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f0d64f4ae7
linux/drivers/cpufreq
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Stephan Gerhold f0d64f4ae7 cpufreq: qcom-nvmem: Add MSM8909 
When the MSM8909 SoC is used together with the PM8909 PMIC the primary
power supply for the CPU (VDD_APC) is shared with other components to
the SoC, namely the VDD_CX power domain typically supplied by the PM8909
S1 regulator. This means that all votes for necessary performance states
go via the RPM firmware which collects the requirements from all the
processors in the SoC. The RPM firmware then chooses the actual voltage
based on the performance states ("corners"), depending on calibration
values in the NVMEM and other factors.

The MSM8909 SoC is also sometimes used with the PM8916 or PM660 PMIC.
In that case there is a dedicated regulator connected to VDD_APC and
Linux is responsible to do adaptive voltage scaling using CPR (similar
to the existing code for QCS404).

This difference can be described in the device tree, by either assigning
the CPU a power domain from RPMPD or from the CPR driver.

Describe this using "perf" as generic power domain name, which is also
used already for SCMI based platforms.

Also add a simple function that reads the speedbin from a NVMEM cell
and sets it as-is for opp-supported-hw. The actual bit position can be
described in the device tree without additional driver changes.

Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
[ Viresh: Fixed rebase conflict. ]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2023-10-25 14:53:24 +05:30
..
acpi-cpufreq.c cpufreq: acpi: Convert to platform remove callback returning void 2023-07-20 16:02:13 +05:30
amd_freq_sensitivity.c cpufreq: amd_freq_sensitivity: Add missing pci_dev_put() 2022-11-30 19:50:04 +01:00
amd-pstate-trace.c cpufreq: amd-pstate: Add trace for AMD P-State module 2021-12-30 18:51:39 +01:00
amd-pstate-trace.h cpufreq: amd-pstate: Add more tracepoint for AMD P-State module 2022-03-09 19:53:01 +01:00
amd-pstate-ut.c ARM cpufreq updates for 6.6 2023-08-28 14:12:05 +02:00
amd-pstate.c cpufreq: amd-pstate: fix global sysfs attribute type 2023-08-07 19:41:48 +02:00
apple-soc-cpufreq.c cpufreq: apple-soc: Fix an IS_ERR() vs NULL check 2023-03-01 19:34:54 +01:00
armada-8k-cpufreq.c cpufreq: armada-8k: add ap807 support 2023-06-19 09:50:31 +05:30
armada-37xx-cpufreq.c cpufreq: Explicitly include correct DT includes 2023-07-20 16:01:57 +05:30
bmips-cpufreq.c cpufreq: bmips-cpufreq: Use module_init and add module_exit 2022-08-30 13:49:23 +05:30
brcmstb-avs-cpufreq.c cpufreq: brcmstb-avs-cpufreq: Fix -Warray-bounds bug 2023-08-03 11:25:04 +05:30
cppc_cpufreq.c cpufreq: cppc: Set fie_disabled to FIE_DISABLED if fails to create kworker_fie 2023-08-17 14:24:58 +05:30
cpufreq_conservative.c cpufreq: unify show() and store() naming and use __ATTR_XX 2022-03-10 19:55:05 +01:00
cpufreq_governor_attr_set.c cpufreq: Move to_gov_attr_set() to cpufreq.h 2022-02-04 19:22:34 +01:00
cpufreq_governor.c cpufreq: governor: Free dbs_data directly when gov->init() fails 2023-08-29 20:21:35 +02:00
cpufreq_governor.h cpufreq: governor: Use kobject release() method to free dbs_data 2022-04-13 15:22:41 +02:00
cpufreq_ondemand.c cpufreq: ondemand: Use cpumask_var_t for on-stack cpu mask 2022-07-25 20:38:01 +02:00
cpufreq_ondemand.h
cpufreq_performance.c cpufreq: Introduce CPUFREQ_GOV_STRICT_TARGET 2020-11-10 18:31:17 +01:00
