Current clock driver enables PLLA, cdev1 on Tegra20 and extern1 on
Tegra30 and above as a part of clocks init and there is no need to
have these audio clocks enabled by the clock driver.
extern1 is used as parent for clk_out_1 and clk_out_1 is dedicated
for audio mclk on Tegra30 and above Tegra platforms and these clocks
are taken care by ASoC driver.
So, this patch removes audio related clocks configuration from clock
init of Tegra20 and above.
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Current Tegra clock driver registers PMC clocks clk_out_1, clk_out_2,
clk_out_3 and 32KHz blink output in tegra_pmc_init() which does direct
PMC register access during clk_ops and these PMC register read and write
access will not happen when PMC is in secure mode.
Any direct PMC register access from non-secure world will not go
through.
All the PMC clocks are moved to Tegra PMC driver with PMC as a clock
provider.
This patch removes tegra_pmc_clk_init along with corresponding clk ids
from Tegra clock driver.
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The VDE parent won't be changed automatically to PLLC if bootloader
didn't do that for us, hence let's explicitly set the parent for
consistency.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Both Tegra20 and Tegra30 are initializing display's parent clock
incorrectly because PLLP is running at 216/408MHz while display rate is
set to 600MHz, but pre-setting the parent isn't needed at all because
display driver selects proper parent anyways.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
There is no need to re-configure PLLX if its configuration in unchanged
on return from suspend / cpuidle, this saves 300us if PLLX is already
enabled (common case for cpuidle).
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
A proper External Memory Controller clock rounding and parent selection
functionality is required by the EMC drivers, it is not available using
the generic clock implementation because only the Memory Controller driver
is aware of what clock rates are actually available for a particular
device. EMC drivers will have to register a Tegra-specific CLK-API
callback which will perform rounding of a requested rate. EMC clock users
won't be able to request EMC clock by getting -EPROBE_DEFER until EMC
driver is probed and the callback is set up.
The functionality is somewhat similar to the clk-emc.c which serves
Tegra124+ SoCs. The later HW generations support more parent clock sources
and the HW configuration / integration with the EMC drivers differs a tad
from the older gens, hence it's not really worth to try to squash
everything into a single source file.
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms and conditions of the gnu general public license
version 2 as published by the free software foundation this program
is distributed in the hope it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not see http www gnu org
licenses
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 228 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528171438.107155473@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ensure that direct PLLM sourcing is turned off for EMC as we don't support
that configuration in the clk driver.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Kernel should never gate the EMC clock as it causes immediate lockup, so
removing clk-gate functionality doesn't affect anything. Turning EMC clk
gate into divider allows to implement glitch-less EMC scaling, avoiding
reparenting to a backup clock.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
CDEV1 and CDEV2 clocks are a bit special case, their parent clock is
created by the pinctrl driver. It should be possible for clk user to
request these clocks before pinctrl driver got probed and hence user will
get an orphaned clock. That might be undesirable because user may expect
parent clock to be enabled by the child, so let's return -EPROBE_DEFER
till parent clock appears.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Parents of CDEV1/2 clocks are determined by muxing of the corresponding
pins. Pinctrl driver now provides the CDEV1/2 clock muxes and hence
CDEV1/2 clocks could have correct parents. Set CDEV1/2 parents to the
corresponding muxes to fix the parents.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Marcel Ziswiler <marcel@ziswiler.com>
Tested-by: Marcel Ziswiler <marcel@ziswiler.com>
Tested-by: Marc Dietrich <marvin24@gmx.de>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
CDEV1/CDEV2 clocks could have corresponding oscillator clock divider as
a parent. Add these dividers in order to be able to provide that parent
option.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Marcel Ziswiler <marcel@ziswiler.com>
Tested-by: Marcel Ziswiler <marcel@ziswiler.com>
Tested-by: Marc Dietrich <marvin24@gmx.de>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Currently VDE clock rate is determined by clock config left from
bootloader, let's not rely on it and explicitly specify the clock
rate in the CCF driver.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
PLL_C_OUT_1 can't produce 216 MHz defined in the init_table. Let's
set it to 240 MHz and explicitly specify HCLK rate for consistency.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Machine dies if HCLK, SCLK or EMC is disabled. Hence mark these clocks
as critical.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: <stable@vger.kernel.org> # v4.16
Signed-off-by: Thierry Reding <treding@nvidia.com>
AHB DMA is a running on 1/2 of SCLK rate, APB DMA on 1/4. Increasing SCLK
rate results in an increased DMA transfer rate.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The APBDMA clock is defined in the common clock gates table that is used
by Tegra30+. Tegra20 can use it too, let's remove the custom definition
and use the common one.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
AHB DMA engine presents on Tegra20/30. Add missing clock entries, so that
driver for the AHB DMA controller could be implemented.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Instead of open-coding the same pattern repeatedly, reuse the newly
introduced tegra_clk_register_periph_data() helper that will unpack
the initialization structure.
