Here is the large set of char, misc, and other driver subsystem updates
for 5.19-rc1. The merge request for this has been delayed as I wanted
to get lots of linux-next testing due to some late arrivals of changes
for the habannalabs driver.
Highlights of this merge are:
- habanalabs driver updates for new hardware types and fixes and
other updates
- IIO driver tree merge which includes loads of new IIO drivers
and cleanups and additions
- PHY driver tree merge with new drivers and small updates to
existing ones
- interconnect driver tree merge with fixes and updates
- soundwire driver tree merge with some small fixes
- coresight driver tree merge with small fixes and updates
- mhi bus driver tree merge with lots of updates and new device
support
- firmware driver updates
- fpga driver updates
- lkdtm driver updates (with a merge conflict, more on that
below)
- extcon driver tree merge with small updates
- lots of other tiny driver updates and fixes and cleanups, full
details in the shortlog.
All of these have been in linux-next for almost 2 weeks with no reported
problems.
Note, there are 3 merge conflicts when merging this with your tree:
- MAINTAINERS, should be easy to resolve
- drivers/slimbus/qcom-ctrl.c, should be straightforward
resolution
- drivers/misc/lkdtm/stackleak.c, not an easy resolution. This
has been noted in the linux-next tree for a while, and
resolved there, here's a link to the resolution that Stephen
came up with and that Kees says is correct:
https://lore.kernel.org/r/20220509185344.3fe1a354@canb.auug.org.au
I will be glad to provide a merge point that contains these resolutions
if that makes things any easier for you.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc / other smaller driver subsystem updates from Greg KH:
"Here is the large set of char, misc, and other driver subsystem
updates for 5.19-rc1. The merge request for this has been delayed as I
wanted to get lots of linux-next testing due to some late arrivals of
changes for the habannalabs driver.
Highlights of this merge are:
- habanalabs driver updates for new hardware types and fixes and
other updates
- IIO driver tree merge which includes loads of new IIO drivers and
cleanups and additions
- PHY driver tree merge with new drivers and small updates to
existing ones
- interconnect driver tree merge with fixes and updates
- soundwire driver tree merge with some small fixes
- coresight driver tree merge with small fixes and updates
- mhi bus driver tree merge with lots of updates and new device
support
- firmware driver updates
- fpga driver updates
- lkdtm driver updates (with a merge conflict, more on that below)
- extcon driver tree merge with small updates
- lots of other tiny driver updates and fixes and cleanups, full
details in the shortlog.
All of these have been in linux-next for almost 2 weeks with no
reported problems"
* tag 'char-misc-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (387 commits)
habanalabs: use separate structure info for each error collect data
habanalabs: fix missing handle shift during mmap
habanalabs: remove hdev from hl_ctx_get args
habanalabs: do MMU prefetch as deferred work
habanalabs: order memory manager messages
habanalabs: return -EFAULT on copy_to_user error
habanalabs: use NULL for eventfd
habanalabs: update firmware header
habanalabs: add support for notification via eventfd
habanalabs: add topic to memory manager buffer
habanalabs: handle race in driver fini
habanalabs: add device memory scrub ability through debugfs
habanalabs: use unified memory manager for CB flow
habanalabs: unified memory manager new code for CB flow
habanalabs/gaudi: set arbitration timeout to a high value
habanalabs: add put by handle method to memory manager
habanalabs: hide memory manager page shift
habanalabs: Add separate poll interval value for protocol
habanalabs: use get_task_pid() to take PID
habanalabs: add prefetch flag to the MAP operation
...
This is the second part of the general SoC updates, containing
everything that did not make it in the initial pull request,
or that came in as a bugfix later.
- Devicetree updates for SoCFPGA, ASPEED, AT91 and Rockchip, including
a new machine using an ASPEED BMC.
- More DT fixes from Krzysztof Kozlowski across platforms
- A new SoC platform for the GXP baseboard management controller,
used in current server products from HPE.
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Merge tag 'arm-late-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull more ARM SoC updates from Arnd Bergmann:
"This is the second part of the general SoC updates, containing
everything that did not make it in the initial pull request, or that
came in as a bugfix later.
- Devicetree updates for SoCFPGA, ASPEED, AT91 and Rockchip,
including a new machine using an ASPEED BMC.
- More DT fixes from Krzysztof Kozlowski across platforms
- A new SoC platform for the GXP baseboard management controller,
used in current server products from HPE"
* tag 'arm-late-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (56 commits)
ARM: configs: Enable more audio support for i.MX
tee: optee: Pass a pointer to virt_addr_valid()
arm64: dts: rockchip: rename Quartz64-A bluetooth gpios
arm64: dts: rockchip: add clocks property to cru node rk3368
arm64: dts: rockchip: add clocks property to cru node rk3308
arm64: dts: rockchip: add clocks to rk356x cru
ARM: dts: rockchip: add clocks property to cru node rk3228
ARM: dts: rockchip: add clocks property to cru node rk3036
ARM: dts: rockchip: add clocks property to cru node rk3066a/rk3188
ARM: dts: rockchip: add clocks property to cru node rk3288
ARM: dts: rockchip: Remove "amba" bus nodes from rv1108
ARM: dts: rockchip: add clocks property to cru node rv1108
arm64: dts: sprd: use new 'dma-channels' property
ARM: dts: da850: use new 'dma-channels' property
ARM: dts: pxa: use new 'dma-channels/requests' properties
soc: ixp4xx/qmgr: Fix unused match warning
ARM: ep93xx: Make ts72xx_register_flash() static
ARM: configs: enable support for Kontron KSwitch D10
ep93xx: clock: Do not return the address of the freed memory
arm64: dts: intel: add device tree for n6000
...
The second part of the multiplatform changes now converts the
Intel/Marvell PXA platform along with the rest. The patches went through
several rebases before the merge window as bugs were found, so they
remained separate.
