diff options
Diffstat (limited to 'drivers/input/rmi4/rmi_driver.c')
| -rw-r--r-- | drivers/input/rmi4/rmi_driver.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c index b0f34b5..da38f0a 100644 --- a/drivers/input/rmi4/rmi_driver.c +++ b/drivers/input/rmi4/rmi_driver.c @@ -20,6 +20,7 @@ #include <linux/kconfig.h> #include <linux/pm.h> #include <linux/slab.h> +#include <linux/of.h> #include <uapi/linux/input.h> #include <linux/rmi.h> #include "rmi_bus.h" @@ -821,6 +822,27 @@ static int rmi_driver_remove(struct device *dev) return 0; } +#ifdef CONFIG_OF +static int rmi_driver_of_probe(struct device *dev, + struct rmi_device_platform_data *pdata) +{ + int retval; + + retval = rmi_of_property_read_u32(dev, &pdata->reset_delay_ms, + "syna,reset-delay-ms", 1); + if (retval) + return retval; + + return 0; +} +#else +static inline int rmi_driver_of_probe(struct device *dev, + struct rmi_device_platform_data *pdata) +{ + return -ENODEV; +} +#endif + static int rmi_driver_probe(struct device *dev) { struct rmi_driver *rmi_driver; @@ -846,6 +868,12 @@ static int rmi_driver_probe(struct device *dev) pdata = rmi_get_platform_data(rmi_dev); + if (rmi_dev->xport->dev->of_node) { + retval = rmi_driver_of_probe(rmi_dev->xport->dev, pdata); + if (retval) + return retval; + } + data = devm_kzalloc(dev, sizeof(struct rmi_driver_data), GFP_KERNEL); if (!data) return -ENOMEM; |