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2019-09-01rtc: pcf8563: add Epson RTC8564 compatibleAlexandre Belloni
Add a compatible string for the Epson RTC8564. Link: https://lore.kernel.org/r/20190829212547.19185-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-09-01rtc: s35390a: convert to devm_i2c_new_dummy_device()Wolfram Sang
I was about to simplify the call to i2c_unregister_device() when I realized that converting to devm_i2c_new_dummy_device() will simplify the driver a lot. So I took this approach. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20190830133124.21633-3-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-09-01rtc: max77686: convert to devm_i2c_new_dummy_device()Wolfram Sang
I was about to simplify the call to i2c_unregister_device() when I realized that converting to devm_i2c_new_dummy_device() will simplify the driver a lot. So I took this approach. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20190830133124.21633-2-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-09-01rtc: pcf85363/pcf85263: fix regmap error in set_timeBiwen Li
Issue: - # hwclock -w hwclock: RTC_SET_TIME: Invalid argument Why: - Relative commit: 8b9f9d4dc511 ("regmap: verify if register is writeable before writing operations"), this patch will always check for unwritable registers, it will compare reg with max_register in regmap_writeable. - The pcf85363/pcf85263 has the capability of address wrapping which means if you access an address outside the allowed range (0x00-0x2f) hardware actually wraps the access to a lower address. The rtc-pcf85363 driver will use this feature to configure the time and execute 2 actions in the same i2c write operation (stopping the clock and configure the time). However the driver has also configured the `regmap maxregister` protection mechanism that will block accessing addresses outside valid range (0x00-0x2f). How: - Split of writing regs to two parts, first part writes control registers about stop_enable and resets, second part writes RTC time and date registers. Signed-off-by: Biwen Li <biwen.li@nxp.com> Link: https://lore.kernel.org/r/20190829021418.4607-1-biwen.li@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-09-01rtc: snvs: switch to rtc_time64_to_tm/rtc_tm_to_time64Alexandre Belloni
Call the 64bit versions of rtc_tm time conversion now that the range is enforced by the core. Link: https://lore.kernel.org/r/20190828205056.31321-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-09-01rtc: snvs: set rangeAlexandre Belloni
The SNVS is a 47-bit counter incremented at 32768Hz, it is then a 32-bit second counter. Link: https://lore.kernel.org/r/20190828205056.31321-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-29rtc: snvs: fix possible race conditionAnson Huang
The RTC IRQ is requested before the struct rtc_device is allocated, this may lead to a NULL pointer dereference in IRQ handler. To fix this issue, allocating the rtc_device struct before requesting the RTC IRQ using devm_rtc_allocate_device, and use rtc_register_device to register the RTC device. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Link: https://lore.kernel.org/r/20190716071858.36750-1-Anson.Huang@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-27rtc: pcf2127: bugfix: watchdog build dependencyBruno Thomsen
Disable watchdog registation when kernel is build without watchdog functionality, and enable watchdog core otherwise. This removes compile errors like the one below: drivers/rtc/rtc-pcf2127.o: in function `pcf2127_probe.constprop.3': rtc-pcf2127.c:(.text.unlikely+0x2c8): undefined reference to `devm_watchdog_register_device' Watchdog feature in chip will always be configured as this is safe to do in both cases and minimize code churn. Reported-by: Hulk Robot <hulkci@huawei.com> Reported-by: YueHaibing <yuehaibing@huawei.com> Fixes: bbc597561ce1 ("rtc: pcf2127: add watchdog feature support") Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com> Link: https://lore.kernel.org/r/20190827143656.4734-1-bruno.thomsen@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-27rtc: pcf2127: add tamper detection supportBruno Thomsen
Add support for integrated tamper detection function in both PCF2127 and PCF2129 chips. This patch implements the feature by adding an additional timestamp0 file to sysfs device path. This file contains seconds since epoch, if an event occurred, or is empty, if none occurred. Interface should match ISL1208 and RV3028 RTC drivers. Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com> Link: https://lore.kernel.org/r/20190822131936.18772-5-bruno.thomsen@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-27rtc: pcf2127: add watchdog feature supportBruno Thomsen
