Re: [PATCH 4/5] rtc: s5m: Add the support for S2MPS13 RTC

Krzysztof Kozłowski
2014-11-17T10:19:35Z

On 17.11.2014 01:42, Chanwoo Choi wrote:
> This patch adds only the compatible string for S2MPS13 clock which is identical
> with S2MPS14 clock driver.
>
> Cc: Alessandro Zummo <a.zummo@towertech.it>
> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
> ---
> drivers/rtc/rtc-s5m.c | 15 ++++++++++++++-
> 1 file changed, 14 insertions(+), 1 deletion(-)

The RTC block looks exactly the same as S2MPS14. I wonder can S2MPS13 be
supported without adding all "+ case S2MPS13X:" here? Maybe pass the
same ID in s5m_rtc_id? This would reduce number of changes to only one line.

Best regards,
Krzysztof

>
> diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
> index 8754c33..e5fdfd3 100644
> --- a/drivers/rtc/rtc-s5m.c
> +++ b/drivers/rtc/rtc-s5m.c
> @@ -191,6 +191,7 @@ static inline int s5m_check_peding_alarm_interrupt(struct s5m_rtc_info *info,
> ret = regmap_read(info->regmap, S5M_RTC_STATUS, &val);
> val &= S5M_ALARM0_STATUS;
> break;
> + case S2MPS13X:
> case S2MPS14X:
> ret = regmap_read(info->s5m87xx->regmap_pmic, S2MPS14_REG_ST2,
> &val);
> @@ -254,6 +255,7 @@ static inline int s5m8767_rtc_set_alarm_reg(struct s5m_rtc_info *info)
> case S5M8767X:
> data &= ~S5M_RTC_TIME_EN_MASK;
> break;
> + case S2MPS13X:
> case S2MPS14X:
> data |= S2MPS_RTC_RUDR_MASK;
> break;
> @@ -311,7 +313,9 @@ static int s5m_rtc_read_time(struct device *dev, struct rtc_time *tm)
> u8 data[info->regs->regs_count];
> int ret;
>
> - if (info->device_type == S2MPS14X) {
> + switch (info->device_type) {
> + case S2MPS13X:
> + case S2MPS14X:
> ret = regmap_update_bits(info->regmap,
> info->regs->rtc_udr_update,
> S2MPS_RTC_RUDR_MASK, S2MPS_RTC_RUDR_MASK);
> @@ -333,6 +337,7 @@ static int s5m_rtc_read_time(struct device *dev, struct rtc_time *tm)
> break;
>
> case S5M8767X:
> + case S2MPS13X:
> case S2MPS14X:
> s5m8767_data_to_tm(data, tm, info->rtc_24hr_mode);
> break;
> @@ -359,6 +364,7 @@ static int s5m_rtc_set_time(struct device *dev, struct rtc_time *tm)
> s5m8763_tm_to_data(tm, data);
> break;
> case S5M8767X:
> + case S2MPS13X:
> case S2MPS14X:
> ret = s5m8767_tm_to_data(tm, data);
> break;
> @@ -406,6 +412,7 @@ static int s5m_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
> break;
>
> case S5M8767X:
> + case S2MPS13X:
> case S2MPS14X:
> s5m8767_data_to_tm(data, &alrm->time, info->rtc_24hr_mode);
> alrm->enabled = 0;
> @@ -454,6 +461,7 @@ static int s5m_rtc_stop_alarm(struct s5m_rtc_info *info)
> break;
>
> case S5M8767X:
> + case S2MPS13X:
> case S2MPS14X:
> for (i = 0; i < info->regs->regs_count; i++)
> data[i] &= ~ALARM_ENABLE_MASK;
> @@ -498,6 +506,7 @@ static int s5m_rtc_start_alarm(struct s5m_rtc_info *info)
> break;
>
> case S5M8767X:
> + case S2MPS13X:
> case S2MPS14X:
> data[RTC_SEC] |= ALARM_ENABLE_MASK;
> data[RTC_MIN] |= ALARM_ENABLE_MASK;
> @@ -537,6 +546,7 @@ static int s5m_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
> break;
>
> case S5M8767X:
> + case S2MPS13X:
> case S2MPS14X:
> s5m8767_tm_to_data(&alrm->time, data);
> break;
> @@ -641,6 +651,7 @@ static int s5m8767_rtc_init_reg(struct s5m_rtc_info *info)
> ret = regmap_raw_write(info->regmap, S5M_ALARM0_CONF, data, 2);
> break;
>
> + case S2MPS13X:
> case S2MPS14X:
> data[0] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
> ret = regmap_write(info->regmap, info->regs->ctrl, data[0]);
> @@ -678,6 +689,7 @@ static int s5m_rtc_probe(struct platform_device *pdev)
> return -ENOMEM;
>
> switch (pdata->device_type) {
> + case S2MPS13X:
> case S2MPS14X:
> regmap_cfg = &s2mps14_rtc_regmap_config;
> info->regs = &s2mps_rtc_regs;
> @@ -831,6 +843,7 @@ static SIMPLE_DEV_PM_OPS(s5m_rtc_pm_ops, s5m_rtc_suspend, s5m_rtc_resume);
>
> static const struct platform_device_id s5m_rtc_id[] = {
> { "s5m-rtc", S5M8767X },
> + { "s2mps13-rtc", S2MPS13X },
> { "s2mps14-rtc", S2MPS14X },
> };
>
>