Commit Graph

4102 Commits

Author SHA1 Message Date
Tero Kristo f54d2cd3c1 clk: keystone: sci-clk: Fix sci_clk_get
Currently a bug in the sci_clk_get implementation causes it to always
return a clock belonging to the last device in the static list of clock
data. This is due to a bug in the init code that causes the array
used by sci_clk_get to only be populated with the clocks for the last
device, as each device overwrites the entire array with its own clocks.

Fix this by calculating the actual number of clocks for the SoC, and
allocating the whole array in one go. Also, we don't need the handle
to the init data array anymore after doing this, instead we can
just compare the dev_id / clk_id against the registered clocks and
use binary search for speed.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reported-by: Dave Gerlach <d-gerlach@ti.com>
Fixes: b745c0794e ("clk: keystone: Add sci-clk driver support")
Cc: Nishanth Menon <nm@ti.com>
Tested-by: Franklin Cooper <fcooper@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-08-02 18:37:26 -07:00
Stephen Boyd 5c0858f12b Allwinner clock fixes for 4.13
One critical clock fix for sun5i (A10s/A13/R8) which enables propogation
 of clock rate changes from the "cpu" clock to it's parent PLL clock.
 This fixes cpufreq related crashes that have been observed on KernelCI
 with the C.H.I.P. and multi_v7_defconfig.
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Merge tag 'sunxi-clk-fixes-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-fixes

Pull one Allwinner clock fix from Chen-Yu Tsai:

One critical clock fix for sun5i (A10s/A13/R8) which enables propagation
of clock rate changes from the "cpu" clock to it's parent PLL clock.
This fixes cpufreq related crashes that have been observed on KernelCI
with the C.H.I.P. and multi_v7_defconfig.

* tag 'sunxi-clk-fixes-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: sun5i: Add clk_set_rate_parent to the CPU clock
2017-08-02 09:11:44 -07:00
Stephen Boyd b48d7c5b89 Meson Clock fixes:
- mpll: fix mpll0 fractional part ignored
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Merge tag 'meson-clk-fixes-for-4.13-rc4-v2' of git://github.com/baylibre/clk-meson into clk-fixes

Pull one Meson clock fix from Neil Armstrong

* tag 'meson-clk-fixes-for-4.13-rc4-v2' of git://github.com/baylibre/clk-meson:
  clk: meson: mpll: fix mpll0 fractional part ignored
2017-08-02 09:09:42 -07:00
Jerome Brunet 1f737ffa13 clk: meson: mpll: fix mpll0 fractional part ignored
mpll0 clock is special compared to the other mplls. It needs another
bit (ssen) to be set to activate the fractional part the mpll divider

Fixes: 007e6e5c5f ("clk: meson: mpll: add rw operation")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-08-01 14:18:31 +02:00
Sylwester Nawrocki 5b30850bd6 clk: samsung: exynos5420: The EPLL rate table corrections
This patch fixes values of the EPLL K coefficient and changes
the EPLL output frequency values to match exactly what is
possible to achieve with given M, P, S, K coefficients.
This allows to avoid rounding errors and unexpected frequency
being set with clk_set_rate(), due to recalc_rate returning
different values than the PLL rate specified in the
exynos5420_epll_24mhz_tbl table. E.g. this prevents a case
where two consecutive clk_set_rate() calls with same argument
result in different PLL output frequency.

The PLL output frequencies have been calculated with formula:

f = fxtal * (M * 2^16 + K) / (P * 2^S) / 2^16

where fxtal = 24000000.

Fixes: 9842452acd ("clk: samsung: exynos542x: Add EPLL rate table")
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-31 13:16:03 -07:00
Maxime Ripard 9735ee9e3c clk: sunxi-ng: sun5i: Add clk_set_rate_parent to the CPU clock
The current CPU clock is missing the option to change the rate of its
parents, leading to improper rates calculated by cpufreq, and eventually
crashes.

Cc: <stable@vger.kernel.org>
Fixes: 5e73761786 ("clk: sunxi-ng: Add sun5i CCU driver")
Reported-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-07-24 11:37:04 +02:00
Carlo Caione d31fd43c0f clk: x86: Do not gate clocks enabled by the firmware
Read the enable register to determine if the clock is already in use by
the firmware. In this case avoid gating the clock.

Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Darren Hart (VMware) <dvhart@infradead.org>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Fixes: 282a4e4ce5 ("platform/x86: Enable Atom PMC platform clocks")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-18 16:23:13 -07:00
Linus Walleij f905293d65 clk: gemini: Fix reset regression
commit e2860e1f62 ("serial: 8250_of: Add reset support")
introduced reset support for the 8250_of driver.

However it unconditionally uses the assert/deassert pair to
deassert reset on the device at probe and assert it at
remove. This does not work with systems that have a
self-deasserting reset controller, such as Gemini, that
recently added a reset controller.

As a result, the console will not probe on the Gemini with
this message:

Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled
of_serial: probe of 42000000.serial failed with error -524

This (-ENOTSUPP) is the error code returned by the
deassert() operation on self-deasserting reset controllers.

To work around this, implement dummy .assert() and
.deassert() operations in the Gemini combined clock and
reset controller. This fixes the issue on this system.

Cc: Joel Stanley <joel@jms.id.au>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-serial@vger.kernel.org
Fixes: e2860e1f62 ("serial: 8250_of: Add reset support")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-07-17 11:51:10 -07:00
Linus Torvalds 568d135d33 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "Boston platform support:
   - Document DT bindings
   - Add CLK driver for board clocks

  CM:
   - Avoid per-core locking with CM3 & higher
   - WARN on attempt to lock invalid VP, not BUG

  CPS:
   - Select CONFIG_SYS_SUPPORTS_SCHED_SMT for MIPSr6
   - Prevent multi-core with dcache aliasing
   - Handle cores not powering down more gracefully
   - Handle spurious VP starts more gracefully

  DSP:
   - Add lwx & lhx missaligned access support

  eBPF:
   - Add MIPS support along with many supporting change to add the
     required infrastructure

  Generic arch code:
   - Misc sysmips MIPS_ATOMIC_SET fixes
   - Drop duplicate HAVE_SYSCALL_TRACEPOINTS
   - Negate error syscall return in trace
   - Correct forced syscall errors
   - Traced negative syscalls should return -ENOSYS
   - Allow samples/bpf/tracex5 to access syscall arguments for sane
     traces
   - Cleanup from old Kconfig options in defconfigs
   - Fix PREF instruction usage by memcpy for MIPS R6
   - Fix various special cases in the FPU eulation
   - Fix some special cases in MIPS16e2 support
   - Fix MIPS I ISA /proc/cpuinfo reporting
   - Sort MIPS Kconfig alphabetically
   - Fix minimum alignment requirement of IRQ stack as required by
     ABI / GCC
   - Fix special cases in the module loader
   - Perform post-DMA cache flushes on systems with MAARs
   - Probe the I6500 CPU
   - Cleanup cmpxchg and add support for 1 and 2 byte operations
   - Use queued read/write locks (qrwlock)
   - Use queued spinlocks (qspinlock)
   - Add CPU shared FTLB feature detection
   - Handle tlbex-tlbp race condition
   - Allow storing pgd in C0_CONTEXT for MIPSr6
   - Use current_cpu_type() in m4kc_tlbp_war()
   - Support Boston in the generic kernel

  Generic platform:
   - yamon-dt: Pull YAMON DT shim code out of SEAD-3 board
   - yamon-dt: Support > 256MB of RAM
   - yamon-dt: Use serial* rather than uart* aliases
   - Abstract FDT fixup application
   - Set RTC_ALWAYS_BCD to 0
   - Add a MAINTAINERS entry

  core kernel:
   - qspinlock.c: include linux/prefetch.h

  Loongson 3:
   - Add support

  Perf:
   - Add I6500 support

  SEAD-3:
   - Remove GIC timer from DT
   - Set interrupt-parent per-device, not at root node
   - Fix GIC interrupt specifiers