This has to touch a lot of drivers, in particular the touchscreen,
pcmcia, sound and clk bits, to detach the driver files from the
platform and board specific header files.
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Merge tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull more ARM multiplatform updates from Arnd Bergmann:
"The second part of the multiplatform changes now converts the
Intel/Marvell PXA platform along with the rest. The patches went
through several rebases before the merge window as bugs were found, so
they remained separate.
This has to touch a lot of drivers, in particular the touchscreen,
pcmcia, sound and clk bits, to detach the driver files from the
platform and board specific header files"
* tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (48 commits)
ARM: pxa/mmp: remove traces of plat-pxa
ARM: pxa: convert to multiplatform
ARM: pxa/sa1100: move I/O space to PCI_IOBASE
ARM: pxa: remove support for MTD_XIP
ARM: pxa: move mach/*.h to mach-pxa/
ARM: PXA: fix multi-cpu build of xsc3
ARM: pxa: move plat-pxa to drivers/soc/
ARM: mmp: rename pxa_register_device
ARM: mmp: remove tavorevb board support
ARM: pxa: remove unused mach/bitfield.h
ARM: pxa: move clk register definitions to driver
ARM: pxa: move smemc register access from clk to platform
cpufreq: pxa3: move clk register access to clk driver
ARM: pxa: remove get_clk_frequency_khz()
ARM: pxa: pcmcia: move smemc configuration back to arch
ASoC: pxa: i2s: use normal MMIO accessors
ASoC: pxa: ac97: use normal MMIO accessors
ASoC: pxa: use pdev resource for FIFO regs
Input: wm97xx - get rid of irq_enable method in wm97xx_mach_ops
Input: wm97xx - switch to using threaded IRQ
...
- Add Tegra234 cpufreq support (Sumit Gupta).
- Clean up and enhance the Mediatek cpufreq driver (Wan Jiabing,
Rex-BC Chen, and Jia-Wei Chang).
- Fix up the CPPC cpufreq driver after recent changes (Zheng Bin,
Pierre Gondois).
- Minor update to dt-binding for Qcom's opp-v2-kryo-cpu (Yassine
Oudjana).
- Use list iterator only inside the list_for_each_entry loop (Xiaomeng
Tong, and Jakob Koschel).
- New APIs related to finding OPP based on interconnect bandwidth
(Krzysztof Kozlowski).
- Fix the missing of_node_put() in _bandwidth_supported() (Dan
Carpenter).
- Cleanups (Krzysztof Kozlowski, and Viresh Kumar).
- Add Out of Band mode description to the intel-speed-select utility
documentation (Srinivas Pandruvada).
- Add power sequences support to the system reboot and power off
code and make related platform-specific changes for multiple
platforms (Dmitry Osipenko, Geert Uytterhoeven).
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Merge tag 'pm-5.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These update the ARM cpufreq drivers and fix up the CPPC cpufreq
driver after recent changes, update the OPP code and PM documentation
and add power sequences support to the system reboot and power off
code.
Specifics:
- Add Tegra234 cpufreq support (Sumit Gupta)
- Clean up and enhance the Mediatek cpufreq driver (Wan Jiabing,
Rex-BC Chen, and Jia-Wei Chang)
- Fix up the CPPC cpufreq driver after recent changes (Zheng Bin,
Pierre Gondois)
- Minor update to dt-binding for Qcom's opp-v2-kryo-cpu (Yassine
Oudjana)
- Use list iterator only inside the list_for_each_entry loop
(Xiaomeng Tong, and Jakob Koschel)
- New APIs related to finding OPP based on interconnect bandwidth
(Krzysztof Kozlowski)
- Fix the missing of_node_put() in _bandwidth_supported() (Dan
Carpenter)
- Cleanups (Krzysztof Kozlowski, and Viresh Kumar)
- Add Out of Band mode description to the intel-speed-select utility
documentation (Srinivas Pandruvada)
- Add power sequences support to the system reboot and power off code
and make related platform-specific changes for multiple platforms
(Dmitry Osipenko, Geert Uytterhoeven)"
* tag 'pm-5.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (60 commits)
cpufreq: CPPC: Fix unused-function warning
cpufreq: CPPC: Fix build error without CONFIG_ACPI_CPPC_CPUFREQ_FIE
Documentation: admin-guide: PM: Add Out of Band mode
kernel/reboot: Change registration order of legacy power-off handler
m68k: virt: Switch to new sys-off handler API
kernel/reboot: Add devm_register_restart_handler()
kernel/reboot: Add devm_register_power_off_handler()
soc/tegra: pmc: Use sys-off handler API to power off Nexus 7 properly
reboot: Remove pm_power_off_prepare()
regulator: pfuze100: Use devm_register_sys_off_handler()
ACPI: power: Switch to sys-off handler API
memory: emif: Use kernel_can_power_off()
mips: Use do_kernel_power_off()
ia64: Use do_kernel_power_off()
x86: Use do_kernel_power_off()
sh: Use do_kernel_power_off()
m68k: Switch to new sys-off handler API
powerpc: Use do_kernel_power_off()
xen/x86: Use do_kernel_power_off()
parisc: Use do_kernel_power_off()
...
The kernel test robot found this inconsistency:
>> drivers/soc/ixp4xx/ixp4xx-npe.c:737:34: warning:
'ixp4xx_npe_of_match' defined but not used [-Wunused-const-variable=]
737 | static const struct of_device_id ixp4xx_npe_of_match[] = {
This is because the match is enclosed in the of_match_ptr()
which compiles into NULL when OF is disabled and this
is unnecessary.
Fix it by dropping of_match_ptr() around the match.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220523085520.913217-1-linus.walleij@linaro.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
There are minor updates to SoC specific drivers for chips by Rockchip,
Samsung, NVIDIA, TI, NXP, i.MX, Qualcomm, and Broadcom. Noteworthy
driver changes include:
- Several conversions of DT bindings to yaml format.
