aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/clk
AgeCommit message (Collapse)AuthorFilesLines
2015-05-13clk: axm55xx: Use %zu in pr_info for size_tAlexander Sverdlin1-1/+1
Fix the following compiler warning: drivers/clk/clk-axm5516.c: In function 'axmclk_probe': drivers/clk/clk-axm5516.c:559:2: warning: format '%u' expects argument of type 'unsigned int', but argument 2 has type 'size_t' [-Wformat=] pr_info("axmclk: supporting %u clocks\n", num_clks); ^ Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-13clk: asm9260: Fix of_io_request_and_map error checkMaxime Ripard1-1/+1
of_io_request_and map returns an error pointer, but the current code assumes that on error the returned pointer will be NULL. Obviously, that makes the check completely useless. Change the test to actually check for the proper error code. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: linux-clk@vger.kernel.org Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-13clk: si5351: fix .recalc_rate for multisynth 6-7Sergej Sawazki1-3/+2
MS6 and MS7 do not have the MSx_P3 field. Do the 'params.p3 == 0' check for MS0-M5 only. See [AN619, p. 6] for details. Referenced document: [AN619] Manually Generating an Si5351 Register Map, Rev. 0.4 Signed-off-by: Sergej Sawazki <ce3a@gmx.de> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-05-13clk: si5351: fix .round_rate for multisynth 6-7Sergej Sawazki1-4/+17
The divider calculation for multisynth 6 and 7 differs from the calculation for multisynth 0-5. For MS6 and MS7, set MSx_P1 directly, MSx_P1=divide value [AN619, p. 6]. Referenced document: [AN619] Manually Generating an Si5351 Register Map, Rev. 0.4 Signed-off-by: Sergej Sawazki <ce3a@gmx.de> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-05-13clk: tegra: Fix hda2codec_2x clock name for Tegra30Marcel Ziswiler1-1/+1
The HDA to codec clock is named hda2codec_2x, so use the proper name in the clock table. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-05-13clk: tegra: EMC clock driver depends on EMC driverThierry Reding4-1/+15
The EMC clock driver uses symbols exported by the EMC driver, so it needs the corresponding dependency to avoid build breakage. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-05-13clk: tegra: Have EMC clock implement determine_rate()Tomeu Vizoso1-12/+23
As opposed to round_rate(), determine_rate() can take rate constraints into account when choosing the best rate. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-05-13clk: tegra: Set the EMC clock as the parent of the MC clockTomeu Vizoso1-12/+1
On Tegra124, as we now have a proper driver for the EMC. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-05-13clk: tegra: Add EMC clock driverMikko Perttunen4-2/+535
The driver is currently only tested on Tegra124 Jetson TK1, but should work with other Tegra124 boards, provided that correct EMC tables are provided through the device tree. Older chip models have differing timing change sequences, so they are not currently supported. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> [treding@nvidia.com: use more consistent function names] Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-05-13clk: tegra: Remove old Tegra124 EMC clockMikko Perttunen1-1/+0
This clock has never been able to do anything. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-05-13clk: Expose clk_hw_reparent() to providersTomeu Vizoso1-0/+8
To be used by clock implementations for switching to a new parent during rate change. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-05-12clk: pxa: add missing pxa27x clocks for Irda and sa1100-rtcRobert Jarzmik1-0/+29
Add 2 clocks which were erronously forgotten by the clock framework port, namely : - sa1100-rtc - irda for pxa2xx-ir:UARTCLK Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Michael Turquette <mturquette@linaro.org>
2015-05-12ARM: pxa: change clocks init sequenceRobert Jarzmik1-2/+1