  SMP:
   - Skip IPI setup if we only have a single CPU

  VDSO:
   - Make comment match reality
   - Improvements to time code in VDSO"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (86 commits)
  locking/qspinlock: Include linux/prefetch.h
  MIPS: Fix MIPS I ISA /proc/cpuinfo reporting
  MIPS: Fix minimum alignment requirement of IRQ stack
  MIPS: generic: Support MIPS Boston development boards
  MIPS: DTS: img: Don't attempt to build-in all .dtb files
  clk: boston: Add a driver for MIPS Boston board clocks
  dt-bindings: Document img,boston-clock binding
  MIPS: Traced negative syscalls should return -ENOSYS
  MIPS: Correct forced syscall errors
  MIPS: Negate error syscall return in trace
  MIPS: Drop duplicate HAVE_SYSCALL_TRACEPOINTS select
  MIPS16e2: Provide feature overrides for non-MIPS16 systems
  MIPS: MIPS16e2: Report ASE presence in /proc/cpuinfo
  MIPS: MIPS16e2: Subdecode extended LWSP/SWSP instructions
  MIPS: MIPS16e2: Identify ASE presence
  MIPS: VDSO: Fix a mismatch between comment and preprocessor constant
  MIPS: VDSO: Add implementation of gettimeofday() fallback
  MIPS: VDSO: Add implementation of clock_gettime() fallback
  MIPS: VDSO: Fix conversions in do_monotonic()/do_monotonic_coarse()
  MIPS: Use current_cpu_type() in m4kc_tlbp_war()
  ...
2017-07-15 10:59:54 -07:00
Paul Burton 6b0fd6c1a2 clk: boston: Add a driver for MIPS Boston board clocks
Add a driver for the clocks provided by the MIPS Boston board from
Imagination Technologies. 2 clocks are provided - the system clock & the
CPU clock - and each is a simple fixed rate clock whose frequency can be
determined by reading a register provided by the board.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16483/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-07-11 14:13:06 +02:00
Joel Stanley 785b62167d clk: gemini: Read status before using the value
The probe does a shift and mask of val without having read it from the hardware.

Fixes: 846423f967 ("clk: Add Gemini SoC clock controller")
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-29 18:47:35 -07:00
Jerome Brunet 2b286b09a0 clk: scpi: error when clock fails to register
Current implementation of scpi_clk_add just print a warning when clock
fails to register but then keep going as if nothing happened. The
provider is then registered with bogus data.

This may latter lead to an Oops in __clk_create_clk when
hlist_add_head(&clk->clks_node, &hw->core->clks) is called.

This patch fixes the issue and errors if a clock fails to register.

Fixes: cd52c2a4b5 ("clk: add support for clocks provided by SCP(System Control Processor)")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-29 18:47:35 -07:00
Alexandre Belloni b3b02eac33 clk: at91: Add sama5d2 suspend/resume
On sama5d2, VDD core maybe be cut while in suspend. This means registers
will be lost. Ensure they are saved and restored properly.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-29 18:47:35 -07:00
Arnd Bergmann 682430e877 clk: keystone: TI_SCI_PROTOCOL is needed for clk driver
CONFIG_COMPILE_TEST allows building a configuration without
TI_SCI_PROTOCOL, which then fails to link:

drivers/clk/keystone/sci-clk.o: In function `ti_sci_clk_probe':
sci-clk.c:(.text.ti_sci_clk_probe+0x4c): undefined reference to `devm_ti_sci_get_handle'

This makes it a hard dependency. Right now, that means we can't
actually compile-test the driver unless ARCH_KEYSTONE is set as
well, but we can fix that by allowing TI_MESSAGE_MANAGER to
be selected for COMPILE_TEST as well.

Fixes: b745c0794e ("clk: keystone: Add sci-clk driver support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-22 17:39:25 -07:00
Krzysztof Kozlowski 5bb4053b59 clk: samsung: audss: Fix silent hang on Exynos4412 due to disabled EPLL
Similarly to commit f1e9203e23 ("clk: samsung: Fix Exynos 5420 pinctrl
setup and clock disable failure due to domain being gated") for
Exynos5420, the Exynos4412 also requires that EPLL is not disabled.
Otherwise any access to MAUDIO block will silently halt.

