summaryrefslogtreecommitdiffstats
path: root/drivers/clk
AgeCommit message (Collapse)AuthorFilesLines
2017-01-21Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds1-7/+7
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fix from Stephen Boyd: "One fix for Samsung Exynos524x SoCs where recent IOMMU patches have caused some of these clocks to turn off when they were always left on before" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk/samsung: exynos542x: mark some clocks as critical
2017-01-09clk/samsung: exynos542x: mark some clocks as criticalMarek Szyprowski1-7/+7
Some parent clocks of the Exynos542x clock blocks, which have separate power domains (like DISP, MFC, MSC, GSC, FSYS and G2D) must be always enabled to access any register related to power management unit or devices connected to it. For the time being, until a proper solution based on runtime PM is applied, mark those clocks as critical (instead of ignore unused or even no flags) to prevent disabling them. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com> Tested-by: Javier Martinez Canillas <javier@osg.samsung.com> [Exynos5800 Peach Pi Chromebook] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-01-06Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds2-7/+24
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "One fix for a broken driver on Renesas RZ/A1 SoCs with bootloaders that don't turn all the clks on and another fix for stm32f4 SoCs where we have multiple drivers attaching to the same DT node" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: stm32f4: Use CLK_OF_DECLARE_DRIVER initialization method clk: renesas: mstp: Support 8-bit registers for r7s72100
2016-12-21clk: stm32f4: Use CLK_OF_DECLARE_DRIVER initialization methodGabriel Fernandez1-2/+2
Clock and reset controller use same compatible strings (same IP). Since commit 989eafd0b609 ("clk: core: Avoid double initialization of clocks") the OF core flags clock controllers registered with the CLK_OF_DECLARE() macro as OF_POPULATED, so platform devices with the same compatible string will not be registered. Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-21clk: renesas: mstp: Support 8-bit registers for r7s72100Chris Brandt1-5/+22
The RZ/A1 is different than the other Renesas SOCs because the MSTP registers are 8-bit instead of 32-bit and if you try writing values as 32-bit nothing happens...meaning this driver never worked for r7s72100. Fixes: b6face404f38 ("ARM: shmobile: r7s72100: add essential clock nodes to dtsi") Signed-off-by: Chris Brandt <chris.brandt@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-15Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds1-0/+8
Pull ARM updates from Russell King: - an update for clkdev registration error detection to simplify users - add cpu capacity parsing from DT - support for larger cachelines found on UniPhier caches - documentation for udelay constants - properly tag assembly function declarations - remove unnecessary indirection of asm/mach-types.h - switch to syscall table based generation to simplify future additions of system calls, along with correpsonding commit for pkey syscalls - remove redundant sa1101 header file - RONX protect modules when they're in the vmalloc region * 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: mm: allow set_memory_*() to be used on the vmalloc region ARM: mm: fix set_memory_*() bounds checks ARM: 8631/1: clkdev: Detect errors in clk_hw_register_clkdev() for mass registration ARM: 8629/1: vfp: properly tag assembly function declarations in C code ARM: 8622/3: add sysfs cpu_capacity attribute ARM: 8621/3: parse cpu capacity-dmips-mhz from DT ARM: 8623/1: mm: add ARM_L1_CACHE_SHIFT_7 for UniPhier outer cache ARM: Update mach-types ARM: sa1100: remove SA-1101 header file ARM: 8619/1: udelay: document the various constants ARM: wire up new pkey syscalls ARM: convert to generated system call tables ARM: remove indirection of asm/mach-types.h
