1
Commit Graph

512 Commits

Author SHA1 Message Date
Linus Torvalds
b2149f948c RTC for 6.12
New driver:
  - DFRobot SD2405AL
 
 Drivers:
  - stm32: add alarm A out and LSCO support
  - sun6i: disable automatic clock input switching
  - m48t59: set range
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Merge tag 'rtc-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "More conversions of DT bindings to yaml. There is one new driver, for
  the DFRobot SD2405AL and support for important features of the stm32
  RTC. Summary:

  New driver:
   - DFRobot SD2405AL

  Drivers:
   - stm32: add alarm A out and LSCO support
   - sun6i: disable automatic clock input switching
   - m48t59: set range"

* tag 'rtc-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: rc5t619: use proper module tables
  rtc: m48t59: set range
  dt-bindings: rtc: microcrystal,rv3028: add #clock-cells property
  rtc: m48t59: Remove division condition with direct comparison
  rtc: at91sam9: fix OF node leak in probe() error path
  rtc: sun6i: disable automatic clock input switching
  dt-bindings: rtc: Drop non-trivial duplicate compatibles
  dt-bindings: vendor-prefixes: Add DFRobot.
  dt-bindings: rtc: Add support for SD2405AL.
  rtc: Add driver for SD2405AL
  rtc: s35390a: Drop vendorless compatible string from match table
  rtc: twl: convert comma to semicolon
  dt-bindings: rtc: sprd,sc2731-rtc: convert to YAML
  rtc: stm32: add alarm A out feature
  rtc: stm32: add Low Speed Clock Output (LSCO) support
  rtc: stm32: add pinctrl and pinmux interfaces
  dt-bindings: rtc: stm32: describe pinmux nodes
2024-09-25 14:38:37 -07:00
Tóth János
5af858acea rtc: Add driver for SD2405AL
Add support for the DFRobot SD2405AL I2C RTC Module.

Datasheet:
	https://image.dfrobot.com/image/data/TOY0021/SD2405AL%20datasheet%20(Angelo%20v0.1).pdf

Product:
	https://www.dfrobot.com/product-1600.html

To instantiate (assuming device is connected to I2C-1)
as root:
	echo sd2405al 0x32 > /sys/bus/i2c/devices/i2c-1/new_device
as user:
	echo 'sd2405al 0x32' | sudo tee /sys/class/i2c-adapter/i2c-1/new_device

The driver is tested with:
	+ hwclock
	+ tools/testing/selftests/rtc/setdate
	+ tools/testing/selftests/rtc/rtctest

Reviewed-by: Csókás Bence <csokas.bence@prolan.hu>
Signed-off-by: Tóth János <gomba007@gmail.com>
Link: https://lore.kernel.org/r/20240830-rtc-sd2405al-v7-1-2f7102621b1d@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-09-12 00:33:24 +02:00
Peng Fan
3008598ef3 rtc: support i.MX95 BBM RTC
The BBM module provides RTC feature. To i.MX95, this module is managed by
System Manager and exported System Control Management Interface(SCMI).
Linux could use i.MX SCMI BBM Extension protocol to use RTC feature.

This driver is to use SCMI interface to get/set RTC.

Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Message-Id: <20240823-imx95-bbm-misc-v2-v8-6-e600ed9e9271@nxp.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2024-08-28 21:54:51 +01:00
Valentin Caron
bb7b0df2be rtc: stm32: add Low Speed Clock Output (LSCO) support
RTC is able to output on a pin the "LSE" internal clock.

STM32 RTC is now registered as a clock provider.
It provides rtc_lsco clock, that means RTC_LSCO is output on either
RTC_OUT1 or RTC_OUT2_RMP, depending on pinmux DT property.
The clock is marked as CLK_IGNORE_UNUSED and CLK_IS_CRITICAL because
RTC_LSCO can be early required by devices needed it to init.

Add LSCO in pinmux functions.

Add "stm32_rtc_clean_outs" to disable LSCO. As RTC is part of "backup"
power domain, it is not reset during shutdown or reboot. So force LSCO
disable at probe.

Co-developed-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Signed-off-by: Valentin Caron <valentin.caron@foss.st.com>
Link: https://lore.kernel.org/r/20240722160022.454226-4-valentin.caron@foss.st.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-08-14 11:37:07 +02:00
Valentin Caron
16ad2bc09e rtc: stm32: add pinctrl and pinmux interfaces
STM32 RTC is capable to handle 3 specific pins of the soc.
"out1, out2 and out2_rmp". To handle this, we use pinctrl framework.
There is a single pin per group.

Signed-off-by: Valentin Caron <valentin.caron@foss.st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20240722160022.454226-3-valentin.caron@foss.st.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-08-14 11:37:07 +02:00
Waqar Hameed
f8c81d15f4 rtc: Add driver for Epson RX8111
Epson RX8111 is an RTC with alarm, timer and timestamp functionality.
Add a basic driver with support for only reading/writing time (for now).

