Commit 9bd2bae1 authored by Rex Zhu's avatar Rex Zhu Committed by Alex Deucher
Browse files

drm/amd/pp: Add a helper to convert VID to voltage value 



Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarRex Zhu <Rex.Zhu@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 64b9342f

drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c

+5 −0
Original line number Diff line number Diff line
@@ -60,6 +60,11 @@ uint8_t convert_to_vid(uint16_t vddc) 
	return (uint8_t) ((6200 - (vddc * VOLTAGE_SCALE)) / 25);

}



uint16_t convert_to_vddc(uint8_t vid)

{

	return (uint16_t) ((6200 - (vid * 25)) / VOLTAGE_SCALE);

}



static int phm_get_pci_bus_devfn(struct pp_hwmgr *hwmgr,

		struct cgs_system_info *sys_info)

{

drivers/gpu/drm/amd/powerplay/inc/hwmgr.h

+1 −0
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ struct pp_atomctrl_voltage_table; 
#define VOLTAGE_SCALE 4



uint8_t convert_to_vid(uint16_t vddc);

uint16_t convert_to_vddc(uint8_t vid);



enum DISPLAY_GAP {

	DISPLAY_GAP_VBLANK_OR_WM = 0,   /* Wait for vblank or MCHG watermark. */

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