From: Heiko Stuebner <heiko@sntech.de>

Similar to muxes which already have a read-only flag there sometimes
exist dividers which should not be changed by the clock framework
but whose value still should be readable.

Therefore add a READ_ONLY flag similar to the mux-one to clk-divider
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
[changed flag bit to BIT(5) as suggested by Tomasz Figa]
Signed-off-by: NThomas Abraham <thomas.ab@samsung.com>
Acked-by: NTomasz Figa <t.figa@samsung.com>
Acked-by: NMax Schwarz <max.schwarz@online.de>
Tested-by: NMax Schwarz <max.schwarz@online.de>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Driver for the R8A7740's clocks that are too specific to be supported by a
generic driver.
Signed-off-by: NUlrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Initialize the XUSB-related clocks with appropriate parents and rates
for both Tegra114 and Tegra124.
Signed-off-by: NJim Lin <jilin@nvidia.com>
Signed-off-by: NAndrew Bresticker <abrestic@chromium.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Currently the Tegra1x4 clock init code hard-codes the mux setting
for xusb_hs_src and treats it as a fixed-factor clock.  It is,
however, a mux which can be parented by either xusb_ss_src/2 or
pll_u_60M.  Add the fixed-factor clock xusb_ss_div2 and put an
entry in periph_clks[] for the xusb_hs_src mux.
Signed-off-by: NAndrew Bresticker <abrestic@chromium.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The parent-to-index mapping for xusb_fs_src is incorrect.
Fix it by adding a mux table.
Signed-off-by: NJim Lin <jilin@nvidia.com>
Signed-off-by: NAndrew Bresticker <abrestic@chromium.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Enable hardware control of PLLE spread-spectrum, IDDQ, and enable
controls when enabling PLLE.  The hardware (e.g. XUSB) using PLLE
will use these controls for power-saving optimizations.
Signed-off-by: NJim Lin <jilin@nvidia.com>
Signed-off-by: NAndrew Bresticker <abrestic@chromium.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Add clk driver to support clock blocks found on the AXM55xx devices. The driver
provides clock implementations for three different types of clock devices on
the AXM55xx device: PLL clock, a clock divider and a clock mux.
Signed-off-by: NAnders Berg <anders.berg@lsi.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The MSTP[SC]R registers have clock stop bits, not clock enable bits. The
bit value should thus be inverted in the is_enabled() operation.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

This patch adds of_clk_get_by_clkspec() helper function, which does only
a struct clk lookup from the clock providers. It is used in the subsequent
patch where parsing of a clock from device tree and the lookup from
providers needed to be split.
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The IM-PD1 PrimeCells all have pclk assignments though this clock
cannot be controlled, and we need to provide this as a dummy
clock for the PL061 GPIO driver to probe, so let's assign it to
all the cells on the board.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

arm: Xilinx Zynq clk patches for v3.16

- Keep debug clocks in bootup state
- Fix email address in si570

Just fix missing ">" in the email.
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>

When consolidating the msm8660 GCC probe code I forgot to keep
around these temporary clock registrations. Put them back so the
clock tree is not entirely orphaned.

Fixes: 49fc825f (clk: qcom: Consolidate common probe code)
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The value written to PLLE_AUX was incorrect due to a wrong variable
being used. Without this fix SATA does not work.

Cc: stable@vger.kernel.org
Signed-off-by: NTuomas Tynkkynen <ttynkkynen@nvidia.com>
Tested-by: NMikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: NThierry Reding <treding@nvidia.com>
Tested-by: NThierry Reding <treding@nvidia.com>
Acked-by: NThierry Reding <treding@nvidia.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: improved changelog]

Remove the 'gpios' property from the documentation as this is something that the
current fixed clock driver does not handle.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The impd1 code on mach-integrator can be a loadable module,
so we have to export icst_clk_register, integrator_impd1_clk_init
and integrator_impd1_clk_exit.
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Merge tag 'clk-hisi-for-v3.16' of https://git.kernel.org/pub/scm/linux/kernel/git/hzhuang1/linux into clk-next-hisilicon

enable hix5hd2 clock

__clk_get_hw is supposed to be used by clk providers, not clk consumers.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Reviewed-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

clk mvebu changes for v3.16

 - orion5x: brand new driver

Add MSTP clock support for the r8a7779 SoC

The only change required appears to be to note a new
compatibility string in the bindings.