cpufreq_powersave.c cpufreq: Introduce CPUFREQ_GOV_STRICT_TARGET 2020-11-10 18:31:17 +01:00
cpufreq_stats.c cpufreq: stats: Improve the performance of cpufreq_stats_create_table() 2023-08-21 20:57:30 +02:00
cpufreq_userspace.c cpufreq: Register governors at core_initcall 2020-07-02 13:03:30 +02:00
cpufreq-dt-platdev.c cpufreq: dt-platdev: add am62p5 to blocklist 2023-10-12 09:10:22 +05:30
cpufreq-dt.c cpufreq: dt: Convert to platform remove callback returning void 2023-07-20 16:02:12 +05:30
cpufreq-dt.h cpufreq: dt: Allow platform specific intermediate callbacks 2020-03-12 15:43:52 +05:30
cpufreq-nforce2.c cpufreq: Avoid creating excessively large stack frames 2020-01-27 10:33:33 +01:00
cpufreq.c cpufreq: Support per-policy performance boost 2023-08-29 20:51:40 +02:00
davinci-cpufreq.c cpufreq: davinci: Convert to platform remove callback returning void 2023-07-20 16:02:13 +05:30
e_powersaver.c cpufreq: e_powersaver: remove unreachable break 2020-10-27 18:42:54 +01:00
elanfreq.c cpufreq: Convert to new X86 CPU match macros 2020-03-24 21:31:27 +01:00
freq_table.c Updates for 6.4 2023-04-20 19:30:01 +02:00
gx-suspmod.c cpufreq: Avoid creating excessively large stack frames 2020-01-27 10:33:33 +01:00
highbank-cpufreq.c cpufreq: Add __init annotation to module init funcs 2022-09-26 11:15:04 +05:30
ia64-acpi-cpufreq.c ia64: fix format string for ia64-acpi-cpu-freq 2021-03-19 17:26:20 +01:00
imx-cpufreq-dt.c cpufreq: imx-cpufreq-dt: Convert to platform remove callback returning void 2023-07-20 16:02:13 +05:30
imx6q-cpufreq.c cpufreq: imx6q: Convert to platform remove callback returning void 2023-07-20 16:02:12 +05:30
intel_pstate.c cpufreq: intel_pstate: set stale CPU frequency to minimum 2023-08-21 21:11:40 +02:00
Kconfig cpufreq: Make CONFIG_CPUFREQ_DT_PLATDEV depend on OF 2023-06-30 09:43:43 +02:00
Kconfig.arm cpufreq: ARM_BRCMSTB_AVS_CPUFREQ cannot be used with ARM_SCMI_CPUFREQ 2023-10-12 09:13:56 +05:30
Kconfig.powerpc
Kconfig.x86 cpufreq: amd-pstate: Add a kernel config option to set default mode 2023-06-21 18:44:56 +02:00
kirkwood-cpufreq.c cpufreq: kirkwood: Convert to platform remove callback returning void 2023-07-20 16:02:13 +05:30
longhaul.c cpufreq: longhaul: Make array speeds static const 2022-11-03 19:13:34 +01:00
longhaul.h
longrun.c cpufreq: Convert to new X86 CPU match macros 2020-03-24 21:31:27 +01:00
loongson2_cpufreq.c cpufreq: loongson2: Remove unused linux/sched.h headers 2021-06-07 17:43:52 +02:00
Makefile Power management updates for 6.3-rc1 2023-02-21 12:13:58 -08:00
maple-cpufreq.c cpufreq: Adjust includes to remove of_device.h 2023-04-13 17:46:35 -05:00
mediatek-cpufreq-hw.c cpufreq: mediatek-hw: Convert to platform remove callback returning void 2023-07-20 16:02:12 +05:30
mediatek-cpufreq.c cpufreq: mediatek-hw: Remove unused define 2023-08-11 06:15:21 +05:30
mvebu-cpufreq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_56.RULE (part 2) 2022-06-10 14:51:35 +02:00
omap-cpufreq.c cpufreq: omap: Convert to platform remove callback returning void 2023-07-20 16:02:14 +05:30
p4-clockmod.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
pasemi-cpufreq.c cpufreq: Prepare cleanup of powerpc's asm/prom.h 2022-04-13 17:18:45 +02:00
pcc-cpufreq.c cpufreq: pcc: Fix the potentinal scheduling delays in target_index() 2023-08-29 20:41:29 +02:00
pmac32-cpufreq.c cpufreq: pmac32: Use of_property_read_reg() to parse "reg" 2023-09-27 16:47:09 +05:30
