diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-10 15:34:55 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-10 15:34:55 -0700 |
commit | 9ee4d7a6538308a7681b638d2f35f2a301420355 (patch) | |
tree | c037dee441f92e127f5c88e96e537abd5dd41a63 | |
parent | dbd1abb209715544bf37ffa0a3798108e140e3ec (diff) | |
parent | a0347f20aaacc96a203c9609877ecc77093cbe30 (diff) | |
download | linux-9ee4d7a6538308a7681b638d2f35f2a301420355.tar.bz2 |
Merge branch 'akpm' (patches from Andrew Morton)
Merge leftovers from Andrew Morton:
"A few leftovers: ocfs2, gcov, RTC"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
rtc: s5m: consolidate two device type switch statements
rtc: s5m: add support for S2MPS14 RTC
rtc: s5m: support different register layout
rtc: s5m: use shorter time of register update
rtc: s5m: remove undocumented time init on first boot
mfd/rtc: sec/s5m: rename SEC* symbols to S5M
gcov: add support for GCC 4.9
ocfs2/o2net: incorrect to terminate accepting connections loop upon rejecting an invalid one
-rw-r--r-- | drivers/rtc/Kconfig | 4 | ||||
-rw-r--r-- | drivers/rtc/rtc-s5m.c | 310 | ||||
-rw-r--r-- | fs/ocfs2/cluster/tcp.c | 31 | ||||
-rw-r--r-- | include/linux/mfd/samsung/rtc.h | 86 | ||||
-rw-r--r-- | kernel/gcov/base.c | 6 | ||||
-rw-r--r-- | kernel/gcov/gcc_4_7.c | 5 |
6 files changed, 292 insertions, 150 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 71988b69eca6..0754f5c7cb3b 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -530,11 +530,11 @@ config RTC_DRV_RV3029C2 will be called rtc-rv3029c2. config RTC_DRV_S5M - tristate "Samsung S5M series" + tristate "Samsung S2M/S5M series" depends on MFD_SEC_CORE help If you say yes here you will get support for the - RTC of Samsung S5M PMIC series. + RTC of Samsung S2MPS14 and S5M PMIC series. This driver can also be built as a module. If so, the module will be called rtc-s5m. diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c index 8ec2d6a1dbe1..8f06250a0389 100644 --- a/drivers/rtc/rtc-s5m.c +++ b/drivers/rtc/rtc-s5m.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2013 Samsung Electronics Co., Ltd + * Copyright (c) 2013-2014 Samsung Electronics Co., Ltd * http://www.samsung.com * * Copyright (C) 2013 Google, Inc @@ -17,27 +17,76 @@ #include <linux/module.h> #include <linux/i2c.h> -#include <linux/slab.h> #include <linux/bcd.h> -#include <linux/bitops.h> #include <linux/regmap.h> #include <linux/rtc.h> -#include <linux/delay.h> #include <linux/platform_device.h> #include <linux/mfd/samsung/core.h> #include <linux/mfd/samsung/irq.h> #include <linux/mfd/samsung/rtc.h> +#include <linux/mfd/samsung/s2mps14.h> /* * Maximum number of retries for checking changes in UDR field - * of SEC_RTC_UDR_CON register (to limit possible endless loop). + * of S5M_RTC_UDR_CON register (to limit possible endless loop). * * After writing to RTC registers (setting time or alarm) read the UDR field - * in SEC_RTC_UDR_CON register. UDR is auto-cleared when data have + * in S5M_RTC_UDR_CON register. UDR is auto-cleared when data have * been transferred. */ #define UDR_READ_RETRY_CNT 5 +/* Registers used by the driver which are different between chipsets. */ +struct s5m_rtc_reg_config { + /* Number of registers used for setting time/alarm0/alarm1 */ + unsigned int regs_count; + /* First register for time, seconds */ + unsigned int time; + /* RTC control register */ + unsigned int ctrl; + /* First register for alarm 0, seconds */ + unsigned int alarm0; + /* First register for alarm 1, seconds */ + unsigned int alarm1; + /* SMPL/WTSR register */ + unsigned int smpl_wtsr; + /* + * Register for update flag (UDR). Typically setting UDR field to 1 + * will enable update of time or alarm register. Then it will be + * auto-cleared after successful update. + */ + unsigned int rtc_udr_update; + /* Mask for UDR field in 'rtc_udr_update' register */ + unsigned int rtc_udr_mask; +}; + +/* Register map for S5M8763 and S5M8767 */ +static const struct s5m_rtc_reg_config s5m_rtc_regs = { + .regs_count = 8, + .time = S5M_RTC_SEC, + .ctrl = S5M_ALARM1_CONF, + .alarm0 = S5M_ALARM0_SEC, + .alarm1 = S5M_ALARM1_SEC, + .smpl_wtsr = S5M_WTSR_SMPL_CNTL, + .rtc_udr_update = S5M_RTC_UDR_CON, + .rtc_udr_mask = S5M_RTC_UDR_MASK, +}; + +/* + * Register map for S2MPS14. + * It may be also suitable for S2MPS11 but this was not tested. + */ +static const struct s5m_rtc_reg_config s2mps_rtc_regs = { + .regs_count = 7, + .time = S2MPS_RTC_SEC, + .ctrl = S2MPS_RTC_CTRL, + .alarm0 = S2MPS_ALARM0_SEC, + .alarm1 = S2MPS_ALARM1_SEC, + .smpl_wtsr = S2MPS_WTSR_SMPL_CNTL, + .rtc_udr_update = S2MPS_RTC_UDR_CON, + .rtc_udr_mask = S2MPS_RTC_WUDR_MASK, +}; + struct s5m_rtc_info { struct device *dev; struct i2c_client *i2c; @@ -48,13 +97,14 @@ struct s5m_rtc_info { int device_type; int rtc_24hr_mode; bool wtsr_smpl; + const struct s5m_rtc_reg_config *regs; }; static const struct regmap_config s5m_rtc_regmap_config = { .reg_bits = 8, .val_bits = 8, - .max_register = SEC_RTC_REG_MAX, + .max_register = S5M_RTC_REG_MAX, }; static const struct regmap_config s2mps14_rtc_regmap_config = { @@ -119,8 +169,9 @@ static inline int s5m8767_wait_for_udr_update(struct s5m_rtc_info *info) unsigned int data; do { - ret = regmap_read(info->regmap, SEC_RTC_UDR_CON, &data); - } while (--retry && (data & RTC_UDR_MASK) && !ret); + ret = regmap_read(info->regmap, info->regs->rtc_udr_update, + &data); + } while (--retry && (data & info->regs->rtc_udr_mask) && !ret); if (!retry) dev_err(info->dev, "waiting for UDR update, reached max number of retries\n"); @@ -128,21 +179,53 @@ static inline int s5m8767_wait_for_udr_update(struct s5m_rtc_info *info) return ret; } +static inline int s5m_check_peding_alarm_interrupt(struct s5m_rtc_info *info, + struct rtc_wkalrm *alarm) +{ + int ret; + unsigned int val; + + switch (info->device_type) { + case S5M8767X: + case S5M8763X: + ret = regmap_read(info->regmap, S5M_RTC_STATUS, &val); + val &= S5M_ALARM0_STATUS; + break; + case S2MPS14X: + ret = regmap_read(info->s5m87xx->regmap_pmic, S2MPS14_REG_ST2, + &val); + val &= S2MPS_ALARM0_STATUS; + break; + default: + return -EINVAL; + } + if (ret < 0) + return ret; + + if (val) + alarm->pending = 1; + else + alarm->pending = 0; + + return 0; +} + static inline int s5m8767_rtc_set_time_reg(struct s5m_rtc_info *info) { int ret; unsigned int data; - ret = regmap_read(info->regmap, SEC_RTC_UDR_CON, &data); + ret = regmap_read(info->regmap, info->regs->rtc_udr_update, &data); if (ret < 0) { dev_err(info->dev, "failed to read update reg(%d)\n", ret); return ret; } - data |= RTC_TIME_EN_MASK; - data |= RTC_UDR_MASK; + data |= info->regs->rtc_udr_mask; + if (info->device_type == S5M8763X || info->device_type == S5M8767X) + data |= S5M_RTC_TIME_EN_MASK; - ret = regmap_write(info->regmap, SEC_RTC_UDR_CON, data); + ret = regmap_write(info->regmap, info->regs->rtc_udr_update, data); if (ret < 0) { dev_err(info->dev, "failed to write update reg(%d)\n", ret); return ret; @@ -158,17 +241,27 @@ static inline int s5m8767_rtc_set_alarm_reg(struct s5m_rtc_info *info) int ret; unsigned int data; - ret = regmap_read(info->regmap, SEC_RTC_UDR_CON, &data); + ret = regmap_read(info->regmap, info->regs->rtc_udr_update, &data); if (ret < 0) { dev_err(info->dev, "%s: fail to read update reg(%d)\n", __func__, ret); return ret; } - data &= ~RTC_TIME_EN_MASK; - data |= RTC_UDR_MASK; + data |= info->regs->rtc_udr_mask; + switch (info->device_type) { + case S5M8763X: + case S5M8767X: + data &= ~S5M_RTC_TIME_EN_MASK; + break; + case S2MPS14X: + data |= S2MPS_RTC_RUDR_MASK; + break; + default: + return -EINVAL; + } - ret = regmap_write(info->regmap, SEC_RTC_UDR_CON, data); + ret = regmap_write(info->regmap, info->regs->rtc_udr_update, data); if (ret < 0) { dev_err(info->dev, "%s: fail to write update reg(%d)\n", __func__, ret); @@ -215,10 +308,22 @@ static void s5m8763_tm_to_data(struct rtc_time *tm, u8 *data) static int s5m_rtc_read_time(struct device *dev, struct rtc_time *tm) { struct s5m_rtc_info *info = dev_get_drvdata(dev); - u8 data[8]; + u8 data[info->regs->regs_count]; int ret; - ret = regmap_bulk_read(info->regmap, SEC_RTC_SEC, data, 8); + if (info->device_type == S2MPS14X) { + ret = regmap_update_bits(info->regmap, + info->regs->rtc_udr_update, + S2MPS_RTC_RUDR_MASK, S2MPS_RTC_RUDR_MASK); + if (ret) { + dev_err(dev, + "Failed to prepare registers for time reading: %d\n", + ret); + return ret; + } + } + ret = regmap_bulk_read(info->regmap, info->regs->time, data, + info->regs->regs_count); if (ret < 0) return ret; @@ -228,6 +333,7 @@ static int s5m_rtc_read_time(struct device *dev, struct rtc_time *tm) break; case S5M8767X: + case S2MPS14X: s5m8767_data_to_tm(data, tm, info->rtc_24hr_mode); break; @@ -245,7 +351,7 @@ static int s5m_rtc_read_time(struct device *dev, struct rtc_time *tm) static int s5m_rtc_set_time(struct device *dev, struct rtc_time *tm) { struct s5m_rtc_info *info = dev_get_drvdata(dev); - u8 data[8]; + u8 data[info->regs->regs_count]; int ret = 0; switch (info->device_type) { @@ -253,6 +359,7 @@ static int s5m_rtc_set_time(struct device *dev, struct rtc_time *tm) s5m8763_tm_to_data(tm, data); break; case S5M8767X: + case S2MPS14X: ret = s5m8767_tm_to_data(tm, data); break; default: @@ -266,7 +373,8 @@ static int s5m_rtc_set_time(struct device *dev, struct rtc_time *tm) 1900 + tm->tm_year, 1 + tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec, tm->tm_wday); - ret = regmap_raw_write(info->regmap, SEC_RTC_SEC, data, 8); + ret = regmap_raw_write(info->regmap, info->regs->time, data, + info->regs->regs_count); if (ret < 0) return ret; @@ -278,70 +386,60 @@ static int s5m_rtc_set_time(struct device *dev, struct rtc_time *tm) static int s5m_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) { struct s5m_rtc_info *info = dev_get_drvdata(dev); - u8 data[8]; + u8 data[info->regs->regs_count]; unsigned int val; int ret, i; - ret = regmap_bulk_read(info->regmap, SEC_ALARM0_SEC, data, 8); + ret = regmap_bulk_read(info->regmap, info->regs->alarm0, data, + info->regs->regs_count); if (ret < 0) return ret; switch (info->device_type) { case S5M8763X: s5m8763_data_to_tm(data, &alrm->time); - ret = regmap_read(info->regmap, SEC_ALARM0_CONF, &val); + ret = regmap_read(info->regmap, S5M_ALARM0_CONF, &val); if (ret < 0) return ret; alrm->enabled = !!val; - - ret = regmap_read(info->regmap, SEC_RTC_STATUS, &val); - if (ret < 0) - return ret; - break; case S5M8767X: + case S2MPS14X: s5m8767_data_to_tm(data, &alrm->time, info->rtc_24hr_mode); - dev_dbg(dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__, - 1900 + alrm->time.tm_year, 1 + alrm->time.tm_mon, - alrm->time.tm_mday, alrm->time.tm_hour, - alrm->time.tm_min, alrm->time.tm_sec, - alrm->time.tm_wday); - alrm->enabled = 0; - for (i = 0; i < 7; i++) { + for (i = 0; i < info->regs->regs_count; i++) { if (data[i] & ALARM_ENABLE_MASK) { alrm->enabled = 1; break; } } - - alrm->pending = 0; - ret = regmap_read(info->regmap, SEC_RTC_STATUS, &val); - if (ret < 0) - return ret; break; default: return -EINVAL; } - if (val & ALARM0_STATUS) - alrm->pending = 1; - else - alrm->pending = 0; + dev_dbg(dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__, + 1900 + alrm->time.tm_year, 1 + alrm->time.tm_mon, + alrm->time.tm_mday, alrm->time.tm_hour, + alrm->time.tm_min, alrm->time.tm_sec, + alrm->time.tm_wday); + + ret = s5m_check_peding_alarm_interrupt(info, alrm); return 0; } static int s5m_rtc_stop_alarm(struct s5m_rtc_info *info) { - u8 data[8]; + u8 data[info->regs->regs_count]; int ret, i; struct rtc_time tm; - ret = regmap_bulk_read(info->regmap, SEC_ALARM0_SEC, data, 8); + ret = regmap_bulk_read(info->regmap, info->regs->alarm0, data, + info->regs->regs_count); if (ret < 0) return ret; @@ -352,14 +450,16 @@ static int s5m_rtc_stop_alarm(struct s5m_rtc_info *info) switch (info->device_type) { case S5M8763X: - ret = regmap_write(info->regmap, SEC_ALARM0_CONF, 0); + ret = regmap_write(info->regmap, S5M_ALARM0_CONF, 0); break; case S5M8767X: - for (i = 0; i < 7; i++) + case S2MPS14X: + for (i = 0; i < info->regs->regs_count; i++) data[i] &= ~ALARM_ENABLE_MASK; - ret = regmap_raw_write(info->regmap, SEC_ALARM0_SEC, data, 8); + ret = regmap_raw_write(info->regmap, info->regs->alarm0, data, + info->regs->regs_count); if (ret < 0) return ret; @@ -377,11 +477,12 @@ static int s5m_rtc_stop_alarm(struct s5m_rtc_info *info) static int s5m_rtc_start_alarm(struct s5m_rtc_info *info) { int ret; - u8 data[8]; + u8 data[info->regs->regs_count]; u8 alarm0_conf; struct rtc_time tm; - ret = regmap_bulk_read(info->regmap, SEC_ALARM0_SEC, data, 8); + ret = regmap_bulk_read(info->regmap, info->regs->alarm0, data, + info->regs->regs_count); if (ret < 0) return