Add partial support for the watchdog functionality of both PCF2127 and PCF2129 chips. The programmable watchdog timer is currently using a fixed clock source of 1Hz. This result in a selectable range of 1-255 seconds, which covers most embedded Linux use-cases. Clock sources of 4096Hz, 64Hz and 1/60Hz is mostly useful in MCU use-cases. Countdown timer not available when using watchdog feature. Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20190822131936.18772-4-bruno.thomsen@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-23rtc: pcf2127: bugfix: read rtc disables watchdogBruno Thomsen
The previous fix listed bulk read of registers as root cause of accendential disabling of watchdog, since the watchdog counter register (WD_VAL) was zeroed. Fixes: 3769a375ab83 rtc: pcf2127: bulk read only date and time registers. Tested with the same PCF2127 chip as Sean reveled root cause of WD_VAL register value zeroing was caused by reading CTRL2 register which is one of the watchdog feature control registers. So the solution is to not read the first two control registers (CTRL1 and CTRL2) in pcf2127_rtc_read_time as they are not needed anyway. Size of local buf variable is kept to allow easy usage of register defines to improve readability of code. Debug trace line was updated after CTRL1 and CTRL2 are no longer read from the chip. Also replaced magic numbers in buf access with register defines. Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com> Link: https://lore.kernel.org/r/20190822131936.18772-3-bruno.thomsen@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-23rtc: pcf2127: cleanup register and bit definesBruno Thomsen
Cleanup of defines to follow kernel coding style and increase code readability by using same register and bit define style. Change PCF2127_REG_RAM_{addr_MSB,wrt_cmd,rd_cmd} to upper case as kernel coding guide section 12 'Macros, Enums and RTL' states "Names of macros defining constants and labels in enums are capitalized". Improve readability of RAM register comment by making whole sentences. Remove parentheses from register defines as they are only used for expressions and not constants. As there are no clear style for name of registers and bits in the kernel drivers, I suggest the following for at least this driver, but hopefully also other RTC drivers. Register name should follow this convention: [chip]_REG_[reg name] 0xXX Bit name should follow this convention, so it clearly states which chip register it's part of: [chip]_BIT_[reg name]_[bit name] BIT(X) Additionally I suggest bit defines are always placed right below its corresponding register define and using an extra tab indentation for the BIT(X) part. This will visually make it easy to see that bit defines are part of the complete register definition. Rename PCF2127_OSF to PCF2127_BIT_SC_OSF and move it right below PCF2127_REG_SC. This will improve readability of bit checks as it's easy to verify that it uses the correct register. Move end of line comments above register defines as it's more like a heading for 1 register define and up to 8 bit defines or a collection of registers that are close related like timestamp split across 6 registers. Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com> Link: https://lore.kernel.org/r/20190822131936.18772-2-bruno.thomsen@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-23rtc: pcf2127: convert to devm_rtc_allocate_deviceBruno Thomsen
This allows further improvement of the driver. Signed-off-by: Bruno Thomsen <bruno.thomsen@gmail.com> Link: https://lore.kernel.org/r/20190822131936.18772-1-bruno.thomsen@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-23rtc: sun6i: Add support for H6 RTCOndrej Jirman
