The patch enables spread spectrum clocking (SSC) for MPU and LCD PLLs.
As reported by the TI spruh73x/spruhl7x RM, SSC is only supported for
the DISP/LCD and MPU PLLs on am33xx/am43xx. SSC is not supported for
DDR, PER, and CORE PLLs.
Calculating the required values and setting the registers accordingly
was taken from the set_mpu_spreadspectrum routine contained in the
arch/arm/mach-omap2/am33xx/clock_am33xx.c file of the u-boot project.
In locked condition, DPLL output clock = CLKINP *[M/N]. In case of
SSC enabled, the reference manual explains that there is a restriction
of range of M values. Since the omap2_dpll_round_rate routine attempts
to select the minimum possible N, the value of M obtained is not
guaranteed to be within the range required. With the new "ti,min-div"
parameter it is possible to increase N and consequently M to satisfy the
constraint imposed by SSC.
Signed-off-by: Dario Binacchi <dariobin@libero.it>
Reviewed-by: Tero Kristo <kristo@kernel.org>
Link: https://lore.kernel.org/r/20210606202253.31649-6-dariobin@libero.it
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
PLLE has a hardware power sequencer logic which is a state machine
that can power on/off PLLE without any software intervention. The
sequencer has two inputs, one from XUSB UPHY PLL and the other from
SATA UPHY PLL. PLLE provides reference clock to XUSB and SATA UPHY
PLLs. When both of the downstream PLLs are powered-off, PLLE hardware
power sequencer will automatically power off PLLE for power saving.
XUSB and SATA UPHY PLLs also have their own hardware power sequencer
logic. XUSB UPHY PLL is shared between XUSB SuperSpeed ports and PCIE
controllers. The XUSB UPHY PLL hardware power sequencer has inputs
from XUSB and PCIE. When all of the XUSB SuperSpeed ports and PCIE
controllers are in low power state, XUSB UPHY PLL hardware power
sequencer automatically power off PLL and flags idle to PLLE hardware
power sequencer. Similar applies to SATA UPHY PLL.
PLLE hardware power sequencer has to be enabled after both downstream
sequencers are enabled.
This commit adds two helper functions:
1. tegra210_plle_hw_sequence_start() for XUSB PADCTL driver to enable
PLLE hardware sequencer at proper time.
2. tegra210_plle_hw_sequence_is_enabled() for XUSB PADCTL driver to
check whether PLLE hardware sequencer has been enabled or not.
Signed-off-by: JC Kuo <jckuo@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
clk drivers that dominate the diffstat because we add support for six SoCs from
that particular vendor. The other big change is the removal of various clk
drivers that are no longer used now that the kernel is dropping support for
those SoCs. Beyond that there's the usual non-critical fixes for existing
drivers and a good number of patches from Lee Jones that cleanup a bunch of W=1
enabled builds.
Removed Drivers:
- Remove efm32 clk driver
- Remove tango4 clk driver
- Remove zte zx clk driver
- Remove sirf prima2/atlast clk drivers
- Remove u300 clk driver
New Drivers:
- PLL support on MStar/SigmaStar ARMv7 SoCs
- CPU clks for Qualcomm SDX55
- GCC and RPMh clks for Qualcomm SC8180x and SC7280 SoCs
- GCC clks for Qualcomm SM8350
- GPU clks for Qualcomm SDM660/SDM630
Updates:
- Video clk fixups on Qualcomm SM8250
- Improvements for multimedia clks on Qualcomm MSM8998
- Fix many warnings with W=1 enabled builds under drivers/clk/
- Support crystal load capacitance for Versaclock VC5
- Add a "skip recall" DT binding for Silicon Labs' si570 to avoid glitches at boot
- Convert Xilinx VCU clk driver to a proper clk provider driver
- Expose Xilinx ZynqMP clk driver to more platforms
- Amlogic pll driver fixup
- Amlogic meson8b clock controller dt support clean up
- Remove mipi clk from the Amlogic axg clock controller
- New Rockchip rk3368 clock ids related to camera input
- Use pr_notice() instead of pr_warn() on i.MX6Q pre-boot ldb_di_clk reparenting
- A series from Liu Ying that adds some SCU clocks support for i.MX8qxp
DC0/MIPI-LVDS subsystems
- A series from Lucas Stach that adds PLL monitor clocks for i.MX8MQ, and
clkout1/2 support for i.MX8MM/MN
- Add I2c and Ethernet (RAVB) clocks on Renesas R-Car V3U
- Add timer (TMU) clocks on most Renesas R-Car Gen3 SoCs
- Add video-related (FCPVD/VSPD/VSPX), watchdog (RWDT), serial
(HSCIF), pincontrol/GPIO (PFC/GPIO), SPI (MSIOF), SDHI, and DMA
(SYS-DMAC) clocks on Renesas R-Car V3U
- Add support for the USB 2.0 clock selector on Renesas RZ/G2 SoCs
- Allwinner H616 SoC clk support
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This is all driver updates, the majority of which is a bunch of new
Qualcomm clk drivers that dominate the diffstat because we add support
for six SoCs from that particular vendor.
