| Commit message (Collapse) | Author | Age | Files | Lines |
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System clk provided in ST soc can be set to:
48Mhz, non-spread
25Mhz, spread
To get accurate rate, we need it to set it at non-spread
option which is 48Mhz.
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Fixes: 421bf6a1f061 ("clk: x86: Add ST oscout platform clock")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct foo {
int stuff;
void *entry[];
};
instance = kzalloc(sizeof(struct foo) + sizeof(void *) * count,
GFP_KERNEL);
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL);
Notice that, currently, there is a bug during the allocation:
sizeof(npcm7xx_clk_data) should be sizeof(*npcm7xx_clk_data)
Fix this bug by using struct_size() in kzalloc()
This issue was detected with the help of Coccinelle.
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Avi Fishman <avifishman70@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"Some of the larger changes this merge window:
- Removal of drivers for Exynos5440, a Samsung SoC that never saw
widespread use.
- Uniphier support for USB3 and SPI reset handling
- Syste control and SRAM drivers and bindings for Allwinner platforms
- Qualcomm AOSS (Always-on subsystem) reset controller drivers
- Raspberry Pi hwmon driver for voltage
- Mediatek pwrap (pmic) support for MT6797 SoC"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (52 commits)
drivers/firmware: psci_checker: stash and use topology_core_cpumask for hotplug tests
soc: fsl: cleanup Kconfig menu
soc: fsl: dpio: Convert DPIO documentation to .rst
staging: fsl-mc: Remove remaining files
staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl
staging: fsl-dpaa2: eth: move generic FD defines to DPIO
soc: fsl: qe: gpio: Add qe_gpio_set_multiple
usb: host: exynos: Remove support for Exynos5440
clk: samsung: Remove support for Exynos5440
soc: sunxi: Add the A13, A23 and H3 system control compatibles
reset: uniphier: add reset control support for SPI
cpufreq: exynos: Remove support for Exynos5440
ata: ahci-platform: Remove support for Exynos5440
soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata
soc: mediatek: pwrap: add mt6351 driver for mt6797 SoCs
soc: mediatek: pwrap: add pwrap driver for mt6797 SoCs
soc: mediatek: pwrap: fix cipher init setting error
dt-bindings: pwrap: mediatek: add pwrap support for MT6797
reset: uniphier: add USB3 core reset control
dt-bindings: reset: uniphier: add USB3 core reset support
...
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https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/drivers
Exynos5440 drivers removal
The Exynos5440 (quad-core A15 with GMAC, PCIe, SATA) was targeting
server platforms but it did not make it to the market really. There are
no development boards with it and probably there are no real products
neither. The development for Exynos5440 ended in 2013 and since then
the platform is in maintenance mode.
Removing Exynos5440 makes our life slightly easier: less maintenance,
smaller code, reduced number of quirks, no need to preserve DTB
backward-compatibility.
The Device Tree sources and some of the drivers for Exynos5440 were
already removed. This removes remaining drivers.
* tag 'samsung-drivers-exynos5440-4.19' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
usb: host: exynos: Remove support for Exynos5440
clk: samsung: Remove support for Exynos5440
cpufreq: exynos: Remove support for Exynos5440
ata: ahci-platform: Remove support for Exynos5440
Signed-off-by: Olof Johansson <olof@lixom.net>
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The Exynos5440 is not actively developed, there are no development
boards available and probably there are no real products with it.
Remove wide-tree support for Exynos5440.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Sylwester Nawrocki <snawrocki@kernel.org>
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Add clkctrl data for the m_can clocks and register it within the
clkctrl driver
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
CC: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM 32-bit SoC platform updates from Olof Johansson:
"Most of the SoC updates in this cycle are cleanups and moves to more
modern infrastructure:
- Davinci was moved to common clock framework
- OMAP1-based Amstrad E3 "Superphone" saw a bunch of cleanups to the
keyboard interface (bitbanged AT keyboard via GPIO).
