Gregory CLEMENT 489405fe5e rtc: armada38x: fix concurrency access in armada38x_rtc_set_time ... While setting the time, the RTC TIME register should not be accessed. However due to hardware constraints, setting the RTC time involves sleeping during 100ms. This sleep was done outside the critical section protected by the spinlock, so it was possible to read the RTC TIME register and get an incorrect value. This patch introduces a mutex for protecting the RTC TIME access, unlike the spinlock it is allowed to sleep in a critical section protected by a mutex. The RTC STATUS register can still be used from the interrupt handler but it has no effect on setting the time. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Andrew Lunn <andrew@lunn.ch> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: <stable@vger.kernel.org> [4.0] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2015-05-05 17:10:11 -07:00
..
class.c	drivers/rtc/class.c: initialize rtc name early	2015-04-17 09:04:01 -04:00
hctosys.c	rtc: use more standard kernel logging styles	2015-04-17 09:04:02 -04:00
interface.c	drivers/rtc/interface.c: __rtc_read_time: reduce log level	2015-04-17 09:04:01 -04:00
Kconfig	rtc: add rtc-abx80x, a driver for the Abracon AB x80x i2c rtc	2015-05-05 17:10:10 -07:00
Makefile	rtc: add rtc-abx80x, a driver for the Abracon AB x80x i2c rtc	2015-05-05 17:10:10 -07:00
rtc-88pm80x.c
rtc-88pm860x.c
rtc-ab3100.c
rtc-ab8500.c
rtc-ab-b5ze-s3.c	drivers/rtc/rtc-ab-b5ze-s3.c: constify struct regmap_config	2015-04-17 09:04:00 -04:00
rtc-abx80x.c	rtc: add rtc-abx80x, a driver for the Abracon AB x80x i2c rtc	2015-05-05 17:10:10 -07:00
rtc-armada38x.c	rtc: armada38x: fix concurrency access in armada38x_rtc_set_time	2015-05-05 17:10:11 -07:00
rtc-as3722.c
rtc-at32ap700x.c
rtc-at91rm9200.c	drivers/rtc/rtc-at91rm9200.c: make IO endian agnostic	2015-04-17 09:04:12 -04:00
rtc-at91rm9200.h
rtc-at91sam9.c
rtc-au1xxx.c
rtc-bfin.c
rtc-bq32k.c
rtc-bq4802.c
rtc-cmos.c	rtc: use more standard kernel logging styles	2015-04-17 09:04:02 -04:00
rtc-coh901331.c
rtc-core.h
rtc-da9052.c	drivers/rtc/rtc-da9052.c: register ability of alarm to wake device from suspend	2015-04-17 09:04:00 -04:00
rtc-da9055.c
rtc-da9063.c
rtc-davinci.c
rtc-dev.c
rtc-digicolor.c	rtc: driver for Conexant Digicolor CX92755 on-chip RTC	2015-04-17 09:04:01 -04:00
rtc-dm355evm.c
rtc-ds1216.c
rtc-ds1286.c
rtc-ds1302.c
rtc-ds1305.c	rtc: remove use of seq_printf return value	2015-04-15 16:35:24 -07:00
rtc-ds1307.c
rtc-ds1343.c
rtc-ds1347.c
rtc-ds1374.c	rtc: use more standard kernel logging styles	2015-04-17 09:04:02 -04:00
rtc-ds1390.c
rtc-ds1511.c
rtc-ds1553.c
rtc-ds1672.c
rtc-ds1685.c	rtc: use more standard kernel logging styles	2015-04-17 09:04:02 -04:00
rtc-ds1742.c
rtc-ds2404.c