ret; @@ -393,10 +494,11 @@ static int s5m_rtc_start_alarm(struct s5m_rtc_info *info) switch (info->device_type) { case S5M8763X: alarm0_conf = 0x77; - ret = regmap_write(info->regmap, SEC_ALARM0_CONF, alarm0_conf); + ret = regmap_write(info->regmap, S5M_ALARM0_CONF, alarm0_conf); break; case S5M8767X: + case S2MPS14X: data[RTC_SEC] |= ALARM_ENABLE_MASK; data[RTC_MIN] |= ALARM_ENABLE_MASK; data[RTC_HOUR] |= ALARM_ENABLE_MASK; @@ -408,7 +510,8 @@ static int s5m_rtc_start_alarm(struct s5m_rtc_info *info) if (data[RTC_YEAR1] & 0x7f) data[RTC_YEAR1] |= ALARM_ENABLE_MASK; - ret = regmap_raw_write(info->regmap, SEC_ALARM0_SEC, data, 8); + ret = regmap_raw_write(info->regmap, info->regs->alarm0, data, + info->regs->regs_count); if (ret < 0) return ret; ret = s5m8767_rtc_set_alarm_reg(info); @@ -425,7 +528,7 @@ static int s5m_rtc_start_alarm(struct s5m_rtc_info *info) static int s5m_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) { struct s5m_rtc_info *info = dev_get_drvdata(dev); - u8 data[8]; + u8 data[info->regs->regs_count]; int ret; switch (info->device_type) { @@ -434,6 +537,7 @@ static int s5m_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) break; case S5M8767X: + case S2MPS14X: s5m8767_tm_to_data(&alrm->time, data); break; @@ -450,7 +554,8 @@ static int s5m_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) if (ret < 0) return ret; - ret = regmap_raw_write(info->regmap, SEC_ALARM0_SEC, data, 8); + ret = regmap_raw_write(info->regmap, info->regs->alarm0, data, + info->regs->regs_count); if (ret < 0) return ret; @@ -495,7 +600,7 @@ static const struct rtc_class_ops s5m_rtc_ops = { static void s5m_rtc_enable_wtsr(struct s5m_rtc_info *info, bool enable) { int ret; - ret = regmap_update_bits(info->regmap, SEC_WTSR_SMPL_CNTL, + ret = regmap_update_bits(info->regmap, info->regs->smpl_wtsr, WTSR_ENABLE_MASK, enable ? WTSR_ENABLE_MASK : 0); if (ret < 0) @@ -506,7 +611,7 @@ static void s5m_rtc_enable_wtsr(struct s5m_rtc_info *info, bool enable) static void s5m_rtc_enable_smpl(struct s5m_rtc_info *info, bool enable) { int ret; - ret = regmap_update_bits(info->regmap, SEC_WTSR_SMPL_CNTL, + ret = regmap_update_bits(info->regmap, info->regs->smpl_wtsr, SMPL_ENABLE_MASK, enable ? SMPL_ENABLE_MASK : 0); if (ret < 0) @@ -517,50 +622,41 @@ static void s5m_rtc_enable_smpl(struct s5m_rtc_info *info, bool enable) static int s5m8767_rtc_init_reg(struct s5m_rtc_info *info) { u8 data[2]; - unsigned int tp_read; int ret; - struct rtc_time tm; - ret = regmap_read(info->regmap, SEC_RTC_UDR_CON, &tp_read); - if (ret < 0) { - dev_err(info->dev, "%s: fail to read control reg(%d)\n", - __func__, ret); - return ret; - } + switch (info->device_type) { + case S5M8763X: + case S5M8767X: + /* UDR update time. Default of 7.32 ms is too long. */ + ret = regmap_update_bits(info->regmap, S5M_RTC_UDR_CON, + S5M_RTC_UDR_T_MASK, S5M_RTC_UDR_T_450_US); + if (ret < 0) + dev_err(info->dev, "%s: fail to change UDR time: %d\n", + __func__, ret); - /* Set RTC control register : Binary mode, 24hour mode */ - data[0] = (1 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT); - data[1] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT); + /* Set