- Removal of some stale code for Renesas platforms
- Power management improvements for i.MX6LL"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (112 commits)
ARM: uniphier: select RESET_CONTROLLER
arm64: uniphier: select RESET_CONTROLLER
ARM: uniphier: remove empty Makefile
ARM: exynos: Clear global variable on init error path
ARM: exynos: Remove outdated maintainer information
ARM: shmobile: Always enable ARCH_TIMER on SoCs with A7 and/or A15
ARM: shmobile: r8a7779: hide unused r8a7779_platform_cpu_kill
soc: r9a06g032: don't build SMP files for non-SMP config
ARM: shmobile: Add the R9A06G032 SMP enabler driver
ARM: at91: pm: configure wakeup sources for ULP1 mode
ARM: at91: pm: add PMC fast startup registers defines
ARM: at91: pm: Add ULP1 mode support
ARM: at91: pm: Use ULP0 naming instead of slow clock
ARM: hisi: handle of_iomap and fix missing of_node_put
ARM: hisi: check of_iomap and fix missing of_node_put
ARM: hisi: fix error handling and missing of_node_put
ARM: mx5: Set the DBGEN bit in ARM_GPC register
ARM: imx51: Configure M4IF to avoid visual artifacts
ARM: imx: call imx6sx_cpuidle_init() conditionally for 6sll
ARM: imx: fix i.MX6SLL build
...
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We want to use the ti-aemif platform driver for da830-evm. To make it
work we need a lookup entry for the aemif clock.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: David Lechner <david@lechnology.com>
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We want to be able to get the clock both from the board file by its
con_id and from the aemif driver by dev_id.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: David Lechner <david@lechnology.com>
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We want to be able to get the clock both from the board file by its
con_id and from the aemif driver by dev_id.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: David Lechner <david@lechnology.com>
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We want to be able to get the clock both from the board file by its
con_id and from the aemif driver by dev_id.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: David Lechner <david@lechnology.com>
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Since commit a8e3923ab571 ("mtd: rawnand: davinci: don't acquire and
enable clock") we no longer acquire the aemif clock from the davinci
nand driver - we only do it from the ti-aemif driver. Remove the nand
entry from the psc lookup table.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: David Lechner <david@lechnology.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"The new and exciting feature this time around is in the clk core.
We've added duty cycle support to the clk API so that clk signal duty
cycle ratios can be adjusted while taking into account things like clk
dividers and clk tree hierarchy. So far only one SoC has implemented
support for this, but I expect there will be more to come in the
future.
Outside of the core, we have the usual pile of clk driver updates and
additions. The Amlogic meson driver got the most lines in the diffstat
this time around because it added support for a whole bunch of
hardware and duty cycle configuration. After that the Rockchip PX30,
Qualcomm SDM845, and Renesas SoC drivers fill in a majority of the
diff. We're left with the collection of non-critical fixes after that.
Overall it looks pretty quiet this time.