rtc-ds3232.c	rtc: use more standard kernel logging styles	2015-04-17 09:04:02 -04:00
rtc-ds3234.c
rtc-efi-platform.c	rtc: use more standard kernel logging styles	2015-04-17 09:04:02 -04:00
rtc-efi.c
rtc-em3027.c	drivers/rtc/rtc-em3027.c: add device tree support	2015-04-17 09:03:59 -04:00
rtc-ep93xx.c
rtc-fm3130.c
rtc-generic.c
rtc-hid-sensor-time.c
rtc-hym8563.c	drivers/rtc/rtc-hym8563.c: fix swapped enable/disable of clockout control bit	2015-04-17 09:04:02 -04:00
rtc-imxdi.c
rtc-isl1208.c
rtc-isl12022.c
rtc-isl12057.c
rtc-jz4740.c
rtc-lib.c
rtc-lp8788.c
rtc-lpc32xx.c
rtc-ls1x.c
rtc-m41t80.c	rtc: use more standard kernel logging styles	2015-04-17 09:04:02 -04:00
rtc-m41t93.c
rtc-m41t94.c
rtc-m48t35.c
rtc-m48t59.c
rtc-m48t86.c
rtc-max6900.c
rtc-max6902.c
rtc-max8907.c
rtc-max8925.c
rtc-max8997.c	rtc: use more standard kernel logging styles	2015-04-17 09:04:02 -04:00
rtc-max8998.c
rtc-max77686.c	rtc: use more standard kernel logging styles	2015-04-17 09:04:02 -04:00
rtc-max77802.c
rtc-mc13xxx.c
rtc-mcp795.c
rtc-moxart.c
rtc-mpc5121.c
rtc-mrst.c	rtc: remove use of seq_printf return value	2015-04-15 16:35:24 -07:00
rtc-msm6242.c	rtc: use more standard kernel logging styles	2015-04-17 09:04:02 -04:00
rtc-mv.c
rtc-mxc.c
rtc-nuc900.c
rtc-omap.c	drivers/rtc/rtc-omap.c: use module_platform_driver	2015-04-17 09:04:02 -04:00
rtc-opal.c	rtc: use more standard kernel logging styles	2015-04-17 09:04:02 -04:00
rtc-palmas.c
rtc-pcap.c
rtc-pcf2123.c
rtc-pcf2127.c
rtc-pcf8523.c
rtc-pcf8563.c	drivers/rtc/rtc-pcf8563.c: simplify return from function	2015-04-17 09:03:59 -04:00
rtc-pcf8583.c
rtc-pcf50633.c
rtc-pcf85063.c
rtc-pl030.c
rtc-pl031.c
rtc-pm8xxx.c
rtc-proc.c
rtc-ps3.c
rtc-puv3.c
rtc-pxa.c
rtc-r9701.c
rtc-rc5t583.c
rtc-rk808.c
rtc-rp5c01.c
rtc-rs5c313.c
rtc-rs5c348.c
rtc-rs5c372.c
rtc-rv3029c2.c
rtc-rx4581.c
rtc-rx8025.c
rtc-rx8581.c
rtc-s3c.c	drivers/rtc/rtc-s3c.c: remove one superfluous rtc_valid_tm() check	2015-04-17 09:04:02 -04:00
rtc-s3c.h
rtc-s5m.c	drivers/rtc/rtc-s5m.c: allow usage on device type different than main MFD type	2015-04-17 09:04:11 -04:00
rtc-s35390a.c
rtc-sa1100.c
rtc-sh.c
rtc-sirfsoc.c
rtc-snvs.c
rtc-spear.c
rtc-starfire.c
rtc-stk17ta8.c
rtc-stmp3xxx.c	rtc: stmp3xxx: use optional crystal in low power states	2015-04-17 09:03:59 -04:00
rtc-sun4v.c
rtc-sun6i.c
rtc-sunxi.c
rtc-sysfs.c
rtc-tegra.c	rtc: remove use of seq_printf return value	2015-04-15 16:35:24 -07:00
rtc-test.c
rtc-tile.c
rtc-tps6586x.c
rtc-tps65910.c
rtc-tps80031.c
rtc-twl.c	rtc: use more standard kernel logging styles	2015-04-17 09:04:02 -04:00
rtc-tx4939.c
rtc-v3020.c
rtc-vr41xx.c
rtc-vt8500.c
rtc-wm831x.c
rtc-wm8350.c
rtc-x1205.c	drivers/rtc/rtc-x1205.c: use sign_extend32() for sign extension	2015-04-17 09:03:59 -04:00
rtc-xgene.c
systohc.c