Mainline:Broadcom Kona/Clocks: Difference between revisions
No edit summary |
|||
Line 111: | Line 111: | ||
=== Core clocks and freq policy === | === Core clocks and freq policy === | ||
The second user of this is core clocks - in the core CCU, the frequency policy is used to determine which clock source is used for the CPU - see "Core clocks" section for details. | The second user of this is core clocks - in the core CCU, the frequency policy is used to determine which clock source is used for the CPU - see "Core clocks" section for details. | ||
=== PI manager and freq policy === | |||
The PI manager is also able to set this through the <code>pi_set_ccu_freq</code> function, which is only used if <code>CONFIG_CHANGE_POLICY_FOR_DFS</code> is not defined (and it is not defined in the Grand Neo downstream kernel). See "Power Islands" section. | The PI manager is also able to set this through the <code>pi_set_ccu_freq</code> function, which is only used if <code>CONFIG_CHANGE_POLICY_FOR_DFS</code> is not defined (and it is not defined in the Grand Neo downstream kernel). See "Power Islands" section. |