Core:
- Clk duty cycle support
- Proper CLK_SET_RATE_GATE support throughout the tree
New Drivers:
- Actions Semi Owl series S700 SoC clk driver
- Qualcomm SDM845 display clock controller
- i.MX6SX ocram_s clk support
- Uniphier NAND, USB3 PHY, and SPI clk support
- Qualcomm RPMh clk driver
- i.MX7D mailbox clk support
- Maxim 9485 Programmable Clock Generator
- expose 32 kHz PLL on PXA SoCs
- imx6sll GPIO clk gate support
- Atmel at91 I2S audio clk support
- SI544/SI514 clk on/off support
- i.MX6UL GPIO clock gates in CCM CCGR
- Renesas Crypto Engine clocks on R-Car H3
- Renesas clk support for the new RZ/N1D SoC
- Allwinner A64 display engine clock support
- support for Rockchip's PX30 SoC
- Amlogic Meson axg PCIe and audio clocks
- Amlogic Meson GEN CLK on gxbb, gxl and axg
Updates:
- remove an unused variable from Exynos4412 ISP driver
- fix a thinko bug in SCMI clk division logic
- add missing of_node_put()s in some i.MX clk drivers
- Tegra SDMMC clk jitter improvements with high speed signaling modes
- SPDX tagging for qcom and cs2000-cp drivers
- stop leaking con ids in __clk_put()
- fix a corner case in fixed factor clk probing where node is in DT
but parent clk is registered much later
- Marvell Armada 3700 clk_pm_cpu_get_parent() had an invalid return
value
- i.MX clk init arrays removed in place of CLK_IS_CRITICAL
- convert to CLK_IS_CRITICAL for i.MX51/53 driver
- fix Tegra BPMP driver oops when xlating a NULL clk
- proper default configuration for vic03 and vde clks on Tegra124
- mark Tegra memory controller clks as critical
- fix array bounds clamp in Tegra's emc determine_rate() op
- Ingenic i2s bit update and allow UDC clk to gate
- fix name of aspeed SDC clk define to have only one 'CLK'
- fix i.MX6QDL video clk parent
- critical clk markings for qcom SDM845
- fix Stratix10 mpu_free_clk and sdmmc_free_clk parents
- mark Rockchip's pclk_rkpwm_pmu as critical clock, due to it
supplying the pwm used to drive the logic supply of the rk3399
core"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (85 commits)
clk: rockchip: Add pclk_rkpwm_pmu to PMU critical clocks in rk3399
clk: cs2000-cp: convert to SPDX identifiers
clk: scmi: Fix the rounding of clock rate
clk: qcom: Add display clock controller driver for SDM845
clk: mvebu: armada-37xx-periph: Remove unused var num_parents
clk: samsung: Remove unused mout_user_aclk400_mcuisp_p4x12 variable
clk: actions: Add S700 SoC clock support
dt-bindings: clock: Add S700 support for Actions Semi Soc's
clk: actions: Add missing REGMAP_MMIO dependency
clk: uniphier: add clock frequency support for SPI
clk: uniphier: add more USB3 PHY clocks
clk: uniphier: add NAND 200MHz clock
clk: tegra: make sdmmc2 and sdmmc4 as sdmmc clocks
clk: tegra: Add sdmmc mux divider clock
clk: tegra: Refactor fractional divider calculation
clk: tegra: Fix includes required by fence_udelay()
clk: imx6sll: fix missing of_node_put()
clk: imx6ul: fix missing of_node_put()
clk: imx: add ocram_s clock for i.mx6sx
clk: mvebu: armada-37xx-periph: Fix wrong return value in get_parent
...
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'clk-qcom-dispcc-845', 'clk-scmi-round' and 'clk-cs2000-spdx' into clk-next
* clk-actions-s700:
: - Actions Semi Owl series S700 SoC clk driver
clk: actions: Add S700 SoC clock support
dt-bindings: clock: Add S700 support for Actions Semi Soc's
clk: actions: Add missing REGMAP_MMIO dependency
* clk-exynos-unused:
: - Remove an unused variable from Exynos4412 ISP driver
clk: samsung: Remove unused mout_user_aclk400_mcuisp_p4x12 variable
* clk-qcom-dispcc-845:
: - Qualcomm SDM845 display clock controller
clk: qcom: Add display clock controller driver for SDM845
dt-bindings: clock: Introduce QCOM Display clock bindings
clk: qcom: Move frequency table macro to common file
* clk-scmi-round:
: - Fix a thinko bug in SCMI clk division logic
clk: scmi: Fix the rounding of clock rate
* clk-cs2000-spdx:
clk: cs2000-cp: convert to SPDX identifiers
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Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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This fix rounds the clock rate properly by using quotient and not
remainder in the calculation. This issue was found while testing HDMI
in the Juno platform.