The other big change is the removal of various clk drivers that are no
longer used now that the kernel is dropping support for those SoCs.
Beyond that there's the usual non-critical fixes for existing drivers
and a good number of patches from Lee Jones that cleanup a bunch of
W=1 enabled builds.
Removed Drivers:
- Remove efm32 clk driver
- Remove tango4 clk driver
- Remove zte zx clk driver
- Remove sirf prima2/atlast clk drivers
- Remove u300 clk driver
New Drivers:
- PLL support on MStar/SigmaStar ARMv7 SoCs
- CPU clks for Qualcomm SDX55
- GCC and RPMh clks for Qualcomm SC8180x and SC7280 SoCs
- GCC clks for Qualcomm SM8350
- GPU clks for Qualcomm SDM660/SDM630
Updates:
- Video clk fixups on Qualcomm SM8250
- Improvements for multimedia clks on Qualcomm MSM8998
- Fix many warnings with W=1 enabled builds under drivers/clk/
- Support crystal load capacitance for Versaclock VC5
- Add a "skip recall" DT binding for Silicon Labs' si570 to avoid
glitches at boot
- Convert Xilinx VCU clk driver to a proper clk provider driver
- Expose Xilinx ZynqMP clk driver to more platforms
- Amlogic pll driver fixup
- Amlogic meson8b clock controller dt support clean up
- Remove mipi clk from the Amlogic axg clock controller
- New Rockchip rk3368 clock ids related to camera input
- Use pr_notice() instead of pr_warn() on i.MX6Q pre-boot ldb_di_clk
reparenting
- A series from Liu Ying that adds some SCU clocks support for
i.MX8qxp DC0/MIPI-LVDS subsystems
- A series from Lucas Stach that adds PLL monitor clocks for i.MX8MQ,
and clkout1/2 support for i.MX8MM/MN
- Add I2c and Ethernet (RAVB) clocks on Renesas R-Car V3U
- Add timer (TMU) clocks on most Renesas R-Car Gen3 SoCs
- Add video-related (FCPVD/VSPD/VSPX), watchdog (RWDT), serial
(HSCIF), pincontrol/GPIO (PFC/GPIO), SPI (MSIOF), SDHI, and DMA
(SYS-DMAC) clocks on Renesas R-Car V3U
- Add support for the USB 2.0 clock selector on Renesas RZ/G2 SoCs
- Allwinner H616 SoC clk support"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (171 commits)
clk: mstar: msc313-mpll: Fix format specifier
clk: mstar: Allow MStar clk drivers to be compile tested
clk: qoriq: use macros to generate pll_mask
clk: qcom: Add Global Clock controller (GCC) driver for SC7280
dt-bindings: clock: Add SC7280 GCC clock binding
clk: qcom: rpmh: Add support for RPMH clocks on SC7280
dt-bindings: clock: Add RPMHCC bindings for SC7280
clk: qcom: gcc-sm8350: add gdsc
dt-bindings: clock: Add QCOM SDM630 and SDM660 graphics clock bindings
clk: qcom: Add SDM660 GPU Clock Controller (GPUCC) driver
clk: qcom: mmcc-msm8996: Migrate gfx3d clock to clk_rcg2_gfx3d
clk: qcom: rcg2: Stop hardcoding gfx3d pingpong parent numbers
dt-bindings: clock: Add support for the SDM630 and SDM660 mmcc
clk: qcom: Add SDM660 Multimedia Clock Controller (MMCC) driver
clk: qcom: gcc-sdm660: Mark GPU CFG AHB clock as critical
clk: qcom: gcc-sdm660: Mark MMSS NoC CFG AHB clock as critical
clk: qcom: gpucc-msm8998: Allow fabia gpupll0 rate setting
clk: qcom: gpucc-msm8998: Add resets, cxc, fix flags on gpu_gx_gdsc
clk: qcom: gdsc: Implement NO_RET_PERIPH flag
clk: mstar: MStar/SigmaStar MPLL driver
...