2016-12-15Merge tag 'armsoc-soc' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Arnd Bergmann: "These are updates for platform specific code on 32-bit ARM machines, essentially anything that can not (yet) be expressed using DT files. Noteworthy changes include: - Added support for the TI DRA71x family of SoCs in mach-omap2, this is an new variant of the the DRA72x/DRA74x automotive infotainment chips we already supported for a while. - Added support for the ST STM32F746 SoC, the first Cortex-M7 based microcontroller we support, related to the smaller STM32F4 family. - Renesas adds support for r8a7743 and r8a7745 in mach-shmobile, see http://elinux.org/RZ-G - SMP is now supported on the OX820 platform - A lot of code in mach-omap2 gets removed as a follow-up to removing support for board files in the previous release - Davinci has some new work to improve USB support - For i.MX, the performance monitor now supports profiling the memory controller using 'perf'" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (95 commits) ARM: davinci: da830-evm: use gpio descriptor for mmc pins ARM: davinci: da850-evm: use gpio descriptor for mmc pins ARM: davinci: hawk: use gpio descriptor for mmc pins ARM: ARTPEC-6: add select MFD_SYSCON to MACH_ARTPEC6 ARM: davinci: da8xx: Fix ohci device name ARM: oxnas: Add OX820 config and makefile entry ARM: oxnas: Add OX820 SMP support ARM: davinci: PM: fix build when da850 not compiled in ARM: orion5x: remove legacy support of ls-chl ARM: integrator: drop EBI access use syscon ARM: BCM5301X: Add back handler ignoring external imprecise aborts ARM: davinci: PM: support da8xx DT platforms ARM: davinci: PM: cleanup: remove references to pdata ARM: davinci: PM: rework init, remove platform device ARM: Kconfig: Introduce MACH_STM32F746 flag ARM: mach-stm32: Add a new SOC - STM32F746 ARM: shmobile: document SK-RZG1E board ARM: shmobile: r8a7745: basic SoC support ARM: imx: mach-imx6ul: add imx6ull support ARM: zynq: Reserve correct amount of non-DMA RAM ...
2016-12-15Merge tag 'armsoc-fixes-nc' of ↵Linus Torvalds1-26/+26
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC non-urgent fixes from Arnd Bergmann: "As usual, we queue up a few fixes that don't seem urgent enough to go in through -rc, or that just came a little too late given their size. The zx fixes make the platform finally boot on real hardware, the davinci and imx31 get the DT support working better for some of the machines that are still normally used with classic board files. One tegra fix is important for new bootloader versions, but the bug has been around for a while without anyone noticing. The other changes are mostly cosmetic" * tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits) arm64: tegra: Add missing Smaug revision arm64: tegra: Add VDD_GPU regulator to Jetson TX1 arm64: dts: zte: clean up gic-v3 redistributor properties arm64: dts: zx: Fix gic GICR property bus: vexpress-config: fix device reference leak soc: ti: qmss: fix the case when !SMP ARM: lpc32xx: drop duplicate header device.h ARM: ixp4xx: drop duplicate header gpio.h ARM: socfpga: fix spelling mistake in error message ARM: dts: imx6q-cm-fx6: fix fec pinctrl ARM: dts: imx7d-pinfunc: fix UART pinmux defines ARM: dts: imx6qp: correct LDB clock inputs ARM: OMAP2+: pm-debug: Use seq_putc() in two functions ARM: OMAP2+: Remove the omapdss_early_init_of() function mfd: tps65217: Fix mismatched interrupt number ARM: zx: Fix error handling ARM: spear: Fix error handling ARM: davinci: da850: Fix pwm name matching ARM: clk: imx31: properly init clocks for machines with DT clk: imx31: fix rewritten input argument of mx31_clocks_init() ...
