power: supply: sbs-battery: Cleanup removal of chip->pdata

There where still a few lingering references to pdata after commit
power: supply: sbs-battery: simplify DT parsing.

Remove pdata from struct·sbs_info and conditional checks to ser if this
was set from the i2c read / write functions.
Instead of call max in each function for incrementing poll_retry_count
do it once in the probe function.
Fixup null pointer dereference in to pdata in sbs_external_power_changed.
Change retry counts to u32 to avoid need for max.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Sebastian Reichel <sre@kernel.org>

diff --git a/drivers/power/supply/sbs-battery.c b/drivers/power/supply/sbs-battery.c
index bc7acdf..8bb2eb3 100644 (file)
--- a/drivers/power/supply/sbs-battery.c
+++ b/drivers/power/supply/sbs-battery.c
@@ -163,14 +163,13 @@ static enum power_supply_property sbs_properties[] = {
 struct sbs_info {
        struct i2c_client               *client;
        struct power_supply             *power_supply;
-       struct sbs_platform_data        *pdata;
        bool                            is_present;
        struct gpio_desc                *gpio_detect;
        bool                            enable_detection;
        int                             last_state;
        int                             poll_time;
-       int                             i2c_retry_count;
-       int                             poll_retry_count;
+       u32                             i2c_retry_count;
+       u32                             poll_retry_count;
        struct delayed_work             work;
        int                             ignore_changes;
 };
@@ -185,8 +184,7 @@ static int sbs_read_word_data(struct i2c_client *client, u8 address)
        s32 ret = 0;
        int retries = 1;
 
-       if (chip->pdata)
-               retries = max(chip->i2c_retry_count + 1, 1);
+       retries = chip->i2c_retry_count;
 
        while (retries > 0) {
                ret = i2c_smbus_read_word_data(client, address);
@@ -213,10 +211,8 @@ static int sbs_read_string_data(struct i2c_client *client, u8 address,
        int retries_length = 1, retries_block = 1;
        u8 block_buffer[I2C_SMBUS_BLOCK_MAX + 1];
 
-       if (chip->pdata) {
-               retries_length = max(chip->i2c_retry_count + 1, 1);
-               retries_block = max(chip->i2c_retry_count + 1, 1);
-       }
+       retries_length = chip->i2c_retry_count;
+       retries_block = chip->i2c_retry_count;
 
        /* Adapter needs to support these two functions */
        if (!i2c_check_functionality(client->adapter,
@@ -280,8 +276,7 @@ static int sbs_write_word_data(struct i2c_client *client, u8 address,
        s32 ret = 0;
        int retries = 1;
 
-       if (chip->pdata)
-               retries = max(chip->i2c_retry_count + 1, 1);
+       retries = chip->i2c_retry_count;
 
        while (retries > 0) {
                ret = i2c_smbus_write_word_data(client, address,
@@ -708,7 +703,7 @@ static void sbs_external_power_changed(struct power_supply *psy)
        cancel_delayed_work_sync(&chip->work);
 
        schedule_delayed_work(&chip->work, HZ);
-       chip->poll_time = chip->pdata->poll_retry_count;
+       chip->poll_time = chip->poll_retry_count;
 }
 
 static void sbs_delayed_work(struct work_struct *work)
@@ -792,7 +787,7 @@ static int sbs_probe(struct i2c_client *client,
        rc = of_property_read_u32(client->dev.of_node, "sbs,i2c-retry-count",
                                  &chip->i2c_retry_count);
        if (rc)
-               chip->i2c_retry_count = 1;
+               chip->i2c_retry_count = 0;
 
        rc = of_property_read_u32(client->dev.of_node, "sbs,poll-retry-count",
                                  &chip->poll_retry_count);
@@ -803,6 +798,7 @@ static int sbs_probe(struct i2c_client *client,
                chip->poll_retry_count = pdata->poll_retry_count;
                chip->i2c_retry_count  = pdata->i2c_retry_count;
        }
+       chip->i2c_retry_count = chip->i2c_retry_count + 1;
 
        chip->gpio_detect = devm_gpiod_get_optional(&client->dev,
                        "sbs,battery-detect", GPIOD_IN);

diff --git a/include/linux/power/sbs-battery.h b/include/linux/power/sbs-battery.h
index 811f1a0..519b8b4 100644 (file)
--- a/include/linux/power/sbs-battery.h
+++ b/include/linux/power/sbs-battery.h
@@ -31,8 +31,8 @@
  *                             external change notification
  */
 struct sbs_platform_data {
-       int i2c_retry_count;
-       int poll_retry_count;
+       u32 i2c_retry_count;
+       u32 poll_retry_count;
 };
 
 #endif