This was not visible before because EPLL on Exynos4 could not be
disabled before commit 6edfa11cb3 ("clk: samsung:
Add enable/disable operation for PLL36XX clocks").  After this commit,
on Odroid U3 board one can see silent hang, usually with last (but
unrelated) messages:

	[    2.382741] input: gpio_keys as /devices/platform/gpio_keys/input/input0
	[    2.405686] usb 1-3: new high-speed USB device number 3 using exynos-ehci
	[    2.419843] max77686-rtc max77686-rtc: setting system clock to 2017-06-21 17:04:13 UTC (1498064653)

Mark Exynos4 variant as also needed EPLL to be enabled all the time.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-22 14:55:35 -07:00
Masahiro Yamada 72d0d8672c clk: uniphier: provide NAND controller clock rate
This allows the NAND driver to get the clock rate via clk_get_rate().

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-21 10:47:27 -07:00
Jiancheng Xue 0d84659619 clk: hisilicon: add usb2 clocks for hi3798cv200 SoC
Add usb2 clocks for hi3798cv200 SoC.

Signed-off-by: Jiancheng Xue <xuejiancheng@hisilicon.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-21 10:46:45 -07:00
Linus Walleij 846423f967 clk: Add Gemini SoC clock controller
The Cortina Systems Gemini (SL3516/CS3516) has an on-chip clock
controller that derive all clocks from a single crystal, using some
documented and some undocumented PLLs, half dividers, counters and
gates. This is a best attempt to construct a clock driver for the
clocks so at least we can gate off unused hardware and driver the
PCI bus clock.

Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
[sboyd@codeaurora.org: Fix devm_ioremap_resource() return value
checking]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-21 10:45:54 -07:00
Stephen Boyd e293915a6e clk: iproc: Remove __init marking on iproc_pll_clk_setup()
Now that this function is called from driver probe routines, it
needs to drop the __init marking because it isn't just called
from init code.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Sandeep Tripathy <sandeep.tripathy@broadcom.com>
Cc: Anup Patel <anup.patel@broadcom.com>
Cc: Ray Jui <ray.jui@broadcom.com>
Cc: Scott Branden <scott.branden@broadcom.com>
Fixes: 654cdd3229 ("clk: bcm: Add clocks for Stingray SOC")
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-21 09:12:57 -07:00
Sandeep Tripathy 654cdd3229 clk: bcm: Add clocks for Stingray SOC
This patch adds support for Stingray clocks in iproc
ccf. The Stingray SOC has various plls based on iproc
pll architecture.

Signed-off-by: Sandeep Tripathy <sandeep.tripathy@broadcom.com>
Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:45 -07:00
Sean Wang 567bf2ed86 clk: mediatek: export cpu multiplexer clock for MT8173 SoCs
The patch enables CPU multiplexer clock on MT8173 SoC which fixes up
cpufreq driver fails at acquiring intermediate clock source when driver
probe is called.

Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@linaro.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:44 -07:00
Sean Wang 43ed50ee5a clk: mediatek: export cpu multiplexer clock for MT2701/MT7623 SoCs
The patch enables CPU multiplexer clock on MT2701/MT7623 SoC which fixes
up cpufreq driver fails at acquiring intermediate clock source when driver
probe is called.

Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@linaro.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:44 -07:00
Sean Wang 1e17de9049 clk: mediatek: add missing cpu mux causing Mediatek cpufreq can't work
This patch adds CPU multiplexer clocks which are essential for Mediatek
cpufreq driver. It would use the CPU clock multiplexer to switch to the
intermediate clock source temporarily and then wait for the primary clock
changing getting stable.

