wm97xx_battery: Use platform_data

This patch converts the wm97xx-battery driver to use platform_data
supplied by ac97 bus.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>

diff --git a/drivers/power/wm97xx_battery.c b/drivers/power/wm97xx_battery.c
index 8bde921..14ebd96 100644 (file)
--- a/drivers/power/wm97xx_battery.c
+++ b/drivers/power/wm97xx_battery.c
@@ -22,17 +22,19 @@
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
 #include <linux/gpio.h>
-#include <linux/wm97xx_batt.h>
 
 static DEFINE_MUTEX(bat_lock);
 static struct work_struct bat_work;
 struct mutex work_lock;
 static int bat_status = POWER_SUPPLY_STATUS_UNKNOWN;
-static struct wm97xx_batt_info *pdata;
+static struct wm97xx_batt_info *gpdata;
 static enum power_supply_property *prop;
 
 static unsigned long wm97xx_read_bat(struct power_supply *bat_ps)
 {
+       struct wm97xx_pdata *wmdata = bat_ps->dev->parent->platform_data;
+       struct wm97xx_batt_pdata *pdata = wmdata->batt_pdata;
+
        return wm97xx_read_aux_adc(bat_ps->dev->parent->driver_data,
                                        pdata->batt_aux) * pdata->batt_mult /
                                        pdata->batt_div;
@@ -40,6 +42,9 @@ static unsigned long wm97xx_read_bat(struct power_supply *bat_ps)
 
 static unsigned long wm97xx_read_temp(struct power_supply *bat_ps)
 {
+       struct wm97xx_pdata *wmdata = bat_ps->dev->parent->platform_data;
+       struct wm97xx_batt_pdata *pdata = wmdata->batt_pdata;
+
        return wm97xx_read_aux_adc(bat_ps->dev->parent->driver_data,
                                        pdata->temp_aux) * pdata->temp_mult /
                                        pdata->temp_div;
@@ -49,6 +54,9 @@ static int wm97xx_bat_get_property(struct power_supply *bat_ps,
                            enum power_supply_property psp,
                            union power_supply_propval *val)
 {
+       struct wm97xx_pdata *wmdata = bat_ps->dev->parent->platform_data;
+       struct wm97xx_batt_pdata *pdata = wmdata->batt_pdata;
+
        switch (psp) {
        case POWER_SUPPLY_PROP_STATUS:
                val->intval = bat_status;
@@ -97,6 +105,8 @@ static void wm97xx_bat_external_power_changed(struct power_supply *bat_ps)
 static void wm97xx_bat_update(struct power_supply *bat_ps)
 {
        int old_status = bat_status;
+       struct wm97xx_pdata *wmdata = bat_ps->dev->parent->platform_data;
+       struct wm97xx_batt_pdata *pdata = wmdata->batt_pdata;
 
        mutex_lock(&work_lock);
 
@@ -149,6 +159,15 @@ static int __devinit wm97xx_bat_probe(struct platform_device *dev)
        int ret = 0;
        int props = 1;  /* POWER_SUPPLY_PROP_PRESENT */
        int i = 0;
+       struct wm97xx_pdata *wmdata = dev->dev.platform_data;
+       struct wm97xx_batt_pdata *pdata;
+
+       if (gpdata) {
+               dev_err(&dev->dev, "Do not pass platform_data through "
+                       "wm97xx_bat_set_pdata!\n");
+               return -EINVAL;
+       } else
+               pdata = wmdata->batt_pdata;
 
        if (dev->id != -1)
                return -EINVAL;
@@ -156,7 +175,7 @@ static int __devinit wm97xx_bat_probe(struct platform_device *dev)
        mutex_init(&work_lock);
 
        if (!pdata) {
-               dev_err(&dev->dev, "Please use wm97xx_bat_set_pdata\n");
+               dev_err(&dev->dev, "No platform_data supplied\n");
                return -EINVAL;
        }
 
@@ -229,6 +248,9 @@ err:
 
 static int __devexit wm97xx_bat_remove(struct platform_device *dev)
 {
+       struct wm97xx_pdata *wmdata = dev->dev.platform_data;
+       struct wm97xx_batt_pdata *pdata = wmdata->batt_pdata;
+
        if (pdata && pdata->charge_gpio && pdata->charge_gpio >= 0)
                gpio_free(pdata->charge_gpio);
        flush_scheduled_work();
@@ -258,9 +280,9 @@ static void __exit wm97xx_bat_exit(void)
        platform_driver_unregister(&wm97xx_bat_driver);
 }
 
-void __init wm97xx_bat_set_pdata(struct wm97xx_batt_info *data)
+void wm97xx_bat_set_pdata(struct wm97xx_batt_info *data)
 {
-       pdata = data;
+       gpdata = data;
 }
 EXPORT_SYMBOL_GPL(wm97xx_bat_set_pdata);
 

diff --git a/include/linux/wm97xx.h b/include/linux/wm97xx.h
index 6f69968..b2c2297 100644 (file)
--- a/include/linux/wm97xx.h
+++ b/include/linux/wm97xx.h
@@ -286,6 +286,24 @@ struct wm97xx {
        u16 suspend_mode;               /* PRP in suspend mode */
 };
 
+struct wm97xx_batt_pdata {
+       int     batt_aux;
+       int     temp_aux;
+       int     charge_gpio;
+       int     min_voltage;
+       int     max_voltage;
+       int     batt_div;
+       int     batt_mult;
+       int     temp_div;
+       int     temp_mult;
+       int     batt_tech;
+       char    *batt_name;
+};
+
+struct wm97xx_pdata {
+       struct wm97xx_batt_pdata        *batt_pdata;    /* battery data */
+};
+
 /*
  * Codec GPIO access (not supported on WM9705)
  * This can be used to set/get codec GPIO and Virtual GPIO status.

diff --git a/include/linux/wm97xx_batt.h b/include/linux/wm97xx_batt.h
index 9681d1a..a1d6419 100644 (file)
--- a/include/linux/wm97xx_batt.h
+++ b/include/linux/wm97xx_batt.h
@@ -3,22 +3,12 @@
 
 #include <linux/wm97xx.h>
 
-struct wm97xx_batt_info {
-       int     batt_aux;
-       int     temp_aux;
-       int     charge_gpio;
-       int     min_voltage;
-       int     max_voltage;
-       int     batt_div;
-       int     batt_mult;
-       int     temp_div;
-       int     temp_mult;
-       int     batt_tech;
-       char    *batt_name;
-};
+#warning This file will be removed soon, use wm97xx.h instead!
+
+#define wm97xx_batt_info wm97xx_batt_pdata
 
 #ifdef CONFIG_BATTERY_WM97XX
-void __init wm97xx_bat_set_pdata(struct wm97xx_batt_info *data);
+void wm97xx_bat_set_pdata(struct wm97xx_batt_info *data);
 #else
 static inline void wm97xx_bat_set_pdata(struct wm97xx_batt_info *data) {}
 #endif