2016-12-12clk: bcm: Fix 'maybe-uninitialized' warning in ↵Boris Brezillon1-1/+1
bcm2835_clock_choose_div_and_prate() best_rate is reported as potentially uninitialized by gcc. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Fixes: 155e8b3b0ee3 ("clk: bcm: Support rate change propagation on bcm2835 clocks") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08clk: add devm_get_clk_from_child() APIKuninori Morimoto1-0/+21
Some driver is using this type of DT bindings for clock (more detail, see ${LINUX}/Documentation/devicetree/bindings/sound/simple-card.txt). sound_soc { ... cpu { clocks = <&xxx>; ... }; codec { clocks = <&xxx>; ... }; }; Current driver in this case uses of_clk_get() for each node, but there is no devm_of_clk_get() today. OTOH, the problem of having devm_of_clk_get() is that it encourages the use of of_clk_get() when clk_get() is more desirable. Thus, this patch adds new devm_get_clk_from_chile() which explicitly reads as get a clock from a child node of this device. By this function, we can also use this type of DT bindings sound_soc { clocks = <&xxx>, <&xxx>; clock-names = "cpu", "codec"; clock-ranges; ... cpu { ... }; codec { ... }; }; Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> [sboyd@codeurora.org: Rename subject to clk + add API] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08clk: st: clk-flexgen: Unmap region obtained by of_iomapArvind Yadav1-1/+4
Free memory mapping, if probe is not successful. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08clk: keystone: pll: Unmap region obtained by of_iomapArvind Yadav1-2/+7
Free memory mapping, if of_pll_div_clk_init is not successful. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08clk:mmp:clk-of-mmp2: Free memory and Unmap region obtained by kzalloc and ↵Arvind Yadav1-3/+12
of_iomap Free memory and memory mapping , if mmp2_clk_init is not successful. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> [sboyd@codeaurora.org: Put return at the right place] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08clk:mmp:clk-of-pxa910: Free memory and Unmap region obtained by kzmalloc and ↵Arvind Yadav1-4/+15
of_iomap Free memory and memory mapping , if pxa910_clk_init is not successful. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08clk: mmp: clk-of-pxa1928: Free memory obtained by kzallocArvind Yadav1-0/+3
Free memory, if init is not successful. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08clk: cdce925: Fix limit checkChristophe JAILLET1-1/+1
It is likely that instead of '1>64', 'q>64' was expected. Moreover, according to datasheet, http://www.ti.com/lit/ds/symlink/cdce925.pdf SCAS847I - JULY 2007 - REVISED OCTOBER 2016 PLL settings limits are: 16 <= q <= 63 So change the upper limit check from 64 to 63. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08clk: bcm: Make COMMON_CLK_IPROC into a libraryStephen Boyd1-11/+5
The broadcom clk driver Kconfig file selects and depends on the COMMON_CLK_IPROC config for different SoC specific drivers. Let's simplify this by always selecting the COMMON_CLK_IPROC config, turning it into a set of library code. We still want to retain the SoC specific options, so we leave those in place. Since we're here we also drop COMMON_CLK dependency because that's implicitly handled by including this file in drivers/clk/Kconfig in the right place and also make CLK_BCM_KONA default to y on the architecture it exists for instead of plain default y. Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <ray.jui@broadcom.com> Cc: Jon Mason <jonmason@broadcom.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08clk: qoriq: added ls1012a clock configurationTang Yuantian1-0/+19
Acked-by: Scott Wood <oss@buserror.net> Signed-off-by: Tang Yuantian <yuantian.tang@nxp.com> [sboyd@codeaurora.org: Sorted list] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08clk: ti: dra7: fix "failed to lookup clock node gmac_gmii_ref_clk_div" boot ↵Grygorii Strashko1-1/+0
message Prevent creating clk alias for non existing gmac_gmii_ref_clk_div clock and, this way, eliminate excessive error message during boot: "ti_dt_clocks_register: failed to lookup clock node gmac_gmii_ref_clk_div" Fixes: c097338ebd3f ("ARM: dts: dra7: cpsw: fix clocks tree") Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08clk: bcm: Allow rate change propagation to PLLH_AUX on VEC clockBoris Brezillon1-1/+6