Signed-off-by: Pi-Cheng Chen <pi-cheng.chen@linaro.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:43 -07:00
Geert Uytterhoeven 34deaff763 clk: renesas: cpg-mssr: Use of_device_get_match_data() helper
If CONFIG_OF=n:

    drivers/clk/renesas/renesas-cpg-mssr.c: In function ‘cpg_mssr_probe’:
    drivers/clk/renesas/renesas-cpg-mssr.c:702: warning: dereferencing ‘void *’ pointer
    drivers/clk/renesas/renesas-cpg-mssr.c:702: error: request for member ‘data’ in something not a structure or union

To fix this, use the of_device_get_match_data() helper, for which a
dummy version is provided if CONFIG_OF=n.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:43 -07:00
Zhangfei Gao 3ff77275f7 clk: hi6220: add acpu clock
Add acpu clock, including sft clock controlling hi6220 coresight module

Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Li Pengcheng <lipengcheng8@huawei.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:42 -07:00
Shawn Guo 6454504c80 clk: zx296718: export I2S mux clocks
Export I2S mux clocks, so that device tree can refer to them for setting
a better parent clock for I2S work clock.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:42 -07:00
Stefan Agner 22039d150f clk: imx7d: create clocks behind rawnand clock gate
The rawnand clock gate gates two clocks, NAND_USDHC_BUS_CLK_ROOT
and NAND_CLK_ROOT. However, the gate has been in the chain of the
latter only. This does not allow to use the NAND_USDHC_BUS_CLK_ROOT
only, e.g. as required by APBH-Bridge-DMA.

Add new clocks which represent the clock after the gate, and use a
shared clock gate to correctly model the hardware.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:41 -07:00
Zhong Kaihua 2a8e44dffb clk: hi3660: Set PPLL2 to 2880M
Set PPLL2 to 2880M. With this patch, we saw better compatibility
on various 1080p HDMI monitors.

Signed-off-by: Zhong Kaihua <zhongkaihua@huawei.com>
Signed-off-by: Zheng Shaobo <zhengshaobo1@huawei.com>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
[sboyd@codeaurora.org: Add UL to long number to silence C90
warning]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 19:02:41 -07:00
Chen Jun 9357c150e6 clk: hi3660: add clocks for video encoder, decoder and ISP
This patch adds more clocks for hi3660, including:
 - video encoder and decoder
 - ISP (Image Signal Processing)

Signed-off-by: Chen Jun <chenjun14@huawei.com>
Signed-off-by: Zhong Kaihua <zhongkaihua@huawei.com>
Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 18:00:34 -07:00
Chen Jun 73908acb1e clk: hi3660: fix wrong parent name of clk_mux_sysbus
Parent name of clk_mux_sysbus is not correct. This patch fixes it.

Signed-off-by: Chen Jun <chenjun14@huawei.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Guodong Xu <guodong.xu@linaro.org>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 18:00:20 -07:00
Srinivas Kandagatla a94fafb7be clk: gcc-msm8916: add support to 9.6MHz codec clk
MCLK for internal audio codec is expected to be at 9.6MHz by default.
This patch adds support to 9.6MHz to make the default case possible.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 17:43:49 -07:00
Abhishek Sahu 371a950745 clk: qcom: Add ipq8074 Global Clock Controller support
This patch adds support for the global clock controller found on
the ipq8074 based devices. This includes UART, I2C, SPI etc.

Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 17:29:41 -07:00
Stephen Boyd 4a5aa06960 clk: mvebu: cp110: Minor cleanups
Mark an array of strings static const and remove the dereference
of a function pointer when assigning to the platform driver probe
struct member.

drivers/clk/mvebu/cp110-system-controller.c:89:12:
warning: symbol 'gate_base_names' was not declared. Should it be static?
drivers/clk/mvebu/cp110-system-controller.c:447:18:
error: cannot dereference this type

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 17:14:11 -07:00
Stephen Boyd 4d4f9a6a19 Merge branch 'clk-cp110' of git://git.infradead.org/linux-mvebu into clk-next
Pull improved Marvel Armada 7K/8K cp110 clk support from Gregory CLEMENT:

We got more information about the clock controllers and the clock tree
of the CP110 part that we find in the Marvell Armada 7K/8K SoCs. The
clk driver is modified accordingly from this new information.

