Serge Semin 9ea9c92275 i2c: designware: Use standard optional ref clock implementation ... [ Upstream commit 27071b5cbca59d8e8f8750c199a6cbf8c9799963 ] Even though the DW I2C controller reference clock source is requested by the method devm_clk_get() with non-optional clock requirement the way the clock handler is used afterwards has a pure optional clock semantic (though in some circumstances we can get a warning about the clock missing printed in the system console). There is no point in reimplementing that functionality seeing the kernel clock framework already supports the optional interface from scratch. Thus let's convert the platform driver to using it. Note by providing this commit we get to fix two problems. The first one was introduced in commit c62ebb3d5f ("i2c: designware: Add support for an interface clock"). It causes not having the interface clock (pclk) enabled/disabled in case if the reference clock isn't provided. The second problem was first introduced in commit b33af11de2 ("i2c: designware: Do not require clock when SSCN and FFCN are provided"). Since that modification the deferred probe procedure has been unsupported in case if the interface clock isn't ready. Fixes: c62ebb3d5f ("i2c: designware: Add support for an interface clock") Fixes: b33af11de2 ("i2c: designware: Do not require clock when SSCN and FFCN are provided") Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-06-22 14:13:18 +02:00
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algos	i2c: algo: pca: Reapply i2c bus settings after reset	2020-09-09 10:22:40 +02:00
busses	i2c: designware: Use standard optional ref clock implementation	2022-06-22 14:13:18 +02:00
muxes	i2c: mux: demux-pinctrl: do not deactivate a master that is not active	2022-04-08 14:40:22 +02:00
i2c-boardinfo.c
i2c-core-acpi.c	i2c: acpi: fix resource leak in reconfiguration device addition	2021-10-13 10:04:29 +02:00
i2c-core-base.c	i2c: core: Disable client irq on reboot/shutdown	2021-07-20 16:05:46 +02:00
i2c-core-of.c
i2c-core-slave.c	i2c: slave: add sanity check when unregistering	2020-07-28 18:37:17 +02:00
i2c-core-smbus.c	i2c: core: check returned size of emulated smbus block read	2020-06-26 10:18:35 +02:00
i2c-core.h	i2c: acpi: Remove dead code, i.e. i2c_acpi_match_device()	2020-08-25 09:22:09 +02:00
i2c-dev.c	i2c: validate user data in compat ioctl	2022-01-05 12:40:32 +01:00
i2c-mux.c
i2c-slave-eeprom.c	i2c: busses: Use fallthrough pseudo-keyword	2020-07-23 22:04:08 +02:00
i2c-slave-testunit.c	i2c: add slave testunit driver	2020-09-21 11:02:17 +02:00
i2c-smbus.c	i2c: smbus: add core function handling SMBus host-notify	2020-09-09 10:38:28 +02:00
i2c-stub.c
Kconfig	i2c: add slave testunit driver	2020-09-21 11:02:17 +02:00
Makefile	i2c: add slave testunit driver	2020-09-21 11:02:17 +02:00