Fixes: 6d6a1d82eaef7 ("clk: add support for clocks provided by SCMI")
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add support for the display clock controller found on SDM845
based devices. This would allow display drivers to probe and
control their clocks.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
[sboyd@kernel.org: Remove CLK_GET_RATE_NOCACHE everywhere]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Frequency table macro is used by multiple clock drivers, move frequency
table macro to common header file.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Remove unused 'mout_user_aclk400_mcuisp_p4x12' variable to fix GCC warning:
drivers/clk/samsung/clk-exynos4412-isp.c:40:27: warning:
'mout_user_aclk400_mcuisp_p4x12' defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add Actions Semi S700 SoC clock support
Signed-off-by: Parthiban Nallathambi <pn@denx.de>
Signed-off-by: Saravanan Sekar <sravanhome@gmail.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add REGMAP_MMIO as dependency to avoid undefined
reference to regmap symbols.
Fixes: d85d20053e19 ("clk: actions: Add S900 SoC clock support")
Signed-off-by: Saravanan Sekar <sravanhome@gmail.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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'clk-tegra-sdmmc-jitter', 'clk-allwinner' and 'clk-uniphier' into clk-next
* clk-imx6-ocram:
: - i.MX6SX ocram_s clk support
clk: imx: add ocram_s clock for i.mx6sx
* clk-missing-put:
: - Add missing of_node_put()s in some i.MX clk drivers
clk: imx6sll: fix missing of_node_put()
clk: imx6ul: fix missing of_node_put()
* clk-tegra-sdmmc-jitter:
: - Tegra SDMMC clk jitter improvements with high speed signaling modes
clk: tegra: make sdmmc2 and sdmmc4 as sdmmc clocks
clk: tegra: Add sdmmc mux divider clock
clk: tegra: Refactor fractional divider calculation
clk: tegra: Fix includes required by fence_udelay()
* clk-allwinner:
clk: sunxi-ng: add A64 compatible string
dt-bindings: add compatible string for the A64 DE2 CCU
clk: sunxi-ng: r40: Export video PLLs
clk: sunxi-ng: r40: Allow setting parent rate to display related clocks
clk: sunxi-ng: r40: Add minimal rate for video PLLs
* clk-uniphier:
: - Uniphier NAND, USB3 PHY, and SPI clk support
clk: uniphier: add clock frequency support for SPI
clk: uniphier: add more USB3 PHY clocks
clk: uniphier: add NAND 200MHz clock
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Add clock control for SPI controller on UniPhier SoCs.
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add USB3 PHY clocks where missing. Use fixed-factor clocks for those
without gating.
For clarification, prefix clock names with 'ss' or 'hs'.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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The Denali NAND controller IP needs three clocks:
- clk: controller core clock
- clk_x: bus interface clock
- ecc_clk: clock at which ECC circuitry is run
Currently, only the first one (50MHz) is provided. The rest of the
two clock ports must be connected to the 200MHz clock line. Add this.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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As claiming Allwinner A64 SRAM C is a prerequisite for all sub-blocks of
the A64 DE2, not only the CCU sub-block, a bus driver is then written for
enabling the access to the whole DE2 part by claiming the SRAM.
In this situation, the A64 compatible string will be just added with no
other requirments, as they're processed by the parent bus driver.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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Video PLLs need to be referenced in R40 DT as possible HDMI PHY parent.
Export them.
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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Display related peripherals need precise clocks to operate correctly.
Allow DE2, TCONs and HDMI to set parent clock.
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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According to documentation and experience with other similar SoCs, video
PLLs don't work stable if their output frequency is set below 192 MHz.
Because of that, set minimal rate to both R40 video PLLs to 192 MHz.
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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These clocks have low jitter paths to certain parents. To model these
correctly, use the sdmmc mux divider clock type.
Signed-off-by: Peter De-Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add a clock type to model the sdmmc switch divider clocks which have paths
to source clocks bypassing the divider (Low Jitter paths). These
are handled by selecting the lj path when the divider is 1 (ie the
rate is the parent rate), otherwise the normal path with divider
will be selected. Otherwise this clock behaves as a normal peripheral
clock.
Signed-off-by: Peter De-Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Move this to a separate file so it can be used to calculate the sdmmc
clock dividers.
Signed-off-by: Peter De-Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add the missing linux/delay.h include statement for udelay() used by
fence_udelay() macro.
