Factor out the code that is only useful to AP806 so it will be easier
to support AP807. No functional changes.
Signed-off-by: Ben Peled <bpeled@marvell.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lkml.kernel.org/r/20190805100310.29048-8-miquel.raynal@bootlin.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add dynamic AP-DCLK clock (hclk) to system controller driver. AP-DCLK
is half the rate of DDR clock, so its derrived from Sample At Reset
configuration. The clock frequency is required for AP806 AXI monitor
profiling feature.
Signed-off-by: Omri Itach <omrii@marvell.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lkml.kernel.org/r/20190805100310.29048-7-miquel.raynal@bootlin.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
"SaR" means Sample at Reset. DIP switches can be changed on the board,
their states at reset time is available through a register read.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lkml.kernel.org/r/20190805100310.29048-6-miquel.raynal@bootlin.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Enhance the ap-cpu-clk driver to support both AP806 and AP807 CPU
clocks.
Signed-off-by: Ben Peled <bpeled@marvell.com>
[<miquel.raynal@bootlin.com>: use device data instead of conditions on
the compatible]
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lkml.kernel.org/r/20190805100310.29048-5-miquel.raynal@bootlin.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This patch allows same flow to be executed on chips with different
register mappings like AP806 and, in the future, AP807.
Note: this patch has no functional effect, and only prepares the
driver for additional chips to be supported by retrieving the right
device data depenging on the compatible property.
Signed-off-by: Christine Gharzuzi <chrisg@marvell.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lkml.kernel.org/r/20190805100310.29048-4-miquel.raynal@bootlin.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Actually, the clocks exposed for the cluster are not the CPU clocks, but
the PLL clock used as entry clock for the CPU clocks. The CPU clock will
be managed by a driver submitting in the following patches.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lkml.kernel.org/r/20190710134346.30239-5-gregory.clement@bootlin.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The CPU frequency is managed at the AP level for the Armada 7K/8K. The
CPU frequency is modified by cluster: the CPUs of the same cluster have
the same frequency.
This patch adds the clock driver that will be used by CPUFreq, it is
based on the work of Omri Itach <omrii@marvell.com>.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lkml.kernel.org/r/20190710134346.30239-4-gregory.clement@bootlin.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Clock drivers for Armada AP and Armada CP use the same function to
generate unique clock name. A third drivers is coming with the same
need, so it's time to move this function in a common file.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lkml.kernel.org/r/20190710134346.30239-3-gregory.clement@bootlin.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
side. The two main highlights in the core framework are the addition of an bulk
clk_get API that handles optional clks and an extra debugfs file that tells the
developer about the current parent of a clk.
The driver updates are dominated by i.MX in the diffstat, but that is mostly
because that SoC has started converting to the clk_hw style of clk
registration. The next big update is in the Amlogic meson clk driver that
gained some support for audio, cpu, and temperature clks while fixing some PLL
issues. Finally, the biggest thing that stands out is the conversion of a large
part of the Allwinner sunxi-ng driver to the new clk parent scheme that uses
less strings and more pointer comparisons to match clk parents and children up.
In general, it looks like we have a lot of little fixes and tweaks here and
there to clk data along with the normal addition of a handful of new drivers
and a couple new core framework features.