Cc: devicetree@vger.kernel.org
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The R8A7779 SoC has several clocks that are too custom to be supported in a
generic driver. Those clocks are all fixed rate clocks with multiplier and
divisor set according to boot mode configuration.

Based on work for R-Car Gen2 SoCs by Laurent Pinchart.

Cc: devicetree@vger.kernel.org
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

Merge tag 'socfpga-clk-update-for-v3.16' of git://git.rocketboards.org/linux-socfpga-next into clk-next-socfpga

Adds support getting the divider registers for the MAIN PLL that was once
thought to be hidden.

Improve the wording for the clock-indices binding documentation.
Also replace "empty nodes" by "empty strings", as reported before by Sergei
Shtylyov.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NSimon Horman <horms+renesas@verge.net.au>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

General:
  - Add parameter names to .round_rate() and .set_rate().

Documentation/clk.txt:
  - Add missing parameter for .set_rate(),
  - Add missing .debug_init().

include/linux/clk-provider.h:
  - Add parent rate documentation for .round_rate(),
  - Reorder documentation to match implementation order,
  - Add missing documentation for .init().
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

- Remove spaces in front of TABs,
- Correct indentation for some CLK_* flag descriptions.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

With the addition of clock-indices, we need to change the renesas
clock implementation to use these instead of the local definition
of "renesas,clock-indices".

Since this will break booting with older device trees, we add a
simple auto-detection of which properties are present.
Signed-off-by: NBen Dooks <ben.dooks@codethink.co.uk>
Acked-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: NWolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The C0(mpu_clk), C1(main_clk), and C2(dbg_base_clk) outputs from the main
PLL go through a pre-divider before coming into the system. These registers
were hidden for the CycloneV platform, but are now used for the ArriaV
platform.

This patch updates the clock driver to read the div-reg property for the
socfpga-periph-clk clocks. Also moves the div_mask define to clk.h for re-use.
Signed-off-by: NDinh Nguyen <dinguyen@altera.com>

Signed-off-by: NHaifeng Yan <haifeng.yan@linaro.org>
Signed-off-by: NZhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: NHaojian Zhuang <haojian.zhuang@linaro.org>

Add hisi_clk_register_gate register clk gate table
Signed-off-by: NZhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: NHaojian Zhuang <haojian.zhuang@linaro.org>

Platform hix5hd2 use mux table, so use clk_register_mux_table instead
Signed-off-by: NZhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: NHaojian Zhuang <haojian.zhuang@linaro.org>

HdG: add header exporting clk_sunxi_mmc_phase_control
Signed-off-by: NEmilio López <emilio@elopez.com.ar>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

This commit implements .determine_rate, so that our factor clocks can be
reparented when needed.
Signed-off-by: NEmilio López <emilio@elopez.com.ar>
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

* Remove CE2_SLEEP_CLK, doesn't exist on 8960 family SoCs
* Fix incorrect offset for PMIC_SSBI2_RESET
* Fix typo:
	SIC_TIC -> SPS_TIC_H
	SFAB_ADM0_M2_A_CLK -> SFAB_ADM0_M2_H_CLK
* Fix naming convention:
	SFAB_CFPB_S_HCLK -> SFAB_CFPB_S_H_CLK
	SATA_SRC_CLK -> SATA_CLK_SRC
Signed-off-by: NKumar Gala <galak@codeaurora.org>
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The APQ8064 and MSM8960 share a significant amount of clock data and
code between the two SoCs.  Rather than duplicating the data we just add
support for a unqiue APQ8064 clock table into the MSM8960 code.

For now add just enough clocks to get a basic serial port going on an
APQ8064 device.
Signed-off-by: NKumar Gala <galak@codeaurora.org>
Reviewed-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: trivial conflict due to missing ipq8064 support]

Most of the probe code is the same between all the different
clock controllers. Consolidate the code into a common.c file.
This makes changes to the common probe parts easier and reduces
chances for bugs.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

This simplifies error paths in drivers that use optional clocks
by allowing the NULL or error pointer to be passed
unconditionally.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

The same if-else statement exists four times to recalculate the
rate of a clock. Consolidate this logic into a single function to
save some lines.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>

We dereference clk->ops during clock registration so this check
for NULL ops can't possibly ever be true.
Signed-off-by: NStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: NMike Turquette <mturquette@linaro.org>