Signed-off-by: Aapo Vienamo <avienamo@nvidia.com>
Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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of_find_compatible_node() is returning a device node with refcount
incremented and must be explicitly decremented after the last use
which is right after the us in of_iomap() here.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Fixes: 4a5f720b6542 ("clk: imx: add clock driver for imx6sll")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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of_find_compatible_node() is returning a device node with refcount
incremented and must be explicitly decremented after the last use
which is right after the us in of_iomap() here.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Fixes: 787b4271a6a0 ("clk: imx: add imx6ul clk tree support")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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i.MX6SX has a 16KB always-on ocram bank called
ocram_s, and its clock gate in CCM CCGR1 CG14
needs to be enabled before access, add it to
clock tree.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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'clk-fixed-factor-populated' and 'clk-mvebu-periph-parent' into clk-next
* clk-qcom-rpmh:
: - Qualcomm RPMh clk driver
clk: qcom: clk-rpmh: Add QCOM RPMh clock driver
* clk-qcom-spdx:
: - SPDX tagging for qcom
clk: qcom: Update SPDX headers for common files
* clk-con-id-leak:
: - Stop leaking con ids in __clk_put()
clk: core: Potentially free connection id
* clk-fixed-factor-populated:
: - Fix a corner case in fixed factor clk probing where node is in DT but
: parent clk is registered much later
clk: clk-fixed-factor: Clear OF_POPULATED flag in case of failure
* clk-mvebu-periph-parent:
: - Marvell Armada 3700 clk_pm_cpu_get_parent() had an invalid return value
clk: mvebu: armada-37xx-periph: Remove unused var num_parents
clk: mvebu: armada-37xx-periph: Fix wrong return value in get_parent
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When building armada-37xx-periph, num_parents isn't used in function
clk_pm_cpu_get_parent:
drivers/clk/mvebu/armada-37xx-periph.c: In function ‘clk_pm_cpu_get_parent’:
drivers/clk/mvebu/armada-37xx-periph.c:419:6: warning: unused variable ‘num_parents’ [-Wunused-variable]
int num_parents = clk_hw_get_num_parents(hw);
^~~~~~~~~~~
Remove the declaration of num_parents to dispose the warning.
Fixes: 616bf80d381d ("clk: mvebu: armada-37xx-periph: Fix wrong return value in get_parent")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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The return value of the get_parent operation is a u8, whereas a -EINVAL
was returned. This wrong value was return if the value was bigger that
the number of parent but this case was already handled by the core.
So we can just remove this chunk of code to fix the issue.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 9818a7a4fd10 ("clk: mvebu: armada-37xx-periph: prepare cpu clk to
be used with DVFS")
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Fixed factor clock has two initializations at of_clk_init() time
and during platform driver probe. Before of_clk_init() call,
node is marked as populated and so its probe never gets called.
During of_clk_init() fixed factor clock registration may fail if
any of its parent clock is not registered. In this case, it doesn't
get chance to retry registration from probe. Clear OF_POPULATED
flag if fixed factor clock registration fails so that clock
registration is attempted again from probe.
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Patch "clk: core: Copy connection id" made it so that the connector id
'con_id' is kstrdup_const()ed to cater to drivers that pass non-constant
connection ids. The patch added the corresponding kfree_const to
__clk_free_clk(), but struct clk's can be freed also via __clk_put().
Add the kfree_const call to __clk_put() and add comments to both
functions to remind that the logic in them should be kept in sync.
Fixes: 253160a8ad06 ("clk: core: Copy connection id")
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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SPDX headers updated for common/branch/pll/regmap files.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Add the RPMh clock driver to control the RPMh managed clock resources on
some of the Qualcomm Technologies, Inc. SoCs.