Core:
- Add a 'clk_parent' file in clk debugfs
- Add a clk_bulk_get_optional() API (with devm too)
New Drivers:
- Support gated clk controller on MIPS based BCM63XX SoCs
- Support SiLabs Si5341 and Si5340 chips
- Support for CPU clks on Raspberry Pi devices
- Audsys clock driver for MediaTek MT8516 SoCs
Updates:
- Convert a large portion of the Allwinner sunxi-ng driver to new clk parent scheme
- Small frequency support for SiLabs Si544 chips
- Slow clk support for AT91 SAM9X60 SoCs
- Remove dead code in various clk drivers (-Wunused)
- Support for Marvell 98DX1135 SoCs
- Get duty cycle of generic pwm clks
- Improvement in mmc phase calculation and cleanup of some rate defintions
- Switch i.MX6 and i.MX7 clock drivers to clk_hw based APIs
- Add GPIO, SNVS and GIC clocks for i.MX8 drivers
- Mark imx6sx/ul/ull/sll MMDC_P1_IPG and imx8mm DRAM_APB as critical clock
- Correct imx7ulp nic1_bus_clk and imx8mm audio_pll2_clk clock setting
- Add clks for new Exynos5422 Dynamic Memory Controller driver
- Clock definition for Exynos4412 Mali
- Add CMM (Color Management Module) clocks on Renesas R-Car H3, M3-N, E3, and D3
- Add TPU (Timer Pulse Unit / PWM) clocks on Renesas RZ/G2M
- Support for 32 bit clock IDs in TI's sci-clks for J721e SoCs
- TI clock probing done from DT by default instead of firmware
- Fix Amlogic Meson mpll fractional part and spread sprectrum issues
- Add Amlogic meson8 audio clocks
- Add Amlogic g12a temperature sensors clocks
- Add Amlogic g12a and g12b cpu clocks
- Add TPU (Timer Pulse Unit / PWM) clocks on Renesas R-Car H3, M3-W, and M3-N
- Add CMM (Color Management Module) clocks on Renesas R-Car M3-W
- Add Clock Domain support on Renesas RZ/N1
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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 round of clk driver and framework updates is heavy on the driver
update side. The two main highlights in the core framework are the
addition of an bulk clk_get API that handles optional clks and an
extra debugfs file that tells the developer about the current parent
of a clk.
The driver updates are dominated by i.MX in the diffstat, but that is
mostly because that SoC has started converting to the clk_hw style of
clk registration. The next big update is in the Amlogic meson clk
driver that gained some support for audio, cpu, and temperature clks
while fixing some PLL issues. Finally, the biggest thing that stands
out is the conversion of a large part of the Allwinner sunxi-ng driver
to the new clk parent scheme that uses less strings and more pointer
comparisons to match clk parents and children up.
In general, it looks like we have a lot of little fixes and tweaks
here and there to clk data along with the normal addition of a handful
of new drivers and a couple new core framework features.
Core:
- Add a 'clk_parent' file in clk debugfs
- Add a clk_bulk_get_optional() API (with devm too)
New Drivers:
- Support gated clk controller on MIPS based BCM63XX SoCs
- Support SiLabs Si5341 and Si5340 chips
- Support for CPU clks on Raspberry Pi devices
- Audsys clock driver for MediaTek MT8516 SoCs
Updates:
- Convert a large portion of the Allwinner sunxi-ng driver to new clk parent scheme
- Small frequency support for SiLabs Si544 chips
- Slow clk support for AT91 SAM9X60 SoCs
- Remove dead code in various clk drivers (-Wunused)
- Support for Marvell 98DX1135 SoCs
- Get duty cycle of generic pwm clks
- Improvement in mmc phase calculation and cleanup of some rate defintions
- Switch i.MX6 and i.MX7 clock drivers to clk_hw based APIs
- Add GPIO, SNVS and GIC clocks for i.MX8 drivers
- Mark imx6sx/ul/ull/sll MMDC_P1_IPG and imx8mm DRAM_APB as critical clock
- Correct imx7ulp nic1_bus_clk and imx8mm audio_pll2_clk clock setting
- Add clks for new Exynos5422 Dynamic Memory Controller driver
- Clock definition for Exynos4412 Mali
- Add CMM (Color Management Module) clocks on Renesas R-Car H3, M3-N, E3, and D3
- Add TPU (Timer Pulse Unit / PWM) clocks on Renesas RZ/G2M
- Support for 32 bit clock IDs in TI's sci-clks for J721e SoCs
- TI clock probing done from DT by default instead of firmware
- Fix Amlogic Meson mpll fractional part and spread sprectrum issues
- Add Amlogic meson8 audio clocks
- Add Amlogic g12a temperature sensors clocks
- Add Amlogic g12a and g12b cpu clocks
- Add TPU (Timer Pulse Unit / PWM) clocks on Renesas R-Car H3, M3-W, and M3-N
- Add CMM (Color Management Module) clocks on Renesas R-Car M3-W
- Add Clock Domain support on Renesas RZ/N1"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (190 commits)
clk: consoldiate the __clk_get_hw() declarations
clk: sprd: Add check for return value of sprd_clk_regmap_init()
clk: lochnagar: Update DT binding doc to include the primary SPDIF MCLK
clk: Add Si5341/Si5340 driver
dt-bindings: clock: Add silabs,si5341
clk: clk-si544: Implement small frequency change support
clk: add BCM63XX gated clock controller driver
devicetree: document the BCM63XX gated clock bindings
clk: at91: sckc: use dedicated functions to unregister clock
clk: at91: sckc: improve error path for sama5d4 sck registration
clk: at91: sckc: remove unnecessary line
clk: at91: sckc: improve error path for sam9x5 sck register
clk: at91: sckc: add support to free slow clock osclillator
clk: at91: sckc: add support to free slow rc oscillator
clk: at91: sckc: add support to free slow oscillator
clk: rockchip: export HDMIPHY clock on rk3228
clk: rockchip: add watchdog pclk on rk3328
clk: rockchip: add clock id for hdmi_phy special clock on rk3228
clk: rockchip: add clock id for watchdog pclk on rk3328
clk: at91: sckc: add support for SAM9X60
...
