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path: root/drivers/clk/mxs/clk-imx28.c
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2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159Thomas Gleixner1-7/+1
Based on 1 normalized pattern(s): the code contained herein is licensed under the gnu general public license you may obtain a copy of the gnu general public license version 2 or later at the following locations http www opensource org licenses gpl license html http www gnu org copyleft gpl html extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 161 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.383790741@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-20clk: mxs: Include clk.h in C files that use itStephen Boyd1-1/+1
Clock provider drivers generally shouldn't include clk.h because it's the consumer API. The clk.h include is being included in all mxs files because it's part of mxs/clk.h even though nothing actually requires it in that file. Move the clk.h include to the C files that are actually using it and remove the clk.h include from the header file. The clkdev.h include isn't used either, so drop it too. Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-06-05clk: make several parent names constUwe Kleine-König1-9/+9
Since commit 2893c379461a ("clk: make strings in parent name arrays const") the name of parent clocks can be const. So add more const in several clock drivers. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-04-13clk: don't use __initconst for non-const arraysUwe Kleine-König1-9/+9
The statement static const char *name[]; defines a modifiable array of pointers to constant chars. That is *name[0] = 'f'; is forbidden, but name[0] = "f"; is not. So marking an array that is defined as above with __initconst is wrong. Either an additional const must be added such that the whole definition reads: static const char *const name[] __initconst; or where this is not possible __initdata must be used. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Michael Turquette <mturquette@linaro.org>
2013-09-29ARM: mxs: remove custom .init_time hookSebastian Hesselbarth1-8/+8
This patch converts clk-imx2[38] clocksource_of_init compatible init associated with fsl,imx2[38]-clkctrl. With arch/arm calling of_clk_init(NULL) from time_init(), we can now also remove custom .init_time hooks. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Mike Turquette <mturquette@linaro.org> Acked-by: Shawn Guo <shawn.guo@linaro.org>
2013-05-31clk: mxs: Include clk mxs header fileFabio Estevam1-0/+1
Fix the following sparse warnings: drivers/clk/mxs/clk-imx28.c:72:5: warning: symbol 'mxs_saif_clkmux_select' was not declared. Should it be static? drivers/clk/mxs/clk-imx28.c:156:12: warning: symbol 'mx28_clocks_init' was not declared. Should it be static? Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org> [mturquette@linaro.org: fixed $SUBJECT line]
2013-04-01clk: mxs: remove the use of mach level IO accessorShawn Guo1-7/+6
It removes the use of mach level IO accessor __mxs_setl/clrl, and hence removes mach header inclusion from clock driver. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Mike Turquette <mturquette@linaro.org>
2013-04-01clk: mxs: get base address from device treeShawn Guo1-8/+17
Instead of using the static definitions, get clkctrl and digctl base addresses with mapping from device tree. Use macro on variable is not nice, but it's done here to save huge pointless diff stat. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Mike Turquette <mturquette@linaro.org>
2013-04-01ARM: mxs: look up timrot clock from device treeShawn Guo1-1/+0
Change call clk_get_sys() to of_clk_get() to look up timrot clock from device tree, so that the clk_register_clkdev() call for timrot can be saved in clock driver. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01ARM: mxs: use CLKSRC_OF helper to initialize timerShawn Guo1-3/+0
Select CLKSRC_OF and use clocksource_of_init() to initialize timer, so that the call to mxs_timer_init() in clock driver can be removed. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-02-22Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-1/+1
Pull ARM SoC-specific updates from Arnd Bergmann: "This is a larger set of new functionality for the existing SoC families, including: - vt8500 gains support for new CPU cores, notably the Cortex-A9 based wm8850 - prima2 gains support for the "marco" SoC family, its SMP based cousin - tegra gains support for the new Tegra4 (Tegra114) family - socfpga now supports a newer version of the hardware including SMP - i.mx31 and bcm2835 are now using DT probing for their clocks - lots of updates for sh-mobile - OMAP updates for clocks, power management and USB - i.mx6q and tegra now support cpuidle - kirkwood now supports PCIe hot plugging - tegra clock support is updated - tegra USB PHY probing gets implemented diffently" * tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (148 commits) ARM: prima2: remove duplicate v7_invalidate_l1 ARM: shmobile: r8a7779: Correct TMU clock support again ARM: prima2: fix __init section for cpu hotplug ARM: OMAP: Consolidate OMAP USB-HS platform data (part 3/3) ARM: OMAP: Consolidate OMAP USB-HS platform data (part 1/3) arm: socfpga: Add SMP support for actual socfpga harware arm: Add v7_invalidate_l1 to cache-v7.S arm: socfpga: Add entries to enable make dtbs socfpga arm: socfpga: Add new device tree source for actual socfpga HW ARM: tegra: sort Kconfig selects for Tegra114 ARM: tegra: enable ARCH_REQUIRE_GPIOLIB for Tegra114 ARM: tegra: Fix build error w/ ARCH_TEGRA_114_SOC w/o ARCH_TEGRA_3x_SOC ARM: tegra: Fix build error for gic update ARM: tegra: remove empty tegra_smp_init_cpus() ARM: shmobile: Register ARM architected timer ARM: MARCO: fix the build issue due to gic-vic-to-irqchip move ARM: shmobile: r8a7779: Correct TMU clock support ARM: mxs_defconfig: Select CONFIG_DEVTMPFS_MOUNT ARM: mxs: decrease mxs_clockevent_device.min_delta_ns to 2 clock cycles ARM: mxs: use apbx bus clock to drive the timers on timrotv2 ...