- Renesas adds driver support for R-Car V4H, RZ/V2M and RZ/G2UL SoCs.
- Qualcomm adds a bus driver for the SSC (Snapdragon Sensor Core),
and support for more chips in the RPMh power domains and the soc-id.
- NXP has a new driver for the HDMI blk-ctrl on i.MX8MP.
- Apple M1 gains support for the on-chip NVMe controller, making it
possible to finally use the internal disks. This also includes SoC
drivers for their RTKit IPC and for the SART DMA address filter.
For other subsystems that merge their drivers through the SoC tree,
we have
- Firmware drivers for the ARM firmware stack including TEE, OP-TEE,
SCMI and FF-A get a number of smaller updates and cleanups. OP-TEE
now has a cache for firmware argument structures as an optimization,
and SCMI now supports the 3.1 version of the specification.
- Reset controller updates to Amlogic, ASpeed, Renesas and ACPI drivers
- Memory controller updates for Tegra, and a few updates for other
platforms.
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Merge tag 'arm-drivers-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM driver updates from Arnd Bergmann:
"There are minor updates to SoC specific drivers for chips by Rockchip,
Samsung, NVIDIA, TI, NXP, i.MX, Qualcomm, and Broadcom.
Noteworthy driver changes include:
- Several conversions of DT bindings to yaml format.
- Renesas adds driver support for R-Car V4H, RZ/V2M and RZ/G2UL SoCs.
- Qualcomm adds a bus driver for the SSC (Snapdragon Sensor Core),
and support for more chips in the RPMh power domains and the
soc-id.
- NXP has a new driver for the HDMI blk-ctrl on i.MX8MP.
- Apple M1 gains support for the on-chip NVMe controller, making it
possible to finally use the internal disks. This also includes SoC
drivers for their RTKit IPC and for the SART DMA address filter.
For other subsystems that merge their drivers through the SoC tree, we
have
- Firmware drivers for the ARM firmware stack including TEE, OP-TEE,
SCMI and FF-A get a number of smaller updates and cleanups. OP-TEE
now has a cache for firmware argument structures as an
optimization, and SCMI now supports the 3.1 version of the
specification.
- Reset controller updates to Amlogic, ASpeed, Renesas and ACPI
drivers
- Memory controller updates for Tegra, and a few updates for other
platforms"
* tag 'arm-drivers-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (159 commits)
memory: tegra: Add MC error logging on Tegra186 onward
memory: tegra: Add memory controller channels support
memory: tegra: Add APE memory clients for Tegra234
memory: tegra: Add Tegra234 support
nvme-apple: fix sparse endianess warnings
soc/tegra: pmc: Document core domain fields
soc: qcom: pdr: use static for servreg_* variables
soc: imx: fix semicolon.cocci warnings
soc: renesas: R-Car V3U is R-Car Gen4
soc: imx: add i.MX8MP HDMI blk-ctrl
soc: imx: imx8m-blk-ctrl: Add i.MX8MP media blk-ctrl
soc: imx: add i.MX8MP HSIO blk-ctrl
soc: imx: imx8m-blk-ctrl: set power device name
soc: qcom: llcc: Add sc8180x and sc8280xp configurations
dt-bindings: arm: msm: Add sc8180x and sc8280xp LLCC compatibles
soc/tegra: pmc: Select REGMAP
dt-bindings: reset: st,sti-powerdown: Convert to yaml
dt-bindings: reset: st,sti-picophyreset: Convert to yaml
dt-bindings: reset: socfpga: Convert to yaml
dt-bindings: reset: snps,axs10x-reset: Convert to yaml
...
These updates are for platform specific code in arch/arm/, mostly fixing
minor issues. The at91 platform gains support for better power
management on the lan966 platform and new firmware on the sama5
platform. The mediatek soc drivers in turn are enabled for the new
mt8195 SoC.
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Merge tag 'arm-soc-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull 32-bit ARM SoC updates from Arnd Bergmann:
"These updates are for platform specific code in arch/arm/, mostly
fixing minor issues.
The at91 platform gains support for better power management on the
lan966 platform and new firmware on the sama5 platform. The mediatek
soc drivers in turn are enabled for the new mt8195 SoC"
* tag 'arm-soc-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (34 commits)
ARM: at91: debug: add lan966 support
ARM: at91: pm: add support for sama5d2 secure suspend
ARM: at91: add code to handle secure calls
ARM: at91: Kconfig: implement PIT64B selection
ARM: at91: pm: add quirks for pm
ARM: at91: pm: use kernel documentation style
ARM: at91: pm: introduce macros for pm mode replacement
ARM: at91: pm: keep documentation inline with structure members
orion5x: fix typos in comments
ARM: hisi: Add missing of_node_put after of_find_compatible_node
ARM: shmobile: rcar-gen2: Drop comma after OF match table sentinel
ARM: shmobile: Drop commas after dt_compat sentinels
soc: mediatek: mutex: remove mt8195 MOD0 and SOF0 definition
MAINTAINERS: Add Broadcom BCMBCA entry
arm: bcmbca: add arch bcmbca machine entry
MAINTAINERS: Broadcom internal lists aren't maintainers
dt-bindings: pwrap: mediatek: Update pwrap document for mt8195
soc: mediatek: add DDP_DOMPONENT_DITHER0 enum for mt8195 vdosys0
soc: mediatek: add mtk-mutex support for mt8195 vdosys0
soc: mediatek: add mtk-mmsys support for mt8195 vdosys0
...
Nexus 7 Android tablet can be turned off using a special bootloader
command which is conveyed to bootloader by putting magic value into the
special scratch register and then rebooting normally. This power-off
method should be invoked if USB cable is connected. Bootloader then will
display battery status and power off the device. This behaviour is
borrowed from downstream kernel and matches user expectations, otherwise
it looks like device got hung during power-off and it may wake up on
USB disconnect.
