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disp: msm: reserve core clock rate during display disable

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Userspace module may not trigger the atomic check and it
can cause the commit failure. In such case, always reserve
the minimum core clock rate on mmrm module for built-in
displays to avoid the power ON failure.

Change-Id: Iafd92a7b7d1b35befe70b041cbedaec2add40de4
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>
This commit is contained in:
Dhaval Patel
2021-09-17 16:46:45 -07:00
committed by Gerrit - the friendly Code Review server
parent 711eabbf43
commit c281b3a879
5 changed files with 144 additions and 2 deletions
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23
msm/sde_power_handle.h
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@@ -147,6 +147,16 @@ struct sde_power_event {
bool active;
};
/*
* struct sde_power_mmrm_reserve - mmrm resource reservation for clk and bw
* @clk_name: name of resource reservation clock
* @clk_rate: resource reservation clock rate
*/
struct sde_power_mmrm_reserve {
char clk_name[32];
u64 clk_rate;
};
/**
* struct sde_power_handle: power handle main struct
* @mp: module power for clock and regulator
@@ -159,6 +169,7 @@ struct sde_power_event {
* @rsc_client_init: boolean to control rsc client create
* @mmrm_enable: boolean to indicate if mmrm is enabled
* @ib_quota: ib quota of the given bus
* @mmrm_reserve: mmrm resource reservation
*/
struct sde_power_handle {
struct dss_module_power mp;
@@ -173,6 +184,8 @@ struct sde_power_handle {
bool rsc_client_init;
bool mmrm_enable;
u64 ib_quota[SDE_POWER_HANDLE_DBUS_ID_MAX];
struct sde_power_mmrm_reserve mmrm_reserve;
};
/**
@@ -226,6 +239,16 @@ int sde_power_scale_reg_bus(struct sde_power_handle *phandle,
int sde_power_data_bus_state_update(struct sde_power_handle *phandle,
bool enable);
/**
* sde_power_clk_reserve_rate() - reserve the clock rate with mmrm
* @pdata: power handle containing the resources
* @clock_name: clock name which needs rate update.
* @rate: Requested rate.
*
* Return: error code.
*/
int sde_power_clk_reserve_rate(struct sde_power_handle *pdata, char *clock_name, u64 rate);
/**
* sde_power_clk_set_rate() - set the clock rate
* @pdata: power handle containing the resources