Signed-off-by: Waqar Hameed <waqar.hameed@axis.com>
Link: https://lore.kernel.org/r/0c3e1b03f276da47b26ac50f5d0ddf5c67aabe5c.1700491765.git.waqar.hameed@axis.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-04-17 01:45:33 +02:00
Randy Dunlap
544c42f798 rtc: mt6397: select IRQ_DOMAIN instead of depending on it
IRQ_DOMAIN is a hidden (not user visible) symbol. Users cannot set
it directly thru "make *config", so drivers should select it instead
of depending on it if they need it.
Relying on it being set for a dependency is risky.

Consistently using "select" or "depends on" can also help reduce
Kconfig circular dependency issues.

Therefore, change the use of "depends on" for IRQ_DOMAIN to
"select" for RTC_DRV_MT6397.

Fixes: 04d3ba70a3 ("rtc: mt6397: add IRQ domain dependency")
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Eddie Huang <eddie.huang@mediatek.com>
Cc: Sean Wang <sean.wang@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-rtc@vger.kernel.org
Cc: Marc Zyngier <maz@kernel.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Peter Rosin <peda@axentia.se>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20240213050258.6167-1-rdunlap@infradead.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-02-29 22:37:58 +01:00
Antoniu Miclaus
dedaf03b99 rtc: max31335: add driver support
RTC driver for MAX31335 ±2ppm Automotive Real-Time Clock with
Integrated MEMS Resonator.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://lore.kernel.org/r/20231120120114.48657-2-antoniu.miclaus@analog.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-01-15 23:27:59 +01:00
Antoniu Miclaus
cd0d7d6639 rtc: lpc24xx: add missing dependency
The driver depends on COMMON_CLK. Add the dependency in Kconfig.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://lore.kernel.org/r/20231114114532.37840-1-antoniu.miclaus@analog.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-01-08 01:13:56 +01:00
Esteban Blanc
9f67c1e639 rtc: tps6594: Add driver for TPS6594 RTC
TPS6594 PMIC is a MFD. This patch adds support for
the RTC found inside TPS6594 family of PMIC.

Alarm is also supported.

Signed-off-by: Esteban Blanc <eblanc@baylibre.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: Thomas Richard <thomas.richard@bootlin.com>
Link: https://lore.kernel.org/r/20231107094701.2223486-1-eblanc@baylibre.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2024-01-08 01:12:16 +01:00
Jacky Huang
dc0684adf3 rtc: Add driver for Nuvoton ma35d1 rtc controller
The ma35d1 rtc controller provides real-time and calendar messaging
capabilities. It supports programmable time tick and alarm match
interrupts. The time and calendar messages are expressed in BCD format.
This driver supports the built-in rtc controller of the ma35d1. It
enables setting and reading the rtc time and configuring and reading
the rtc alarm.

Signed-off-by: Jacky Huang <ychuang3@nuvoton.com>
Link: https://lore.kernel.org/r/20230925070251.28-4-ychuang570808@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-12-17 23:43:20 +01:00
Romain Perier
ebf6255868 rtc: Add support for the SSD202D RTC
Newer SigmaStar SSD202D SoCs contain a Real Time Clock, capable of
running while the system is sleeping (battery powered), this is not the
case with the other RTC on older SoCs. This adds basic support for this
RTC block.

Signed-off-by: Romain Perier <romain.perier@gmail.com>
Co-developed-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Link: https://lore.kernel.org/r/20230913151606.69494-2-romain.perier@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-10-16 16:54:15 +02:00
Uwe Kleine-König
2e2ad6393b rtc: imxdi: Soften dependencies for improved compile coverage
The driver compiles fine on x86_64, so soften the dependencies to
ARCH_MXC || COMPILE_TEST.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231002080529.2535610-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-10-13 12:29:08 +02:00
Arnd Bergmann
766c3f8a09 rtc: bq4802: add sparc dependency
The added HAS_IOPORT dependency might not actually be necessary as Geert
points out, but the driver is also only used on one architecture. Sparc
is also a special case here since it converts port numbers into virtual
addresses rather than having them mapped into a particular part of the
__iomem address space, so the difference is actually not important here.

Add a dependency on sparc, but allow compile-testing otherwise, to
make this clearer without anyone having to spend much time modernizing
the driver beyond that.

Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: David S. Miller <davem@davemloft.net>
Link: https://lore.kernel.org/all/CAMuHMdWEx0F=fNei4Bz_JPkuvoaN-+zk08h0i8KnSi_VjO615g@mail.gmail.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230719192835.1025406-1-arnd@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-07-27 23:09:55 +02:00
Hugo Villeneuve
afc505bf90 rtc: pcf2127: add support for PCF2131 RTC
This RTC is very similar in functionality to the PCF2127/29.