* 'clk-cp110' of git://git.infradead.org/linux-mvebu:
  clk: mvebu: cp110: add sdio clock to cp-110 system controller
  clk: mvebu: cp110: introduce a new binding
  clk: mvebu: cp110: do not depend anymore of the *-clock-output-names
  clk: mvebu: cp110: make failure labels more meaningful
2017-06-19 17:06:46 -07:00
Dinh Nguyen b7f8101d6e clk: socfpga: Fix the smplsel on Arria10 and Stratix10
The smplsel bits for the SDMMC clock on Arria10 and Stratix10 platforms are
offset by 1 additional bit.

Add a new macro SYSMGR_SDMMC_CTRL_SET_AS10 for usage on the Arria10 and
Stratix10 platforms.

Fixes: 5611a5ba8e ("clk: socfpga: update clk.h so for Arria10 platform to use")
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 17:01:55 -07:00
Leo Yan a925810f6e clk: Hi3660: register fixed_rate_clks with CLK_OF_DECLARE_DRIVER
The timer will register into system at very early phase at kernel boot;
if timer needs to use clock, the clock should be get ready in function
of_clk_init() so later the timer driver probe can retrieve clock
successfully. This is finished in below flow on arm64:

  start_kernel()
    `-> time_init()
          `-> of_clk_init(NULL)    => register timer's clock
          `-> clocksource_probe()  => register timer

On Hi3660 the sp804 timer uses clock "osc32k", this clock is registered
as platform driver rather than CLK_OF_DECLARE_DRIVER method. As result,
sp804 timer probe returns failure due if cannot bind clock properly.

To fix the failure, this patch is to split crgctrl clocks into two
subsets. One part is for fixed_rate_clks which includes pre-defined
fixed rate clocks, and "osc32k" clock is in this category; So we change
their registration to CLK_OF_DECLARE_DRIVER method, as result the clocks
can be registered ahead with function of_clk_init() and timer driver can
bind timer clock successfully; the rest of the crgctrl clocks are still
registered by the probe of the platform driver.

This patch also adds checking for all crgctrl clocks registration and
print out log if any clock has failure.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-19 16:36:48 -07:00
Konstantin Porotchkin a45af6d3a9 clk: mvebu: cp110: add sdio clock to cp-110 system controller
This commit updates the CP110 system controller driver to add the
definition for a missing clock.

The SDIO clock is dedicated driving the SDHCI interface and its frequency
is 400MHz (2/5 of PLL source clock).

The SDIO interface should be bound to this clock and not the core clock
as in the older code.
Using the wrong clock lead to a maximum SDHCI frequency of 250 Mhz, while
the HW really supports up to 400 Mhz.

This patch also fixes the NAND clock relationship documentation.

Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
[gregory.clement@free-electrons.com:
- use sdio instead of emmc to name the clock]
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2017-06-19 17:22:23 +02:00
Gregory CLEMENT 5ffeb5f5a7 clk: mvebu: cp110: introduce a new binding
The initial intent when the binding of the cp110 system controller was to
have one flat node. The idea being that what is currently a clock-only
driver in drivers would become a MFD driver, exposing the clock, GPIO and
pinctrl functionality. However, after taking a step back, this would lead
to a messy binding. Indeed, a single node would be a GPIO controller,
clock controller, pinmux controller, and more.

This patch adopts a more classical solution of a top-level syscon node
with sub-nodes for the individual devices. The main benefit will be to
have each functional block associated to its own sub-node where we can
put its own properties.

The introduction of the Armada 7K/8K is still in the early stage so the
plan is to remove the old binding. However, we don't want to break the
device tree compatibility for the few devices already in the field. For
this we still keep the support of the legacy compatible string with a big
warning in the kernel about updating the device tree.

Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2017-06-19 17:22:22 +02:00
Gregory CLEMENT f5667274ba clk: mvebu: cp110: do not depend anymore of the *-clock-output-names
Using the *-clock-output-names property was a convenient way to have a
unique name for each clock even when there are multiple cp110 blocks
as we can find on Armada 8K.

However it has some drawbacks: the main one being a stronger link than
necessary between the driver and the device tree. For example the clock
name can't be changed, removed or moved. It is still the early stage of
introduction of the Armada 7K/8K and the hardware is still not totally
documented, especially for the clock part. By removing the use of
*-clock-output-names it will be easier to add new clocks without breaking
the compatibility.