The 98DX1135 is a switch chip with an integrated CPU. This is similar to
the 98DX4122 except that the core clock speed is fixed to 166Mhz.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There are a few spelling mistakes in comments and a pr_err
error message. Fix these.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The of_find_compatible_node() returns a node pointer with refcount
incremented, but there is the lack of use of the of_node_put() when
done. Add the missing of_node_put() to release the refcount.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Fixes: 8f7fc5450b ("clk: mvebu: dove: maintain clock init order")
Fixes: 63b8d92c79 ("clk: add Dove PLL divider support for GPU, VMeta and AXI clocks")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The of_find_compatible_node() returns a node pointer with refcount
incremented, but there is the lack of use of the of_node_put() when
done. Add the missing of_node_put() to release the refcount.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Fixes: 3370726042 ("clk: mvebu: Expand mv98dx3236-core-clock support")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The of_find_compatible_node() returns a node pointer with refcount
incremented, but there is the lack of use of the of_node_put() when
done. Add the missing of_node_put() to release the refcount.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Fixes: 0a11a6ae94 ("clk: mvebu: armada-xp: maintain clock init order")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The of_find_compatible_node() returns a node pointer with refcount
incremented, but there is the lack of use of the of_node_put() when
done. Add the missing of_node_put() to release the refcount.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Fixes: 58d516ae95 ("clk: mvebu: kirkwood: maintain clock init order")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
The of_find_compatible_node() returns a node pointer with refcount
incremented, but there is the lack of use of the of_node_put() when
done. Add the missing of_node_put() to release the refcount.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Fixes: 07ad6836fa ("clk: mvebu: armada-370: maintain clock init order")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
These > comparisons should be >= to prevent reading beyond the end of
of the clk_data->hws[] buffer.
The clk_data->hws[] array is allocated in cp110_syscon_common_probe()
when we do:
cp110_clk_data = devm_kzalloc(dev, sizeof(*cp110_clk_data) +
sizeof(struct clk_hw *) * CP110_CLK_NUM,
GFP_KERNEL);
As you can see, it has CP110_CLK_NUM elements which is equivalent to
CP110_MAX_CORE_CLOCKS + CP110_MAX_GATABLE_CLOCKS.
Fixes: d3da3eaef7 ("clk: mvebu: new driver for Armada CP110 system controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
because of summer time holidays/vacations. The biggest change in the diffstat
is in the Qualcomm clk driver, where they got support for CPUs and handful of
SoCs. After that, the at91 driver got a major rewrite for newer DT bindings
that should make things easier going forward and the TI code moved to a
clockdomain based design. The long tail is mostly small driver updates for
newer clks and some simpler SoC clock drivers such as the Hisilicon and imx
support.
In the core framework, we only have two small changes this time. One is a new
clk API to get all clks for a device with the bulk clk APIs. This allows
drivers that don't care about doing anything besides turning on all the clks to
just clk_get() them all and turn them on. The other change is the beginning of
a way to support save and restore of clk settings in the clk framework. TI is
the only user right now, but we will want to expand upon this design in the
future to support more save and restore of clk registers. At least this gets
us started and works well enough for one SoC, but there's more work in the
future.
