diff options
| author | Sean Paul <seanpaul@chromium.org> | 2019-04-10 22:50:49 +0300 |
|---|---|---|
| committer | Sean Paul <seanpaul@chromium.org> | 2019-04-10 22:50:49 +0300 |
| commit | 3bfaf1f7044c6a3b1e00fcad2d0529f0da449d67 (patch) | |
| tree | 490bc7e8aa29c2ee41eb4813683f1aa23971abd3 /drivers/rtc/rtc-pcf8523.c | |
| parent | 669105a74a287b14cdec04c64eb51db1bb890f64 (diff) | |
| parent | 14d2bd53a47a7e1cb3e03d00a6b952734cf90f3f (diff) | |
| download | linux-3bfaf1f7044c6a3b1e00fcad2d0529f0da449d67.tar.xz | |
Merge drm/drm-next into drm-misc-next
Finally have a reason for a backmerge other than "it's been a while"!
Backmerging drm-next to -misc-next to facilitate Rob Herring's work on
Panfrost.
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Diffstat (limited to 'drivers/rtc/rtc-pcf8523.c')
| -rw-r--r-- | drivers/rtc/rtc-pcf8523.c | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/drivers/rtc/rtc-pcf8523.c b/drivers/rtc/rtc-pcf8523.c index 3fcd2cbafc84..b5c61a70b5df 100644 --- a/drivers/rtc/rtc-pcf8523.c +++ b/drivers/rtc/rtc-pcf8523.c @@ -97,8 +97,9 @@ static int pcf8523_voltage_low(struct i2c_client *client) return !!(value & REG_CONTROL3_BLF); } -static int pcf8523_select_capacitance(struct i2c_client *client, bool high) +static int pcf8523_load_capacitance(struct i2c_client *client) { + u32 load; u8 value; int err; @@ -106,14 +107,24 @@ static int pcf8523_select_capacitance(struct i2c_client *client, bool high) if (err < 0) return err; - if (!high) - value &= ~REG_CONTROL1_CAP_SEL; - else + load = 12500; + of_property_read_u32(client->dev.of_node, "quartz-load-femtofarads", + &load); + + switch (load) { + default: + dev_warn(&client->dev, "Unknown quartz-load-femtofarads value: %d. Assuming 12500", + load); + /* fall through */ + case 12500: value |= REG_CONTROL1_CAP_SEL; + break; + case 7000: + value &= ~REG_CONTROL1_CAP_SEL; + break; + } err = pcf8523_write(client, REG_CONTROL1, value); - if (err < 0) - return err; return err; } @@ -347,9 +358,10 @@ static int pcf8523_probe(struct i2c_client *client, if (!pcf) return -ENOMEM; - err = pcf8523_select_capacitance(client, true); + err = pcf8523_load_capacitance(client); if (err < 0) - return err; + dev_warn(&client->dev, "failed to set xtal load capacitance: %d", + err); err = pcf8523_set_pm(client, 0); if (err < 0) @@ -374,6 +386,7 @@ MODULE_DEVICE_TABLE(i2c, pcf8523_id); #ifdef CONFIG_OF static const struct of_device_id pcf8523_of_match[] = { { .compatible = "nxp,pcf8523" }, + { .compatible = "microcrystal,rv8523" }, { } }; MODULE_DEVICE_TABLE(of, pcf8523_of_match); |