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ACPI: CPPC: Amend documentation in the comments

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Currently it's too hard to read the _CPC structure as it's commented.
Reshuffle indentation and style to make it readable.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Andy Shevchenko 2021-12-22 16:04:45 +02:00 committed by Rafael J. Wysocki
parent a7904a5389
commit 1a901c914d
1 changed files with 21 additions and 38 deletions
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59
drivers/acpi/cppc_acpi.c
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@ -604,47 +604,30 @@ static bool is_cppc_supported(int revision, int num_ent)
/*
* An example CPC table looks like the following.
*
* Name(_CPC, Package()
* {
* 17,
* NumEntries
* 1,
* // Revision
* ResourceTemplate(){Register(PCC, 32, 0, 0x120, 2)},
* // Highest Performance
* ResourceTemplate(){Register(PCC, 32, 0, 0x124, 2)},
* // Nominal Performance
* ResourceTemplate(){Register(PCC, 32, 0, 0x128, 2)},
* // Lowest Nonlinear Performance
* ResourceTemplate(){Register(PCC, 32, 0, 0x12C, 2)},
* // Lowest Performance
* ResourceTemplate(){Register(PCC, 32, 0, 0x130, 2)},
* // Guaranteed Performance Register
* ResourceTemplate(){Register(PCC, 32, 0, 0x110, 2)},
* // Desired Performance Register
* ResourceTemplate(){Register(SystemMemory, 0, 0, 0, 0)},
* ..
* ..
* ..
*
* }
* Name (_CPC, Package() {
* 17, // NumEntries
* 1, // Revision
* ResourceTemplate() {Register(PCC, 32, 0, 0x120, 2)}, // Highest Performance
* ResourceTemplate() {Register(PCC, 32, 0, 0x124, 2)}, // Nominal Performance
* ResourceTemplate() {Register(PCC, 32, 0, 0x128, 2)}, // Lowest Nonlinear Performance
* ResourceTemplate() {Register(PCC, 32, 0, 0x12C, 2)}, // Lowest Performance
* ResourceTemplate() {Register(PCC, 32, 0, 0x130, 2)}, // Guaranteed Performance Register
* ResourceTemplate() {Register(PCC, 32, 0, 0x110, 2)}, // Desired Performance Register
* ResourceTemplate() {Register(SystemMemory, 0, 0, 0, 0)},
* ...
* ...
* ...
* }
* Each Register() encodes how to access that specific register.
* e.g. a sample PCC entry has the following encoding:
*
* Register (
* PCC,
* AddressSpaceKeyword
* 8,
* //RegisterBitWidth
* 8,
* //RegisterBitOffset
* 0x30,
* //RegisterAddress
* 9
* //AccessSize (subspace ID)
* 0
* )
* }
* Register (
* PCC, // AddressSpaceKeyword
* 8, // RegisterBitWidth
* 8, // RegisterBitOffset
* 0x30, // RegisterAddress
* 9, // AccessSize (subspace ID)
* )
*/
#ifndef init_freq_invariance_cppc