Switch PMC driver to sys-off handler API, which provides drivers with
chained power-off callbacks functionality that is required for powering-off
devices properly. It also brings resource-managed API for the restart
handler registration that makes PMC driver code cleaner.
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
As per the current implementation only single callback data gets saved per
event, driver is throwing an error if try to register multiple callback for
same event. So at time of unregistration of any event required things are
event details and callback handler as parameter of xlnx_unregister_event().
As part of adding support of multiple callbacks for same event also require
change in prototype of xlnx_unregister_event().
During unregistration of any events, now required things are event details,
callback handler and agent's private data as parameter of
xlnx_unregister_event().
Also modify the usage of xlnx_unregister_event() in xilinx/zynqmp_power.c
driver as per new implementation.
Signed-off-by: Abhyuday Godhasara <abhyuday.godhasara@xilinx.com>
Link: https://lore.kernel.org/r/20220427074803.19009-3-abhyuday.godhasara@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As per the current implementation of only single callback data gets
saved per event, driver is throwing an error if try to register multiple
callback for same event.
Add support of multiple callbacks data for same event. So agent can
register for same event with multiple callbacks. Here event management
driver will store the callbacks as list in Hash table entry for that event.
Here each callback data contain 2 element as callback handler and private
data of agent driver.
Signed-off-by: Abhyuday Godhasara <abhyuday.godhasara@xilinx.com>
Link: https://lore.kernel.org/r/20220427074803.19009-2-abhyuday.godhasara@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Detailed description for this pull request:
1. Update devfreq core
- Add cpu based scaling support to passive governor. Some device like
cache might require the dynamic frequency scaling. But, it has very
tightly to cpu frequency. So that use passive governor to scale
the frequency according to current cpu frequency.
To decide the frequency of the device, the governor does one of the following:
: Derives the optimal devfreq device opp from required-opps property of
the parent cpu opp_table.
: Scales the device frequency in proportion to the CPU frequency. So, if
the CPUs are running at their max frequency, the device runs at its
max frequency. If the CPUs are running at their min frequency, the
device runs at its min frequency. It is interpolated for frequencies
in between.
2. Update devfreq driver
- Update rk3399_dmc.c as following:
: Convert dt-binding document to YAML and deprecate unused properties.
: Use Hz units for the device-tree properties of rk3399_dmc.
: rk3399_dmc is able to set the idle time before changing the dmc clock.
Specify idle time parameters by using nano-second unit on dt bidning.
: Add new disable-freq properties to optimize the power-saving feature
of rk3399_dmc.
: Disable devfreq-event device on remove() to fix unbalanced
enable-disable count.
: Use devm_pm_opp_of_add_table()
: Block PMU (Power-Management Unit) transitions when scaling frequency
by ARM Trust Firmware in order to fix the conflict between PMU and DMC
(Dynamic Memory Controller).
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Merge tag 'devfreq-next-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux
Pull devfreq changes for 5.19-rc1 from Chanwoo Choi:
"1. Update devfreq core
- Add cpu based scaling support to passive governor. Some device like
cache might require the dynamic frequency scaling. But, it has very
tightly to cpu frequency. So that use passive governor to scale
the frequency according to current cpu frequency.
To decide the frequency of the device, the governor does one of the following:
: Derives the optimal devfreq device opp from required-opps property of
the parent cpu opp_table.
: Scales the device frequency in proportion to the CPU frequency. So, if
the CPUs are running at their max frequency, the device runs at its
max frequency. If the CPUs are running at their min frequency, the
device runs at its min frequency. It is interpolated for frequencies
in between.
2. Update devfreq drivers
- Update rk3399_dmc.c as following:
: Convert dt-binding document to YAML and deprecate unused properties.
: Use Hz units for the device-tree properties of rk3399_dmc.
: rk3399_dmc is able to set the idle time before changing the dmc clock.
Specify idle time parameters by using nano-second unit on dt bidning.
: Add new disable-freq properties to optimize the power-saving feature
of rk3399_dmc.
: Disable devfreq-event device on remove() to fix unbalanced
enable-disable count.
: Use devm_pm_opp_of_add_table()
: Block PMU (Power-Management Unit) transitions when scaling frequency
by ARM Trust Firmware in order to fix the conflict between PMU and DMC
(Dynamic Memory Controller)."
* tag 'devfreq-next-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux:
PM / devfreq: passive: Keep cpufreq_policy for possible cpus
PM / devfreq: passive: Reduce duplicate code when passive_devfreq case
PM / devfreq: Add cpu based scaling support to passive governor
PM / devfreq: Export devfreq_get_freq_range symbol within devfreq
PM / devfreq: rk3399_dmc: Block PMU during transitions
soc: rockchip: power-domain: Manage resource conflicts with firmware
PM / devfreq: rk3399_dmc: Avoid static (reused) profile
PM / devfreq: rk3399_dmc: Use devm_pm_opp_of_add_table()
PM / devfreq: rk3399_dmc: Disable edev on remove()
PM / devfreq: rk3399_dmc: Support new *-ns properties
PM / devfreq: rk3399_dmc: Support new disable-freq properties
PM / devfreq: rk3399_dmc: Use bitfield macro definitions for ODT_PD
PM / devfreq: rk3399_dmc: Drop excess timing properties
PM / devfreq: rk3399_dmc: Drop undocumented ondemand DT props
dt-bindings: devfreq: rk3399_dmc: Add more disable-freq properties
dt-bindings: devfreq: rk3399_dmc: Specify idle params in nanoseconds
dt-bindings: devfreq: rk3399_dmc: Fix Hz units
dt-bindings: devfreq: rk3399_dmc: Deprecate unused/redundant properties
dt-bindings: devfreq: rk3399_dmc: Convert to YAML
of_find_matching_node_and_match returns a node pointer with refcount
incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.
