diff options
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-rv3028.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/rtc/rtc-rv3028.c b/drivers/rtc/rtc-rv3028.c index ec84db0b3d7a..fcc21b1b07b4 100644 --- a/drivers/rtc/rtc-rv3028.c +++ b/drivers/rtc/rtc-rv3028.c @@ -619,24 +619,23 @@ static int rv3028_clkout_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long parent_rate) { int i, ret; + u32 enabled; struct rv3028_data *rv3028 = clkout_hw_to_rv3028(hw); + ret = regmap_read(rv3028->regmap, RV3028_CLKOUT, &enabled); + if (ret < 0) + return ret; + ret = regmap_write(rv3028->regmap, RV3028_CLKOUT, 0x0); if (ret < 0) return ret; - for (i = 0; i < ARRAY_SIZE(clkout_rates); i++) { - if (clkout_rates[i] == rate) { - ret = regmap_update_bits(rv3028->regmap, - RV3028_CLKOUT, - RV3028_CLKOUT_FD_MASK, i); - if (ret < 0) - return ret; + enabled &= RV3028_CLKOUT_CLKOE; + for (i = 0; i < ARRAY_SIZE(clkout_rates); i++) + if (clkout_rates[i] == rate) return regmap_write(rv3028->regmap, RV3028_CLKOUT, - RV3028_CLKOUT_CLKSY | RV3028_CLKOUT_CLKOE); - } - } + RV3028_CLKOUT_CLKSY | enabled | i); return -EINVAL; } |