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arm: stm32mp: add weak function to save vddcore 

Add a weak functions to save the vddcore voltage value provided
in the OPP node when the clock tree is initialized.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
This commit is contained in:
Patrick Delaunay 2020-05-25 12:19:45 +02:00
parent 37ad8377af
commit 4e62642aef
2 changed files with 8 additions and 0 deletions
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3
arch/arm/mach-stm32mp/include/mach/sys_proto.h
View File

@ -48,3 +48,6 @@ void get_soc_name(char name[SOC_NAME_SIZE]);
u32 get_bootmode(void); u32 get_bootmode(void);
int setup_mac_address(void); int setup_mac_address(void);
/* board power management : configure vddcore according OPP */
void board_vddcore_init(u32 voltage_mv);

5
drivers/clk/clk_stm32mp1.c
View File

@ -1229,6 +1229,10 @@ bool stm32mp1_supports_opp(u32 opp_id, u32 cpu_type)
} }
} }
__weak void board_vddcore_init(u32 voltage_mv)
{
}
/* /*
* gets OPP parameters (frequency in KHz and voltage in mV) from * gets OPP parameters (frequency in KHz and voltage in mV) from
* an OPP table subnode. Platform HW support capabilities are also checked. * an OPP table subnode. Platform HW support capabilities are also checked.
@ -1306,6 +1310,7 @@ int stm32mp1_get_max_opp_freq(struct stm32mp1_clk_priv *priv, u64 *freq_hz)
return -FDT_ERR_NOTFOUND; return -FDT_ERR_NOTFOUND;
*freq_hz = (u64)1000U * freq; *freq_hz = (u64)1000U * freq;
board_vddcore_init(voltage);
return 0; return 0;
} }