Since pxa clocks were ported to the clock framework, an ordering issue appears between clocks and clocksource initialization. As a consequence, the pxa timer clock cannot be acquired in pxa_timer, and is disabled by clock framework because it is "unused". The ordering issue is that in the kernel boot sequence : start_kernel() ... time_init() -> pxa_timer() -> here the clocksource is initialized ... rest_init() kernel_init() initcalls -> here the clocks are initialized In the current sequence, the clocks are initialized way after pxa_timer, which cannot acquire the OSTIMER0 clock. To solve this issue, the clocks initialization is moved to pxa_timer(), so that clocks are initialized before clocksource for non device-tree. For device-tree, the standard arm time_init() will take care of the ordering. Reviewed-by: Michael Turquette <mturquette@linaro.org> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2015-05-08Merge branch 'clk-fixes' into clk-nextMichael Turquette4-25/+53
2015-05-08clk: si5351: Do not pass struct clk in platform_dataSebastian Hesselbarth1-18/+45
When registering clk-si5351 by platform_data, we should not pass struct clk for the reference clocks. Drop struct clk from platform_data and rework the driver to use devm_clk_get of named clock references. While at it, check for at least one valid input clock and properly prepare/ enable valid reference clocks. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Reported-by: Michael Welling <mwelling@ieee.org> Reported-by: Jean-Francois Moine <moinejf@free.fr> Reported-by: Russell King <rmk+linux@arm.linux.org.uk> Tested-by: Michael Welling <mwelling@ieee.org> Tested-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2015-05-07Merge tag 'clk-samsung-fixes-4.1-2' of git://linuxtv.org/snawrocki/samsung into clk-fixesMichael Turquette3-7/+8
clk/samsung fixes for 4.1 - missing CONFIG_ARCH_EXYNOS5433 -> CONFIG_ARCH_EXYNOS substitution to actually enable clk-exynos5433.c compilation, - fixes of exynos5433 clk tree definitions: register offsetts, parent clocks, PLL coefficients, - fix for exynos5420 system sleep regression introduced in 3.19.
2015-05-07clk: Add some more lockdep assertionsStephen Boyd1-0/+8
We don't check to make sure the enable_lock is held across enable/disable and we don't check if the prepare_lock is held across prepare/unprepare. Add some asserts to catch any future locking problems. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-07Merge branch 'clk-fixes' into clk-nextStephen Boyd1-0/+8
2015-05-07clk: ux500: ape[ate|trace]clk are scaleableLinus Walleij2-5/+6
The APEATCLK and APETRACECLK are actually scaleable so register them as scaleable clocks. Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-07clk: add newline character after dumping all clocksFelipe Balbi1-1/+1
clk_dump() will dump data about all clocks in JSON format, but it misses a newline character at the end of the JSON string. This patch adds that missing newline character. Signed-off-by: Felipe Balbi <balbi@ti.com> [sboyd@codeaurora.org: Squelch checkpatch with seq_puts()] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-06clk: add missing lock when call clk_core_enable in clk_set_parentDong Aisheng1-0/+8
Before commit 035a61c314eb ("clk: Make clk API return per-user struct clk instances") we acquired the enable_lock in __clk_set_parent_{before,after}() by means of calling clk_enable(). After commit 035a61c314eb we use clk_core_enable() in place of the clk_enable(), and clk_core_enable() doesn't acquire the enable_lock. This opens up a race condition between clk_set_parent() and clk_enable(). Fix it. Fixes: 035a61c314eb ("clk: Make clk API return per-user struct clk instances") Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Dong Aisheng <aisheng.dong@freescale.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-06clk: s2mps11: use clkdev_create()Russell King1-3/+1
clkdev_create() is a shorter way to write clkdev_alloc() followed by clkdev_add(). Use this instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-05-06clkdev: add clkdev_create() helperRussell King1-12/+41
Add a helper to allocate and add a clk_lookup structure. This can not only be used in several places in clkdev.c to simplify the code, but more importantly, can be used by callers of the clkdev code to simplify their clkdev creation and registration. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-05-06clkdev: const-ify connection id to clk_add_alias()Russell King1-3/+3
The connection id is only passed to clk_get() which is already const. Const-ify this argument too. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-05-06clkdev: drop __init from clkdev_add_table()Russell King1-1/+1