Core:
- clk_bulk_get_all() API and friends to get all the clks for a device
- Basic clk state save/restore hooks
New Drivers:
- Renesas RZ/A2 (R7S9210) SoC, including early clocks
- Rensas RZ/G1N (R8A7744) and RZ/G2E (R8A774C0) SoCs
- Rensas RZ/G2M (r8a774a1) SoC
- Qualcomm Krait CPU clk support
- Qualcomm QCS404 GCC support
- Qualcomm SDM660 GCC support
- Qualcomm SDM845 camera clock controller
- Ingenic jz4725b CGU
- Hisilicon 3670 SoC support
- TI SCI clks on K3 SoCs
- iMX6 MMDC clks
- Reset Controller (RMU) support for Actions Semi Owl S900 and S700 SoCs
Updates:
- Rework at91 PMC clock driver for new DT bindings
- Nvidia Tegra clk driver MBIST workaround fix
- S2RAM support for Marvell mvebu periph clks
- Use updated printk format for OF node names
- Fix TI code to only search DT subnodes
- Various static analysis finds
- Tag various drivers with SPDX license tags
- Support dynamic frequency switching (DFS) on qcom SDM845 GCC
- Only use s2mps11 dt-binding defines instead of redefining them in the driver
- Add some more missing clks to qcom MSM8996 GCC
- Quad SPI clks on qcom SDM845
- Add support for CMT timer clocks on R-Car V3H
- Add support for SHDI and various timer clocks on R-Car V3M
- Improve OSC and RCLK (watchdog) handling on R-Car Gen3 SoCs
- Amlogic clk-pll driver improvements and updates
- Amlogic axg audio controller system clocks
- Register Amlogic meson8b clock controller early
- Add support for SATA and Fine Display Processor (FDP) clocks on R-Car M3-N
- Consolidation of system suspend related code in Exynos, S5P, S3C SoC clk drivers
- Fixes for system suspend support on Exynos542x (Odroid boards) and Exynos5433 SoC
- Remove obsoleted Exynos4212 ISP clock definitions
- Migrated TI am3/4/5 and dra7 SoCs to clockdomain based design
- TI RTC+DDR sleep mode support for clock save/restore
- Allwinner A64 display engine support and fixes
- Allwinner A83t display engine support and fixes
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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 time it looks like a quieter release cycle in the clk tree. I
guess that's because of summer time holidays/vacations. The biggest
change in the diffstat is in the Qualcomm clk driver, where they got
support for CPUs and handful of SoCs. After that, the at91 driver got
a major rewrite for newer DT bindings that should make things easier
going forward and the TI code moved to a clockdomain based design.
The long tail is mostly small driver updates for newer clks and some
simpler SoC clock drivers such as the Hisilicon and imx support.
In the core framework, we only have two small changes this time.
One is a new clk API to get all clks for a device with the bulk clk
APIs. This allows drivers that don't care about doing anything besides
turning on all the clks to just clk_get() them all and turn them on.
The other change is the beginning of a way to support save and restore
of clk settings in the clk framework. TI is the only user right now,
but we will want to expand upon this design in the future to support
more save and restore of clk registers. At least this gets us started
and works well enough for one SoC, but there's more work in the
future.