RTC control register : Binary mode, 24hour mode */ + data[0] = (1 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT); + data[1] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT); + + ret = regmap_raw_write(info->regmap, S5M_ALARM0_CONF, data, 2); + break; + + case S2MPS14X: + data[0] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT); + ret = regmap_write(info->regmap, info->regs->ctrl, data[0]); + break; + + default: + return -EINVAL; + } info->rtc_24hr_mode = 1; - ret = regmap_raw_write(info->regmap, SEC_ALARM0_CONF, data, 2); if (ret < 0) { dev_err(info->dev, "%s: fail to write controlm reg(%d)\n", __func__, ret); return ret; } - /* In first boot time, Set rtc time to 1/1/2012 00:00:00(SUN) */ - if ((tp_read & RTC_TCON_MASK) == 0) { - dev_dbg(info->dev, "rtc init\n"); - tm.tm_sec = 0; - tm.tm_min = 0; - tm.tm_hour = 0; - tm.tm_wday = 0; - tm.tm_mday = 1; - tm.tm_mon = 0; - tm.tm_year = 112; - tm.tm_yday = 0; - tm.tm_isdst = 0; - ret = s5m_rtc_set_time(info->dev, &tm); - } - - ret = regmap_update_bits(info->regmap, SEC_RTC_UDR_CON, - RTC_TCON_MASK, tp_read | RTC_TCON_MASK); - if (ret < 0) - dev_err(info->dev, "%s: fail to update TCON reg(%d)\n", - __func__, ret); - return ret; } @@ -570,7 +666,7 @@ static int s5m_rtc_probe(struct platform_device *pdev) struct sec_platform_data *pdata = s5m87xx->pdata; struct s5m_rtc_info *info; const struct regmap_config *regmap_cfg; - int ret; + int ret, alarm_irq; if (!pdata) { dev_err(pdev->dev.parent, "Platform data not supplied\n"); @@ -584,12 +680,18 @@ static int s5m_rtc_probe(struct platform_device *pdev) switch (pdata->device_type) { case S2MPS14X: regmap_cfg = &s2mps14_rtc_regmap_config; + info->regs = &s2mps_rtc_regs; + alarm_irq = S2MPS14_IRQ_RTCA0; break; case S5M8763X: regmap_cfg = &s5m_rtc_regmap_config; + info->regs = &s5m_rtc_regs; + alarm_irq = S5M8763_IRQ_ALARM0; break; case S5M8767X: regmap_cfg = &s5m_rtc_regmap_config; + info->regs = &s5m_rtc_regs; + alarm_irq = S5M8767_IRQ_RTCA1; break; default: dev_err(&pdev->dev, "Device type is not supported by RTC driver\n"); @@ -615,20 +717,11 @@ static int s5m_rtc_probe(struct platform_device *pdev) info->device_type = s5m87xx->device_type; info->wtsr_smpl = s5m87xx->wtsr_smpl; - switch (pdata->device_type) { - case S5M8763X: - info->irq = regmap_irq_get_virq(s5m87xx->irq_data, - S5M8763_IRQ_ALARM0); - break; - - case S5M8767X: - info->irq = regmap_irq_get_virq(s5m87xx->irq_data, - S5M8767_IRQ_RTCA1); - break; - - default: + info->irq = regmap_irq_get_virq(s5m87xx->irq_data, alarm_irq); + if (info->irq <= 0) { ret = -EINVAL; - dev_err(&pdev->dev, "Unsupported device type: %d\n", ret); + dev_err(&pdev->dev, "Failed to get virtual IRQ %d\n", + alarm_irq); goto err; } @@ -676,7 +769,7 @@ static void s5m_rtc_shutdown(struct platform_device *pdev) if (info->wtsr_smpl) { for (i = 0; i < 3; i++) { s5m_rtc_enable_wtsr(info, false); - regmap_read(info->regmap, SEC_WTSR_SMPL_CNTL, &val); + regmap_read(info->regmap, info->regs->smpl_wtsr, &val); pr_debug("%s: WTSR_SMPL reg(0x%02x)\n", __func__, val); if (val & WTSR_ENABLE_MASK) pr_emerg("%s: fail to disable WTSR\n", @@ -730,7 +823,8 @@ static int s5m_rtc_suspend(struct