2013-02-05ARM: mxs: use apbx bus clock to drive the timers on timrotv2Torben Hohn1-1/+1
timer resolution of ~32us is pretty low. v2 has 32bits resolution, so we have quite some headroom, and can use the 24MHz clock. v1 has only 16bits, so we only increase v2. So we just exchange the timrot clock in imx28. On imx23 we have timrotv1 and everything stays the same. Signed-off-by: Torben Hohn <torbenh@linutronix.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-16clk: mxs: Index is always positiveFabio Estevam1-1/+1
Fix the following warnings when building with W=1 option: drivers/clk/mxs/clk-imx23.c: In function 'mx23_clocks_init': drivers/clk/mxs/clk-imx23.c:149:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] drivers/clk/mxs/clk-imx23.c:165:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] ... drivers/clk/mxs/clk-imx28.c: In function 'mx28_clocks_init': drivers/clk/mxs/clk-imx28.c:227:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] drivers/clk/mxs/clk-imx28.c:244:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-11-16clk: mxs: Use a better name for the USB PHY clockFabio Estevam1-5/+5
Use a better name for the USB PHY clock. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-10-02Merge tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-1/+1
Pull ARM soc-specific updates, take 2 from Olof Johansson: "This branch converts the MXS Freescale platform to use irqdomains and sparse IRQ, in preparation for DT probing and multiplatform kernels." * tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: mxs: remove mach/irqs.h ARM: mxs: select SPARSE_IRQ ARM: mxs: adopt irq_domain support for icoll driver ARM: mxs: select MULTI_IRQ_HANDLER ARM: mxs: retrieve timer irq from device tree gpio/mxs: adopt irq_domain support for mxs gpio driver
2012-09-11clk: mxs: replace imx28 clk_register_clkdev with clock DT lookupShawn Guo1-103/+10
It really becomes a maintenance issue that every time a device needs to look up (clk_get) a clock we have to patch kernel clock file to call clk_register_clkdev for that clock. Since clock DT support which is meant to resolve clock lookup in device tree is in place, the patch moves imx28 client devices' clock lookup over to device tree, so that any new lookup to be added at later time can just get done in DT instead of kernel. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-09-03ARM: mxs: retrieve timer irq from device treeShawn Guo1-1/+1
Rather than using the static timer irq definition, we should retrieve timer irq from device tree for better. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-07-12Merge branch 'clk/mxs-for-3.6' of ↵Mike Turquette1-0/+4
git://git.linaro.org/people/shawnguo/linux-2.6 into clk-next
2012-07-12clk: mxs: clk_register_clkdev mx28 usb clocksRichard Zhao1-0/+4
Signed-off-by: Richard Zhao <richard.zhao@freescale.com> Tested-by: Subodh Nijsure <snijsure@grid-net.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-07-12Merge branch 'clk/mxs-for-3.6' of ↵Mike Turquette1-4/+5
git://git.linaro.org/people/shawnguo/linux-2.6 into clk-3.6
2012-07-05clk: mxs: imx28: decrease the frequency of ref_io1 for SSP2 and SSP3Lauri Hintsala1-3/+3
SSP0 and SSP1 use ref_io0 which has decreased frequency. Expand the frequency fix for ref_io1 to get SSP2 and SSP3 to work. Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-06-27clk: mxs: add clkdev lookup for pwmShawn Guo1-0/+1
Add pwm clock lookup for imx23 and imx28 booting from device tree. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-06-27clk: mxs: rename the gpmi clock for imx28Huang Shijie1-1/+1
rename the clock name from `8000c000.gpmi` to `8000c000.gpmi-nand`. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-06-26clk: mxs: fix clock lookup after freeing init memoryMarc Kleine-Budde1-14/+14
The struct clk_lookup are marked as __initdata, resulting in being removed from memory after the kernel finished booting. However this leads to a NULL pointer de-ref if loading a module which uses clk_get. This patch removes the __initdata from the struct clk_lookup. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-06-26clk: mxs: fix ref_io clock definitionShawn Guo1-2/+2
The definition of clocks ref_io0 and ref_io1 were inverted. It causes a mmc regression on some boards right away. Fix the regression by correcting the ref_io clock definition. Reported-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Mike Turquette <mturquette@linaro.org>
2012-05-13mmc: mxs-mmc: get rid of the use of cpu_is_xxxShawn Guo1-4/+4
The register HW_SSP_VERSION is broken for ssp version detection, as the address of the register is different between imx23 and imx28. Let's use platform_device_id to detect the device, so that the use of cpu_is_xxx can be removed. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Chris Ball <cjb@laptop.org>
2012-05-12dma: mxs-dma: make platform_device_id more genericShawn Guo1-2/+2
Rewrite mxs_dma_is_apbh and mxs_dma_is_apbx in order to support other SoCs like imx6q and reform the platform_device_id for the better further dt support. Cc: Dan Williams <dan.j.williams@intel.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Huang Shijie <b32955@freescale.com> Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Marek Vasut <marex@denx.de> Acked-by: Vinod Koul <vinod.koul@intel.com>
2012-05-12ARM: mxs: add initial device tree support for imx28-evk boardDong Aisheng1-0/+1
This patch includes basic dt support which can boot via nfs rootfs. Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Marek Vasut <marex@denx.de>
2012-05-08ARM: mxs: remove now unused timer_clk argument from mxs_timer_initShawn Guo1-1/+1
With old mxs clock support removed, the timer_clk argument of mxs_timer_init is unused now, so remove it. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-05-08clk: mxs: add clock support for imx28Shawn Guo1-0/+337
Add imx28 clock support based on common clk framework. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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