Core:
- clk_bulk_get_all() API and friends to get all the clks for a device
- Basic clk state save/restore hooks
New Drivers:
- Renesas RZ/A2 (R7S9210) SoC, including early clocks
- Rensas RZ/G1N (R8A7744) and RZ/G2E (R8A774C0) SoCs
- Rensas RZ/G2M (r8a774a1) SoC
- Qualcomm Krait CPU clk support
- Qualcomm QCS404 GCC support
- Qualcomm SDM660 GCC support
- Qualcomm SDM845 camera clock controller
- Ingenic jz4725b CGU
- Hisilicon 3670 SoC support
- TI SCI clks on K3 SoCs
- iMX6 MMDC clks
- Reset Controller (RMU) support for Actions Semi Owl S900 and S700 SoCs
Updates:
- Rework at91 PMC clock driver for new DT bindings
- Nvidia Tegra clk driver MBIST workaround fix
- S2RAM support for Marvell mvebu periph clks
- Use updated printk format for OF node names
- Fix TI code to only search DT subnodes
- Various static analysis finds
- Tag various drivers with SPDX license tags
- Support dynamic frequency switching (DFS) on qcom SDM845 GCC
- Only use s2mps11 dt-binding defines instead of redefining them in the driver
- Add some more missing clks to qcom MSM8996 GCC
- Quad SPI clks on qcom SDM845
- Add support for CMT timer clocks on R-Car V3H
- Add support for SHDI and various timer clocks on R-Car V3M
- Improve OSC and RCLK (watchdog) handling on R-Car Gen3 SoCs
- Amlogic clk-pll driver improvements and updates
- Amlogic axg audio controller system clocks
- Register Amlogic meson8b clock controller early
- Add support for SATA and Fine Display Processor (FDP) clocks on R-Car M3-N
- Consolidation of system suspend related code in Exynos, S5P, S3C SoC clk drivers
- Fixes for system suspend support on Exynos542x (Odroid boards) and Exynos5433 SoC
- Remove obsoleted Exynos4212 ISP clock definitions
- Migrated TI am3/4/5 and dra7 SoCs to clockdomain based design
- TI RTC+DDR sleep mode support for clock save/restore
- Allwinner A64 display engine support and fixes
- Allwinner A83t display engine support and fixes"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (186 commits)
clk: qcom: Remove unused arrays in SDM845 GCC
clk: fixed-rate: fix of_node_get-put imbalance
clk: s2mps11: Add used attribute to s2mps11_dt_match
clk: qcom: gcc-sdm660: Add MODULE_LICENSE
clk: qcom: Add safe switch hook for krait mux clocks
dt-bindings: clock: Document qcom,krait-cc
clk: qcom: Add Krait clock controller driver
dt-bindings: arm: Document qcom,kpss-gcc
clk: qcom: Add KPSS ACC/GCC driver
clk: qcom: Add support for Krait clocks
clk: qcom: Add IPQ806X's HFPLLs
clk: qcom: Add MSM8960/APQ8064's HFPLLs
dt-bindings: clock: Document qcom,hfpll
clk: qcom: Add HFPLL driver
clk: qcom: Add support for High-Frequency PLLs (HFPLLs)
ARM: Add Krait L2 register accessor functions
clk: imx6q: add mmdc0 ipg clock
clk: imx6sl: add mmdc ipg clocks
clk: imx6sll: add mmdc1 ipg clock
clk: imx6sx: add mmdc1 ipg clock
...
- S2RAM support for Marvell mvebu periph clks
* clk-mvebu-periph-pm:
clk: mvebu: armada-37xx-periph: add suspend/resume support
clk: mvebu: armada-37xx-periph: save the IP base address in the driver data
* clk-meson:
clk: meson: meson8b: use the regmap in the internal reset controller
clk: meson: meson8b: register the clock controller early
clk: meson-axg: pcie: drop the mpll3 clock parent
clk: meson: axg: round audio system master clocks down
clk: meson: clk-pll: drop hard-coded rates from pll tables
clk: meson: clk-pll: remove od parameters
clk: meson: clk-pll: drop CLK_GET_RATE_NOCACHE where unnecessary
clk: meson: clk-pll: add enable bit
* clk-allwinner:
dt-bindings: clock: sun50i-a64-ccu: Add PLL_VIDEO0 macro
clk: sunxi-ng: a64: Add max. rate constraint to video PLLs
clk: sunxi-ng: a64: Add minimal rate for video PLLs
clk: sunxi-ng: sun50i: h6: Add 2x fixed post-divider to MMC module clocks
clk: sunxi-ng: a83t: Add max. rate constraint to video PLLs
clk: sunxi-ng: nkmp: Add constraint for maximum rate
clk: sunxi-ng: r40: Add max. rate constraint to video PLLs
clk: sunxi-ng: h3/h5: Add max. rate constraint to pll-video
clk: sunxi-ng: Add maximum rate constraint to NM PLLs
clk: sunxi-ng: h6: fix PWM gate/reset offset
clk: sunxi-ng: h6: fix bus clocks' divider position
* clk-mvebu-dup:
clk: mvebu: ap806: Remove superfluous of_clk_add_provider
* clk-davinci:
clk: davinci: kill davinci_clk_reset_assert/deassert()
- Use updated printk format for OF node names
- Fix TI code to only search DT subnodes
- Various static analysis finds
* clk-dt-name:
clk: Convert to using %pOFn instead of device_node.name
* clk-ti-of-node:
clk: ti: fix OF child-node lookup
* clk-sa:
clk: mvebu: armada-37xx-tbg: Switch to clk_get and balance it in probe
reset: hisilicon: fix potential NULL pointer dereference
clk: cdce925: release child device nodes
clk: qcom: clk-branch: Use true and false for boolean values
The parent clock is get only to have its name, and then the clock is no
more used, so we can safely free it using clk_put. Furthermore as between
the successful devm_clk_get() and the devm_clk_put() call we don't exit
the probe function in error so I can use non managed version of clk_get()
and clk_put().