Basically it:
  -supports two new control registers at offsets 4 and 5
  -supports a new reset register (not implemented in this driver)
  -supports 4 tamper detection functions instead of 1
  -has no nvmem (like the PCF2129)
  -has two output interrupt pins

Because of that, most of the register addresses are very different,
although they still follow the same layout. For example, the tamper
registers have a different base address, but the offsets are all the same.

Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20230622145800.2442116-12-hugo@hugovil.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-07-27 22:54:52 +02:00
Linus Torvalds
b349de4c91 RTC for 6.5
Subsystem:
  - Switch i2c drivers back to use .probe()
  - Constify pointers to hwmon_channel_info
 
 New driver:
  - Loongson on chip RTC, replacing the Loongson 1 only driver
 
 Drivers:
  - isl1208: cleanup and support for RAA215300
  - st-lpc: cleanups
  - stm32: fix wakeup
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Merge tag 'rtc-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "The isl1208 dirver was reworked tobe able to work as part of an MFD.

  All the Loongson chips are now supported through a new driver, the old
  one is removed.

  Summary:

  Subsystem:
   - Switch i2c drivers back to use .probe()
   - Constify pointers to hwmon_channel_info

  New driver:
   - Loongson on chip RTC, replacing the Loongson 1 only driver

  Drivers:
   - isl1208: cleanup and support for RAA215300
   - st-lpc: cleanups
   - stm32: fix wakeup"

* tag 'rtc-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (21 commits)
  rtc: Add rtc driver for the Loongson family chips
  rtc: Remove the Loongson-1 RTC driver
  dt-bindings: rtc: Split loongson,ls2x-rtc into SoC-based compatibles
  rtc: rv3028: make rv3028 probeable from userspace
  rtc: isl1208: Add support for the built-in RTC on the PMIC RAA215300
  rtc: isl1208: Add isl1208_set_xtoscb()
  rtc: isl1208: Drop enum isl1208_id and split isl1208_configs[]
  rtc: isl1208: Make similar I2C and DT-based matching table
  rtc: isl1208: Drop name variable
  dt-bindings: rtc: isil,isl1208: Document clock and clock-names properties
  dt-bindings: rtc: isl1208: Convert to json-schema
  rtc: st-lpc: Simplify clk handling in st_rtc_probe()
  rtc: st-lpc: Release some resources in st_rtc_probe() in case of error
  rtc: stm32: remove dedicated wakeup management
  dt-bindings: rtc: restrict node name suffixes
  rtc: add HAS_IOPORT dependencies
  rtc: Switch i2c drivers back to use .probe()
  rtc: rv3032: constify pointers to hwmon_channel_info
  rtc: isl12022: constify pointers to hwmon_channel_info
  rtc: ds3232: constify pointers to hwmon_channel_info
  ...
2023-07-03 10:43:10 -07:00
Binbin Zhou
1b733a9ebc rtc: Add rtc driver for the Loongson family chips
The Loongson family chips use an on-chip counter 0 (Time Of Year
counter) as the RTC. We will refer to them as rtc-loongson.

Cc: Keguang Zhang <keguang.zhang@gmail.com>
Cc: Yang Ling <gnaygnil@gmail.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@kernel.org>
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Keguang Zhang <keguang.zhang@gmail.com>
Tested-by: Keguang Zhang <keguang.zhang@gmail.com>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Tested-by: Jiaxun Yang <jiaxun.yang@flygoat.com> # LS7A
Link: https://lore.kernel.org/r/0c5171156390f614d72f36ceb04a20f432ca639e.1685693501.git.zhoubinbin@loongson.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-26 01:19:11 +02:00
Binbin Zhou
9fb2309065 rtc: Remove the Loongson-1 RTC driver
Remove the ls1x-rtc driver as it is obsolete. We will continue to
support the ls1x RTC in the upcoming Loongson unified RTC driver
rtc-loongson.

Cc: Keguang Zhang <keguang.zhang@gmail.com>
Cc: zhao zhang <zhzhl555@gmail.com>
Cc: Yang Ling <gnaygnil@gmail.com>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Acked-by: Keguang Zhang <keguang.zhang@gmail.com>
Link: https://lore.kernel.org/r/c38c666015a162d7031b20a48209ce577bab62cd.1685693501.git.zhoubinbin@loongson.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-26 01:19:11 +02:00
Niklas Schnelle
8bb12adb21 rtc: add HAS_IOPORT dependencies
In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
not being declared. We thus need to add HAS_IOPORT as dependency for
those drivers using them.

Co-developed-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@kernel.org>
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Acked-by: Maciej W. Rozycki <macro@orcam.me.uk>
Link: https://lore.kernel.org/r/20230522105049.1467313-31-schnelle@linux.ibm.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-06-06 23:33:25 +02:00
Sebastian Reichel
c20e8c5b12 mfd: rk808: Split into core and i2c
Split rk808 into a core and an i2c part in preparation for
SPI support.

Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> # for RTC
Tested-by: Diederik de Haas <didi.debian@cknow.org> # Rock64, Quartz64 Model A + B
Tested-by: Vincent Legoll <vincent.legoll@gmail.com> # Pine64 QuartzPro64
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230504173618.142075-6-sebastian.reichel@collabora.com
Signed-off-by: Lee Jones <lee@kernel.org>
2023-05-15 16:19:03 +01:00
Conor Dooley
f12f0c7da3 rtc: mpfs: convert SOC_MICROCHIP_POLARFIRE to ARCH_MICROCHIP_POLARFIRE
As part of converting RISC-V SOC_FOO symbols to ARCH_FOO to match the
use of such symbols on other architectures, convert the Microchip FPGA
RTC driver to use the new symbol.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230309204452.969574-5-conor@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-03-17 23:12:58 +01:00
Linus Torvalds
271d89394e RTC for 6.3
Subsystem:
  - allow rtc_read_alarm without read_alarm callback
 
 New driver:
  - NXP BBNSM module RTC
 
 Drivers:
  - use IRQ flags from fwnode when available
  - abx80x: nvmem support
  - brcmstb-waketimer: add non-wake alarm support
  - ingenic: provide CLK32K clock
  - isl12022: cleanups
  - moxart: switch to using gpiod API
  - pcf85363: allow setting quartz load
  - pm8xxx: cleanups and support for setting time
  - rv3028, rv3032: add ACPI support
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Merge tag 'rtc-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "A few drivers got some nice cleanups and a new driver are making the
  bulk of the changes.

  Subsystem:
   - allow rtc_read_alarm without read_alarm callback

  New driver:
   - NXP BBNSM module RTC

  Drivers:
   - use IRQ flags from fwnode when available
   - abx80x: nvmem support
   - brcmstb-waketimer: add non-wake alarm support
   - ingenic: provide CLK32K clock
   - isl12022: cleanups
   - moxart: switch to using gpiod API
   - pcf85363: allow setting quartz load
   - pm8xxx: cleanups and support for setting time
   - rv3028, rv3032: add ACPI support"

* tag 'rtc-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (64 commits)
  rtc: pm8xxx: add support for nvmem offset
  dt-bindings: rtc: qcom-pm8xxx: add nvmem-cell offset
  rtc: abx80x: Add nvmem support
  rtc: rx6110: Remove unused of_gpio,h
  rtc: efi: Avoid spamming the log on RTC read failure
  rtc: isl12022: sort header inclusion alphabetically
  rtc: isl12022: Join string literals back
  rtc: isl12022: Drop unneeded OF guards and of_match_ptr()
  rtc: isl12022: Explicitly use __le16 type for ISL12022_REG_TEMP_L
  rtc: isl12022: Get rid of unneeded private struct isl12022
  rtc: pcf85363: add support for the quartz-load-femtofarads property
  dt-bindings: rtc: nxp,pcf8563: move pcf85263/pcf85363 to a dedicated binding
  rtc: allow rtc_read_alarm without read_alarm callback
  rtc: rv3032: add ACPI support
  rtc: rv3028: add ACPI support
  rtc: bbnsm: Add the bbnsm rtc support
  rtc: jz4740: Register clock provider for the CLK32K pin
  rtc: jz4740: Use dev_err_probe()
  rtc: jz4740: Use readl_poll_timeout
  dt-bindings: rtc: Add #clock-cells property
  ...
2023-03-03 09:15:50 -08:00
Jacky Bai
eb7b85853c rtc: bbnsm: Add the bbnsm rtc support
The BBNSM module includes a real time counter with alarm.
Add a RTC driver for this function.

Signed-off-by: Jacky Bai <ping.bai@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20230215024117.3357341-3-ping.bai@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-02-22 12:25:32 +01:00
Paul Cercueil
5ddfa148de rtc: jz4740: Register clock provider for the CLK32K pin
On JZ4770 and JZ4780, the CLK32K pin is configurable. By default, it is
configured as a GPIO in input mode, and its value can be read through
GPIO PD14.

With this change, clients can now request the 32 kHz clock on the CLK32K
pin, through Device Tree. This clock is simply a pass-through of the
input oscillator's clock with enable/disable operations.

This will permit the WiFi/Bluetooth chip to work on the MIPS CI20 board,
which does source one of its clocks from the CLK32K pin.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20230129120442.22858-5-paul@crapouillou.net
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2023-02-09 23:38:00 +01:00
Arnd Bergmann
6388bbad4a rtc: remove v3020 driver
The v3020 RTC driver was exclusively used by the now removed
cm-x300.c machine.

Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-rtc@vger.kernel.org
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-02-01 17:23:38 +01:00
Arnd Bergmann
1ea35b3557 ARM: s3c: remove s3c24xx specific hacks
A number of device drivers reference CONFIG_ARM_S3C24XX_CPUFREQ or
similar symbols that are no longer available with the platform gone,
though the drivers themselves are still used on newer platforms,
so remove these hacks.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-01-16 09:26:05 +01:00
Linus Torvalds
7406fd75a9 - New Drivers
- Add support for Ampere Computing SMpro
    - Add support for TI TPS65219 PMIC
 
  - New Functionality
    - Add support for multiple devices of the same type; rk808
 
  - Fix-ups
    - Convert a bunch of I2C class drivers over to .probe_new()
    - Remove superfluous includes; mc13xxx-*, palmas, timberdale
    - Use correct includes for GPIO handling; madera-core
    - Convert to GPIOD; twl6040
    - Remove unused platform data handling; twl6040
    - Device Tree changes; many
    - Remove unused drivers; dm355evm_msp, davinci_voicecodec, htc-i2cpld
    - Add support for modules; palmas
    - Enable COMPILE_TEST support; intel_soc_pmic*
    - Trivial: spelling / whitespace fixes; mc13xxx-spi
    - Replace old PM helpers with new ones; many
    - Convert deprecated mask_invert usage to unmask_base; many
    - Use devm_*() calls; qcom_rpm
    - MAINTAINER fix-ups
    - Make use of improved / replaced APIs; palmas, fsl-imx25-tsadc,
                                            stm32-lptimer, qcom_rpm, rohm-*
 
  - Bug Fixes
    - Add bounds / error checking; mt6360-core
    - No sleeping inside critical sections; axp20x
    - Fix missing dependencies; ROHM_BD957XMUF
    - Repair error paths; qcom-pm8008
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Merge tag 'mfd-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Add support for Ampere Computing SMpro
   - Add support for TI TPS65219 PMIC

  New Functionality:
   - Add support for multiple devices of the same type; rk808

  Fix-ups:
   - Convert a bunch of I2C class drivers over to .probe_new()
   - Remove superfluous includes; mc13xxx-*, palmas, timberdale
   - Use correct includes for GPIO handling; madera-core
   - Convert to GPIOD; twl6040
   - Remove unused platform data handling; twl6040
   - Device Tree changes; many
   - Remove unused drivers; dm355evm_msp, davinci_voicecodec, htc-i2cpld
   - Add support for modules; palmas
   - Enable COMPILE_TEST support; intel_soc_pmic*
   - Trivial: spelling / whitespace fixes; mc13xxx-spi
   - Replace old PM helpers with new ones; many
   - Convert deprecated mask_invert usage to unmask_base; many
   - Use devm_*() calls; qcom_rpm
   - MAINTAINER fix-ups
   - Make use of improved / replaced APIs; palmas, fsl-imx25-tsadc,
     stm32-lptimer, qcom_rpm, rohm-*

  Bug Fixes:
   - Add bounds / error checking; mt6360-core
   - No sleeping inside critical sections; axp20x
   - Fix missing dependencies; ROHM_BD957XMUF
   - Repair error paths; qcom-pm8008"

* tag 'mfd-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (161 commits)
  dt-bindings: mfd: da9062: Correct file name for watchdog
  mfd: pm8008: Fix return value check in pm8008_probe()
  mfd: rohm: Use dev_err_probe()
  mfd: Drop obsolete dependencies on COMPILE_TEST
  dt-bindings: mfd: da9062: Move IRQ to optional properties
  mfd: qcom_rpm: Use devm_of_platform_populate() to simplify code
  mfd: qcom_rpm: Fix an error handling path in qcom_rpm_probe()
  mfd: stm32-lptimer: Use devm_platform_get_and_ioremap_resource()
  mfd: rohm-bd9576: Convert to i2c's .probe_new()
  mfd: fsl-imx25-tsadc: Use devm_platform_get_and_ioremap_resource()
  dt-bindings: Fix maintainer email for a few ROHM ICs
  mfd: palmas: Use device_get_match_data() to simplify the code
  Input: Add tps65219 interrupt driven powerbutton
  mfd: tps65219: Add driver for TI TPS65219 PMIC
  mfd: bd957x: Fix Kconfig dependency on REGMAP_IRQ
  mfd: wcd934x: Convert irq chip to config regs
  mfd: tps65090: Replace irqchip mask_invert with unmask_base
  mfd: sun4i-gpadc: Replace irqchip mask_invert with unmask_base
  mfd: stpmic1: Fix swapped mask/unmask in irq chip
  mfd: sprd-sc27xx-spi: Replace irqchip mask_invert with unmask_base
  ...
2022-12-21 09:19:24 -08:00
Jean Delvare
bb0a1799bb rtc: isl12026: drop obsolete dependency on COMPILE_TEST
Since commit 0166dc11be ("of: make CONFIG_OF user selectable"), it
is possible to test-build any driver which depends on OF on any
architecture by explicitly selecting OF. Therefore depending on
COMPILE_TEST as an alternative is no longer needed.