Signed-off-by: Taniya Das <tdas@codeaurora.org>
[sboyd@kernel.org: Clean up whitespace, indentation, remove
cmd_db_ready check]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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'clk-imx-init-array-cleanup' and 'clk-rockchip' into clk-next
* clk-mvebu-spdx:
clk: mvebu: armada-37xx-periph: switch to SPDX license identifier
* clk-meson:
clk: meson: add gen_clk
clk: meson: gxbb: remove HHI_GEN_CLK_CTNL duplicate definition
clk: meson-axg: add clocks required by pcie driver
clk: meson: remove unused clk-audio-divider driver
clk: meson: stop rate propagation for audio clocks
clk: meson: axg: add the audio clock controller driver
clk: meson: add axg audio sclk divider driver
clk: meson: add triple phase clock driver
clk: meson: add clk-phase clock driver
clk: meson: clean-up meson clock configuration
clk: meson: remove obsolete register access
clk: meson: expose GEN_CLK clkid
clk: meson-axg: add pcie and mipi clock bindings
dt-bindings: clock: add meson axg audio clock controller bindings
clk: meson: audio-divider is one based
clk: meson-gxbb: set fclk_div2 as CLK_IS_CRITICAL
* clk-imx7d-mu:
: - i.MX7D mailbox clk support
clk: imx7d: add IMX7D_MU_ROOT_CLK
* clk-imx-init-array-cleanup:
: - i.MX clk init arrays removed in place of CLK_IS_CRITICAL
clk: imx6sx: remove clks_init_on array
clk: imx6sl: remove clks_init_on array
clk: imx6q: remove clks_init_on array
* clk-rockchip:
clk: rockchip: Add pclk_rkpwm_pmu to PMU critical clocks in rk3399
clk: rockchip: fix clk_i2sout parent selection bits on rk3399
clk: rockchip: add clock controller for px30
clk: rockchip: add support for half divider
dt-bindings: add bindings for px30 clock controller
clk: rockchip: add dt-binding header for px30
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PWM2 is commonly used to control voltage of PWM regulator of VDD_LOG in
RK3399. On the Firefly-RK3399 board, PWM2 outputs 40 KHz square wave
from power on and the VDD_LOG is about 0.9V. When the kernel boots
normally into the system, the PWM2 keeps outputing PWM signal.
But the kernel hangs randomly after "Starting kernel ..." line on that
board. When it happens, PWM2 outputs high level which causes VDD_LOG
drops to 0.4V below the normal operating voltage.
By adding "pclk_rkpwm_pmu" to the rk3399_pmucru_critical_clocks array,
PWM clock is ensured to be prepared at startup and the PWM2 output is
normal. After repeated tests, the early boot hang is gone.
This patch works on both Firefly-RK3399 and ROC-RK3399-PC boards.
Signed-off-by: Levin Du <djw@t-chip.com.cn>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Register, shift and mask were wrong according to datasheet.
Fixes: 115510053e5e ("clk: rockchip: add clock controller for the RK3399")
Cc: stable@vger.kernel.org
Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
Signed-off-by: Anthony Brandon <anthony@amarulasolutions.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Add the clock tree definition for the new px30 SoC.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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The new Rockchip socs have optional half divider:
The formula is shown as:
freq_out = 2*freq_in / (2*div + 3)
Is this the same for all of new SoCs.
So we use "branch_half_divider" + "COMPOSITE_NOMUX_HALFDIV \
DIV_HALF \ COMPOSITE_HALFDIV \ CMPOSITE_NOGATE_HALFDIV"
to hook that special divider clock-type into our clock-tree.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Clock framework will enable those clocks registered
with CLK_IS_CRITICAL flag, so no need to have
clks_init_on array during clock initialization now.
ARM clock is busy divider type which has the
CLK_IS_CRITICAL flag set by default when registered.
IPG clock has no clock gate and its parent AHB clock
is busy divider type, so no need to add CLK_IS_CRITICAL
flag for IPG clock.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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Clock framework will enable those clocks registered
with CLK_IS_CRITICAL flag, so no need to have
clks_init_on array during clock initialization now.
ARM clock is busy divider type which has the
CLK_IS_CRITICAL flag set by default when registered.
IPG clock has no clock gate and its parent AHB clock
is busy divider type, so no need to add CLK_IS_CRITICAL
flag for IPG clock.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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