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Although unbinding a driver requires root privileges but it still might
be used theoretically in certain attacks (by triggering NULL pointer
exception or memory corruption if driver does not provide proper remove
callbacks or core does not handle it).
Samsung clock drivers are essential for system operation so their
removal is not expected. More over, the Exynos3250 ISP clock driver does
not implement remove() driver callback and it is not buildable as
modules.
Suppress the unbind interface for Exynos3250 ISP and S3C2410 DCLK clock
drivers.
Suggested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
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Remove unneeded variable used to store return value.
Signed-off-by: Prasanna Karthik <mkarthi3@visteon.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
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Mostly converted with the following semantic patch:
@@
struct clk_hw *E;
@@
-__clk_get_num_parents(E->clk)
+clk_hw_get_num_parents(E)
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Chao Xie <chao.xie@marvell.com>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Cc: Tomasz Figa <tomasz.figa@gmail.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: "Emilio López" <emilio@elopez.com.ar>
Acked-by: Tero Kristo <t-kristo@ti.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Only include clk.h in files that are
using it. The clkdev.h header isn't always used either, so remove
it and add in slab.h where files were relying on it to include
slab for them.
Cc: Chanwoo Choi <cw00.choi@samsung.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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The platform_device_id is not modified by the driver and core uses it as
const.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Staticize symbols not exported and not used outside of file.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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There is no need to init .owner field.
Based on the patch from Peter Griffin <peter.griffin@linaro.org>
"mmc: remove .owner field for drivers using module_platform_driver"
This patch removes the superflous .owner field for drivers which
use the module_platform_driver API, as this is overriden in
platform_driver_register anyway."
Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
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"clk: samsung: clk-s3c2410-dlck: do not use PNAME macro as it declares
__initdata" had a typo in it which caused build failure. Trivial fix.
Signed-off-by: Olof Johansson <olof@lixom.net>
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The originally used PNAME macro from the core samsung clock infrastructure
declares the created array as initdata, creating section mismatch warnings
in the dclk driver.
Thus declare them directly, removing these warning.
Reported-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
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This adds a driver for controlling the external clock outputs of
s3c24xx architectures including the dclk muxes and dividers.
The driver at the moment only supports the legacy non-dt boards using these
clock outputs. The clock-output control itself is part of the system-controller
mainly controlled by the pinctrl drivers. So it should most likely be
integrated there for dt platforms.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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