It is actually better to always build such drivers with OF enabled,
so that the test builds are closer to how each driver will actually be
built on its intended target. Building them without OF may not test
much as the compiler will optimize out potentially large parts of the
code. In the worst case, this could even pop false positive warnings.
Dropping COMPILE_TEST here improves the quality of our testing and
avoids wasting time on non-existent issues.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20221124154359.039be06c@endymion.delvare
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2022-12-15 23:34:31 +01:00
Arnd Bergmann
fc45720334 mfd: Remove dm355evm_msp driver
The DaVinci DM355EVM platform is gone after the removal of all
unused board files, so the MTD device along with its sub-devices
can be removed as well.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20221019152947.3857217-7-arnd@kernel.org
2022-12-07 13:28:08 +00:00
Arnd Bergmann
97e78b64d1 rtc: remove davinci rtc driver
The Davinci dm365 SoC support was removed, so the rtc driver
has no remaining users.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20221019152947.3857217-9-arnd@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2022-11-15 21:01:51 +01:00
Rasmus Villemoes
b1a1baa657 rtc: isl12022: switch to using regmap API
The regmap abstraction allows us to avoid the private i2c transfer
helpers, and also offers some nice utility functions such as the
regmap_update_bits family.

While at it, simplify the code even more by not keeping track of
->write_enabled: rtc_set_time is not a hot path, so one extra i2c read
doesn't hurt (regmap_update_bits elides the write when the bits are
already as desired).

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Link: https://lore.kernel.org/r/20220921114624.3250848-9-linux@rasmusvillemoes.dk
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2022-10-13 00:17:22 +02:00
Mia Lin
5adbaed16c rtc: Add NCT3018Y real time clock driver
Add real time clock support for NCT3018Y.

Signed-off-by: Mia Lin <mimi05633@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220713090647.8028-4-mimi05633@gmail.com
2022-07-26 17:07:04 +02:00
Thomas Bogendoerfer
2a692245b6 rtc: vr41xx: remove driver
Commit d3164e2f3b ("MIPS: Remove VR41xx support") removed support
for MIPS VR41xx platform, so remove exclusive drivers for this
platform, too.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220715135330.134684-1-tsbogend@alpha.franken.de
2022-07-26 16:34:12 +02:00
Nishanth Menon
b09d633575 rtc: Introduce ti-k3-rtc
Introduce support for Texas Instruments Real Time Clock controller on
newer K3 family of SoCs such as AM62x.

The hardware module that is being supported is the "digital only"
version which doesn't have capability of external wakeup sources and
external power backup. However, for many practical applications, this
should suffice as RTC is operational across low power sequences.

The hardware block by itself is split into two distinct domains
internally to further reduce the power consumption with the actual
counter block and comparators clocked off a 32k clock source (which
based on SoC integration can be sourced by an external crystal) and an
register interface block which is driven by the bus clock. While optimal
from power perspective, it does create some complicated synchronizations
and sequences that one must be wary of in the driver handling.

Acked-by: Andrew Davis <afd@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Tested-by: Georgi Vlaev <g-vlaev@ti.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220623170808.20998-3-nm@ti.com
2022-06-24 21:35:31 +02:00
Conor Dooley
0b31d70359 rtc: Add driver for Microchip PolarFire SoC
Add support for the built-in RTC on Microchip PolarFire SoC

Co-Developed-by: Daire McNamara <daire.mcnamara@microchip.com>
Signed-off-by: Daire McNamara <daire.mcnamara@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220601123320.2861043-2-conor.dooley@microchip.com
2022-06-24 21:24:02 +02:00
Michel Pollet
deeb4b5393 rtc: rzn1: Add new RTC driver
Add a basic RTC driver for the RZ/N1.

Signed-off-by: Michel Pollet <michel.pollet@bp.renesas.com>
Co-developed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220516082504.33913-3-miquel.raynal@bootlin.com
2022-05-17 23:11:44 +02:00
Linus Torvalds
6a34fdcca4 RTC for 5.18
Subsystem:
  - remove uie_unsupported, all users have been converted to clear
    RTC_FEATURE_UPDATE_INTERRUPT and provide a reason
  - RTCs with an alarm with a resolution of a minute are now letting the core
    handle rounding down the alarm time
  - fix use-after-free on device removal
 
 New driver:
  - OP-TEE RTC PTA
 
 Drivers:
  - sun6i: Add H616 support
  - cmos: Fix the AltCentury for AMD platforms
  - spear: set range
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Merge tag 'rtc-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "The bulk of the patches are about replacing the uie_unsupported struct
  rtc_device member by a feature bit.