Signed-off-by: Thierry Reding <treding@nvidia.com>
This patch fix spelling typos in printk from various part
of the codes.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This flag is a no-op now. Remove usage of the flag.
Acked-by: Rhyland Klein <rklein@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This removes the conversion from pdiv to hw, which is already taken
care of by _get_table_rate before this code is run. This avoids
incorrectly converting pdiv to hw twice and getting the wrong hw value.
Also set the input_rate in the freq cfg in _calc_dynamic_ramp_rate while
setting all the other fields.
In order to prevent regressions on earlier SoC generations, all of the
frequency tables need to be updated so that they contain the actual
divider values. If they contain hardware values these would be converted
to hardware values again, yielding the wrong value.
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
[treding@nvidia.com: fix regressions on earlier SoC generations]
Signed-off-by: Thierry Reding <treding@nvidia.com>
SoC specific drivers should define the appropriate flags for each
PLL rather than relying on the registration functions to automatically
set flags on their behalf. This will properly allow for changes between
SoC generations where flags might be different and allow sharing the
same logic functions.
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Use unsigned int for loop variables that can never become negative and
remove a couple of gratuitous blank lines. Also use single spaces around
operators and use a single space instead of a tab to separate comments
from code.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Clock provider drivers generally shouldn't include clk.h because
it's the consumer API. Only include clk.h in files that are using
it. Also add in a clkdev.h include that was missing in a file
using clkdev APIs.
Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
The memory controller clock runs either at half or the same frequency as
the EMC clock.
Reviewed-By: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add clocks required for accessing fuses on Tegra20.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
The "pcie_xclk" clock is not actually a clock at all, but rather a reset
domain. Now that the custom Tegra module reset API has been removed, we
can remove the definition of any "clocks" that existed solely to support
it.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com>
The Tegra CAR module implements both a clock and reset controller. So
far, the driver exposes the clock feature via the common clock API and
the reset feature using a custom API. This patch adds an implementation
of the common reset framework API (include/linux/reset*.h). The legacy
reset implementation will be removed once all drivers have been
converted.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com>
Introduce a new file for peripheral clocks common between several Tegra
SoCs and move Tegra114 to this new infrastructure. Also PLLP and the PLLP_OUT
clocks will be initialized here.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Move some fields related to the PLL HW description to the tegra_clk_pll_params.
This allows some PLL code to be moved to common files later.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
This patch makes periph_clk_enb_refcnt a global array, dynamically allocated
at boottime. It simplifies the macros somewhat and allows clocks common to
several Tegra SoCs to be defined in a separate files. Also the clks array
becomes global and dynamically allocated which allows the DT registration to
be moved to a generic funcion.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
This patch determines the register bank for clock enable/disable and reset
based on the clock ID instead of hardcoding it in the tables describing the
clocks. This results in less data to be maintained in the tables, making the
code easier to understand. The full benefit of the change will be realized once
also other clocktypes will be table based.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Add a CLK_SET_RATE_NO_REPARENT clock flag, which will prevent muxes
being reparented during clk_set_rate.
To avoid breaking existing platforms, all callers of clk_register_mux()
are adjusted to pass the new flag. Platform maintainers are encouraged
to remove the flag if they wish to allow mux reparenting on set_rate.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Chao Xie <xiechao.mail@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Emilio López" <emilio@elopez.com.ar>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Peter De Schrijver <pdeschrijver@nvidia.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Andrew Chew <achew@nvidia.com>
Cc: Doug Anderson <dianders@chromium.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Paul Walmsley <pwalmsley@nvidia.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: spear-devel@list.st.com
Cc: linux-tegra@vger.kernel.org
Tested-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Acked-by: Stephen Warren <swarren@nvidia.com> [tegra]
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> [sunxi]
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com> [Zynq]
Signed-off-by: Mike Turquette <mturquette@linaro.org>
__initdata should be placed between the variable name and equal
sign for the variable to be placed in the intended section.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Use common of_clk_init() function for clocks initialization.
Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
AC97 controller clock is hardwired to pll_a_out0.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
The USB clocks are just clock gates, so no need to set a specific clock.
In fact trying to set a specific clock is just a NOP if the requested
clockrate is the same as those of the parent (clk_m) or will trigger a
WARN_ON() if rates don't match up.
As we are not setting a specific rate, nor activating the clocks at
init, there is no point in keeping the the usb entries in the clock init
table.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Prashant Gaikwad <pgaikwad@nvidia.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This is a rather large set of patches for device drivers that for one
reason or another the subsystem maintainer preferred to get merged
through the arm-soc tree. There are both new drivers as well as
existing drivers that are getting converted from platform-specific
code into standalone drivers using the appropriate subsystem
specific interfaces.