Fixes: 4c58063d42 ("soc: rockchip: add driver handling grf setup")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220516072013.19731-1-linmq006@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This converts a wide range of Qualcomm-related DeviceTree bindings to
YAML, in order to improve our ability to validate the DeviceTree source.
The RPMh power-domain driver gains support for the modem platform SDX65,
the compute platform SC8280XP and the automotive platform SA8540p. While
LLCC gains support for SC8180X and SC8280XP and gains a
MODULE_DEVICE_TABLE() to make it functional as a module.
It adds a driver for configuring the SSC bus, providing Linux access to
the hardware blocks in the sensor subsystem.
The socinfo driver gets confusion related to MSM8974 Pro sorted out and
adds new ids for SM8540 and SC7280.
The SCM driver gains support for MSM8974.
Add missing of_node_put() in smp2p and smsm drivers.
Stop using iterator after list_for_each_entry() and define static
definitions as such, in the PDR driver.
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Merge tag 'qcom-drivers-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/drivers
Qualcomm driver updates for v5.19
This converts a wide range of Qualcomm-related DeviceTree bindings to
YAML, in order to improve our ability to validate the DeviceTree source.
The RPMh power-domain driver gains support for the modem platform SDX65,
the compute platform SC8280XP and the automotive platform SA8540p. While
LLCC gains support for SC8180X and SC8280XP and gains a
MODULE_DEVICE_TABLE() to make it functional as a module.
It adds a driver for configuring the SSC bus, providing Linux access to
the hardware blocks in the sensor subsystem.
The socinfo driver gets confusion related to MSM8974 Pro sorted out and
adds new ids for SM8540 and SC7280.
The SCM driver gains support for MSM8974.
Add missing of_node_put() in smp2p and smsm drivers.
Stop using iterator after list_for_each_entry() and define static
definitions as such, in the PDR driver.
* tag 'qcom-drivers-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (33 commits)
soc: qcom: pdr: use static for servreg_* variables
soc: qcom: llcc: Add sc8180x and sc8280xp configurations
dt-bindings: arm: msm: Add sc8180x and sc8280xp LLCC compatibles
soc: qcom: rpmhpd: add sc8280xp & sa8540p rpmh power-domains
soc: qcom: rpmhpd: Don't warn about sparse rpmhpd arrays
dt-bindings: power: rpmpd: Add sc8280xp RPMh power-domains
spi: dt-bindings: qcom,spi-geni-qcom: convert to dtschema
soc: qcom: socinfo: Sort out 8974PRO names
dt-bindings: soc: qcom,smp2p: convert to dtschema
dt-bindings: qcom: geni-se: Update UART schema reference
dt-bindings: qcom: geni-se: Update I2C schema reference
dt-bindings: soc: qcom,rpmh-rsc: convert to dtschema
bus: add driver for initializing the SSC bus on (some) qcom SoCs
dt-bindings: bus: add device tree bindings for qcom,ssc-block-bus
dt-bindings: qcom: qcom,geni-se: refer to dtschema for SPI
dt-bindings: soc: qcom,smd: convert to dtschema
firmware: qcom_scm: Add compatible for MSM8976 SoC
dt-bindings: firmware: qcom-scm: Document msm8976 bindings
soc: qcom: smem: validate fields of shared structures
soc: qcom: smem: map only partitions used by local HOST
...
Link: https://lore.kernel.org/r/20220509181839.316655-1-bjorn.andersson@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- A series from Lucas and Paul to update GPCv2 driver for i.MX8MP power
domains, and add HSIO and HDMI block control support.
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Merge tag 'imx-drivers-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers
i.MX drivers update for 5.19:
- A series from Lucas and Paul to update GPCv2 driver for i.MX8MP power
domains, and add HSIO and HDMI block control support.
* tag 'imx-drivers-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
soc: imx: fix semicolon.cocci warnings
soc: imx: add i.MX8MP HDMI blk-ctrl
soc: imx: imx8m-blk-ctrl: Add i.MX8MP media blk-ctrl
soc: imx: add i.MX8MP HSIO blk-ctrl
dt-bindings: power: imx8mp: add defines for HDMI blk-ctrl domains
dt-bindings: soc: Add i.MX8MP media block control DT bindings
soc: imx: imx8m-blk-ctrl: set power device name
soc: imx: gpcv2: add support for i.MX8MP power domains
soc: imx: gpcv2: add PGC control register indirection
Link: https://lore.kernel.org/r/20220508033843.2773685-2-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* wkup_m3: io isolation, voltage scaling, vtt regulator and a debug option to stop m3 in suspend.
* tisci: support for polled mode for system suspend, reset driver is now enabled for COMPILE_TEST
* knav, dma.. misc cleanups for IS_ERR, pm_run_time*, and various other fixups.
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Merge tag 'ti-driver-soc-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ti/linux into arm/drivers
TI Driver updates for v5.19
* wkup_m3: io isolation, voltage scaling, vtt regulator and a debug option to stop m3 in suspend.
* tisci: support for polled mode for system suspend, reset driver is now enabled for COMPILE_TEST
* knav, dma.. misc cleanups for IS_ERR, pm_run_time*, and various other fixups.