The VEC clock requires needs to be set at exactly 108MHz. Allow rate change propagation on PLLH_AUX to match this requirement wihtout impacting other IPs (PLLH is currently only used by the HDMI encoder, which cannot be enabled when the VEC encoder is enabled). Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08clk: bcm: Support rate change propagation on bcm2835 clocksBoris Brezillon1-4/+63
Some peripheral clocks, like the VEC (Video EnCoder) clock need to be set to a precise rate (in our case 108MHz). With the current implementation, where peripheral clocks are not allowed to forward rate change requests to their parents, it is impossible to match this requirement unless the bootloader has configured things correctly, or a specific rate has been assigned through the DT (with the assigned-clk-rates property). Add a new field to struct bcm2835_clock_data to specify which parent clocks accept rate change propagation, and support set rate propagation in bcm2835_clock_determine_rate(). Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08clk: bcm2835: Avoid overwriting the div info when disabling a pll_div clkBoris Brezillon1-1/+3
bcm2835_pll_divider_off() is resetting the divider field in the A2W reg to zero when disabling the clock. Make sure we preserve this value by reading the previous a2w_reg value first and ORing the result with A2W_PLL_CHANNEL_DISABLE. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Fixes: 41691b8862e2 ("clk: bcm2835: Add support for programming the audio domain clocks") Cc: <stable@vger.kernel.org> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-08clk: ti: omap36xx: Work around sprz319 advisory 2.1Richard Watts4-11/+104
The OMAP36xx DPLL5, driving EHCI USB, can be subject to a long-term frequency drift. The frequency drift magnitude depends on the VCO update rate, which is inversely proportional to the PLL divider. The kernel DPLL configuration code results in a high value for the divider, leading to a long term drift high enough to cause USB transmission errors. In the worst case the USB PHY's ULPI interface can stop responding, breaking USB operation completely. This manifests itself on the Beagleboard xM by the LAN9514 reporting 'Cannot enable port 2. Maybe the cable is bad?' in the kernel log. Errata sprz319 advisory 2.1 documents PLL values that minimize the drift. Use them automatically when DPLL5 is used for USB operation, which we detect based on the requested clock rate. The clock framework will still compute the PLL parameters and resulting rate as usual, but the PLL M and N values will then be overridden. This can result in the effective clock rate being slightly different than the rate cached by the clock framework, but won't cause any adverse effect to USB operation. Signed-off-by: Richard Watts <rrw@kynesim.co.uk> [Upported from v3.2 to v4.9] Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Ladislav Michl <ladis@linux-mips.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-07clk: clk-wm831x: fix a logic errorPan Bian1-1/+1
Fix bug https://bugzilla.kernel.org/show_bug.cgi?id=188561. Function wm831x_clkout_is_prepared() returns "true" when it fails to read CLOCK_CONTROL_1. "true" means the device is already prepared. So return "true" on the read failure seems improper. Signed-off-by: Pan Bian <bianpan2016@163.com> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Fixes: f05259a6ffa4 ("clk: wm831x: Add initial WM831x clock driver") Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-07clk: uniphier: add cpufreq data for LD11, LD20 SoCsMasahiro Yamada2-1/+61
Add more data to 64bit SoCs for the cpufreq support. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-07clk: uniphier: add CPU-gear change (cpufreq) supportMasahiro Yamada4-2/+136
Core support code for CPU frequency changes, which will be used by the generic cpufreq driver. The register view is different from the generic clk-mux; it has a separate status register, and an update bit to load the register setting. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-12-06Merge tag 'v4.10-rockchip-clk2' of ↵Stephen Boyd5-2/+558
git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next Pull rockchip clk driver updates from Heiko Stuebner: A new clock controller for the rk1108 soc (single-core Cortex-A7+DSP), a fix making sure the cpuclk rate is actually valid, before trying to set it and a copy-paste fix for the rk3399's testclk. * tag 'v4.10-rockchip-clk2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: clk: rockchip: add clock controller for rk1108 dt-bindings: add documentation for rk1108 cru clk: rockchip: add dt-binding header for rk1108 clk: rockchip: fix copy-paste error in rk3399 testclk clk: rockchip: validity should be checked prior to cpu clock rate change