  Subsystem:

   - remove uie_unsupported, all users have been converted to clear
     RTC_FEATURE_UPDATE_INTERRUPT and provide a reason

   - RTCs with an alarm with a resolution of a minute are now letting
     the core handle rounding down the alarm time

   - fix use-after-free on device removal

  New driver:

   - OP-TEE RTC PTA

  Drivers:

   - sun6i: Add H616 support

   - cmos: Fix the AltCentury for AMD platforms

   - spear: set range"

* tag 'rtc-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (56 commits)
  rtc: check if __rtc_read_time was successful
  rtc: gamecube: Fix refcount leak in gamecube_rtc_read_offset_from_sram
  rtc: mc146818-lib: Fix the AltCentury for AMD platforms
  rtc: optee: add RTC driver for OP-TEE RTC PTA
  rtc: pm8xxx: Return -ENODEV if set_time disallowed
  rtc: pm8xxx: Attach wake irq to device
  clk: sunxi-ng: sun6i-rtc: include clk/sunxi-ng.h
  rtc: remove uie_unsupported
  rtc: xgene: stop using uie_unsupported
  rtc: hym8563: switch to RTC_FEATURE_UPDATE_INTERRUPT
  rtc: hym8563: let the core handle the alarm resolution
  rtc: hym8563: switch to devm_rtc_allocate_device
  rtc: efi: switch to RTC_FEATURE_UPDATE_INTERRUPT
  rtc: efi: switch to devm_rtc_allocate_device
  rtc: add new RTC_FEATURE_ALARM_WAKEUP_ONLY feature
  rtc: spear: fix spear_rtc_read_time
  rtc: spear: drop uie_unsupported
  rtc: spear: set range
  rtc: spear: switch to devm_rtc_allocate_device
  rtc: pcf8563: switch to RTC_FEATURE_UPDATE_INTERRUPT
  ...
2022-04-01 09:37:18 -07:00
Clément Léger
81c2f059ab rtc: optee: add RTC driver for OP-TEE RTC PTA
This drivers allows to communicate with a RTC PTA handled by OP-TEE [1].
This PTA allows to query RTC information, set/get time and set/get
offset depending on the supported features.

[1] https://github.com/OP-TEE/optee_os/pull/5179

Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220308133505.471601-1-clement.leger@bootlin.com
2022-03-25 11:42:50 +01:00
Luca Ceresoli
c58e496311 rtc: max77686: Add MAX77714 support
The RTC included in the MAX77714 PMIC is very similar to the one in the
MAX77686. Reuse the rtc-max77686.c driver with the minimum required changes
for the MAX77714 RTC.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2022-03-07 13:55:04 +00:00
Vincent Shih
fad6cbe9b2 rtc: Add driver for RTC in Sunplus SP7021
Add driver for RTC in Sunplus SP7021

Signed-off-by: Vincent Shih <vincent.sunplus@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1638517579-10316-2-git-send-email-vincent.sunplus@gamil.com
2022-01-05 01:00:29 +01:00
Emmanuel Gil Peyrot
86559400b3 rtc: gamecube: Add a RTC driver for the GameCube, Wii and Wii U
These three consoles share a device, the MX23L4005, which contains a
clock and 64 bytes of SRAM storage, and is exposed on the EXI bus
(similar to SPI) on channel 0, device 1.  This driver allows it to be
used as a Linux RTC device, where time can be read and set.

The hardware also exposes two timers, one which shuts down the console
and one which powers it on, but these aren’t supported currently.

On the Wii U, the counter bias is stored in a XML file, /config/rtc.xml,
encrypted in the SLC (eMMC storage), using a proprietary filesystem.  In
order to avoid having to implement all that, this driver assumes a
bootloader will parse this XML file and write the bias into the SRAM, at
the same location the other two consoles have it.

Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211215175501.6761-2-linkmauve@linkmauve.fr
2021-12-16 10:46:35 +01:00
Linus Torvalds
3b81bf78b7 RTC for 5.16
Subsystem:
  - Add new ioctl to get and set extra RTC parameters, this includes backup
    switch mode
  - Expose available features to userspace, in particular, when alarmas have a
    resolution of one minute instead of a second.
  - Let the core handle those alarms with a minute resolution
 
 New driver:
  - MSTAR MSC313 RTC
 
 Drivers:
  - Add SPI ID table where necessary
  - Add BSM support for rv3028, rv3032 and pcf8523
  - s3c: set RTC range
  - rx8025: set range, implement .set_offset and .read_offset
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Merge tag 'rtc-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "This includes new ioctls to get and set parameters and in particular
  the backup switch mode that is needed for some RTCs to actually enable
  the backup voltage (and have a useful RTC).

  The same interface can also be used to get the actual features
  supported by the RTC so userspace has a better way than trying and
  failing.

