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-rw-r--r--drivers/input/rmi4/rmi_bus.c35
-rw-r--r--drivers/input/rmi4/rmi_bus.h4
-rw-r--r--drivers/input/rmi4/rmi_driver.c28
-rw-r--r--drivers/input/rmi4/rmi_f01.c50
-rw-r--r--drivers/input/rmi4/rmi_i2c.c12
5 files changed, 124 insertions, 5 deletions
diff --git a/drivers/input/rmi4/rmi_bus.c b/drivers/input/rmi4/rmi_bus.c
index 0a2bd5a0f2b7..434477ea0c4e 100644
--- a/drivers/input/rmi4/rmi_bus.c
+++ b/drivers/input/rmi4/rmi_bus.c
@@ -153,6 +153,21 @@ static int rmi_function_match(struct device *dev, struct device_driver *drv)
return fn->fd.function_number == handler->func;
}
+#ifdef CONFIG_OF
+static void rmi_function_of_probe(struct rmi_function *fn)
+{
+ char of_name[9];
+
+ snprintf(of_name, sizeof(of_name), "rmi4-f%02x",
+ fn->fd.function_number);
+ fn->dev.of_node = of_find_node_by_name(
+ fn->rmi_dev->xport->dev->of_node, of_name);
+}
+#else
+static inline void rmi_function_of_probe(struct rmi_function *fn)
+{}
+#endif
+
static int rmi_function_probe(struct device *dev)
{
struct rmi_function *fn = to_rmi_function(dev);
@@ -160,6 +175,8 @@ static int rmi_function_probe(struct device *dev)
to_rmi_function_handler(dev->driver);
int error;
+ rmi_function_of_probe(fn);
+
if (handler->probe) {
error = handler->probe(fn);
return error;
@@ -325,6 +342,24 @@ err_unregister_function_handlers:
return ret;
}
+int rmi_of_property_read_u32(struct device *dev, u32 *result,
+ const char *prop, bool optional)
+{
+ int retval;
+ u32 val = 0;
+
+ retval = of_property_read_u32(dev->of_node, prop, &val);
+ if (retval && (!optional && retval == -EINVAL)) {
+ dev_err(dev, "Failed to get %s value: %d\n",
+ prop, retval);
+ return retval;
+ }
+ *result = val;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rmi_of_property_read_u32);
+
static int __init rmi_bus_init(void)
{
int error;
diff --git a/drivers/input/rmi4/rmi_bus.h b/drivers/input/rmi4/rmi_bus.h
index 13b148d44b37..899579830536 100644
--- a/drivers/input/rmi4/rmi_bus.h
+++ b/drivers/input/rmi4/rmi_bus.h
@@ -172,10 +172,6 @@ extern struct bus_type rmi_bus_type;
int rmi_of_property_read_u32(struct device *dev, u32 *result,
const char *prop, bool optional);
-int rmi_of_property_read_u16(struct device *dev, u16 *result,
- const char *prop, bool optional);
-int rmi_of_property_read_u8(struct device *dev, u8 *result,
- const char *prop, bool optional);
#define RMI_DEBUG_CORE BIT(0)
#define RMI_DEBUG_XPORT BIT(1)
diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c
index b0f34b57a126..da38f0ad80ed 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;
diff --git a/drivers/input/rmi4/rmi_f01.c b/drivers/input/rmi4/rmi_f01.c
index e50ecc6699e7..eb362bc71a4c 100644
--- a/drivers/input/rmi4/rmi_f01.c
+++ b/drivers/input/rmi4/rmi_f01.c
@@ -247,6 +247,50 @@ char *rmi_f01_get_product_ID(struct rmi_function *fn)
return f01->properties.product_id;
}
+#ifdef CONFIG_OF
+static int rmi_f01_of_probe(struct device *dev,
+ struct rmi_device_platform_data *pdata)
+{
+ int retval;
+ u32 val;
+
+ retval = rmi_of_property_read_u32(dev,
+ (u32 *)&pdata->power_management.nosleep,
+ "syna,nosleep-mode", 1);
+ if (retval)
+ return retval;
+
+ retval = rmi_of_property_read_u32(dev, &val,
+ "syna,wakeup-threshold", 1);
+ if (retval)
+ return retval;
+
+ pdata->power_management.wakeup_threshold = val;
+
+ retval = rmi_of_property_read_u32(dev, &val,
+ "syna,doze-holdoff-ms", 1);
+ if (retval)
+ return retval;
+
+ pdata->power_management.doze_holdoff = val * 100;
+
+ retval = rmi_of_property_read_u32(dev, &val,
+ "syna,doze-interval-ms", 1);
+ if (retval)
+ return retval;
+
+ pdata->power_management.doze_interval = val / 10;
+
+ return 0;
+}
+#else
+static inline int rmi_f01_of_probe(struct device *dev,
+ struct rmi_device_platform_data *pdata)
+{
+ return -ENODEV;
+}
+#endif
+
static int rmi_f01_probe(struct rmi_function *fn)
{
struct rmi_device *rmi_dev = fn->rmi_dev;
@@ -258,6 +302,12 @@ static int rmi_f01_probe(struct rmi_function *fn)
u8 device_status;
u8 temp;
+ if (fn->dev.of_node) {
+ error = rmi_f01_of_probe(&fn->dev, pdata);
+ if (error)
+ return error;
+ }
+
f01 = devm_kzalloc(&fn->dev, sizeof(struct f01_data), GFP_KERNEL);
if (!f01)
return -ENOMEM;
diff --git a/drivers/input/rmi4/rmi_i2c.c b/drivers/input/rmi4/rmi_i2c.c
index f93742b6537e..a96a326b53bd 100644
--- a/drivers/input/rmi4/rmi_i2c.c
+++ b/drivers/input/rmi4/rmi_i2c.c
@@ -10,6 +10,7 @@
#include <linux/i2c.h>
#include <linux/rmi.h>
#include <linux/irq.h>
+#include <linux/of.h>
#include "rmi_driver.h"
#define BUFFER_SIZE_INCREMENT 32
@@ -207,6 +208,14 @@ static int rmi_i2c_init_irq(struct i2c_client *client)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id rmi_i2c_of_match[] = {
+ { .compatible = "syna,rmi4-i2c" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, rmi_i2c_of_match);
+#endif
+
static int rmi_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -223,7 +232,7 @@ static int rmi_i2c_probe(struct i2c_client *client,
pdata = &rmi_i2c->xport.pdata;
- if (client_pdata)
+ if (!client->dev.of_node && client_pdata)
*pdata = *client_pdata;
if (client->irq > 0)
@@ -372,6 +381,7 @@ static struct i2c_driver rmi_i2c_driver = {
.driver = {
.name = "rmi4_i2c",
.pm = &rmi_i2c_pm,
+ .of_match_table = of_match_ptr(rmi_i2c_of_match),
},
.id_table = rmi_id,
.probe = rmi_i2c_probe,
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