2016-11-23clk: qcom: Put venus core0/1 gdscs to hw control modeSricharan R1-0/+2
The venus video ip's internal core blocks are under the control of the firmware and their powerdomains needs to be 'ON' only when used by the firmware. So putting it into hw controlled mode lets this to happen, otherwise the firmware hangs checking for this. Signed-off-by: Sricharan R <sricharan@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23clk: qcom: gdsc: Add support for gdscs with HW controlRajendra Nayak2-0/+19
Some GDSCs might support a HW control mode, where in the power domain (gdsc) is brought in and out of low power state (while unsued) without any SW assistance, saving power. Such GDSCs can be configured in a HW control mode when powered on until they are explicitly requested to be powered off by software. Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Sricharan R <sricharan@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23Merge branch 'clk-fixes' into clk-nextStephen Boyd3-3/+3
* clk-fixes: clk: bcm: Fix unmet Kconfig dependencies for CLK_BCM_63XX clk: sunxi-ng: enable so-said LDOs for A33 SoC's pll-mipi clock clk: sunxi-ng: sun6i-a31: Enable PLL-MIPI LDOs when ungating it
2016-11-23clk: bcm: Fix unmet Kconfig dependencies for CLK_BCM_63XXFlorian Fainelli1-1/+1
With commit f4e871509959 ("clk: iproc: Make clocks visible options"), COMMON_CLK_IPROC gained a dependency on ARCH_BCM_IPROC, yet CLK_BCM_63XX also selects that option, this causes the following Kconfig warning: warning: (CLK_BCM_63XX) selects COMMON_CLK_IPROC which has unmet direct dependencies ((ARCH_BCM_IPROC || COMPILE_TEST) && COMMON_CLK) Fix this by adding proper depends for COMMON_CLK_IPROC Fixes: f4e871509959 ("clk: iproc: Make clocks visible options") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Ray Jui <ray.jui@broadcom.com> [sboyd@codeaurora.org: Drop default part as it's redundant] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23clk: sunxi-ng: enable so-said LDOs for A33 SoC's pll-mipi clockIcenowy Zheng1-1/+1
In the user manual of A33 SoC, the bit 22 and 23 of pll-mipi control register is called "LDO{1,2}_EN", and according to the BSP source code from Allwinner [1], the LDOs are enabled during the clock's enabling process. The clock failed to generate output if the two LDOs are not enabled. Add the two bits to the clock's gate bits, so that the LDOs are enabled when the PLL is enabled. [1] https://github.com/allwinner-zh/linux-3.4-sunxi/blob/master/drivers/clk/sunxi/clk-sun8iw5.c#L429 Fixes: d05c748bd730 ("clk: sunxi-ng: Add A33 CCU support") Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-11-23clk: bcm2835: Fix ->fixed_divider of pllh_auxBoris Brezillon1-1/+1
There is no fixed divider on pllh_aux. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23clk: qcom: clk-rpm: Fix clk_hw referencesGeorgi Djakov1-14/+22
Fix the clk_hw references to the actual clocks and add a xlate function to return the hw pointers from the already existing static array. Reported-by: Michael Scott <michael.scott@linaro.org> Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23clk: qcom: clk-smd-rpm: Fix clk_hw referencesGeorgi Djakov1-14/+22
Fix the clk_hw references to the actual clocks and add a xlate function to return the hw pointers from the already existing static array. Reported-by: Michael Scott <michael.scott@linaro.org> Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23clk: qcom: Move all sdcc rcgs to use clk_rcg2_floor_opsRajendra Nayak5-18/+18
The sdcc driver for msm8996/msm8916/msm8974/msm8994 and apq8084 expects a clk_set_rate() on the sdcc rcg clk to set a floor value of supported clk rate closest to the requested rate, by looking up the frequency table. So move all the sdcc rcgs on all these platforms to use the newly introduced clk_rcg2_floor_ops Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org> Signed-off-by: Jeremy McNicoll <jeremymc@redhat.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-23clk: qcom: Add rcg ops to return floor value closest to the requested rateRajendra Nayak4-9/+86
The default behaviour with clk_rcg2_ops is for the clk_round_rate()/clk_set_rate() to return/set a ceil clock rate closest to the requested rate by looking up the corresponding frequency table. However, we do have some instances (mainly sdcc on various platforms) of clients expecting a clk_set_rate() to set a floor value instead. Add a new clk_rcg2_floor_ops to handle this for such specific rcg instances Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-22ARM: 8631/1: clkdev: Detect errors in clk_hw_register_clkdev() for mass ↵Geert Uytterhoeven1-0/+8
