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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-03 20:12:13 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-03 20:12:13 -0400 |
commit | 7f0ef0267e20d62d45d527911a993b1e998f4968 (patch) | |
tree | de51abc7da5903f59d83e23937f22420164c9477 /drivers/rtc/rtc-ds1302.c | |
parent | 862f0012549110d6f2586bf54b52ed4540cbff3a (diff) | |
parent | 9307c29524502c21f0e8a6d96d850b2f5bc0bd9a (diff) |
Merge branch 'akpm' (updates from Andrew Morton)
Merge first patch-bomb from Andrew Morton:
- various misc bits
- I'm been patchmonkeying ocfs2 for a while, as Joel and Mark have been
distracted. There has been quite a bit of activity.
- About half the MM queue
- Some backlight bits
- Various lib/ updates
- checkpatch updates
- zillions more little rtc patches
- ptrace
- signals
- exec
- procfs
- rapidio
- nbd
- aoe
- pps
- memstick
- tools/testing/selftests updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (445 commits)
tools/testing/selftests: don't assume the x bit is set on scripts
selftests: add .gitignore for kcmp
selftests: fix clean target in kcmp Makefile
selftests: add .gitignore for vm
selftests: add hugetlbfstest
self-test: fix make clean
selftests: exit 1 on failure
kernel/resource.c: remove the unneeded assignment in function __find_resource
aio: fix wrong comment in aio_complete()
drivers/w1/slaves/w1_ds2408.c: add magic sequence to disable P0 test mode
drivers/memstick/host/r592.c: convert to module_pci_driver
drivers/memstick/host/jmb38x_ms: convert to module_pci_driver
pps-gpio: add device-tree binding and support
drivers/pps/clients/pps-gpio.c: convert to module_platform_driver
drivers/pps/clients/pps-gpio.c: convert to devm_* helpers
drivers/parport/share.c: use kzalloc
Documentation/accounting/getdelays.c: avoid strncpy in accounting tool
aoe: update internal version number to v83
aoe: update copyright date
aoe: perform I/O completions in parallel
...
Diffstat (limited to 'drivers/rtc/rtc-ds1302.c')
-rw-r--r-- | drivers/rtc/rtc-ds1302.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/rtc/rtc-ds1302.c b/drivers/rtc/rtc-ds1302.c index d13954346286..07e8d79b4a09 100644 --- a/drivers/rtc/rtc-ds1302.c +++ b/drivers/rtc/rtc-ds1302.c | |||
@@ -23,8 +23,12 @@ | |||
23 | #define RTC_CMD_READ 0x81 /* Read command */ | 23 | #define RTC_CMD_READ 0x81 /* Read command */ |
24 | #define RTC_CMD_WRITE 0x80 /* Write command */ | 24 | #define RTC_CMD_WRITE 0x80 /* Write command */ |
25 | 25 | ||
26 | #define RTC_CMD_WRITE_ENABLE 0x00 /* Write enable */ | ||
27 | #define RTC_CMD_WRITE_DISABLE 0x80 /* Write disable */ | ||
28 | |||
26 | #define RTC_ADDR_RAM0 0x20 /* Address of RAM0 */ | 29 | #define RTC_ADDR_RAM0 0x20 /* Address of RAM0 */ |
27 | #define RTC_ADDR_TCR 0x08 /* Address of trickle charge register */ | 30 | #define RTC_ADDR_TCR 0x08 /* Address of trickle charge register */ |
31 | #define RTC_ADDR_CTRL 0x07 /* Address of control register */ | ||
28 | #define RTC_ADDR_YEAR 0x06 /* Address of year register */ | 32 | #define RTC_ADDR_YEAR 0x06 /* Address of year register */ |
29 | #define RTC_ADDR_DAY 0x05 /* Address of day of week register */ | 33 | #define RTC_ADDR_DAY 0x05 /* Address of day of week register */ |
30 | #define RTC_ADDR_MON 0x04 /* Address of month register */ | 34 | #define RTC_ADDR_MON 0x04 /* Address of month register */ |
@@ -161,6 +165,7 @@ static int ds1302_rtc_read_time(struct device *dev, struct rtc_time *tm) | |||
161 | 165 | ||
162 | static int ds1302_rtc_set_time(struct device *dev, struct rtc_time *tm) | 166 | static int ds1302_rtc_set_time(struct device *dev, struct rtc_time *tm) |
163 | { | 167 | { |
168 | ds1302_writebyte(RTC_ADDR_CTRL, RTC_CMD_WRITE_ENABLE); | ||
164 | /* Stop RTC */ | 169 | /* Stop RTC */ |
165 | ds1302_writebyte(RTC_ADDR_SEC, ds1302_readbyte(RTC_ADDR_SEC) | 0x80); | 170 | ds1302_writebyte(RTC_ADDR_SEC, ds1302_readbyte(RTC_ADDR_SEC) | 0x80); |
166 | 171 | ||
@@ -175,6 +180,8 @@ static int ds1302_rtc_set_time(struct device *dev, struct rtc_time *tm) | |||
175 | /* Start RTC */ | 180 | /* Start RTC */ |
176 | ds1302_writebyte(RTC_ADDR_SEC, ds1302_readbyte(RTC_ADDR_SEC) & ~0x80); | 181 | ds1302_writebyte(RTC_ADDR_SEC, ds1302_readbyte(RTC_ADDR_SEC) & ~0x80); |
177 | 182 | ||
183 | ds1302_writebyte(RTC_ADDR_CTRL, RTC_CMD_WRITE_DISABLE); | ||
184 | |||
178 | return 0; | 185 | return 0; |
179 | } | 186 | } |
180 | 187 | ||
@@ -234,19 +241,11 @@ static int __init ds1302_rtc_probe(struct platform_device *pdev) | |||
234 | return 0; | 241 | return 0; |
235 | } | 242 | } |
236 | 243 | ||
237 | static int __exit ds1302_rtc_remove(struct platform_device *pdev) | ||
238 | { | ||
239 | platform_set_drvdata(pdev, NULL); | ||
240 | |||
241 | return 0; | ||
242 | } | ||
243 | |||
244 | static struct platform_driver ds1302_platform_driver = { | 244 | static struct platform_driver ds1302_platform_driver = { |
245 | .driver = { | 245 | .driver = { |
246 | .name = DRV_NAME, | 246 | .name = DRV_NAME, |
247 | .owner = THIS_MODULE, | 247 | .owner = THIS_MODULE, |
248 | }, | 248 | }, |
249 | .remove = __exit_p(ds1302_rtc_remove), | ||
250 | }; | 249 | }; |
251 | 250 | ||
252 | module_platform_driver_probe(ds1302_platform_driver, ds1302_rtc_probe); | 251 | module_platform_driver_probe(ds1302_platform_driver, ds1302_rtc_probe); |