The name of each clock is now created by using its physical address as a
prefix (as it was done for the platform device names). Thanks to this we
have an automatic way to compute a unique name.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2017-06-19 17:22:21 +02:00
Stephen Boyd 4dea04c1f1 * Expose more clock gate on meson8 (SAR ADC, RNG, USB, SDIO, ETH)
* Add new compatible to the meson8 clock controller for meson8b
 * Add missing parents to gxbb clk81
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Merge tag 'meson-clk-for-4.13-2' of git://github.com/BayLibre/clk-meson into clk-next

Pull Amlogic clk driver updates from Jerome Brunet:

 * Expose more clock gate on meson8 (SAR ADC, RNG, USB, SDIO, ETH)
 * Add new compatible to the meson8 clock controller for meson8b
 * Add missing parents to gxbb clk81

* tag 'meson-clk-for-4.13-2' of git://github.com/BayLibre/clk-meson:
  clk: meson: gxbb: add all clk81 parents
  clk: meson: meson8b: add compatibles for Meson8 and Meson8m2
  clk: meson8b: export the ethernet gate clock
  clk: meson8b: export the USB clocks
  clk: meson8b: export the gate clock for the HW random number generator
  clk: meson8b: export the SDIO clock
  clk: meson8b: export the SAR ADC clocks
2017-06-16 15:01:46 -07:00
Stephen Boyd ef748cb39d Merge branch 'for-4.13-ti-clkctrl' of https://github.com/t-kristo/linux-pm into clk-next
* 'for-4.13-ti-clkctrl' of https://github.com/t-kristo/linux-pm:
  clk: ti: omap4: add clkctrl clock data
  dt-bindings: clk: add omap4 clkctrl definitions
  clk: ti: add support for clkctrl clocks
  Documentation: dt-bindings: Add binding documentation for TI clkctrl clocks
2017-06-16 14:52:02 -07:00
Stephen Boyd 4dc6e1a356 clk: sunxi-ng: Staticize ccu_mux_helper_unapply_prediv()
It isn't used outside of this file right now.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2017-06-16 14:51:36 -07:00
Stephen Boyd 8a02fcf8a0 Allwinner clock patches for 4.13
Some new clock units are supported, for the display clocks unsed in the
 newer SoCs, and the A83T PRCM.
 
 There is also a bunch of minor fixes for clocks that are not used by
 anyone, and reworks needed by drivers that will land in 4.13.
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Merge tag 'sunxi-clk-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-next

Pull Allwinner clock patches from Maxime Ripard:

Some new clock units are supported, for the display clocks unsed in the
newer SoCs, and the A83T PRCM.

There is also a bunch of minor fixes for clocks that are not used by
anyone, and reworks needed by drivers that will land in 4.13.

* tag 'sunxi-clk-for-4.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: (21 commits)
  clk: sunxi-ng: Move all clock types to a library
  clk: sunxi-ng: a83t: Add support for A83T's PRCM
  dt-bindings: clock: sunxi-ccu: Add compatible string for A83T PRCM
  clk: sunxi-ng: select SUNXI_CCU_MULT for sun8i-a83t
  clk: sunxi-ng: a83t: Fix audio PLL divider offset
  clk: sunxi-ng: a83t: Fix PLL lock status register offset
  clk: sunxi-ng: Add driver for A83T CCU
  clk: sunxi-ng: Support multiple variable pre-dividers
  dt-bindings: clock: sunxi-ccu: Add compatible string for A83T CCU
  clk: sunxi-ng: de2: fix wrong pointer passed to PTR_ERR()
  clk: sunxi-ng: sun5i: Export video PLLs
  clk: sunxi-ng: mux: Re-adjust parent rate
  clk: sunxi-ng: mux: Change pre-divider application function prototype
  clk: sunxi-ng: mux: split out the pre-divider computation code
  clk: sunxi-ng: mux: Don't just rely on the parent for CLK_SET_RATE_PARENT
  clk: sunxi-ng: div: Switch to divider_round_rate
  clk: sunxi-ng: Pass the parent and a pointer to the clocks round rate
  clk: divider: Make divider_round_rate take the parent clock
  clk: sunxi-ng: explicitly include linux/spinlock.h
  clk: sunxi-ng: add support for DE2 CCU
  ...
2017-06-16 14:45:27 -07:00
Jerome Brunet 215c80a7d6 clk: meson: gxbb: add all clk81 parents
Remove the FIXME on clk81 mux and add all the documented parents

Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
2017-06-16 18:51:42 +00:00
Jerome Brunet 46460a6be9 Merge branch 'next/headers' into next/drivers 2017-06-16 18:32:36 +00:00
Tero Kristo 1c881b5a4f clk: ti: omap4: add clkctrl clock data
Add data for omap4 clkctrl clocks, and register it within the clkctrl
driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-06-15 10:48:08 +03:00
Tero Kristo 88a172526c clk: ti: add support for clkctrl clocks
Previously, hwmod core has been used for controlling the hwmod level
clocks directly. This has certain drawbacks, like being unable to share
the clocks for multiple users, missing usecounting and generally being
totally incompatible with the common clock framework.

This patch adds support for clkctrl clocks for addressing the above
issues. These support the modulemode handling, which will replace the
direct hwmod clkctrl linkage. Any optional clocks are also supported,
gate, mux and divider.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2017-06-15 10:47:43 +03:00
Stephen Boyd 9c861f3328 Merge branch 'clk-fixes' into clk-next
* clk-fixes:
  clk: sunxi-ng: a64: Export PLL_PERIPH0 clock for the PRCM
  clk: sunxi-ng: h3: Export PLL_PERIPH0 clock for the PRCM
  dt-bindings: clock: sunxi-ccu: Add pll-periph to PRCM's needed clocks
  clk: sunxi-ng: enable SUNXI_CCU_MP for PRCM
  clk: sunxi-ng: v3s: Fix usb otg device reset bit
  clk: sunxi-ng: a31: Correct lcd1-ch1 clock register offset
2017-06-14 16:48:21 -07:00
Stephen Boyd 949bdfed4b Allwinner clock fixes for 4.12
Some fixes that fix some bindings that went in 4.12, fix a few reset and
 clock offsets and a build error fix
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Merge tag 'sunxi-clk-fixes-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into clk-fixes

Allwinner clock fixes for 4.12

Some fixes that fix some bindings that went in 4.12, fix a few reset and
clock offsets and a build error fix

* tag 'sunxi-clk-fixes-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: a64: Export PLL_PERIPH0 clock for the PRCM
  clk: sunxi-ng: h3: Export PLL_PERIPH0 clock for the PRCM
  dt-bindings: clock: sunxi-ccu: Add pll-periph to PRCM's needed clocks
  clk: sunxi-ng: enable SUNXI_CCU_MP for PRCM
  clk: sunxi-ng: v3s: Fix usb otg device reset bit
  clk: sunxi-ng: a31: Correct lcd1-ch1 clock register offset
2017-06-14 16:48:03 -07:00
Stephen Boyd 7f274d54bb clk/samsung updates for 4.13
- conversion to the clk_hw API
  - definitions and fixes of exynos5420 SoC audio subsystem
    related clocks
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Merge tag 'clk-v4.13-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk into clk-next

Pull samsung clk driver updates from Sylwester Nawrocki

 - conversion to the clk_hw API
 - definitions and fixes of exynos5420 SoC audio subsystem
   related clocks

* tag 'clk-v4.13-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/snawrocki/clk:
  clk: samsung: exynos542x: Add EPLL rate table
  clk: samsung: Add missing exynos5420 audio related clocks
  clk: samsung: Add enable/disable operation for PLL36XX clocks
  clk: samsung: s5pv210-audss: Convert to the new clk_hw API
  clk: samsung: exynos-clkout: Convert to the new clk_hw API
  clk: samsung: exynos-audss: Convert to the new clk_hw API
  clk: samsung: Convert common drivers to the new clk_hw API
  clk: samsung: Add local variable to match its purpose
  clk: samsung: Remove dead code
2017-06-14 10:36:30 -07:00