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The devm_clk_get_enabled() helpers:
- call devm_clk_get()
- call clk_prepare_enable() and register what is needed in order to
call clk_disable_unprepare() when needed, as a managed resource.
This simplifies the code and avoids the calls to clk_disable_unprepare().
Signed-off-by: Huan Yang <link@vivo.com>
Link: https://lore.kernel.org/r/20240820094603.103598-1-link@vivo.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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platform_driver struct
Commit ca7b72b5a5f2 ("clocksource: Add driver for the Ingenic JZ47xx OST")
adds the struct platform_driver ingenic_ost_driver, with the definition of
pm functions under the non-existing config PM_SUSPEND, which means the
intended pm functions were never actually included in any build.
As the only callbacks are .suspend_noirq and .resume_noirq, we can assume
that it is intended to be CONFIG_PM_SLEEP.
Since commit 1a3c7bb08826 ("PM: core: Add new *_PM_OPS macros, deprecate
old ones"), the default pattern for platform_driver definitions
conditional for CONFIG_PM_SLEEP is to use pm_sleep_ptr().
As __maybe_unused annotations on the dev_pm_ops structure and its callbacks
are not needed anymore, remove these as well.
Suggested-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20221123083159.22821-1-lukas.bulwahn@gmail.com
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In case of error, the function device_node_to_regmap() returns
ERR_PTR() and never returns NULL. The NULL test in the return
value check should be replaced with IS_ERR().
Fixes: ca7b72b5a5f2 ("clocksource: Add driver for the Ingenic JZ47xx OST")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210308123031.2285083-1-weiyongjun1@huawei.com
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The OST in the JZ4760B SoC works exactly the same as in the JZ4770. But
since the JZ4760B is older, its Device Tree string does not fall back to
the JZ4770 one; so add support for the JZ4760B compatible string here.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210308212302.10288-3-paul@crapouillou.net
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OST is the OS Timer, a 64-bit timer/counter with buffered reading.
SoCs before the JZ4770 had (if any) a 32-bit OST; the JZ4770 and
JZ4780 have a 64-bit OST.
This driver will register both a clocksource and a sched_clock to the
system.
Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Mathieu Malaterre <malat@debian.org>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200212180408.30872-1-paul@crapouillou.net
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