* tag 'ti-driver-soc-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/ti/linux:
soc: ti: wkup_m3_ipc: Add debug option to halt m3 in suspend
soc: ti: wkup_m3_ipc: Add support for i2c voltage scaling
soc: ti: wkup_m3_ipc: Add support for IO Isolation
soc: ti: knav_qmss_queue: Use IS_ERR instead of IS_ERR_OR_NULL when checking knav_queue_open() result
soc: ti: pm33xx: using pm_runtime_resume_and_get instead of pm_runtime_get_sync
firmware: ti_sci: Switch transport to polled mode during system suspend
soc: ti: wkup_m3_ipc: Add support for toggling VTT regulator
soc: ti: knav_qmss_queue: Use pm_runtime_resume_and_get instead of pm_runtime_get_sync
soc: ti: knav_dma: Use pm_runtime_resume_and_get instead of pm_runtime_get_sync
reset: ti-sci: Allow building under COMPILE_TEST
soc: ti: ti_sci_pm_domains: Check for null return of devm_kcalloc
soc: ti: omap_prm: Use of_device_get_match_data()
soc: ti: pruss: using pm_runtime_resume_and_get instead of pm_runtime_get_sync
soc: ti: replace usage of found with dedicated list iterator variable
soc: ti: wkup_m3_ipc: fix platform_get_irq.cocci warning
Link: https://lore.kernel.org/r/20220507163424.pvqnwrxpoo73lmp2@debtless
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
On RK3399 platforms, power domains are managed mostly by the kernel
(drivers/soc/rockchip/pm_domains.c), but there are a few exceptions
where ARM Trusted Firmware has to be involved:
(1) system suspend/resume
(2) DRAM DVFS (a.k.a., "ddrfreq")
Exception (1) does not cause much conflict, since the kernel has
quiesced itself by the time we make the relevant PSCI call.
Exception (2) can cause conflict, because of two actions:
(a) ARM Trusted Firmware needs to read/modify/write the PMU_BUS_IDLE_REQ
register to idle the memory controller domain; the kernel driver
also has to touch this register for other domains.
(b) ARM Trusted Firmware needs to manage the clocks associated with
these domains.
To elaborate on (b): idling a power domain has always required ungating
an array of clocks; see this old explanation from Rockchip:
https://lore.kernel.org/linux-arm-kernel/54503C19.9060607@rock-chips.com/
Historically, ARM Trusted Firmware has avoided this issue by using a
special PMU_CRU_GATEDIS_CON0 register -- this register ungates all the
necessary clocks -- when idling the memory controller. Unfortunately,
we've found that this register is not 100% sufficient; it does not turn
the relevant PLLs on [0].
So it's possible to trigger issues with something like the following:
1. enable a power domain (e.g., RK3399_PD_VDU) -- kernel will
temporarily enable relevant clocks/PLLs, then turn them back off
2. a PLL (e.g., PLL_NPLL) is part of the clock tree for
RK3399_PD_VDU's clocks but otherwise unused; NPLL is disabled
3. perform a ddrfreq transition (rk3399_dmcfreq_target() -> ...
drivers/clk/rockchip/clk-ddr.c / ROCKCHIP_SIP_DRAM_FREQ)
4. ARM Trusted Firmware unagates VDU clocks (via PMU_CRU_GATEDIS_CON0)
5. ARM Trusted firmware idles the memory controller domain
6. Step 5 waits on the VDU domain/clocks, but NPLL is still off
i.e., we hang the system.
So for (b), we need to at a minimum manage the relevant PLLs on behalf
of firmware. It's easier to simply manage the whole clock tree, in a
similar way we do in rockchip_pd_power().
For (a), we need to provide mutual exclusion betwen rockchip_pd_power()
and firmware. To resolve that, we simply grab the PMU mutex and release
it when ddrfreq is done.
The Chromium OS kernel has been carrying versions of part of this hack
for a while, based on some new custom notifiers [1]. I've rewritten as a
simple function call between the drivers, which is OK because:
* the PMU driver isn't enabled, and we don't have this problem at all
(the firmware should have left us in an OK state, and there are no
runtime conflicts); or
* the PMU driver is present, and is a single instance.
And the power-domain driver cannot be removed, so there's no lifetime
management to worry about.
For completeness, there's a 'dmc_pmu_mutex' to guard (likely
theoretical?) probe()-time races. It's OK for the memory controller
driver to start running before the PMU, because the PMU will avoid any
critical actions during the block() sequence.
[0] The RK3399 TRM for PMU_CRU_GATEDIS_CON0 only talks about ungating
clocks. Based on experimentation, we've found that it does not power
up the necessary PLLs.
[1] CHROMIUM: soc: rockchip: power-domain: Add notifier to dmc driver
https://chromium-review.googlesource.com/q/I242dbd706d352f74ff706f5cbf42ebb92f9bcc60
Notably, the Chromium solution only handled conflict (a), not (b).
In practice, item (b) wasn't a problem in many cases because we
never managed to fully power off PLLs. Now that the (upstream) video
decoder driver performs runtime clock management, we often power off
NPLL.
Signed-off-by: Brian Norris <briannorris@chromium.org>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
There are two drivers in arch/arm/plat-pxa: mfp and ssp. Both
of them should ideally not be needed at all, as there are
proper subsystems to replace them.
OTOH, they are self-contained and can simply be normal
SoC drivers, so move them over there to eliminate one more
of the plat-* directories.
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> (mach-pxa)
Acked-by: Lubomir Rintel <lkundrak@v3.sk> (mach-mmp)
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This set of changes adds nvmem cell lookup entries for Tegra194 that are
used to read calibration data from the SoC fuses, and updates the reset
sources for Tegra234.
Other than that, included is a minor build fix for a missing dependency
that can be encountered very rarely in random config builds. Lastly some
kerneldoc comments are added to avoid build warnings.
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Merge tag 'tegra-for-5.19-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers
soc/tegra: Changes for v5.19-rc1
This set of changes adds nvmem cell lookup entries for Tegra194 that are
used to read calibration data from the SoC fuses, and updates the reset
sources for Tegra234.
Other than that, included is a minor build fix for a missing dependency
that can be encountered very rarely in random config builds. Lastly some
kerneldoc comments are added to avoid build warnings.