device *dev) 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", 0 }, + { "s5m-rtc", S5M8767X }, + { "s2mps14-rtc", S2MPS14X }, }; static struct platform_driver s5m_rtc_driver = { @@ -749,6 +843,6 @@ module_platform_driver(s5m_rtc_driver); /* Module information */ MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); -MODULE_DESCRIPTION("Samsung S5M RTC driver"); +MODULE_DESCRIPTION("Samsung S5M/S2MPS14 RTC driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:s5m-rtc"); diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c index a68e07a9bd46..681691bc233a 100644 --- a/fs/ocfs2/cluster/tcp.c +++ b/fs/ocfs2/cluster/tcp.c @@ -1799,7 +1799,7 @@ int o2net_register_hb_callbacks(void) /* ------------------------------------------------------------ */ -static int o2net_accept_one(struct socket *sock) +static int o2net_accept_one(struct socket *sock, int *more) { int ret, slen; struct sockaddr_in sin; @@ -1810,6 +1810,7 @@ static int o2net_accept_one(struct socket *sock) struct o2net_node *nn; BUG_ON(sock == NULL); + *more = 0; ret = sock_create_lite(sock->sk->sk_family, sock->sk->sk_type, sock->sk->sk_protocol, &new_sock); if (ret) @@ -1821,6 +1822,7 @@ static int o2net_accept_one(struct socket *sock) if (ret < 0) goto out; + *more = 1; new_sock->sk->sk_allocation = GFP_ATOMIC; ret = o2net_set_nodelay(new_sock); @@ -1919,11 +1921,36 @@ out: return ret; } +/* + * This function is invoked in response to one or more + * pending accepts at softIRQ level. We must drain the + * entire que before returning. + */ + static void o2net_accept_many(struct work_struct *work) { struct socket *sock = o2net_listen_sock; - while (o2net_accept_one(sock) == 0) + int more; + int err; + + /* + * It is critical to note that due to interrupt moderation + * at the network driver level, we can't assume to get a + * softIRQ for every single conn since tcp SYN packets + * can arrive back-to-back, and therefore many pending + * accepts may result in just 1 softIRQ. If we terminate + * the o2net_accept_one() loop upon seeing an err, what happens + * to the rest of the conns in the queue? If no new SYN + * arrives for hours, no softIRQ will be delivered, + * and the connections will just sit in the queue. + */ + + for (;;) { + err = o2net_accept_one(sock, &more); + if (!more) + break; cond_resched(); + } } static void o2net_listen_data_ready(struct sock *sk) diff --git a/include/linux/mfd/samsung/rtc.h b/include/linux/mfd/samsung/rtc.h index 3e02b768d537..b6401e7661c7 100644 --- a/include/linux/mfd/samsung/rtc.h +++ b/include/linux/mfd/samsung/rtc.h @@ -18,38 +18,38 @@ #ifndef __LINUX_MFD_SEC_RTC_H #define __LINUX_MFD_SEC_RTC_H -enum sec_rtc_reg { - SEC_RTC_SEC, - SEC_RTC_MIN, - SEC_RTC_HOUR, - SEC_RTC_WEEKDAY, - SEC_RTC_DATE, - SEC_RTC_MONTH, - SEC_RTC_YEAR1, - SEC_RTC_YEAR2, - SEC_ALARM0_SEC, - SEC_ALARM0_MIN, - SEC_ALARM0_HOUR, - SEC_ALARM0_WEEKDAY, - SEC_ALARM0_DATE, - SEC_ALARM0_MONTH, - SEC_ALARM0_YEAR1, - SEC_ALARM0_YEAR2, - SEC_ALARM1_SEC, - SEC_ALARM1_MIN, - SEC_ALARM1_HOUR, - SEC_ALARM1_WEEKDAY, - SEC_ALARM1_DATE, - SEC_ALARM1_MONTH, - SEC_ALARM1_YEAR1, - SEC_ALARM1_YEAR2, - SEC_ALARM0_CONF, - SEC_ALARM1_CONF, - SEC_RTC_STATUS, - SEC_WTSR_SMPL_CNTL, - SEC_RTC_UDR_CON, +enum