Fixes the following W=1 kernel build warning(s):
drivers/clk/spear/spear1310_clock.c:385:13: warning: no previous prototype for ‘spear1310_clk_init’ [-Wmissing-prototypes]
drivers/clk/spear/spear1340_clock.c:442:13: warning: no previous prototype for ‘spear1340_clk_init’ [-Wmissing-prototypes]
Cc: Viresh Kumar <vireshk@kernel.org>
Cc: Shiraz Hashim <shiraz.linux.kernel@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210126124540.3320214-20-lee.jones@linaro.org
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Fixes the following W=1 kernel build warning(s):
drivers/clk/imx/clk-imx6sl.c:156:6: warning: no previous prototype for ‘imx6sl_set_wait_clk’ [-Wmissing-prototypes]
Cc: Russell King <linux@armlinux.org.uk>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Add modularization support to the Tegra124 EMC driver, which now can be
compiled as a loadable kernel module.
Note that EMC clock must be registered at clk-init time, otherwise PLLM
will be disabled as unused clock at boot time if EMC driver is compiled
as a module. Hence add a prepare/complete callbacks. similarly to what is
done for the Tegra20/30 EMC drivers.
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20201228154920.18846-2-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
So far all Exynos, S3C64xx and S5Pv210 clock units were selected by
respective SOC/ARCH Kconfig option. On a kernel built for selected
SoCs, this allowed to build only limited set of matching clock drivers.
However compile testing was not possible in such case as Makefile object
depends on SOC/ARCH option.
Add separate Kconfig options for each of them to be able to compile
test.
Link: https://lore.kernel.org/r/20201119164509.754851-1-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
The s3c2410_common_clk_init() and others are defined and used by the
clk-s3c24xx driver and also used in the mach-s3c24xx machine code. Move
the declaration to a header to fix W=1 build warnings:
drivers/clk/samsung/clk-s3c2410.c:320:13: warning: no previous prototype for 's3c2410_common_clk_init' [-Wmissing-prototypes]
320 | void __init s3c2410_common_clk_init(struct device_node *np, unsigned long xti_f,
drivers/clk/samsung/clk-s3c2412.c:205:13: warning: no previous prototype for 's3c2412_common_clk_init' [-Wmissing-prototypes]
205 | void __init s3c2412_common_clk_init(struct device_node *np, unsigned long xti_f,
drivers/clk/samsung/clk-s3c2443.c:341:13: warning: no previous prototype for 's3c2443_common_clk_init' [-Wmissing-prototypes]
341 | void __init s3c2443_common_clk_init(struct device_node *np, unsigned long xti_f,
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
The s3c64xx_clk_init() is defined and used by the clk-s3c64xx driver and
also used in the mach-s3c64xx machine code. Move the declaration to a
header to fix W=1 build warning:
drivers/clk/samsung/clk-s3c64xx.c:391:13: warning: no previous prototype for 's3c64xx_clk_init' [-Wmissing-prototypes]
391 | void __init s3c64xx_clk_init(struct device_node *np, unsigned long xtal_f,
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Add UTMI support for SAMA7G5. SAMA7G5's UTMI control is done via
XTALF register. Values written at bits 2..0 in this register
correspond to the on board crystal oscillator frequency.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/1595403506-8209-18-git-send-email-claudiu.beznea@microchip.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add master clock support (MCK1..4) for SAMA7G5. SAMA7G5's PMC has
multiple master clocks feeding different subsystems. One of them
feeds image subsystem and is changeable based on image subsystem
needs.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/1595403506-8209-13-git-send-email-claudiu.beznea@microchip.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The EMC clock needs to carefully coordinate with the EMC controller
programming to make sure external memory can be properly clocked. Do so
by hooking up the EMC clock with an EMC provider that will specify which
rates are supported by the EMC and provide a callback to use for setting
the clock rate at the EMC.
