2012-05-07 17:45:50 +0200
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-05-11 05:37:46 +0200
commit9ac7b1a36c729ce88eee7370da3c9992d7b40590 (patch)
treecbdfe7dcb397991e5befb8434a597597ca94626b /drivers/input
parentInput: evdev - properly handle read/write with count 0 (diff)
downloadlinux-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')
-rw-r--r--drivers/input/misc/twl6040-vibra.c46
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);