RTC on H6 is mostly the same as on H5 and H3. It has slight differences mostly in features that are not yet supported by this driver. Some differences are already stated in the comments in existing code. One other difference is that H6 has extra bit in LOSC_CTRL_REG, called EXT_LOSC_EN to enable/disable external low speed crystal oscillator. It also has bit EXT_LOSC_STA in LOSC_AUTO_SWT_STA_REG, to check whether external low speed oscillator is working correctly. This patch adds support for enabling LOSC when necessary: - during reparenting - when probing the clock H6 also has capacbility to automatically reparent RTC clock from external crystal oscillator, to internal RC oscillator, if external oscillator fails. This is enabled by default. Disable it during probe. Signed-off-by: Ondrej Jirman <megous@megous.com> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Link: https://lore.kernel.org/r/20190820151934.3860-3-megous@megous.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-23dt-bindings: rtc: sun6i: Add compatible for H6 RTCOndrej Jirman
RTC on H6 is similar to the one on H5 SoC, but incompatible in small details. See the driver for description of differences. For example H6 RTC needs to enable the external low speed oscillator. Add new compatible for this RTC. Signed-off-by: Ondrej Jirman <megous@megous.com> Link: https://lore.kernel.org/r/20190820151934.3860-2-megous@megous.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-23rtc: fsl-ftm-alarm: add FTM alarm driverBiwen Li
For the platforms including LS1012A, LS1021A, LS1028A, LS1043A, LS1046A, LS1088A, LS208xA that has the FlexTimer module, implementing alarm functions within RTC subsystem to wakeup the system when system going to sleep (work with RCPM driver). Signed-off-by: Biwen Li <biwen.li@nxp.com> Link: https://lore.kernel.org/r/20190813030157.48590-1-biwen.li@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-23dt-bindings: rtc: add bindings for FlexTimer ModuleBiwen Li
The patch adds bindings for FlexTimer Module Signed-off-by: Biwen Li <biwen.li@nxp.com> Link: https://lore.kernel.org/r/20190813030157.48590-2-biwen.li@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-22rtc: Add Amlogic Virtual Wake RTCNeil Armstrong
The Amlogic Meson GX SoCs uses a special register to store the time in seconds to wakeup after a system suspend. In order to be able to reuse the RTC wakealarm feature, this driver implements a fake RTC device which uses the system time to deduce a suspend delay. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> [khilman: rebase to v5.3-rc, rework and modernization] Signed-off-by: Kevin Hilman <khilman@baylibre.com> Link: https://lore.kernel.org/r/20190812232850.8016-3-khilman@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-22dt-bindings: rtc: new binding for Amlogic VRTCKevin Hilman
Add binding fo the new VRTC driver for Amlogic SoCs. The 64-bit family of SoCs only has an RTC managed by firmware, and this VRTC driver provides the simple, one-register firmware interface. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Kevin Hilman <khilman@baylibre.com> Link: https://lore.kernel.org/r/20190812232850.8016-2-khilman@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-21rtc: rv3029: revert error handling patch to rv3029_eeprom_write()Dan Carpenter
My error handling "cleanup" was totally wrong. Both the "err" and "ret" variables are required. The "err" variable holds the error codes for rv3029_eeprom_enter/exit() and the "ret" variable holds the error codes for if actual write fails. In my patch if the write failed, the function probably still returned success. Reported-by: Tom Evans <tom.evans@motec.com.au> Fixes: 97f5b0379c38 ("rtc: rv3029: Clean up error handling in rv3029_eeprom_write()") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20190817065604.GB29951@mwanda Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-21rtc: ds1672: remove unnecessary checkAlexandre Belloni
The rtc pointer is already checked earlier, it is not necessary to check it again. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20190818215232.17320-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-21rtc: remove superfluous error messageAlexandre Belloni
The RTC core now has error messages in case of registration failure, there is no need to have other messages in the drivers. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20190818220041.17833-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-20rtc: class: add debug message when registration failsAlexandre Belloni
Add a message when __rtc_register_device fails because rtc->ops is NULL. This may only happen when developing a new driver so use dev_dbg to avoid compiling it in by default. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20190818220041.17833-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-20rtc: pcf2123: add proper compatible stringAlexandre Belloni
