rtc: ds1340: Add support for trickle charger.

Add support Dallas DS1340 trickle charger function.

Signed-off-by: Andrea Greco <a.greco@4sigma.it>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index a13e59e..e9ec416 100644 (file)
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -201,6 +201,7 @@ static const struct chip_desc chips[last_ds_type] = {
                .century_reg    = DS1307_REG_HOUR,
                .century_enable_bit = DS1340_BIT_CENTURY_EN,
                .century_bit    = DS1340_BIT_CENTURY,
+               .do_trickle_setup = &do_trickle_setup_ds1339,
                .trickle_charger_reg = 0x08,
        },
        [ds_1341] = {
@@ -1371,6 +1372,7 @@ static void ds1307_clks_register(struct ds1307 *ds1307)
 static const struct regmap_config regmap_config = {
        .reg_bits = 8,
        .val_bits = 8,
+       .max_register = 0x9,
 };
 
 static int ds1307_probe(struct i2c_client *client,