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The IRQ is requested before the struct rtc is allocated and registered, but
this struct is used in the IRQ handler. This may lead to a NULL pointer
dereference.
Switch to devm_rtc_allocate_device/rtc_register_device to allocate the rtc
struct before requesting the IRQ.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
There is no point in resetting the time to epoch as this means that
userspace will never get the valuable information that time is actually
invalid.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
[Anders Roxell <anders.roxell@linaro.org>: remove unused variable r]
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Call the 64bit versions of rtc_tm time conversion as the range is enforced
by the core.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This RTC handles dates after 2106 (up to July 2554), call the 64bit
versions of rtc_tm time conversion.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Call the 64bit versions of rtc_tm time conversion as the range is enforced
by the core.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
There is no point in caching alarm_time for .read_alarm because
.read_alarm is only called at boo time and thus alarm_time is always 0.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The IRQ is requested before the struct rtc is allocated and registered, but
this struct is used in the IRQ handler. This may lead to a NULL pointer
dereference.
Switch to devm_rtc_allocate_device/rtc_register_device to allocate the rtc
struct before requesting the IRQ.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Fix checkpatch error:
drivers/rtc/rtc-test.c:155: ERROR: do not use assignment in if condition
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This makes it possible to probe the X1205 RTC from the
device tree. This is needed when adding device tree boot
support for the IXP4xx-based NSLU2 which has this RTC.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Covnert the header of the source file to SPDX.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Let the core handle the RTC range instead of open coding it.
Tested-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This RTC handles time from 2000-01-01 00:00:00 to 2099-12-31 23:59:59 with
a weird rollover to 2000-06-23 00:00:00.
Tested-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This allows further improvement of the driver.
Tested-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Use SPDX-License-Identifier instead of a verbose license text. Also fix the
block comment alignment.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The core already checks that the alarm is set in the future. IT is not
necessary to do it again in the driver.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The rtc_ops are already called with the RTC mutex locked so there is no
need to have a separate lock, unless it is used in the irq handler.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Use rtc_add_group to add the sysfs group in a race free manner.
This has the side effect of moving the files to their proper location.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
1. SPDX identifier cleanup for platform/chrome
2. Cleanup series between mfd and chrome/platform, moving
cros-ec attributes from mfd/cros_ec_dev to sub-drivers in platform/chrome.
3. Wilco EC driver
4. Maintainership change to new group repository.
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Merge tag 'tag-chrome-platform-for-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform updates from Benson Leung:
- SPDX identifier cleanup for platform/chrome
- Cleanup series between mfd and chrome/platform, moving cros-ec
attributes from mfd/cros_ec_dev to sub-drivers in platform/chrome
- Wilco EC driver
- Maintainership change to new group repository
* tag 'tag-chrome-platform-for-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: fix wilco-ec dependencies
platform/chrome: wilco_ec: Add RTC driver
platform/chrome: wilco_ec: Add support for raw commands in debugfs
platform/chrome: Add new driver for Wilco EC
platform/chrome: cros_ec: Remove cros_ec dependency in lpc_mec
MAINTAINERS: chrome-platform: change the git tree to a chrome-platform group git tree
platform/chrome: cros_ec_sysfs: remove pr_fmt() define
platform/chrome: cros_ec_lightbar: remove pr_fmt() define
platform/chrome: cros_kbd_led_backlight: switch to SPDX identifier
platform/chrome: cros_ec_spi: switch to SPDX identifier
platform/chrome: cros_ec_proto: switch to SPDX identifier
platform/chrome: cros_ec_lpc: switch to SPDX identifier
platform/chrome: cros_ec_i2c: switch to SPDX identifier
platform/chrome: cros_ec_vbc: switch to SPDX identifier
platform/chrome: cros_ec_sysfs: switch to SPDX identifier
platform/chrome: cros_ec_lightbar: switch to SPDX identifier
platform/chrome: cros_ec_debugfs: switch to SPDX identifier
platform/chrome: cromeos_pstore: switch to SPDX identifier
Use SPDX-License-Identifier instead of a verbose license text.
The original text refers to the COPYING file in the main directory which is
GPL v2 only so also update MODULE_LICENSE() to "GPL v2" instead of "GPL".
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The TX4939 RTC is a 48bit counter that counts two on every clock edge of
32.768 KHz oscillator clock so it counts 32bit seconds.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