nxp,rtc-pcf2123 is not a proper compatible strong for this RTC. The part name is only pcf2123 and is less confusing. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20190819182656.29744-9-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-20rtc: pcf2123: let the core handle range offsettingAlexandre Belloni
Set the RTC range properly and use the core windowing and offsetting to (unfortunately) map back to a 1970-2069 range. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20190819182656.29744-8-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-20rtc: pcf2123: convert to devm_rtc_allocate_deviceAlexandre Belloni
This allows further improvement of the driver. Also remove the unecessary error string as the core will already display error messages. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20190819182656.29744-7-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-20rtc: pcf2123: remove useless error path gotoAlexandre Belloni
kfree_exit only returns ret, remove it. This also fixes the devm_regmap_init_spi error case where the probe wouldn't actually fail because ret is initialized to 0. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20190819182656.29744-6-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-20rtc: pcf2123: rename struct and variablesAlexandre Belloni
Rename struct pcf2123_plat_data to struct pcf2123_data and pdata to pcf2123 to make the driver use a more common subsystem style. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20190819182656.29744-5-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-20rtc: pcf2123: stop using dev.platform_dataAlexandre Belloni
platform_data is for platform specific data, use driver_data instead. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20190819182656.29744-4-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-20rtc: pcf2123: implement .alarm_irq_enableAlexandre Belloni
Implement .alarm_irq_enable so it is possible to use RTC_ALM_SET, RTC_AIE_ON and RTC_AIE_OFF. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20190819182656.29744-3-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-20rtc; pcf2123: fix possible alarm race conditionAlexandre Belloni
Clear the flag after disabling the alarm to ensure the alarm doesn't fire between clearing the flag and disabling the alarm. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20190819182656.29744-2-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-20rtc: pcf2123: don't use weekday alarmAlexandre Belloni
The week day may not be set properly by userspace. This would result is missed alarms. Disable alarm matching on weekday. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20190819182656.29744-1-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-13rtc: Remove dev_err() usage after platform_get_irq()Stephen Boyd
We don't need dev_err() messages when platform_get_irq() fails now that platform_get_irq() prints an error message itself when something goes wrong. Let's remove these prints with a simple semantic patch. // <smpl> @@ expression ret; struct platform_device *E; @@ ret = ( platform_get_irq(E, ...) | platform_get_irq_byname(E, ...) ); if ( \( ret < 0 \| ret <= 0 \) ) { ( -if (ret != -EPROBE_DEFER) -{ ... -dev_err(...); -... } | ... -dev_err(...); ) ... } // </smpl> While we're here, remove braces on if statements that only have one statement (manually). Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: linux-rtc@vger.kernel.org Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20190730181557.90391-40-swboyd@chromium.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-12rtc: mxc: use spin_lock_irqsave instead of spin_lock_irq in IRQ contextFuqian Huang
As spin_unlock_irq will enable interrupts. mxc_rtc_irq_enable is called from interrupt handler mxc_rtc_interrupt. Interrupts are enabled in interrupt handler. Use spin_lock_irqsave/spin_unlock_irqrestore instead of spin_(un)lock_irq in IRQ context to avoid this. Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com> Link: https://lore.kernel.org/r/20190807082310.10135-1-huangfq.daxian@gmail.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-12rtc: bd70528: fix driver dependenciesMatti Vaittinen