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
While applying the commit a8309cedcd ("clk: apn806: Add eMMC clock to
system controller driver"), of_clk_add_provider was added wheres it was
already present in the probe function.
This extraneous call is harmless but not useful so remove it.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Use the for_each_of_cpu_node iterator to iterate over cpu nodes. This
has the side effect of defaulting to iterating using "cpu" node names in
preference to the deprecated (for FDT) device_type == "cpu".
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: linux-clk@vger.kernel.org
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Add suspend/resume hooks in Armada 37xx peripheral clocks driver to
handle S2RAM operations.
One can think that these hooks are useless by comparing the register
values before and after a suspend/resume cycle: they will look the same
anyway. This is because of some scripts executed by the Cortex-M3 core
during ATF operations to init both the clocks and the DDR. These values
could be modified by the BL33 stage or by Linux itself and should be
preserved.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Prepare the introduction of suspend/resume hooks by having an easy way
to access all the registers in one go just from a device: add the IP
base address in the driver data.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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.
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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:
"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
...
* 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
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: 616bf80d38 ("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>
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: 9818a7a4fd ("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>
Switching the CPU from the L2 or L3 frequencies (300 and 200 Mhz
respectively) to L0 frequency (1.2 Ghz) requires a significant amount
of time to let VDD stabilize to the appropriate voltage. This amount of
time is large enough that it cannot be covered by the hardware
countdown register. Due to this, the CPU might start operating at L0
before the voltage is stabilized, leading to CPU stalls.
To work around this problem, we prevent switching directly from the
L2/L3 frequencies to the L0 frequency, and instead switch to the L1
frequency in-between. The sequence therefore becomes:
1. First switch from L2/L3(200/300MHz) to L1(600MHZ)
2. Sleep 20ms for stabling VDD voltage
3. Then switch from L1(600MHZ) to L0(1200Mhz).
It is based on the work done by Ken Ma <make@marvell.com>
Cc: stable@vger.kernel.org
Fixes: 2089dc33ea ("clk: mvebu: armada-37xx-periph: add DVFS support for cpu clocks")
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
general cleanups, but nothing too major. The majority of the diff goes to
two SoCs, Actions Semi and Qualcomm. A brand new driver is introduced for
Actions Semi so it takes up some lines to add all the different types, and
the Qualcomm diff is there because we add support for two SoCs and it's quite
a bit of data.
Otherwise the big driver updates are on TI Davinci and Amlogic platforms. And
then the long tail of driver updates for various fixes and stuff follows
after that.
Core:
- debugfs cleanups removing error checking and an unused provider API
- Removal of a clk init typedef that isn't used
- Usage of match_string() to simplify parent string name matching
- OF clk helpers moved to their own file (linux/of_clk.h)
- Make clk warnings more readable across kernel versions
New Drivers:
- Qualcomm SDM845 GCC and Video clk controllers
- Qualcomm MSM8998 GCC
- Actions Semi S900 SoC support
- Nuvoton npcm750 microcontroller clks
- Amlogic axg AO clock controller
Removed Drivers:
- Deprecated Rockchip clk-gate driver
Updates:
- debugfs functions stopped checking return values
- Support for the MSIOF module clocks on Rensas R-Car M3-N
- Support for the new Rensas RZ/G1C and R-Car E3 SoCs
- Qualcomm GDSC, RCG, and PLL updates for clk changes in new SoCs
- Berlin and Amlogic SPDX tagging
- Usage of of_clk_get_parent_count() in more places
- Proper implementation of the CDEV1/2 clocks on Tegra20
- Allwinner H6 PRCM clock support and R40 EMAC support
- Add critical flag to meson8b's fdiv2 as temporary fixup for ethernet
- Round closest support for meson's mpll driver
- Support for meson8b nand clocks and gxbb video decoder clocks
- Mediatek mali clks
- STM32MP1 fixes
- Uniphier LD11/LD20 stream demux system clock
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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 time we have a good set of changes to the core framework that do
some general cleanups, but nothing too major. The majority of the diff
goes to two SoCs, Actions Semi and Qualcomm. A brand new driver is
introduced for Actions Semi so it takes up some lines to add all the
different types, and the Qualcomm diff is there because we add support
for two SoCs and it's quite a bit of data.
