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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-24 06:56:08 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-24 06:56:08 +0400 |
commit | 7e21774db5cc9cf8fe93a64a2f0c6cf47db8ab24 (patch) | |
tree | 460812792bc3b23789a83968b7bad840cc3eb047 /drivers/clk/clk-fixed-rate.c | |
parent | 0ba3307a8ec35252f7b1e222e32889a6f3d9ceb3 (diff) | |
parent | 2e84d75116c17c2034e917b411250d2d11755435 (diff) | |
download | linux-7e21774db5cc9cf8fe93a64a2f0c6cf47db8ab24.tar.xz |
Merge tag 'clk-for-linus-3.14-part1' of git://git.linaro.org/people/mike.turquette/linux
Pull clk framework changes from Mike Turquette:
"The first half of the clk framework pull request is made up almost
entirely of new platform/driver support. There are some conversions
of existing drivers to the common-clock Device Tree binding, and a few
non-critical fixes to the framework.
Due to an entirely unnecessary cyclical dependency with the arm-soc
tree this pull request is broken into two pieces. The second piece
will be sent out after arm-soc sends you the pull request that merged
in core support for the HiSilicon 3620 platform. That same pull
request from arm-soc depends on this pull request to merge in those
HiSilicon bits without causing build failures"
[ Just did the ARM SoC merges, so getting ready for the second clk tree
pull request - Linus ]
* tag 'clk-for-linus-3.14-part1' of git://git.linaro.org/people/mike.turquette/linux: (97 commits)
devicetree: bindings: Document qcom,mmcc
devicetree: bindings: Document qcom,gcc
clk: qcom: Add support for MSM8660's global clock controller (GCC)
clk: qcom: Add support for MSM8974's multimedia clock controller (MMCC)
clk: qcom: Add support for MSM8974's global clock controller (GCC)
clk: qcom: Add support for MSM8960's multimedia clock controller (MMCC)
clk: qcom: Add support for MSM8960's global clock controller (GCC)
clk: qcom: Add reset controller support
clk: qcom: Add support for branches/gate clocks
clk: qcom: Add support for root clock generators (RCGs)
clk: qcom: Add support for phase locked loops (PLLs)
clk: qcom: Add a regmap type clock struct
clk: Add set_rate_and_parent() op
reset: Silence warning in reset-controller.h
clk: sirf: re-arch to make the codes support both prima2 and atlas6
clk: composite: pass mux_hw into determine_rate
clk: shmobile: Fix MSTP clock array initialization
clk: shmobile: Fix MSTP clock index
ARM: dts: Add clock provider specific properties to max77686 node
clk: max77686: Register OF clock provider
...
Diffstat (limited to 'drivers/clk/clk-fixed-rate.c')
-rw-r--r-- | drivers/clk/clk-fixed-rate.c | 43 |
1 files changed, 37 insertions, 6 deletions
diff --git a/drivers/clk/clk-fixed-rate.c b/drivers/clk/clk-fixed-rate.c index 1ed591ab8b1d..0fc56ab6e844 100644 --- a/drivers/clk/clk-fixed-rate.c +++ b/drivers/clk/clk-fixed-rate.c @@ -34,22 +34,31 @@ static unsigned long clk_fixed_rate_recalc_rate(struct clk_hw *hw, return to_clk_fixed_rate(hw)->fixed_rate; } +static unsigned long clk_fixed_rate_recalc_accuracy(struct clk_hw *hw, + unsigned long parent_accuracy) +{ + return to_clk_fixed_rate(hw)->fixed_accuracy; +} + const struct clk_ops clk_fixed_rate_ops = { .recalc_rate = clk_fixed_rate_recalc_rate, + .recalc_accuracy = clk_fixed_rate_recalc_accuracy, }; EXPORT_SYMBOL_GPL(clk_fixed_rate_ops); /** - * clk_register_fixed_rate - register fixed-rate clock with the clock framework + * clk_register_fixed_rate_with_accuracy - register fixed-rate clock with the + * clock framework * @dev: device that is registering this clock * @name: name of this clock * @parent_name: name of clock's parent * @flags: framework-specific flags * @fixed_rate: non-adjustable clock rate + * @fixed_accuracy: non-adjustable clock rate */ -struct clk *clk_register_fixed_rate(struct device *dev, const char *name, - const char *parent_name, unsigned long flags, - unsigned long fixed_rate) +struct clk *clk_register_fixed_rate_with_accuracy(struct device *dev, + const char *name, const char *parent_name, unsigned long flags, + unsigned long fixed_rate, unsigned long fixed_accuracy) { struct clk_fixed_rate *fixed; struct clk *clk; @@ -70,16 +79,33 @@ struct clk *clk_register_fixed_rate(struct device *dev, const char *name, /* struct clk_fixed_rate assignments */ fixed->fixed_rate = fixed_rate; + fixed->fixed_accuracy = fixed_accuracy; fixed->hw.init = &init; /* register the clock */ clk = clk_register(dev, &fixed->hw); - if (IS_ERR(clk)) kfree(fixed); return clk; } +EXPORT_SYMBOL_GPL(clk_register_fixed_rate_with_accuracy); + +/** + * clk_register_fixed_rate - register fixed-rate clock with the clock framework + * @dev: device that is registering this clock + * @name: name of this clock + * @parent_name: name of clock's parent + * @flags: framework-specific flags + * @fixed_rate: non-adjustable clock rate + */ +struct clk *clk_register_fixed_rate(struct device *dev, const char *name, + const char *parent_name, unsigned long flags, + unsigned long fixed_rate) +{ + return clk_register_fixed_rate_with_accuracy(dev, name, parent_name, + flags, fixed_rate, 0); +} EXPORT_SYMBOL_GPL(clk_register_fixed_rate); #ifdef CONFIG_OF @@ -91,13 +117,18 @@ void of_fixed_clk_setup(struct device_node *node) struct clk *clk; const char *clk_name = node->name; u32 rate; + u32 accuracy = 0; if (of_property_read_u32(node, "clock-frequency", &rate)) return; + of_property_read_u32(node, "clock-accuracy", &accuracy); + of_property_read_string(node, "clock-output-names", &clk_name); - clk = clk_register_fixed_rate(NULL, clk_name, NULL, CLK_IS_ROOT, rate); + clk = clk_register_fixed_rate_with_accuracy(NULL, clk_name, NULL, + CLK_IS_ROOT, rate, + accuracy); if (!IS_ERR(clk)) of_clk_add_provider(node, of_clk_src_simple_get, clk); } |