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authorKrzysztof Kozlowski <k.kozlowski@samsung.com>2015-12-30 05:47:26 +0100
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>2016-01-11 20:21:45 +0100
commit67a6025a77be7c6bcb4baeb9424509fcb4ca1e32 (patch)
treee3071dfc204f422ddecdda083c3aaeb097566fc2
parentrtc: s5m: Cleanup by removing useless 'rtc' prefix from fields (diff)
downloadlinux-67a6025a77be7c6bcb4baeb9424509fcb4ca1e32.tar.xz
linux-67a6025a77be7c6bcb4baeb9424509fcb4ca1e32.zip
rtc: s5m: Add separate field for storing auto-cleared mask in register config
Some devices from S2M/S5M family use different register update masks for different operations (alarm and register update). Now the driver uses common register configuration and a lot of exceptions per device in code. Before eliminating the exceptions and using specific register configuration for given device, make the auto-cleared mask a separate field. This is merely a refactoring. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Tested-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
-rw-r--r--drivers/rtc/rtc-s5m.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index 85649861a6b0..559db8f72117 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -56,6 +56,8 @@ struct s5m_rtc_reg_config {
* auto-cleared after successful update.
*/
unsigned int udr_update;
+ /* Auto-cleared mask in UDR field for writing time and alarm */
+ unsigned int autoclear_udr_mask;
/* Mask for UDR field in 'udr_update' register */
unsigned int udr_mask;
};
@@ -68,6 +70,7 @@ static const struct s5m_rtc_reg_config s5m_rtc_regs = {
.alarm0 = S5M_ALARM0_SEC,
.alarm1 = S5M_ALARM1_SEC,
.udr_update = S5M_RTC_UDR_CON,
+ .autoclear_udr_mask = S5M_RTC_UDR_MASK,
.udr_mask = S5M_RTC_UDR_MASK,
};
@@ -82,6 +85,7 @@ static const struct s5m_rtc_reg_config s2mps_rtc_regs = {
.alarm0 = S2MPS_ALARM0_SEC,
.alarm1 = S2MPS_ALARM1_SEC,
.udr_update = S2MPS_RTC_UDR_CON,
+ .autoclear_udr_mask = S2MPS_RTC_WUDR_MASK,
.udr_mask = S2MPS_RTC_WUDR_MASK,
};
@@ -167,7 +171,7 @@ static inline int s5m8767_wait_for_udr_update(struct s5m_rtc_info *info)
do {
ret = regmap_read(info->regmap, info->regs->udr_update, &data);
- } while (--retry && (data & info->regs->udr_mask) && !ret);
+ } while (--retry && (data & info->regs->autoclear_udr_mask) && !ret);
if (!retry)
dev_err(info->dev, "waiting for UDR update, reached max number of retries\n");