registration Unlike clk_register_clkdev(), clk_hw_register_clkdev() doesn't check for passed error objects from a previous registration call. Hence the caller of clk_hw_register_*() has to check for errors before calling clk_hw_register_clkdev*(). Make clk_hw_register_clkdev() more similar to clk_register_clkdev() by adding this error check, removing the burden from callers that do mass registration. Fixes: e4f1b49bda6d6aa2 ("clkdev: Add clk_hw based registration APIs") Fixes: 944b9a41e004534f ("clk: ls1x: Migrate to clk_hw based OF and registration APIs") Fixes: 44ce9a9ae977736f ("MIPS: TXx9: Convert to Common Clock Framework") Fixes: f48d947a162dfa9d ("clk: clps711x: Migrate to clk_hw based OF and registration APIs") Fixes: b4626a7f489238a5 ("CLK: Add Loongson1C clock support") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-11-21Merge tag 'clk-v4.10-exynos5433' of git://linuxtv.org/snawrocki/samsung into ↵Stephen Boyd1-15/+15
clk-next Pull Exynos5433 SoC updates from Sylwester Nawrocki: - addition of missing documentation and DT properties for the CMU_AUD block source clocks, - correction of CMU_FSYS parent clock definition, - marking as critical clocks which have to be enabled in order to access control registers of child CMUs. * tag 'clk-v4.10-exynos5433' of git://linuxtv.org/snawrocki/samsung: clk: exynos5433: Mark some clocks as critical clk: exynos5433: Add documentation for the audio block parent clocks clk: exynos5433: Fix parent clocks for FSYS block
2016-11-21clk: sunxi-ng: sun6i-a31: Enable PLL-MIPI LDOs when ungating itChen-Yu Tsai1-1/+1
The PLL-MIPI clock is somewhat special as it has its own LDOs which need to be turned on for this PLL to actually work and output a clock signal. Add the 2 LDO enable bits to the gate bits. This fixes issues with the TCON not sending vblank interrupts when the tcon and dot clock are indirectly clocked from the PLL-MIPI clock. Fixes: c6e6c96d8fa6 ("clk: sunxi-ng: Add A31/A31s clocks") Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-11-18Merge tag 'imx-fix-nc-4.10' of ↵Olof Johansson1-26/+26
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/fixes-non-critical i.MX non-critical fixes for 4.10: - A series from Vladimir to fix broken i.MX31 DT clock initialization. As i.MX31 DT support is still not quite complete, the changes are tested on qemu kzm target and mx31lite board with simple written DTS files. - A fix for CompuLab's sbc-fx6 baseboard to remove wrong fec pinctrl setting. - A DTS correction for i.MX6QP to reflect the change that the gate of LDB clock has been moved before the divider. - An imx7d-pinfunc fix for UART pinmux defines * tag 'imx-fix-nc-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: dts: imx6q-cm-fx6: fix fec pinctrl ARM: dts: imx7d-pinfunc: fix UART pinmux defines ARM: dts: imx6qp: correct LDB clock inputs ARM: clk: imx31: properly init clocks for machines with DT clk: imx31: fix rewritten input argument of mx31_clocks_init() ARM: dts: imx31: move CCM device node to AIPS2 bus devices ARM: dts: imx31: fix clock control module interrupts description Signed-off-by: Olof Johansson <olof@lixom.net>
2016-11-18clk: exynos5433: Mark some clocks as criticalMarek Szyprowski1-14/+14
Some parent clocks of the Exynos5433 CMUs must be always enabled to access any register in the given CMU or devices connected to it. For the time being, until a proper solution based on runtime PM is applied, mark those clocks as critical (instead of ignore unused) to prevent disabling them. Reported-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Tested-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2016-11-17Merge tag 'clk-renesas-for-v4.10-tag3' of ↵Stephen Boyd10-1/+974
git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next Pull more clk driver updates from Geert Uytterhoeven: - CSI2 and VIN clocks for R-Car M3-W, - Clock drivers for new RZ/G1M and RZ/G1E SoCs, - Minor bug fix for R-Car H3. * tag 'clk-renesas-for-v4.10-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers: clk: renesas: cpg-mssr: Add R8A7745 support clk: renesas: cpg-mssr: Add R8A7743 support clk: renesas: cpg-mssr: Add common R-Car Gen2 support clk: renesas: r8a7795: Fix HDMI parent clock clk: renesas: r8a7796: Add VIN clocks clk: renesas: r8a7796: Add CSI2 clocks
2016-11-17Merge tag 'clk-renesas-for-v4.10-tag2' of ↵Stephen Boyd7-51/+59