With CONFIG_BD70528_WATCHDOG=m, a built-in rtc driver cannot call into the low-level functions that are part of the watchdog module: drivers/rtc/rtc-bd70528.o: In function `bd70528_set_time': rtc-bd70528.c:(.text+0x22c): undefined reference to `bd70528_wdt_lock' rtc-bd70528.c:(.text+0x2a8): undefined reference to `bd70528_wdt_unlock' drivers/rtc/rtc-bd70528.o: In function `bd70528_set_rtc_based_timers': rtc-bd70528.c:(.text+0x50c): undefined reference to `bd70528_wdt_set' Add a Kconfig dependency which forces RTC to be a module if watchdog is a module. If watchdog is not compiled at all the stub functions for watchdog control are used. compiling the RTC without watchdog is fine. Fixes: 32a4a4ebf768 ("rtc: bd70528: Initial support for ROHM bd70528 RTC") Suggested-by: Arnd Bergmann <arnd@arndb.de> Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Link: https://lore.kernel.org/r/84462e01e43d39024948a3bdd24087ff87dc2255.1565591387.git.matti.vaittinen@fi.rohmeurope.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-08-12rtc: remove w90x900/nuc900 driverArnd Bergmann
The ARM w90x900 platform is getting removed, so this driver is obsolete. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20190809202749.742267-15-arnd@arndb.de Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-07-23rtc: s5m: convert to i2c_new_dummy_deviceWolfram Sang
Move from i2c_new_dummy() to i2c_new_dummy_device(), so we now get an ERRPTR which we use in error handling. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Tested-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20190722172618.4061-5-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-07-23rtc: s35390a: convert to i2c_new_dummy_deviceWolfram Sang
Move from i2c_new_dummy() to i2c_new_dummy_device(), so we now get an ERRPTR which we use in error handling. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20190722172618.4061-4-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-07-23rtc: max77686: convert to i2c_new_dummy_deviceWolfram Sang
Move from i2c_new_dummy() to i2c_new_dummy_device(), so we now get an ERRPTR which we use in error handling. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Tested-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20190722172618.4061-3-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-07-22rtc: isl12026: convert to i2c_new_dummy_deviceWolfram Sang
Move from i2c_new_dummy() to i2c_new_dummy_device(), so we now get an ERRPTR which we use in error handling. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20190722172618.4061-2-wsa+renesas@sang-engineering.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-07-22dt-bindings: rtc: Remove the PCF8563 from the trivial RTCsMaxime Ripard
The PCF8563 has a binding of its own, with some, clocks related, additional properties. Remove it from the trivial RTC bindings. Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://lore.kernel.org/r/20190722140921.22681-1-maxime.ripard@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-07-22rtc: imxdi: use devm_platform_ioremap_resource() to simplify codeAnson Huang
Use the new helper devm_platform_ioremap_resource() which wraps the platform_get_resource() and devm_ioremap_resource() together, to simplify the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Link: https://lore.kernel.org/r/20190717081411.30622-1-Anson.Huang@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-07-22rtc: mxc_v2: use devm_platform_ioremap_resource() to simplify codeAnson Huang
Use the new helper devm_platform_ioremap_resource() which wraps the platform_get_resource() and devm_ioremap_resource() together, to simplify the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Link: https://lore.kernel.org/r/20190717081217.30518-1-Anson.Huang@nxp.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-07-21Linus 5.3-rc1Linus Torvalds
2019-07-21Merge tag 'devicetree-fixes-for-5.3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull Devicetree fixes from Rob Herring: "Fix several warnings/errors in validation of binding schemas" * tag 'devicetree-fixes-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: dt-bindings: pinctrl: stm32: Fix missing 'clocks' property in examples dt-bindings: iio: ad7124: Fix dtc warnings in example dt-bindings: iio: avia-hx711: Fix avdd-supply typo in example dt-bindings: pinctrl: aspeed: Fix AST2500 example errors dt-bindings: pinctrl: aspeed: Fix 'compatible' schema errors dt-bindings: riscv: Limit cpus schema to only check RiscV 'cpu' nodes dt-bindings: Ensure child nodes are of type 'object'
2019-07-21Merge branch 'work.misc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs documentation typo fix from Al Viro. * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: typo fix: it's d_make_root, not d_make_inode...