Otherwise the big driver updates are on TI Davinci and Amlogic
platforms. And then the long tail of driver updates for various fixes
and stuff follows after that.
Core:
- debugfs cleanups removing error checking and an unused provider API
- Removal of a clk init typedef that isn't used
- Usage of match_string() to simplify parent string name matching
- OF clk helpers moved to their own file (linux/of_clk.h)
- Make clk warnings more readable across kernel versions
New Drivers:
- Qualcomm SDM845 GCC and Video clk controllers
- Qualcomm MSM8998 GCC
- Actions Semi S900 SoC support
- Nuvoton npcm750 microcontroller clks
- Amlogic axg AO clock controller
Removed Drivers:
- Deprecated Rockchip clk-gate driver
Updates:
- debugfs functions stopped checking return values
- Support for the MSIOF module clocks on Rensas R-Car M3-N
- Support for the new Rensas RZ/G1C and R-Car E3 SoCs
- Qualcomm GDSC, RCG, and PLL updates for clk changes in new SoCs
- Berlin and Amlogic SPDX tagging
- Usage of of_clk_get_parent_count() in more places
- Proper implementation of the CDEV1/2 clocks on Tegra20
- Allwinner H6 PRCM clock support and R40 EMAC support
- Add critical flag to meson8b's fdiv2 as temporary fixup for ethernet
- Round closest support for meson's mpll driver
- Support for meson8b nand clocks and gxbb video decoder clocks
- Mediatek mali clks
- STM32MP1 fixes
- Uniphier LD11/LD20 stream demux system clock"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (134 commits)
clk: qcom: Export clk_fabia_pll_configure()
clk: bcm: Update and add Stingray clock entries
dt-bindings: clk: Update Stingray binding doc
clk-si544: Properly round requested frequency to nearest match
clk: ingenic: jz4770: Add 150us delay after enabling VPU clock
clk: ingenic: jz4770: Enable power of AHB1 bus after ungating VPU clock
clk: ingenic: jz4770: Modify C1CLK clock to disable CPU clock stop on idle
clk: ingenic: jz4770: Change OTG from custom to standard gated clock
clk: ingenic: Support specifying "wait for clock stable" delay
clk: ingenic: Add support for clocks whose gate bit is inverted
clk: use match_string() helper
clk: bcm2835: use match_string() helper
clk: Return void from debug_init op
clk: remove clk_debugfs_add_file()
clk: tegra: no need to check return value of debugfs_create functions
clk: davinci: no need to check return value of debugfs_create functions
clk: bcm2835: no need to check return value of debugfs_create functions
clk: no need to check return value of debugfs_create functions
clk: imx6: add EPIT clock support
clk: mvebu: use correct bit for 98DX3236 NAND
...
The correct fieldbit value for the NAND PLL reload trigger is 27.
Fixes: commit e120c17a70 ("clk: mvebu: support for 98DX3236 SoC")
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Clearfog boards can come with a CPU clocked at 1600MHz (commercial)
or 1333MHz (industrial).
They have also some dip-switches to select a different clock (666, 800,
1066, 1200).
The funny thing is that the recovery button is on the MPP34 fq selector.
So, when booting an industrial board with this button down, the frequency
666MHz is selected (and the kernel didn't boot).
This patch add all the missing clocks.
The only mode I didn't test is 2GHz (uboot found 4294MHz instead :/ ).
Fixes: 0e85aeced4 ("clk: mvebu: add clock support for Armada 380/385")
Cc: <stable@vger.kernel.org> # 3.16.x: 9593f4f56c: clk: mvebu: armada-38x: add support for 1866MHz variants
Cc: <stable@vger.kernel.org> # 3.16.x
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Thanks to new documentation, we have a better view of the clock tree.