pmac64-cpufreq.c cpufreq: Adjust includes to remove of_device.h 2023-04-13 17:46:35 -05:00
powernow-k6.c cpufreq: Convert to new X86 CPU match macros 2020-03-24 21:31:27 +01:00
powernow-k7.c cpufreq: Convert to new X86 CPU match macros 2020-03-24 21:31:27 +01:00
powernow-k7.h
powernow-k8.c cpufreq: powernow-k8: Use related_cpus instead of cpus in driver.exit() 2023-08-28 12:27:30 +05:30
powernow-k8.h
powernv-cpufreq.c cpufreq: Introducing CPUFREQ_RELATION_E 2021-10-05 16:33:05 +02:00
ppc_cbe_cpufreq_pervasive.c
ppc_cbe_cpufreq_pmi.c cpufreq: Explicitly include correct DT includes 2023-07-20 16:01:57 +05:30
ppc_cbe_cpufreq.c cpufreq: Explicitly include correct DT includes 2023-07-20 16:01:57 +05:30
ppc_cbe_cpufreq.h
pxa2xx-cpufreq.c cpufreq: pxa3: move clk register access to clk driver 2022-05-07 22:55:49 +02:00
pxa3xx-cpufreq.c cpufreq: pxa3: move clk register access to clk driver 2022-05-07 22:55:49 +02:00
qcom-cpufreq-hw.c cpufreq: qcom-cpufreq-hw: add support for 4 freq domains 2023-08-23 20:31:08 +05:30
qcom-cpufreq-nvmem.c cpufreq: qcom-nvmem: Add MSM8909 2023-10-25 14:53:24 +05:30
qoriq-cpufreq.c cpufreq: qoriq: Convert to platform remove callback returning void 2023-07-20 16:02:13 +05:30
raspberrypi-cpufreq.c cpufreq: raspberrypi: Convert to platform remove callback returning void 2023-07-20 16:02:13 +05:30
s3c64xx-cpufreq.c
s5pv210-cpufreq.c cpufreq: Introducing CPUFREQ_RELATION_E 2021-10-05 16:33:05 +02:00
sa1110-cpufreq.c ARM: sa1100: remove unused board files 2023-01-12 10:53:12 +01:00
sc520_freq.c cpufreq: sc520_freq: add 'fallthrough' to one case 2021-05-21 18:52:13 +02:00
scmi-cpufreq.c cpufreq: Use of_property_present() for testing DT property presence 2023-03-13 09:58:11 +05:30
scpi-cpufreq.c cpufreq: scpi: Convert to platform remove callback returning void 2023-07-20 16:02:12 +05:30
sh-cpufreq.c cpufreq: sh: Remove sh_cpufreq_cpu_ready() 2021-09-02 18:04:17 +02:00
sparc-us2e-cpufreq.c cpufreq: sparc: Don't mark cpufreq callbacks with __init 2023-07-12 12:45:18 +02:00
sparc-us3-cpufreq.c cpufreq: sparc: Don't mark cpufreq callbacks with __init 2023-07-12 12:45:18 +02:00
spear-cpufreq.c cpufreq: Adjust includes to remove of_device.h 2023-04-13 17:46:35 -05:00
speedstep-centrino.c cpufreq: Convert to new X86 CPU match macros 2020-03-24 21:31:27 +01:00
speedstep-ich.c cpufreq: Convert to new X86 CPU match macros 2020-03-24 21:31:27 +01:00
speedstep-lib.c cpufreq: speedstep: remove unneeded semicolon 2020-10-28 18:04:07 +01:00
speedstep-lib.h
speedstep-smi.c cpufreq: Convert to new X86 CPU match macros 2020-03-24 21:31:27 +01:00
sti-cpufreq.c cpufreq: Explicitly include correct DT includes 2023-07-20 16:01:57 +05:30
sun50i-cpufreq-nvmem.c cpufreq: sun50i: Convert to platform remove callback returning void 2023-07-20 16:02:12 +05:30
tegra20-cpufreq.c Devicetree updates for v6.4, part 2: 2023-04-27 10:09:05 -07:00
tegra124-cpufreq.c Devicetree updates for v6.4, part 2: 2023-04-27 10:09:05 -07:00
tegra186-cpufreq.c cpufreq: tegra186: Convert to platform remove callback returning void 2023-07-20 16:02:13 +05:30
tegra194-cpufreq.c cpufreq: tegra194: remove redundant AND with cpu_online_mask 2023-10-10 11:06:03 +05:30
ti-cpufreq.c cpufreq: ti-cpufreq: Add opp support for am62p5 SoCs 2023-10-12 09:10:22 +05:30
vexpress-spc-cpufreq.c cpufreq: vexpress: Convert to platform remove callback returning void 2023-07-20 16:02:12 +05:30