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path: root/drivers/clk/qcom/common.c
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2015-08-24clk: Replace __clk_get_num_parents with clk_hw_get_num_parents()Stephen Boyd
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>
2015-07-28clk: qcom: Give clk-qcom.ko module a GPLv2 licenseStephen Boyd
The missing license causes the clk-qcom.ko module to taint the kernel. Add the appropriate license to avoid taint. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-03-23clk: qcom: Introduce parent_map tablesGeorgi Djakov
In the current parent mapping code, we can get duplicate or inconsistent indexes, which leads to discrepancy between the number of elements in the array and the number of parents. Until now, this was solved with some reordering but this is not always possible. This patch introduces index tables that are used to define the relations between the PLL source and the hardware mux configuration value. To accomplish this, here we do the following: - Define a parent_map struct to map the relations between PLL source index and register configuration value. - Add a qcom_find_src_index() function for finding the index of a clock matching the specific PLL configuration. - Update the {set,get}_parent RCG functions use the newly introduced parent_map struct. - Convert all existing drivers to the new parent_map tables. Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-09-22clk: qcom: Consolidate frequency finding logicStephen Boyd
There are two find_freq() functions in clk-rcg.c and clk-rcg2.c that are almost exactly the same. Consolidate them into one function to save on some code space. Cc: Mike Turquette <mturquette@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-07-15clk: qcom: Fix PLL rate configurationsStephen Boyd
Sometimes we need to program PLLs with a fixed rate configuration during driver probe. Doing this after we register the PLLs with the clock framework causes the common clock framework to assume the rate of the PLLs are 0. This causes all sorts of problems for rate recalculations because the common clock framework caches the rate once at registration time unless a flag is set to always recalculate the rates. Split the qcom_cc_probe() function into two pieces, map and everything else, so that drivers which need to configure some PLL rates or otherwise twiddle bits in the clock controller can do so before registering clocks. This allows us to properly detect the rates of PLLs that are programmed at boot. Fixes: 49fc825f0cc2 "clk: qcom: Consolidate common probe code" Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-05-29clk: qcom: Return error pointers for unimplemented clocksStephen Boyd
Not all clocks are implemented but client drivers can still request them. Currently we will return a NULL pointer to them if the clock isn't implemented in software but NULL pointers are valid clock pointers. Return an error pointer so that driver's don't proceed without a clock they may actually need. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2014-04-30clk: qcom: Consolidate common probe codeStephen Boyd
Most of the probe code is the same between all the different clock controllers. Consolidate the code into a common.c file. This makes changes to the common probe parts easier and reduces chances for bugs. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>