There were few mistakes in the first version of this driver, the main one
being the parental link between the clocks. Actually the tree is more
flat that we though. Most of the IP blocks require two clocks: one for
the IP itself and one for accessing the registers, and unlike what we
wrote there is no link between these two clocks.
The other mistakes were about the name of the clocks: the root clock is
not the Audio PLL but the PLL0, and what we called the EIP clock is named
the x2 Core clock and is used by other IP block than the EIP ones.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
* clk-iproc:
clk: iproc: Minor tidy up of iproc pll data structures
clk: iproc: Allow plls to do minor rate changes without reset
clk: iproc: Fix error in the pll post divider rate calculation
clk: iproc: Allow iproc pll to runtime calculate vco parameters
* clk-mvebu:
clk: mvebu: armada-37xx-periph: Use PTR_ERR_OR_ZERO()
* clk-qcom-a53:
clk: qcom: Add APCS clock controller support
clk: qcom: Add regmap mux-div clocks support
clk: qcom: Add A53 PLL support
Fix ptr_ret.cocci warnings:
drivers/clk/mvebu/armada-37xx-periph.c:362:1-3: WARNING: PTR_ERR_OR_ZERO can be used
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
Generated by: scripts/coccinelle/api/ptr_ret.cocci
Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
When DVFS is enabled the CPU clock setting is done using an other set of
registers.
These Power Management registers are exposed through a syscon as they
will also be used by other drivers such as the cpufreq.
This patch add the possibility to modify the CPU frequency using the
associate load level matching the target frequency. Then all the
frequency switch is handle by the hardware.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
[sboyd@codeaurora.org: Grow a local variable for regmap pointer
to keep lines shorter]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
When DVFS will be enabled then the cpu clk will use a different set of
register at run time. That means that we won't be able to use the common
callback and need to use our own ones.
This patch prepares this change by switching on our own set of callbacks
without modifying the behavior of the clocks.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
This patches fixes few cosmetic issues such as alignment, blank lines
and required space.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mark an array of strings static const and remove the dereference
of a function pointer when assigning to the platform driver probe
struct member.
drivers/clk/mvebu/cp110-system-controller.c:89:12:
warning: symbol 'gate_base_names' was not declared. Should it be static?
drivers/clk/mvebu/cp110-system-controller.c:447:18:
error: cannot dereference this type
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Pull improved Marvel Armada 7K/8K cp110 clk support from Gregory CLEMENT:
We got more information about the clock controllers and the clock tree
of the CP110 part that we find in the Marvell Armada 7K/8K SoCs. The
clk driver is modified accordingly from this new information.
* 'clk-cp110' of git://git.infradead.org/linux-mvebu:
clk: mvebu: cp110: add sdio clock to cp-110 system controller
clk: mvebu: cp110: introduce a new binding
clk: mvebu: cp110: do not depend anymore of the *-clock-output-names
clk: mvebu: cp110: make failure labels more meaningful
This commit updates the CP110 system controller driver to add the
definition for a missing clock.
The SDIO clock is dedicated driving the SDHCI interface and its frequency
is 400MHz (2/5 of PLL source clock).
The SDIO interface should be bound to this clock and not the core clock
as in the older code.
Using the wrong clock lead to a maximum SDHCI frequency of 250 Mhz, while
the HW really supports up to 400 Mhz.
This patch also fixes the NAND clock relationship documentation.
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
[gregory.clement@free-electrons.com:
- use sdio instead of emmc to name the clock]
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
The initial intent when the binding of the cp110 system controller was to
have one flat node. The idea being that what is currently a clock-only
driver in drivers would become a MFD driver, exposing the clock, GPIO and
pinctrl functionality. However, after taking a step back, this would lead
to a messy binding. Indeed, a single node would be a GPIO controller,
clock controller, pinmux controller, and more.
This patch adopts a more classical solution of a top-level syscon node
with sub-nodes for the individual devices. The main benefit will be to
have each functional block associated to its own sub-node where we can
put its own properties.
The introduction of the Armada 7K/8K is still in the early stage so the
plan is to remove the old binding. However, we don't want to break the
device tree compatibility for the few devices already in the field. For
this we still keep the support of the legacy compatible string with a big
warning in the kernel about updating the device tree.
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