2019-07-21Merge tag '5.3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull cifs fixes from Steve French: "Two fixes for stable, one that had dependency on earlier patch in this merge window and can now go in, and a perf improvement in SMB3 open" * tag '5.3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: update internal module number cifs: flush before set-info if we have writeable handles smb3: optimize open to not send query file internal info cifs: copy_file_range needs to strip setuid bits and update timestamps CIFS: fix deadlock in cached root handling
2019-07-21iommu/amd: fix a crash in iova_magazine_free_pfnsQian Cai
The commit b3aa14f02254 ("iommu: remove the mapping_error dma_map_ops method") incorrectly changed the checking from dma_ops_alloc_iova() in map_sg() causes a crash under memory pressure as dma_ops_alloc_iova() never return DMA_MAPPING_ERROR on failure but 0, so the error handling is all wrong. kernel BUG at drivers/iommu/iova.c:801! Workqueue: kblockd blk_mq_run_work_fn RIP: 0010:iova_magazine_free_pfns+0x7d/0xc0 Call Trace: free_cpu_cached_iovas+0xbd/0x150 alloc_iova_fast+0x8c/0xba dma_ops_alloc_iova.isra.6+0x65/0xa0 map_sg+0x8c/0x2a0 scsi_dma_map+0xc6/0x160 pqi_aio_submit_io+0x1f6/0x440 [smartpqi] pqi_scsi_queue_command+0x90c/0xdd0 [smartpqi] scsi_queue_rq+0x79c/0x1200 blk_mq_dispatch_rq_list+0x4dc/0xb70 blk_mq_sched_dispatch_requests+0x249/0x310 __blk_mq_run_hw_queue+0x128/0x200 blk_mq_run_work_fn+0x27/0x30 process_one_work+0x522/0xa10 worker_thread+0x63/0x5b0 kthread+0x1d2/0x1f0 ret_from_fork+0x22/0x40 Fixes: b3aa14f02254 ("iommu: remove the mapping_error dma_map_ops method") Signed-off-by: Qian Cai <cai@lca.pw> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-07-21hexagon: switch to generic version of pte allocationMike Rapoport
The hexagon implementation pte_alloc_one(), pte_alloc_one_kernel(), pte_free_kernel() and pte_free() is identical to the generic except of lack of __GFP_ACCOUNT for the user PTEs allocation. Switch hexagon to use generic version of these functions. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-07-21Merge tag 'ntb-5.3' of git://github.com/jonmason/ntbLinus Torvalds
Pull NTB updates from Jon Mason: "New feature to add support for NTB virtual MSI interrupts, the ability to test and use this feature in the NTB transport layer. Also, bug fixes for the AMD and Switchtec drivers, as well as some general patches" * tag 'ntb-5.3' of git://github.com/jonmason/ntb: (22 commits) NTB: Describe the ntb_msi_test client in the documentation. NTB: Add MSI interrupt support to ntb_transport NTB: Add ntb_msi_test support to ntb_test NTB: Introduce NTB MSI Test Client NTB: Introduce MSI library NTB: Rename ntb.c to support multiple source files in the module NTB: Introduce functions to calculate multi-port resource index NTB: Introduce helper functions to calculate logical port number PCI/switchtec: Add module parameter to request more interrupts PCI/MSI: Support allocating virtual MSI interrupts ntb_hw_switchtec: Fix setup MW with failure bug ntb_hw_switchtec: Skip unnecessary re-setup of shared memory window for crosslink case ntb_hw_switchtec: Remove redundant steps of switchtec_ntb_reinit_peer() function NTB: correct ntb_dev_ops and ntb_dev comment typos NTB: amd: Silence shift wrapping warning in amd_ntb_db_vector_mask() ntb_hw_switchtec: potential shift wrapping bug in switchtec_ntb_init_sndev() NTB: ntb_transport: Ensure qp->tx_mw_dma_addr is initaliazed NTB: ntb_hw_amd: set peer limit register NTB: ntb_perf: Clear stale values in doorbell and command SPAD register NTB: ntb_perf: Disable NTB link after clearing peer XLAT registers ...
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