Based on work by Peter De Schrijver <pdeschrijver@nvidia.com>.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Export functions to allow accessing the CAR register required by EMC
clock scaling. These functions will be used to access the CAR register
as part of the scaling sequence.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Move SAM9X60's PLL register offsets to PMC header so that the
definitions would also be available from arch/arm/mach-at91/pm_suspend.S.
This is necessary to disable/enable PLLA for SAM9X60 on suspend/resume.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1579522208-19523-7-git-send-email-claudiu.beznea@microchip.com
This will be used to differentiate b/w different PLLs settings to be
applied in the final/first steps of the suspend/resume process by doing
PLL specific configurations.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1579522208-19523-5-git-send-email-claudiu.beznea@microchip.com
- Make gpio gate clks propagate rate setting up to parent
* clk-gpio-flags:
clk: clk-gpio: propagate rate change to parent
* clk-tegra: (23 commits)
clk: tegra: Use match_string() helper to simplify the code
clk: tegra: Fix build error without CONFIG_PM_SLEEP
clk: tegra: Add missing stubs for the case of !CONFIG_PM_SLEEP
clk: tegra: Optimize PLLX restore on Tegra20/30
clk: tegra: Add suspend and resume support on Tegra210
clk: tegra: Share clk and rst register defines with Tegra clock driver
clk: tegra: Use fence_udelay() during PLLU init
clk: tegra: clk-dfll: Add suspend and resume support
clk: tegra: clk-super: Add restore-context support
clk: tegra: clk-super: Fix to enable PLLP branches to CPU
clk: tegra: periph: Add restore_context support
clk: tegra: Support for OSC context save and restore
clk: tegra: pll: Save and restore pll context
clk: tegra: pllout: Save and restore pllout context
clk: tegra: divider: Save and restore divider rate
clk: tegra: Reimplement SOR clocks on Tegra210
clk: tegra: Reimplement SOR clock on Tegra124
clk: tegra: Rename sor0_lvds to sor0_out
clk: tegra: Move SOR0 implementation to Tegra124
clk: tegra: Remove last remains of TEGRA210_CLK_SOR1_SRC
...
* clk-rockchip:
clk: rockchip: protect the pclk_usb_grf as critical on px30
clk: rockchip: add video-related niu clocks as critical on px30
clk: rockchip: move px30 critical clocks to correct clock controller
clk: rockchip: Add div50 clocks for px30 sdmmc, emmc, sdio and nandc
clk: rockchip: Add div50 clock-ids for sdmmc on px30 and nandc
clk: rockchip: make clk_half_divider_ops static
* clk-sprd:
clk: sprd: Use IS_ERR() to validate the return value of syscon_regmap_lookup_by_phandle()
* clk-pxa:
clk: pxa: fix one of the pxa RTC clocks
The new CPUIDLE driver uses the Tegra's CLK API and that driver won't
strictly depend on CONFIG_PM_SLEEP, hence add the required stubs in
order to allow compiling of the new driver with the CONFIG_PM_SLEEP=n.
Signed-off-by: Dmitry Osipenko <digetx@gmail.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>
Standby status is provided for certain clkctrl clocks to see if the
given module has entered standby or not. This is mostly needed by
remoteproc code to see if the remoteproc has entered standby and the clock
can be turned off safely.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
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extracted by the scancode license scanner the SPDX license identifier
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141900.642774971@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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
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fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
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extracted by the scancode license scanner the SPDX license identifier
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Reviewed-by: Steve Winslow <swinslow@gmail.com>
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Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
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Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 3029 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add common library code for the Analog Bits Wide-Range PLL (WRPLL) IP
block, as implemented in TSMC CLN28HPC.
There is no bus interface or register target associated with this PLL.
