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* treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE ↵Thomas Gleixner2022-06-101-4/+1
| | | | | | | | | | | | | | | | | | | (part 2) Based on the normalized pattern: this file is licensed under the terms of the gnu general public license version 2 this program is licensed as is without any warranty of any kind whether express or implied extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* clk: mmp: Adjust checks for NULL pointersMarkus Elfring2017-11-141-3/+3
| | | | | | | | | | | | The script “checkpatch.pl” pointed information out like the following: Comparison to NULL could be written !... Thus fix the affected source code places. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: mmp: add missing header dependenciesBaoyou Xie2016-09-141-0/+1
| | | | | | | | | | | | We get 1 warning when building kernel with W=1: drivers/clk/mmp/clk-mmp2.c:75:13: warning: no previous prototype for 'mmp2_clk_init' [-Wmissing-prototypes] In fact, this function is declared in linux/clk/mmp.h, so this patch add missing header dependencies. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: mmp: Remove CLK_IS_ROOTStephen Boyd2016-04-161-9/+5
| | | | | | | This flag is a no-op now. Remove usage of the flag. Cc: Chao Xie <chao.xie@marvell.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: mmp: stop using platform headersArnd Bergmann2015-12-011-6/+6
| | | | | | | | | | | | | | | | | | | | | | | The mmp clock drivers currently hardcode the physical addresses for the clock registers. This is generally a bad idea, and it also gets in the way of multiplatform builds, which make the platform header files inaccessible to device drivers. To work around the header file problem, this patch changes the calling convention so the three mmp clock drivers get initialized with the base addresses as arguments from the platform code. It would still be useful to have a larger rework of the clock drivers, with DT integration to let the clocks actually be probed automatically, and the base addresses passed as DT properties. I am unsure if anyone is still interested in the mmp platform, so it is possible that this won't happen. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Mike Turquette <mturquette@linaro.org> Cc: Chao Xie <chao.xie@marvell.com> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
* clk: mmp: Fix the wrong factor table for uart PLLChao Xie2015-06-041-3/+1
| | | | | | | | | | The suggested value in the mmp2 manual is wrong. There are only 13 bits for numerator, but some suggested value has 14 bits. Fix the factor tabled and remove the unused items. Signed-off-by: Chao Xie <chao.xie@marvell.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* clk: mmp: add spin lock for clk-fracChao Xie2014-11-131-1/+1
| | | | | | | | | | | The register used by clk-frac may be shared with other clocks. So it needs to use spin lock to protect the register access. Signed-off-by: Chao Xie <chao.xie@marvell.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
* clk: mmp: add prefix "mmp" for structures defined for clk-fracChao Xie2014-11-131-2/+2
| | | | | | | | | | | The structures defined for clk-frac will be used out side of clk-frac.c. To avoid conflicts, add prefix "mmp" for these structures' name. Signed-off-by: Chao Xie <chao.xie@marvell.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
* clk: add CLK_SET_RATE_NO_REPARENT flagJames Hogan2013-08-191-13/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a CLK_SET_RATE_NO_REPARENT clock flag, which will prevent muxes being reparented during clk_set_rate. To avoid breaking existing platforms, all callers of clk_register_mux() are adjusted to pass the new flag. Platform maintainers are encouraged to remove the flag if they wish to allow mux reparenting on set_rate. Signed-off-by: James Hogan <james.hogan@imgtec.com> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Mike Turquette <mturquette@linaro.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Haojian Zhuang <haojian.zhuang@linaro.org> Cc: Chao Xie <xiechao.mail@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "Emilio López" <emilio@elopez.com.ar> Cc: Gregory CLEMENT <gregory.clement@free-electrons.com> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Prashant Gaikwad <pgaikwad@nvidia.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Peter De Schrijver <pdeschrijver@nvidia.com> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Andrew Chew <achew@nvidia.com> Cc: Doug Anderson <dianders@chromium.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Paul Walmsley <pwalmsley@nvidia.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Thomas Abraham <thomas.abraham@linaro.org> Cc: Tomasz Figa <t.figa@samsung.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: spear-devel@list.st.com Cc: linux-tegra@vger.kernel.org Tested-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Stephen Warren <swarren@nvidia.com> [tegra] Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> [sunxi] Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com> [Zynq] Signed-off-by: Mike Turquette <mturquette@linaro.org>
* ARM: pxa: remove cpu_is_xxx in gpio driverHaojian Zhuang2013-04-111-1/+1
| | | | | | | | Avoid to use cpu_is_xxx() in pxa gpio driver. Use platform_device_id to identify the difference. Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* clk: mmp: add clock definition for mmp2Chao Xie2012-08-281-0/+449
Initialize the clocks for mmp2 Signed-off-by: Chao Xie <xiechao.mail@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>