We want to be able to call clkdev_add_table() from non-init code, so we need to drop the __init marker from it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-05-06clkdev: use clk_hw internallyRussell King1-8/+16
clk_add_alias() calls clk_get() followed by clk_put() but in between those two calls it saves away the struct clk pointer to a clk_lookup structure. This leaves the 'clk' member of the clk_lookup pointing at freed memory on configurations where CONFIG_COMMON_CLK=y. This is a problem because clk_get_sys() will eventually try to dereference the freed pointer by calling __clk_get_hw() on it. Fix this by saving away the struct clk_hw pointer instead of the struct clk pointer so that when we try to create a per-user struct clk in clk_get_sys() we don't dereference a junk pointer. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-05-05clk: s3c2410: Constify platform_device_idKrzysztof Kozlowski1-1/+1
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>
2015-05-05clk: s3c2410: Staticize local symbolsKrzysztof Kozlowski1-2/+2
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>
2015-05-05clk: ls1x: Fix duplicate const for parent namesKrzysztof Kozlowski1-3/+3
Replace duplicated const keyword with proper array of const pointers to const strings. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05clk: sirf: Constify parent names in clock init dataKrzysztof Kozlowski1-6/+6
The array of parent names can be made as array of const pointers to const strings. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05clk: cdce706: Constify parent names in clock init dataKrzysztof Kozlowski1-2/+2
The array of parent names can be made as array of const pointers to const strings. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05clk: exynos: Staticize file-scope declarationsKrzysztof Kozlowski2-42/+42
Add missing static to local (file-scope only) symbols. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05clk: rockchip: Staticize file-scope declarationsKrzysztof Kozlowski2-2/+2
Add missing static to local (file-scope only) symbols. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05clk: mediatek: Add basic clocks for Mediatek MT8173.James Liao2-0/+831
This patch adds basic clocks for MT8173, including TOPCKGEN, PLLs, INFRA and PERI clocks. Signed-off-by: James Liao <jamesjj.liao@mediatek.com> Signed-off-by: Henry Chen <henryc.chen@mediatek.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05clk: mediatek: Add basic clocks for Mediatek MT8135.James Liao2-0/+645
This patch adds basic clocks for MT8135, including TOPCKGEN, PLLs, INFRA and PERI clocks. Signed-off-by: James Liao <jamesjj.liao@mediatek.com> Signed-off-by: Henry Chen <henryc.chen@mediatek.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05clk: mediatek: Add reset controller supportSascha Hauer3-0/+108
The pericfg and infracfg units also provide reset lines to several other SoC internal units. This adds a function which can be called from the pericfg and infracfg initialization functions which will register the reset controller using reset_controller_register. The reset controller will provide support for resetting the units connected to the pericfg and infracfg controller. The units resetted by this controller can use the standard reset device tree binding to gain access to the reset lines. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05clk: mediatek: Add initial common clock support for Mediatek SoCs.James Liao7-0/+899
This patch adds common clock support for Mediatek SoCs, including plls, muxes and clock gates. Signed-off-by: James Liao <jamesjj.liao@mediatek.com> Signed-off-by: Henry Chen <henryc.chen@mediatek.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> [sboyd@codeaurora.org: Squelch checkpatch warning in clk-mtk.h] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05clk: make strings in parent name arrays constSascha Hauer2-3/+5
The clk functions and structs declare the parent_name arrays as 'const char **parent_names' which means the parent name strings are const, but the array itself is not. Use 'const char * const * parent_names' instead which also makes the array const. This allows us to put the parent_name arrays into the __initconst section. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> [sboyd@codeaurora.org: Squelch 80-character checkpatch warnings] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-05clk: sunxi: Fix of_io_request_and_map error checkMaxime Ripard2-5/+7