This library is intended to be used by drivers for IP blocks that
expose registers connected to the PLL configuration and status
signals.
Based on code originally written by Wesley Terpstra
<wesley@sifive.com>:
999529edf5
This version incorporates several changes requested by Stephen
Boyd <sboyd@kernel.org>.
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Wesley Terpstra <wesley@sifive.com>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Megan Wachs <megan@sifive.com>
Cc: linux-clk@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
[sboyd@kernel.org: Fix some const issues]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The sam9x60 cpu clock is located at a different offset but is otherwise
similar to the master clock.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The PCR register layout for GCLKCSS is changing for the future SoCs, allow
configuring it.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The PCR register actually changed layout for each SoC. By chance, this
didn't have impact on sama5d[2-4] support but since sama5d3, PID is seven
bits wide and sama5d4 and sama5d2 don't have DIV.
For the DT backward compatibility, keep the layout as is.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
RNG and TIMER12 are reserved for secure side usage only on HS devices,
so disable their clkctrl clocks on HS SoCs also.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
There is one instance outside the TI clock driver that needs the info
whether a clock is an OMAP HW clock or not. Thus, move the function
declaration into the public header.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add ULP1 support for SAM9X60. In pm_suspend.S enable RC oscillator in
PMC if it is not enabled. At resume the state before suspend is
restored.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Multiple users might deny autoidle on a clock. So we should have some
counting here, also according to the comment in _setup_iclk_autoidle().
Also setting autoidle regs is not atomic, so there is another reason
for locking.
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Acked-by: Tony Lindgren <tony@atomide.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
* clk-ti:
clk: ti: Prepare for remove of OF node name
clk: Clean up suspend/resume coding style
clk: ti: Add functions to save/restore clk context
clk: clk: Add clk_gate_restore_context function
clk: Add functions to save/restore clock context en-masse
clk: ti: dra7: add new clkctrl data
clk: ti: dra7xx: rename existing clkctrl data as compat data
clk: ti: am43xx: add new clkctrl data for am43xx
clk: ti: am43xx: rename existing clkctrl data as compat data
clk: ti: am33xx: add new clkctrl data for am33xx
clk: ti: am33xx: rename existing clkctrl data as compat data
clk: ti: clkctrl: replace dashes from clkdm name with underscore
clk: ti: clkctrl: support multiple clkctrl nodes under a cm node
dt-bindings: clock: dra7xx: add clkctrl indices for new data layout
dt-bindings: clock: am43xx: add clkctrl indices for new data layout
dt-bindings: clock: am33xx: add clkctrl indices for new data layout
Currently, only one clkctrl node can be added under a specific CM node
due to limitation with the implementation. Modify the code to pick-up
clockdomain name from the clkctrl node instead of CM node if provided.
Also, add a new flag to the TI clock driver so that both modes can
be supported simultaneously.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
This patch updates license to use SPDX-License-Identifier
instead of verbose license text.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
[rebased against clk-spdx]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
In the ULP1 mode, in order to achieve the lowest power consumption
with the system in retention mode and be able to resume on the wake
up events, all the clocks are shut off, inclusive the embedded 12MHz
RC oscillator, and the number of wake up sources is limited as well.
When the wake up event is asserted, the embedded 12MHz RC oscillator
restarts automatically.
The ULP1 (Ultra Low-power mode 1) is introduced by SAMA5D2.
The previous size of pm_suspend.o was 2148 bytes. With the addition of
ULP1 mode the new size of pm_suspend.o raised at 2456 bytes.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
[claudiu.beznea@microchip.com: aligned with 4.18-rc1]
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This fixes linker errors due to undefined symbols when one or more of
the TI DaVinci SoCs is not enabled in the kernel config.
Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20180525181150.17873-10-david@lechnology.com
On some davinci SoCs, we need to register the PSC clocks during early
boot because they are needed for clocksource/clockevent. These changes
allow for dev == NULL because in this case, we won't have a platform
device for the clocks.
Signed-off-by: David Lechner <david@lechnology.com>
Reviewed-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
Link: lkml.kernel.org/r/20180525181150.17873-9-david@lechnology.com
Stephen Boyd