linux-stable.git/drivers/soc/tegra, branch v6.0 Linux kernel stable tree soc/tegra: Migrate to dev_pm_opp_set_config() 2022-07-08T05:57:33+00:00 Viresh Kumar viresh.kumar@linaro.org 2022-05-25T11:30:51+00:00 25a18559b8ae4f6491e189483fb00f7de0a0d2d8 The OPP core now provides a unified API for setting all configuration types, i.e. dev_pm_opp_set_config(). Lets start using it. Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> 
The OPP core now provides a unified API for setting all configuration
types, i.e. dev_pm_opp_set_config().

Lets start using it.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
soc/tegra: Add comment over devm_pm_opp_set_clkname() 2022-07-08T05:57:33+00:00 Viresh Kumar viresh.kumar@linaro.org 2022-06-24T00:28:56+00:00 a6db3b92323a0005b8685864be74262729780d5e Explain why special handling was required here, it isn't obvious at all. Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> 
Explain why special handling was required here, it isn't obvious at all.

Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
OPP: Make dev_pm_opp_set_regulators() accept NULL terminated list 2022-07-08T05:56:44+00:00 Viresh Kumar viresh.kumar@linaro.org 2022-07-04T10:40:39+00:00 87686cc845c3be7dea777f1dbf2de0767007cda8 Make dev_pm_opp_set_regulators() accept a NULL terminated list of names instead of making the callers keep the two parameters in sync, which creates an opportunity for bugs to get in. Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Steven Price <steven.price@arm.com> # panfrost Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> 
Make dev_pm_opp_set_regulators() accept a NULL terminated list of names
instead of making the callers keep the two parameters in sync, which
creates an opportunity for bugs to get in.

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Steven Price <steven.price@arm.com> # panfrost
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Merge tag 'pm-5.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm 2022-05-30T18:37:26+00:00 Linus Torvalds torvalds@linux-foundation.org 2022-05-30T18:37:26+00:00 1ff7bc3ba71d398d349c49103a3da34bb4ea02d1 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() ... 
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()
  ...
soc/tegra: pmc: Use sys-off handler API to power off Nexus 7 properly 2022-05-19T17:30:31+00:00 Dmitry Osipenko dmitry.osipenko@collabora.com 2022-05-09T23:32:33+00:00 eae813b755c46c74d65f52fa6b0b1a5476e13551 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> 
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>
soc/tegra: pmc: Document core domain fields 2022-05-06T08:53:19+00:00 Thierry Reding treding@nvidia.com 2022-05-06T08:53:15+00:00 d3a20dcbca4880ada8974b2d0167df99161bbfaf 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> 
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>
soc/tegra: pmc: Select REGMAP 2022-05-04T09:09:49+00:00 Thierry Reding treding@nvidia.com 2022-05-04T09:08:14+00:00 9767d1be1529c40469d1bbdc457953f88fa1dca7 Commit 9d5e7c3e36eb ("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> 
Commit 9d5e7c3e36eb ("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>
soc/tegra: pmc: Update Tegra234 reset sources 2022-04-06T13:03:23+00:00 Sandipan Patra spatra@nvidia.com 2022-04-01T14:33:43+00:00 d3ed7526543db9d26341b9df97064b332262b626 Update the tegra234_reset_sources array to contain all reset sources for Tegra234 and NULL out the entries that do not actually exist. Signed-off-by: Sandipan Patra <spatra@nvidia.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Update the tegra234_reset_sources array to contain all reset sources for
Tegra234 and NULL out the entries that do not actually exist.

Signed-off-by: Sandipan Patra <spatra@nvidia.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
soc/tegra: fuse: Add nvmem cell lookup entries for Tegra194 2022-04-06T12:55:50+00:00 Sagar Kamble skamble@nvidia.com 2022-03-24T12:08:48+00:00 942501661fa65f13bf9b5582e8248e92770b2d93 Add nvmem cell lookup entries for below FUSE cells: - gcplex-config-fuse - pdi0 - pdi1 Also include the device name prefix "gpu-" in the names of the GPU FUSE cells in nvmem_cell_info. Signed-off-by: Sagar Kamble <skamble@nvidia.com> Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Add nvmem cell lookup entries for below FUSE cells:
 - gcplex-config-fuse
 - pdi0
 - pdi1

Also include the device name prefix "gpu-" in the names of the GPU FUSE
cells in nvmem_cell_info.

Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
soc/tegra: pmc: Add Tegra234 wake events 2022-02-25T13:08:46+00:00 kartik kkartik@nvidia.com 2022-01-25T05:57:42+00:00 194217df813a78234130576eaabbfe2524eae70c Enable the Tegra RTC alarm and power key wake-ups for Tegra234 Signed-off-by: kartik <kkartik@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> 
Enable the Tegra RTC alarm and power key wake-ups for Tegra234

Signed-off-by: kartik <kkartik@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>