of_io_request_and map returns an error pointer, but the current code assumes that on error the returned pointer will be NULL. Obviously, that makes the check completely useless. Change the test to actually check for the proper error code. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Mike Turquette <mturquette@linaro.org> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: linux-clk@vger.kernel.org
2015-05-05clk: exynos5420: Restore GATE_BUS_TOP on suspendJavier Martinez Canillas1-0/+1
Commit ae43b3289186 ("ARM: 8202/1: dmaengine: pl330: Add runtime Power Management support v12") added pm support for the pl330 dma driver but it makes the clock for the Exynos5420 MDMA0 DMA controller to be gated during suspend and this in turn makes its parent clock aclk266_g2d to be gated. But the clock needs to be ungated prior suspend to allow the system to be suspend and resumed correctly. Add GATE_BUS_TOP register to the list of registers to be restored when the system enters into a suspend state so aclk266_g2d will be ungated. Thanks to Abhilash Kesavan for figuring out that this was the issue. Fixes: ae43b32 ("ARM: 8202/1: dmaengine: pl330: Add runtime Power Management support v12") Cc: stable@vger.kernel.org # 3.19+ Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Kevin Hilman <khilman@linaro.org> Tested-by: Abhilash Kesavan <a.kesavan@samsung.com> Acked-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2015-05-01Merge branch 'clk-fixes' into clk-nextStephen Boyd1-2/+2
2015-05-01clk: at91: Constify irq_domain_opsKrzysztof Kozlowski1-1/+1
The irq_domain_ops are not modified by the driver and the irqdomain core code accepts pointer to a const data. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-05-01clk: Fix JSON output in debugfsStefan Wahren1-2/+3
key/value pairs in a JSON object must be separated by a comma. After adding the properties "accuracy" and "phase" the JSON output of /sys/kernel/debug/clk/clk_dump is invalid. So add the missing commas to fix it. Fixes: 5279fc402ae5 ("clk: add clk accuracy retrieval support") Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> [sboyd@codeaurora.org: Added comment in function] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30clk: qcom: Fix MSM8916 gfx3d_clk_src configurationGeorgi Djakov1-1/+1
The gfx3d_clk_src parents configuration is incorrect. Fix it. Fixes: 3966fab8b6ab "clk: qcom: Add MSM8916 Global Clock Controller support" Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30clk: qcom: Fix MSM8916 venus divider valueGeorgi Djakov1-1/+1
One of the video codec clock frequencies has incorrect divider value. Fix it. Fixes: 3966fab8b6ab "clk: qcom: Add MSM8916 Global Clock Controller support" Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30clk: Update some comments to reflect realityStephen Boyd1-33/+18
The debugfs clk directory no longer expresses a clk tree. Update the comments around that apporiately. Also drop comments about prepare locks needing to be held as we have the proper annotations with lockdep_assert_held(). Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30clk: Remove forward declared function prototypesStephen Boyd1-418/+393
Move the code around so that we don't need to declare function prototypes at the start of the file. Simplify clk_core_is_prepared() and clk_core_is_enabled() too to make the diff easier to read. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30clk: Remove impossible if condition in clk_core_get_phase()Stephen Boyd1-5/+1
This condition can't ever be true because this function is static and it's always called with a non-NULL pointer. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30clk: Drop unnecessary OOM printsStephen Boyd1-5/+0
We don't need to print error messages when allocations fail. We'll get a nice backtrace in such situations anyway. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-30clk: Squash __clk_{enable,disable}() into callersDong Aisheng1-18/+5
These functions are only used in one place. Let's squash them into their respective callers to save some lines. Signed-off-by: Dong Aisheng <aisheng.dong@freescale.com> [sboyd@codeaurora.org: Redo commit text, add NULL check in clk_enable()] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Copyright © 1996 – 2026 Jason A. Donenfeld. All Rights Reverse Engineered.