* tag 'tegra-for-5.19-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
soc/tegra: pmc: Document core domain fields
soc/tegra: pmc: Select REGMAP
soc/tegra: pmc: Update Tegra234 reset sources
soc/tegra: fuse: Add nvmem cell lookup entries for Tegra194
Link: https://lore.kernel.org/r/20220506143005.3916655-2-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
These fields are used to track the state of the core domain. Add basic
descriptions so that kerneldoc can be properly generated for them.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Sparse reports this repesentative issue
pdr_internal.h:31:22: warning: symbol 'servreg_location_entry_ei' was not declared. Should it be static?
Similar for other servreg_*
Global variables should not be defined in header files.
This only works because pdr_internal.h is only included
by pdr_interface.c. Single file use variables should be
static so add static to their storage-class specifiers.
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220422173806.21982-1-trix@redhat.com
- RTKit IPC library required to boot and communicate with
co-processors embedded inside Apple SoCs
- SART DMA address filter required to allow some DMA transactions for
the NVMe co-processor
- NVMe platform driver
The following minor changes since v3 on the mailing list have been
folded in:
- sart: %llx -> %pa for a phys_addr_t
- rtkit:/sart: Drop IS_ENABLED inside headers
- rtkit: Use EXPORT_SYMBOL_GPL instead of EXPORT_SYMBOL
- nvme: Set NVME_REQ_CANCELLED in the timeout handler
- nvme: Use DEFINE_SIMPLE_DEV_PM_OPS instead of #ifdef CONFIG_PM_SLEEP
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Merge tag 'asahi-soc-rtkit-sart-nvme-for-5.19' of https://github.com/AsahiLinux/linux into arm/drivers
Apple SoC NVMe driver and dependencies:
- RTKit IPC library required to boot and communicate with
co-processors embedded inside Apple SoCs
- SART DMA address filter required to allow some DMA transactions for
the NVMe co-processor
- NVMe platform driver
The following minor changes since v3 on the mailing list have been
folded in:
- sart: %llx -> %pa for a phys_addr_t
- rtkit:/sart: Drop IS_ENABLED inside headers
- rtkit: Use EXPORT_SYMBOL_GPL instead of EXPORT_SYMBOL
- nvme: Set NVME_REQ_CANCELLED in the timeout handler
- nvme: Use DEFINE_SIMPLE_DEV_PM_OPS instead of #ifdef CONFIG_PM_SLEEP
* tag 'asahi-soc-rtkit-sart-nvme-for-5.19' of https://github.com/AsahiLinux/linux:
nvme-apple: Add initial Apple SoC NVMe driver
dt-bindings: nvme: Add Apple ANS NVMe
soc: apple: Add SART driver
dt-bindings: iommu: Add Apple SART DMA address filter
soc: apple: Add RTKit IPC library
soc: apple: Always include Makefile
Link: https://lore.kernel.org/r/20220505154020.84638-1-sven@svenpeter.dev
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
5.19, please pull the following:
- Qintao adds a missing NULL check to the Broadcom PMB driver after a
memory allocation
- Li removes the redundant suppress_bind_attrs from the brcmstb_gisb
driver which only has a probe and no remove function
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Merge tag 'arm-soc/for-5.19/drivers' of https://github.com/Broadcom/stblinux into arm/drivers
This pull request contains Broadcom ARM/ARM64 SoCs drivers changes for
5.19, please pull the following:
- Qintao adds a missing NULL check to the Broadcom PMB driver after a
memory allocation
- Li removes the redundant suppress_bind_attrs from the brcmstb_gisb
driver which only has a probe and no remove function
* tag 'arm-soc/for-5.19/drivers' of https://github.com/Broadcom/stblinux:
bus: brcmstb_gisb: Remove the suppress_bind_attrs attribute of the driver
soc: bcm: Check for NULL return of devm_kzalloc()
Link: https://lore.kernel.org/r/20220504210942.1838248-4-f.fainelli@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This adds driver support for the HDMI blk-ctrl found on the
i.MX8MP SoC.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Add the description for the i.MX8MP media blk-ctrl.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Tested-by: Marek Vasut <marex@denx.de> # MX8MP LCDIF #1 and #2
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
The i.MX8MP added some blk-ctrl peripherals that don't follow the regular
structure of the blk-ctrls in the previous SoCs. Add a new file for those
with currently only the HSIO blk-ctrl being supported. Others will be added
later on.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Set the name for the virtual power device to the name of the attached
blk-ctrl domain. Makes the debug output for the power domains a lot
more pleasant to read.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Commit 9d5e7c3e36 ("soc/tegra: pmc: Provide USB sleepwalk register
map") introduced a dependency on the regmap infrastructure, so select
the corresponding Kconfig entry. This avoids failures in random builds
that may otherwise end up having SOC_TEGRA_PMC enabled but not REGMAP.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add a debugfs option to allow configurable halting of the wkup_m3
during suspend at the last possible point before low power mode entry.
This condition can only be resolved through JTAG and advancing beyond
the while loop in a8_lp_ds0_handler [1]. Although this hangs the system
it forces the system to remain active once it has been entirely
configured for low power mode entry, allowing for register inspection
through JTAG to help in debugging transition errors.
Halt mode can be set using the enable_off_mode entry under wkup_m3_ipc
in the debugfs.
[1] https://git.ti.com/cgit/processor-firmware/ti-amx3-cm3-pm-firmware/tree/src/pm_services/pm_handlers.c?h=08.02.00.006#n141
Suggested-by: Brad Griffis <bgriffis@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
[dfustini: add link for a8_lp_ds0_handler() in ti-amx3-cm3-pm-firmware]
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20220502033211.1383158-1-dfustini@baylibre.com
Allow loading of a binary containing i2c scaling sequences to be
provided to the wkup_m3 firmware in order to properly scale voltage
rails on the PMIC during low power modes like DeepSleep0. Proper binary
format is determined by the FW in use.
Code expects firmware to have 0x0C57 present as the first two bytes
followed by one byte defining offset to sleep sequence followed by one
byte defining offset to wake sequence and then lastly both sequences.
