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path: root/drivers/clk/clk-fixed-factor.c
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2016-08-15clk: fixed-factor: Remove export symbol on setup functionStephen Boyd1-1/+0
This function is marked __init, so it can't possibly need to be exported to modules. Remove the marking. Cc: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-08-12clk: fixed-factor: Convert into a module platform driverRicardo Ribalda Delgado1-8/+65
Adds support for fixed-factor clock providers which have not been enabled via of_clk_init(). This is required by Device trees overlays that introduce clocks providers. Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> [sboyd@codeaurora.org: Make new private function static, don't check clk for NULL when unregistering in driver remove] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-07-01clk: fixed-factor: Allow for a few clocks to change the parent rateMaxime Ripard1-1/+10
The only way for a fixed factor clock to change its rate would be to change its parent rate. Since passing blindly CLK_SET_RATE_PARENT might break a lot of platforms that were relying on the fact that the parent rate wouldn't change, introduce a compatible-based whitelist that will allow clocks to opt-in that flag. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-04-19clk: fixed-factor: Add hw based registration APIsStephen Boyd1-7/+35
Add registration APIs in the clk fixed-factor code to return struct clk_hw pointers instead of struct clk pointers. This way we hide the struct clk pointer from providers unless they need to use consumer facing APIs. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-01-29clk: add clk_unregister_fixed_factor()Masahiro Yamada1-0/+13
Allow to unregister fixed factor clock. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-01-29clk: move the common clock's to_clk_*(_hw) macros to clk-provider.hGeliang Tang1-2/+0
to_clk_*(_hw) macros have been repeatedly defined in many places. This patch moves all the to_clk_*(_hw) definitions in the common clock framework to public header clk-provider.h, and drop the local definitions. Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-08-24clk: Convert basic types to clk_hw based provider APIsStephen Boyd1-2/+1
We're removing struct clk from the clk provider API, so switch this code to using the clk_hw based provider APIs. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-08-24clk: Convert __clk_get_flags() to clk_hw_get_flags()Stephen Boyd1-1/+1
Mostly converted with the following snippet: @@ struct clk_hw *E; @@ -__clk_get_flags(E->clk) +clk_hw_get_flags(E) Acked-by: Tero Kristo <t-kristo@ti.com> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: Daniel Thompson <daniel.thompson@linaro.org> Cc: Coquelin <mcoquelin.stm32@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-06-10clk: fixed: Add comment to clk_fixed_set_rateDaniel Thompson1-1/+7
Currently it is not made explicit why clk_fixed_set_rate() can ignore its arguments and unconditionally return success. Add a comment to explain this. We also mark the clk_ops table const since it should never be modified at runtime. Suggested-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-14clk: basic-types: Remove useless allocation failure printksStephen Boyd1-3/+1
Printing an error on kmalloc() failures is unnecessary. Remove the print and use *ptr in sizeof() for future-proof code. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2013-11-15Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina: "Usual earth-shaking, news-breaking, rocket science pile from trivial.git" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (23 commits) doc: usb: Fix typo in Documentation/usb/gadget_configs.txt doc: add missing files to timers/00-INDEX timekeeping: Fix some trivial typos in comments mm: Fix some trivial typos in comments irq: Fix some trivial typos in comments NUMA: fix typos in Kconfig help text mm: update 00-INDEX doc: Documentation/DMA-attributes.txt fix typo DRM: comment: `halve' -> `half' Docs: Kconfig: `devlopers' -> `developers' doc: typo on word accounting in kprobes.c in mutliple architectures treewide: fix "usefull" typo treewide: fix "distingush" typo mm/Kconfig: Grammar s/an/a/ kexec: Typo s/the/then/ Documentation/kvm: Update cpuid documentation for steal time and pv eoi treewide: Fix common typo in "identify" __page_to_pfn: Fix typo in comment Correct some typos for word frequency clk: fixed-factor: Fix a trivial typo ...
2013-10-14clk: fixed-factor: Fix a trivial typoEzequiel Garcia1-1/+1
Just a trivial print message typo fix. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-08-16clk: export fixed-factor, gate & mux registrationMike Turquette1-0/+2
These registration calls may be used by loadable modules. Export them. Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-04-12clk: add device tree fixed-factor-clock binding supportGregory CLEMENT1-0/+36
Add support for DT "fixed-factor-clock" binding to the common fixed factor clock support. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Tested-by: Christian Ruppert <christian.ruppert@abilis.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-01-11clk: fixed-factor: round_rate should use do_divHaojian Zhuang1-1/+4
clk->rate = parent->rate / div * mult The formula is OK. But it may overflow while we do operate with unsigned long. So use do_div instead. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mike Turquette <mturquette@linaro.org> [mturquette@linaro.org: improved $SUBJECT]
2012-07-11clk: Add CLK_IS_BASIC flag to identify basic clocksRajendra Nayak1-1/+1
Most platforms end up using a mix of basic clock types and some which use clk_hw_foo struct for filling in custom platform information when the clocks don't fit into basic types supported. In platform code, its useful to know if a clock is using a basic type or clk_hw_foo, which helps platforms know if they can safely use to_clk_hw_foo to derive the clk_hw_foo pointer from clk_hw. Mark all basic clocks with a CLK_IS_BASIC flag. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-05-08clk: add a fixed factor clockSascha Hauer1-0/+95
Having fixed factors/dividers in hardware is a common pattern, so add a basic clock type doing this. It basically describes a fixed factor clock using a nominator and a denominator. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Viresh Kumar <viresh.kumar@st.com> Tested-by: Shawn Guo <shawn.guo@linaro.org> [mturquette@linaro.org: constify parent_names in static init macro] [mturquette@linaro.org: copy/paste bug from mux in static init macro] [mturquette@linaro.org: fix error handling in clk_register_fixed_factor] [mturquette@linaro.org: improve division accuracy; thanks to Saravana] Signed-off-by: Mike Turquette <mturquette@linaro.org>
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