s5m_rtc_reg { + S5M_RTC_SEC, + S5M_RTC_MIN, + S5M_RTC_HOUR, + S5M_RTC_WEEKDAY, + S5M_RTC_DATE, + S5M_RTC_MONTH, + S5M_RTC_YEAR1, + S5M_RTC_YEAR2, + S5M_ALARM0_SEC, + S5M_ALARM0_MIN, + S5M_ALARM0_HOUR, + S5M_ALARM0_WEEKDAY, + S5M_ALARM0_DATE, + S5M_ALARM0_MONTH, + S5M_ALARM0_YEAR1, + S5M_ALARM0_YEAR2, + S5M_ALARM1_SEC, + S5M_ALARM1_MIN, + S5M_ALARM1_HOUR, + S5M_ALARM1_WEEKDAY, + S5M_ALARM1_DATE, + S5M_ALARM1_MONTH, + S5M_ALARM1_YEAR1, + S5M_ALARM1_YEAR2, + S5M_ALARM0_CONF, + S5M_ALARM1_CONF, + S5M_RTC_STATUS, + S5M_WTSR_SMPL_CNTL, + S5M_RTC_UDR_CON, - SEC_RTC_REG_MAX, + S5M_RTC_REG_MAX, }; enum s2mps_rtc_reg { @@ -88,9 +88,9 @@ enum s2mps_rtc_reg { #define HOUR_12 (1 << 7) #define HOUR_AMPM (1 << 6) #define HOUR_PM (1 << 5) -#define ALARM0_STATUS (1 << 1) -#define ALARM1_STATUS (1 << 2) -#define UPDATE_AD (1 << 0) +#define S5M_ALARM0_STATUS (1 << 1) +#define S5M_ALARM1_STATUS (1 << 2) +#define S5M_UPDATE_AD (1 << 0) #define S2MPS_ALARM0_STATUS (1 << 2) #define S2MPS_ALARM1_STATUS (1 << 1) @@ -101,16 +101,26 @@ enum s2mps_rtc_reg { #define MODEL24_SHIFT 1 #define MODEL24_MASK (1 << MODEL24_SHIFT) /* RTC Update Register1 */ -#define RTC_UDR_SHIFT 0 -#define RTC_UDR_MASK (1 << RTC_UDR_SHIFT) +#define S5M_RTC_UDR_SHIFT 0 +#define S5M_RTC_UDR_MASK (1 << S5M_RTC_UDR_SHIFT) #define S2MPS_RTC_WUDR_SHIFT 4 #define S2MPS_RTC_WUDR_MASK (1 << S2MPS_RTC_WUDR_SHIFT) #define S2MPS_RTC_RUDR_SHIFT 0 #define S2MPS_RTC_RUDR_MASK (1 << S2MPS_RTC_RUDR_SHIFT) #define RTC_TCON_SHIFT 1 #define RTC_TCON_MASK (1 << RTC_TCON_SHIFT) -#define RTC_TIME_EN_SHIFT 3 -#define RTC_TIME_EN_MASK (1 << RTC_TIME_EN_SHIFT) +#define S5M_RTC_TIME_EN_SHIFT 3 +#define S5M_RTC_TIME_EN_MASK (1 << S5M_RTC_TIME_EN_SHIFT) +/* + * UDR_T field in S5M_RTC_UDR_CON register determines the time needed + * for updating alarm and time registers. Default is 7.32 ms. + */ +#define S5M_RTC_UDR_T_SHIFT 6 +#define S5M_RTC_UDR_T_MASK (0x3 << S5M_RTC_UDR_T_SHIFT) +#define S5M_RTC_UDR_T_7320_US (0x0 << S5M_RTC_UDR_T_SHIFT) +#define S5M_RTC_UDR_T_1830_US (0x1 << S5M_RTC_UDR_T_SHIFT) +#define S5M_RTC_UDR_T_3660_US (0x2 << S5M_RTC_UDR_T_SHIFT) +#define S5M_RTC_UDR_T_450_US (0x3 << S5M_RTC_UDR_T_SHIFT) /* RTC Hour register */ #define HOUR_PM_SHIFT 6 diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c index f45b75b713c0..b358a802fd18 100644 --- a/kernel/gcov/base.c +++ b/kernel/gcov/base.c @@ -85,6 +85,12 @@ void __gcov_merge_ior(gcov_type *counters, unsigned int n_counters) } EXPORT_SYMBOL(__gcov_merge_ior); +void __gcov_merge_time_profile(gcov_type *counters, unsigned int n_counters) +{ + /* Unused. */ +} +EXPORT_SYMBOL(__gcov_merge_time_profile); + /** * gcov_enable_events - enable event reporting through gcov_event() * diff --git a/kernel/gcov/gcc_4_7.c b/kernel/gcov/gcc_4_7.c index 2c6e4631c814..826ba9fb5e32 100644 --- a/kernel/gcov/gcc_4_7.c +++ b/kernel/gcov/gcc_4_7.c @@ -18,7 +18,12 @@ #include <linux/vmalloc.h> #include "gcov.h" +#if __GNUC__ == 4 && __GNUC_MINOR__ >= 9 +#define GCOV_COUNTERS 9 +#else #define GCOV_COUNTERS 8 +#endif + #define GCOV_TAG_FUNCTION_LENGTH 3 static struct gcov_info *gcov_info_head; |