cpufreq: amd-pstate: optimize driver working mode selection in amd_pstate_param()

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The amd-pstate driver may support multiple working modes.
Introduce a variable to keep track of which mode is currently enabled.
Here we use cppc_state var to indicate which mode is enabled.
This change will help to simplify the the amd_pstate_param() to choose
which mode used for the following driver registration.

Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Tested-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Signed-off-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Wyes Karny 2023-01-31 17:00:08 +08:00 • committed by Rafael J. Wysocki

parent e22abc6bb9

commit 36c5014e54

2 changed files with 46 additions and 10 deletions

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39

drivers/cpufreq/amd-pstate.c

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17

include/linux/amd-pstate.h

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