In particular, we can now have pinctrl, clk, clksource and irqchip
drivers in one file per driver, without the need to call into
platform specific interface, or to get called from platform specific
code, as long as all information about the hardware is provided
through a device tree.
Most of the drivers we touch this time are for clocksource. Since
now most of them are part of drivers/clocksource, I expect that we
won't have to touch these again from arm-soc and can let the
clocksource maintainers take care of these in the future.
Another larger part of this series is specific to the exynos platform,
which is seeing some significant effort in upstreaming and
modernization of its device drivers this time around, which
unfortunately is also the cause for the churn and a lot of the
merge conflicts.
There is one new subsystem that gets merged as part of this series:
the reset controller interface, which is a very simple interface
for taking devices on the SoC out of reset or back into reset.
Patches to use this interface on i.MX follow later in this merge
window, and we are going to have other platforms (at least tegra
and sirf) get converted in 3.11. This will let us get rid of
platform specific callbacks in a number of platform independent
device drivers.
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Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver changes from Olof Johansson:
"This is a rather large set of patches for device drivers that for one
reason or another the subsystem maintainer preferred to get merged
through the arm-soc tree. There are both new drivers as well as
existing drivers that are getting converted from platform-specific
code into standalone drivers using the appropriate subsystem specific
interfaces.
In particular, we can now have pinctrl, clk, clksource and irqchip
drivers in one file per driver, without the need to call into platform
specific interface, or to get called from platform specific code, as
long as all information about the hardware is provided through a
device tree.
Most of the drivers we touch this time are for clocksource. Since now
most of them are part of drivers/clocksource, I expect that we won't
have to touch these again from arm-soc and can let the clocksource
maintainers take care of these in the future.
Another larger part of this series is specific to the exynos platform,
which is seeing some significant effort in upstreaming and
modernization of its device drivers this time around, which
unfortunately is also the cause for the churn and a lot of the merge
conflicts.
There is one new subsystem that gets merged as part of this series:
the reset controller interface, which is a very simple interface for
taking devices on the SoC out of reset or back into reset. Patches to
use this interface on i.MX follow later in this merge window, and we
are going to have other platforms (at least tegra and sirf) get
converted in 3.11. This will let us get rid of platform specific
callbacks in a number of platform independent device drivers."
* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (256 commits)
irqchip: s3c24xx: add missing __init annotations
ARM: dts: Disable the RTC by default on exynos5
clk: exynos5250: Fix parent clock for sclk_mmc{0,1,2,3}
ARM: exynos: restore mach/regs-clock.h for exynos5
clocksource: exynos_mct: fix build error on non-DT
pinctrl: vt8500: wmt: Fix checking return value of pinctrl_register()
irqchip: vt8500: Convert arch-vt8500 to new irqchip infrastructure
reset: NULL deref on allocation failure
reset: Add reset controller API
dt: describe base reset signal binding
ARM: EXYNOS: Add arm-pmu DT binding for exynos421x
ARM: EXYNOS: Add arm-pmu DT binding for exynos5250
ARM: EXYNOS: Enable PMUs for exynos4
irqchip: exynos-combiner: Correct combined IRQs for exynos4
irqchip: exynos-combiner: Add set_irq_affinity function for combiner_irq
ARM: EXYNOS: fix compilation error introduced due to common clock migration
clk: exynos5250: Fix divider values for sclk_mmc{0,1,2,3}
clk: exynos4: export clocks required for fimc-is
clk: samsung: Fix compilation error
clk: tegra: fix enum tegra114_clk to match binding
...
Here is a collection of fixes (and some intermixed cleanups) that were
considered less important and thus not included in the later parts of
the 3.9-rc cycle.
It's a bit all over the map, contents wise. A series of ux500 fixes
and cleanups, a bunch of various fixes for OMAP and tegra, and some for
Freescale i.MX and even Qualcomm MSM.
Note that there's also a patch on this branch to globally turn off
-Wmaybe-uninitialized when building with -Os. It's been posted several
times by Arnd and no dissent was raised, but nobody seemed interested
to pick it up. So here it is, as the topmost patch.
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Merge tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC non-critical fixes from Olof Johansson:
"Here is a collection of fixes (and some intermixed cleanups) that were
considered less important and thus not included in the later parts of
the 3.9-rc cycle.
It's a bit all over the map, contents wise. A series of ux500 fixes
and cleanups, a bunch of various fixes for OMAP and tegra, and some
for Freescale i.MX and even Qualcomm MSM.
Note that there's also a patch on this branch to globally turn off
-Wmaybe-uninitialized when building with -Os. It's been posted
several times by Arnd and no dissent was raised, but nobody seemed
interested to pick it up. So here it is, as the topmost patch."
* tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (70 commits)
Turn off -Wmaybe-uninitialized when building with -Os
ARM: orion5x: include linux/cpu.h
ARM: tegra: call cpu_do_idle from C code
ARM: u300: fix ages old copy/paste bug
ARM: OMAP2+: add dependencies on ARCH_MULTI_V6/V7
ARM: tegra: solve adr range issue with THUMB2_KERNEL enabled
ARM: tegra: fix relocation truncated error when THUMB2_KERNEL enabled
ARM: tegra: fix build error when THUMB2_KERNEL enabled
ARM: msm: Fix uncompess.h tx underrun check
ARM: vexpress: Remove A9 PMU compatible values for non-A9 platforms
ARM: cpuimx27 and mbimx27: prepend CONFIG_ to Kconfig macro
ARM: OMAP2+: fix typo "CONFIG_BRIDGE_DVFS"
ARM: OMAP1: remove "config MACH_OMAP_HTCWIZARD"
ARM: mach-imx: mach-imx6q: Fix sparse warnings
ARM: mach-imx: src: Include "common.h
ARM: mach-imx: gpc: Include "common.h"
ARM: mach-imx: avic: Staticize *avic_base
ARM: mach-imx: tzic: Staticize *tzic_base
ARM: mach-imx: clk: Include "clk.h"
ARM: mach-imx: clk-busy: Staticize clk_busy_mux_ops
...
This branch contains a variety of small build and run-time fixes that
weren't important enough for 3.9.
* Enable CPU errata WARs in secondary reset handler as a preparation
for multi-platform support, and a related fix.
* Don't touch DBLGAR in reset/resume handlers, so enable the code to
run on A15 cores.
* Minor build fixes.
* A fix to the Tegra clock driver.
* Some error-handling fixes.
This branch is based on the previous fixes-for-mmc pull request.
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Merge tag 'tegra-for-3.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/fixes-non-critical
From Stephen Warren <swarren@wwwdotorg.org>:
ARM: tegra: minor fixes
This branch contains a variety of small build and run-time fixes that
weren't important enough for 3.9.
* Enable CPU errata WARs in secondary reset handler as a preparation
for multi-platform support, and a related fix.
* Don't touch DBLGAR in reset/resume handlers, so enable the code to
run on A15 cores.
* Minor build fixes.
* A fix to the Tegra clock driver.
* Some error-handling fixes.
This branch is based on the previous fixes-for-mmc pull request.
* tag 'tegra-for-3.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
ARM: tegra: powergate: Don't error out if new state == old state
ARM: tegra: Export tegra_powergate_sequence_power_up()
memory: tegra30: Fix build error w/o PM
ARM: tegra: fix ignored return value of regulator_enable
ARM: tegra: fix the logical detection of power on sequence of warm boot CPUs
ARM: tegra: Fix unchecked return value
ARM: tegra: don't unlock MMIO access to DBGLAR
clk: tegra: No 7.1 super clk dividers on Tegra20
ARM: tegra: remove save/restore of CPU diag register
ARM: tegra: add CPU errata WARs to Tegra reset handler
ARM: dts: tegra: fix the activate polarity of cd-gpio in mmc host
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
We will need some tegra peripheral clocks with the CLK_IGNORE_UNUSED flag,
most notably mselect, which is a bridge between AXI and most peripherals.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
PLLC2 and PLLC3 on Tegra114 have separate phaselock and frequencylock bits.
So switch to a lock mask to be able to test both at the same time.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Some PLLs in Tegra114 don't use a power of 2 mapping for the post divider.
Introduce a table based approach and switch PLLU to it.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Refactor the PLL programming code to make it useable by the new PLL types
introduced by Tegra114.
The following changes were done:
* Split programming the PLL into updating m,n,p and updating cpcon
* Move locking from _update_pll_cpcon() to clk_pll_set_rate()
* Introduce _get_pll_mnp() helper
* Move check for identical m,n,p values to clk_pll_set_rate()
* struct tegra_clk_pll_freq_table will always contain the values as defined
by the hardware.
* Simplify the arguments to clk_pll_wait_for_lock()
* Split _tegra_clk_register_pll()
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
The Tegra clock driver is initialized during the ARM machine descriptor's
.init_irq() hook. It can't be initialized earlier, since dynamic memory
usage is required. It can't be initialized later, since the .init_timer()
hook needs the clocks initialized. However, at this time, udelay()
doesn't work.
The Tegra clock initialization table may enable some PLLs. Enabling a PLL
may require usage of udelay(). Hence, this can't happen right when the
clock driver is initialized.
To solve this, separate the clock driver initialization from the clock
table processing, so they can execute at separate times.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