  Summary:

  Subsystem:
   - Add new ioctl to get and set extra RTC parameters, this includes
     backup switch mode
   - Expose available features to userspace, in particular, when alarmas
     have a resolution of one minute instead of a second.
   - Let the core handle those alarms with a minute resolution

  New driver:
   - MSTAR MSC313 RTC

  Drivers:
   - Add SPI ID table where necessary
   - Add BSM support for rv3028, rv3032 and pcf8523
   - s3c: set RTC range
   - rx8025: set range, implement .set_offset and .read_offset"

* tag 'rtc-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (50 commits)
  rtc: rx8025: use .set_offset/.read_offset
  rtc: rx8025: use rtc_add_group
  rtc: rx8025: clear RTC_FEATURE_ALARM when alarm are not supported
  rtc: rx8025: set range
  rtc: rx8025: let the core handle the alarm resolution
  rtc: rx8025: switch to devm_rtc_allocate_device
  rtc: ab8500: let the core handle the alarm resolution
  rtc: ab-eoz9: support UIE when available
  rtc: ab-eoz9: use RTC_FEATURE_UPDATE_INTERRUPT
  rtc: rv3032: let the core handle the alarm resolution
  rtc: s35390a: let the core handle the alarm resolution
  rtc: handle alarms with a minute resolution
  rtc: pcf85063: silence cppcheck warning
  rtc: rv8803: fix writing back ctrl in flag register
  rtc: s3c: Add time range
  rtc: s3c: Extract read/write IO into separate functions
  rtc: s3c: Remove usage of devm_rtc_device_register()
  rtc: tps80031: Remove driver
  rtc: sun6i: Allow probing without an early clock provider
  rtc: pcf8523: add BSM support
  ...
2021-11-12 11:44:31 -08:00
Dmitry Osipenko
005870f46c rtc: tps80031: Remove driver
Driver was upstreamed in 2013 and never got a user, remove it.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211021192258.21968-2-digetx@gmail.com
2021-10-23 23:52:48 +02:00
Alexandre Belloni
91f3849d95 rtc: pcf8523: switch to regmap
Use regmap to access the RTC registers, this is a huge reduction in code
lines and generated code. Values on ARMv7:

   text	   data	    bss	    dec	    hex
   5180	    132	      0	   5312	   14c0	before
   3900	    132	      0	   4032	    fc0	after

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211018153651.82069-1-alexandre.belloni@bootlin.com
2021-10-18 17:38:05 +02:00
Will McVicker
d96890fca9 rtc: s3c: remove HAVE_S3C_RTC in favor of direct dependencies
The config HAVE_S3C_RTC is not really needed since we can simply just
add the dependencies directly to RTC_DRV_S3C. Also, one less config to
keep track of!

Signed-off-by: Will McVicker <willmcvicker@google.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211013212256.3425889-1-willmcvicker@google.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
2021-10-17 19:15:12 +02:00
Daniel Palmer
be7d9c9161 rtc: Add support for the MSTAR MSC313 RTC
This adds support for the RTC block on the Mstar MSC313e SoCs and newer.

Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Co-developed-by: Romain Perier <romain.perier@gmail.com>
Signed-off-by: Romain Perier <romain.perier@gmail.com>
Reviewed-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210823171613.18941-3-romain.perier@gmail.com
2021-09-26 00:17:25 +02:00
Yu-Tung Chang
0c45d3e24e rtc: rx8010: select REGMAP_I2C
The rtc-rx8010 uses the I2C regmap but doesn't select it in Kconfig so
depending on the configuration the build may fail. Fix it.

Signed-off-by: Yu-Tung Chang <mtwget@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210830052532.40356-1-mtwget@gmail.com
2021-09-09 10:18:40 +02:00
Alexandre Belloni
b02c96464f rtc: move RTC_LIB_KUNIT_TEST to proper location
Move RTC_LIB_KUNIT_TEST under RTC_LIB so it is clear in the menu this is
part of the RTC subsystem.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210810212008.631359-2-alexandre.belloni@bootlin.com
2021-08-10 23:22:20 +02:00
Cassio Neri
1d1bb12a8b rtc: Improve performance of rtc_time64_to_tm(). Add tests.
The current implementation of rtc_time64_to_tm() contains unnecessary
loops, branches and look-up tables. The new one uses an arithmetic-based
algorithm appeared in [1] and is approximately 4.3 times faster (YMMV).

The drawback is that the new code isn't intuitive and contains many 'magic
numbers' (not unusual for this type of algorithm). However, [1] justifies
all those numbers and, given this function's history, the code is unlikely
to need much maintenance, if any at all.

Add a KUnit test case that checks every day in a 160,000 years interval
starting on 1970-01-01 against the expected result. Add a new config
RTC_LIB_KUNIT_TEST symbol to give the option to run this test suite.

[1] Neri, Schneider, "Euclidean Affine Functions and Applications to
Calendar Algorithms". https://arxiv.org/abs/2102.06959

Signed-off-by: Cassio Neri <cassio.neri@gmail.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210624201343.85441-1-cassio.neri@gmail.com
2021-08-10 00:09:21 +02:00
Matti Vaittinen
e5e3352580 rtc: bd70528: Drop BD70528 support
The only known BD70528 use-cases are such that the PMIC is controlled
from separate MCU which is not running Linux. I am not aware of
any Linux driver users. Furthermore, it seems there is no demand for
this IC. Let's ease the maintenance burden and drop the driver. We can
always add it back if there is sudden need for it.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210527105819.GA3111334@localhost.localdomain
2021-06-20 22:24:52 +02:00