git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into clk-next Pull Renesas clk driver updates from Geerty Uytterhoeven: - Add R-Car RST driver for obtaining mode pin state, and move the related functionality from platform code to DT, - Add r8a7743 and r8a7745 CPG Core Clock Definitions. The commits here are intermingled with arm-soc material because of the hard dependency we're breaking between mach code and driver code. We're replacing that with a driver dependency between the soc driver and the clk driver. * tag 'clk-renesas-for-v4.10-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers: (25 commits) clk: renesas: Add r8a7745 CPG Core Clock Definitions clk: renesas: Add r8a7743 CPG Core Clock Definitions clk: renesas: rcar-gen2: Remove obsolete rcar_gen2_clocks_init() clk: renesas: r8a7779: Remove obsolete r8a7779_clocks_init() clk: renesas: r8a7778: Remove obsolete r8a7778_clocks_init() ARM: shmobile: rcar-gen2: Stop passing mode pins state to clock driver ARM: shmobile: r8a7779: Stop passing mode pins state to clock driver ARM: shmobile: r8a7778: Stop passing mode pins state to clock driver clk: renesas: rcar-gen3-cpg: Remove obsolete rcar_gen3_read_mode_pins() clk: renesas: r8a7796: Obtain mode pin values from R-Car RST driver clk: renesas: r8a7795: Obtain mode pin values from R-Car RST driver clk: renesas: rcar-gen2: Obtain mode pin values using RST driver clk: renesas: r8a7779: Obtain mode pin values from R-Car RST driver clk: renesas: r8a7778: Obtain mode pin values using R-Car RST driver arm64: renesas: r8a7796 dtsi: Add device node for RST module arm64: renesas: r8a7795 dtsi: Add device node for RST module ARM: dts: r8a7794: Add device node for RST module ARM: dts: r8a7793: Add device node for RST module ARM: dts: r8a7792: Add device node for RST module ARM: dts: r8a7791: Add device node for RST module ...
2016-11-17clk: exynos5433: Fix parent clocks for FSYS blockMarek Szyprowski1-1/+1
The proper parent clock for FSYS block is "aclk_fsys_200" according to the Exynos5433 reference manual. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2016-11-16clk: sunxi-ng: Mark structs static and cleanup spacesStephen Boyd1-6/+6
Some checkpatch warnings about spaces were missed and we didn't mark two structs as static. Clean it up. Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-11-16Merge tag 'sunxi-clk-for-4.10' of ↵Stephen Boyd21-130/+1201
https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-next Pull Allwinner clock changes from Maxime Ripard: The usual patches from us, but most notably the introduction of the A64 clocks unit. * tag 'sunxi-clk-for-4.10' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: clk: sunxi-ng: sun8i-h3: Set CLK_SET_RATE_PARENT for audio module clocks clk: sunxi-ng: sun8i-a23: Set CLK_SET_RATE_PARENT for audio module clocks clk: sunxi-ng: Add A64 clocks clk: sunxi-ng: Implement minimum for multipliers clk: sunxi-ng: Add minimums for all the relevant structures and clocks clk: sunxi-ng: Finish to convert to structures for arguments clk: sunxi-ng: Remove the use of rational computations clk: sunxi-ng: Rename the internal structures clk: sunxi: mod0: improve function-level documentation
2016-11-16Merge tag 'imx-clk-4.10' of ↵Stephen Boyd3-21/+342
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into clk-next Pull i.MX clock updates from Shawn Guo: - A patch series to fix the long standing issue with glitchy parent mux of ldb_di_clk, which can hang up LVDS display when ipu_di_clk is sourced from ldb_di_clk. - A patch to add imx6ull clock support on top of imx6ul clock driver. * tag 'imx-clk-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: clk: imx: clk-imx6ul: add clk support for imx6ull clk: imx6: Fix procedure to switch the parent of LDB_DI_CLK clk: imx6: Make the LDB_DI0 and LDB_DI1 clocks read-only clk: imx6: Mask mmdc_ch1 handshake for periph2_sel and mmdc_ch1_axi_podf
2016-11-16Merge branch 'clk-fixes' into clk-nextStephen Boyd5-4/+16
* clk-fixes: clk: efm32gg: Pass correct type to hw provider registration clk: berlin: Pass correct type to hw provider registration clk: sunxi: Fix M factor computation for APB1 clk: sunxi-ng: sun6i-a31: Force AHB1 clock to use PLL6 as parent
2016-11-16Merge tag 'sunxi-clk-fixes-for-4.9' of ↵Stephen Boyd2-1/+13
https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-fixes Pull Allwinner clock fixes from Maxime Ripard: Two fixes, one for the old clock code, one for the new implementation. * tag 'sunxi-clk-fixes-for-4.9' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: clk: sunxi: Fix M factor computation for APB1 clk: sunxi-ng: sun6i-a31: Force AHB1 clock to use PLL6 as parent