kernel/drivers/rtc/rtc-r7301.c, branch linux-5.1.yHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-5.1.y2018-07-07T15:52:26Zheaders: separate linux/mod_devicetable.h from linux/platform_device.h2018-07-07T15:52:26ZRandy Dunlaprdunlap@infradead.org2018-06-20T05:47:28Zurn:sha1:ac3167257b9fe16c9426c2087ead1c9f1b0992b1
At over 4000 #includes, <linux/platform_device.h> is the 9th most
#included header file in the Linux kernel. It does not need
<linux/mod_devicetable.h>, so drop that header and explicitly add
<linux/mod_devicetable.h> to source files that need it.
4146 #include <linux/platform_device.h>
After this patch, there are 225 files that use <linux/mod_devicetable.h>,
for a reduction of around 3900 times that <linux/mod_devicetable.h>
does not have to be read & parsed.
225 #include <linux/mod_devicetable.h>
This patch was build-tested on 20 different arch-es.
It also makes these drivers SubmitChecklist#1 compliant.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kbuild test robot <lkp@intel.com> # drivers/media/platform/vimc/
Reported-by: kbuild test robot <lkp@intel.com> # drivers/pinctrl/pinctrl-u300.c
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
rtc: r7301: stop validating rtc_time in .read_time2018-03-02T09:12:18ZAlexandre Bellonialexandre.belloni@bootlin.com2018-02-20T23:18:23Zurn:sha1:50a9a35ac6a6466814c23e6178d9babefbfca71f
The RTC core is always calling rtc_valid_tm after the read_time callback.
It is not necessary to call it just before returning from the callback.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
rtc: r7301: Fix a possible sleep-in-atomic bug in rtc7301_set_time2018-01-11T23:20:34ZJia-Ju Baibaijiaju1990@gmail.com2017-12-13T13:56:04Zurn:sha1:298c8545206b2dd963079ff48fafd909e099856e
The driver may sleep under a spinlock.
The function call path is:
rtc7301_set_time (acquire the spinlock)
usleep_range --> may sleep
To fix it, usleep_range is replaced with udelay.
This bug is found by my static analysis tool(DSAC) and checked by my code review.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
rtc: r7301: Fix a possible sleep-in-atomic bug in rtc7301_read_time2018-01-11T23:20:28ZJia-Ju Baibaijiaju1990@gmail.com2017-12-13T13:55:50Zurn:sha1:cd8c0bb2bd57c48c451ebea86065257ef2500b00
The driver may sleep under a spinlock.
The function call path is:
rtc7301_read_time (acquire the spinlock)
rtc7301_wait_while_busy
usleep_range --> may sleep
To fix it, usleep_range is replaced with udelay.
This bug is found by my static analysis tool(DSAC) and checked by my code review.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
rtc: add support for EPSON TOYOCOM RTC-7301SF/DG2016-12-18T23:59:21ZAkinobu Mitaakinobu.mita@gmail.com2016-12-04T14:04:39Zurn:sha1:0b6a8f5c9bebe51b95ff23939db570e8d298a36f
This adds support for EPSON TOYOCOM RTC-7301SF/DG which has parallel
interface compatible with SRAM.
This driver supports basic clock, calendar and alarm functionality.
Tested with Microblaze linux running on Artix7 FPGA board with my own
custom IP for RTC-7301.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>