Each sequence is a series of I2C transfers in the form:
u8 length | u8 chip address | u8 byte0/reg address | u8 byte1 | u8 byteN
..
The length indicates the number of bytes to transfer, including the
register address. The length of each transfer is limited by the I2C
buffer size of 32 bytes.
Based on previous work by Russ Dill.
[dfustini: replace FW_ACTION_HOTPLUG with FW_ACTION_UEVENT]
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
[dfustini: add NULL argument to rproc_da_to_va() call]
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20220426200741.712842-3-dfustini@baylibre.com
AM43xx support isolation of the IOs so that control is taken
from the peripheral they are connected to and overridden by values
present in the CTRL_CONF_* registers for the pad in the control module.
The actual toggling happens from the wkup_m3, so use a DT property from
the wkup_m3_ipc node to allow the PM code to communicate the necessity
for placing the IOs into isolation to the firmware.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20220414192722.2978837-3-dfustini@baylibre.com
As the usage of knav_queue_open():
* Returns a handle to the open hardware queue if successful. Use IS_ERR()
* to check the returned value for error codes.
It will only return error codes, not null.
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/1650765944-20170-1-git-send-email-baihaowen@meizu.com
Using pm_runtime_resume_and_get is more appropriate
for simplifing code
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tony Lindgren <tony@aotmide.com>
Link: https://lore.kernel.org/r/20220418063059.2558074-1-chi.minghao@zte.com.cn
The NVMe co-processor on the Apple M1 uses a DMA address filter called
SART for some DMA transactions. This adds a simple driver used to
configure the memory regions from which DMA transactions are allowed.
Unlike a real IOMMU, SART does not support any pagetables and can't be
implemented inside the IOMMU subsystem using iommu_ops.
It also can't be implemented using dma_map_ops since not all DMA
transactions of the NVMe controller are filtered by SART.
Instead, most buffers have to be registered using the integrated NVMe
IOMMU and we can't have two separate dma_map_ops implementations for a
single device.
Co-developed-by: Hector Martin <marcan@marcan.st>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Apple SoCs such as the M1 come with multiple embedded co-processors
running proprietary firmware. Communication with those is established
over a simple mailbox using the RTKit IPC protocol.
This cannot be implemented inside the mailbox subsystem since on top
of communication over channels we also need support for starting,
hibernating and resetting these co-processors. We also need to
handle shared memory allocations differently depending on the
co-processor and don't want to split that across multiple drivers.
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
We want to allow the code inside drivers/soc/apple to be compiled with
COMPILE_TEST but this will currently result in linking errors because
ARCH_APPLE is not set and make will never recurse into
drivers/soc/apple.
Let's just unconditionally recurse into apple/ since all drivers
in there are guarded by config options anyways.
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Similar to commit 7f94b69ece ("ARM: ixp4xx: fix compile-testing soc
drivers").
drivers/soc/rockchip/Kconfig makes plenty of provision for configuring
drivers either for ARCH_ROCKCHIP or for COMPILE_TEST. But
drivers/soc/Makefile pulls the rug out from under us, by refusing to
build anything if we specified COMPILE_TEST but not ARCH_ROCKCHIP.
Currently, I'm not aware of anything that breaks without this patch, but
it certainly makes for confusing builds (CONFIG_ROCKCHIP_PM_DOMAINS=y,
but we didn't actually compile the driver?) and leaves room for future
error (I have pending patches that break confusingly with COMPILE_TEST=y
even though their Kconfig dependencies seem correct [1]).
Defer to drivers/soc/rockchip/{Makefile,Kconfig} to do the right thing.
[1] e.g.,
https://lore.kernel.org/linux-rockchip/20220405184816.RFC.2.I2d73b403944f0b8b5871a77585b73f31ccc62999@changeid/
[RFC PATCH 2/2] PM / devfreq: rk3399_dmc: Block PMU during transitions
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220425184503.v3.3.Id5f16dec920f620120c0a143a97a12e16d401760@changeid
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
It's unclear if these are really needed at all, but seemingly their
purpose is only as a write barrier. Use the general macro instead of the
ARM-specific one.
This driver is partially marked for COMPILE_TEST'ing, but it doesn't
build under non-ARM architectures. Fix this up before *really* enabling
it for COMPILE_TEST.
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220426014545.628100-2-briannorris@chromium.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
There are spaces instead of tabs, and other inconsistent indentation.
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220426014545.628100-1-briannorris@chromium.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The Qualcomm sc8280xp platform has 13 and the sa8540p platform has 11
power-domains. Add compatibles, the typically used ones power-domains
and their relevant active-only variants, to the RPMh power-domain
driver.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20220426233508.1762345-4-bjorn.andersson@linaro.org
In some cases the DT binding will fully describe the set of available
RPMh power-domains, but there is no reason for exposing them all in the
implementation.
Omitting individual data->domains is handle gracefully by
of_genpd_add_provider_onecell(), so there's no reason for printing a
warning when this occurs.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20220426233508.1762345-3-bjorn.andersson@linaro.org
PM and PM_GENERIC_DOMAINS configs are required for RZ/N1 SOCs.
Without these configs, the clocks used by the PCI bridge are not
enabled and so accessing the devices leads to a kernel crash:
Unhandled fault: external abort on non-linefetch (0x1008) at 0x90b5f848
Select PM and PM_GENERIC_DOMAINS for ARCH_RZN1
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/20220422120850.769480-5-herve.codina@bootlin.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
As the potential failure of allocation, devm_kzalloc() may return NULL. Then
the 'pd->pmb' and the follow lines of code may bring null pointer dereference.
Therefore, it is better to check the return value of devm_kzalloc() to avoid
this confusion.
Fixes: 8bcac4011e ("soc: bcm: add PM driver for Broadcom's PMB")
Signed-off-by: QintaoShen <unSimple1993@163.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Linus Torvalds
QintaoShen