summaryrefslogtreecommitdiff
path: root/drivers/w1/slaves/w1_bq27000.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/w1/slaves/w1_bq27000.c')
-rw-r--r--drivers/w1/slaves/w1_bq27000.c36
1 files changed, 14 insertions, 22 deletions
diff --git a/drivers/w1/slaves/w1_bq27000.c b/drivers/w1/slaves/w1_bq27000.c
index 8f4c91f6c680..52ad812fa1e7 100644
--- a/drivers/w1/slaves/w1_bq27000.c
+++ b/drivers/w1/slaves/w1_bq27000.c
@@ -15,6 +15,7 @@
#include <linux/types.h>
#include <linux/platform_device.h>
#include <linux/mutex.h>
+#include <linux/power/bq27x00_battery.h>
#include "../w1.h"
#include "../w1_int.h"
@@ -25,46 +26,37 @@
static int F_ID;
-void w1_bq27000_write(struct device *dev, u8 buf, u8 reg)
-{
- struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
-
- if (!dev) {
- pr_info("Could not obtain slave dev ptr\n");
- return;
- }
-
- w1_write_8(sl->master, HDQ_CMD_WRITE | reg);
- w1_write_8(sl->master, buf);
-}
-EXPORT_SYMBOL(w1_bq27000_write);
-
-int w1_bq27000_read(struct device *dev, u8 reg)
+static int w1_bq27000_read(struct device *dev, unsigned int reg)
{
u8 val;
- struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
-
- if (!dev)
- return 0;
+ struct w1_slave *sl = container_of(dev->parent, struct w1_slave, dev);
+ mutex_lock(&sl->master->mutex);
w1_write_8(sl->master, HDQ_CMD_READ | reg);
val = w1_read_8(sl->master);
+ mutex_unlock(&sl->master->mutex);
return val;
}
-EXPORT_SYMBOL(w1_bq27000_read);
+
+static struct bq27000_platform_data bq27000_battery_info = {
+ .read = w1_bq27000_read,
+ .name = "bq27000-battery",
+};
static int w1_bq27000_add_slave(struct w1_slave *sl)
{
int ret;
- int id = 1;
struct platform_device *pdev;
- pdev = platform_device_alloc("bq27000-battery", id);
+ pdev = platform_device_alloc("bq27000-battery", -1);
if (!pdev) {
ret = -ENOMEM;
return ret;
}
+ ret = platform_device_add_data(pdev,
+ &bq27000_battery_info,
+ sizeof(bq27000_battery_info));
pdev->dev.parent = &sl->dev;
ret = platform_device_add(pdev);