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bdk: display: use a scratch reg for backlight

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Spare registers normally have hidden hw config usage, so avoid them just in case.
This commit is contained in:
CTCaer
2025-12-18 11:48:53 +02:00
parent b5a6c8eb64
commit 998053f8db
2 changed files with 8 additions and 6 deletions
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10
bdk/display/di.h
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@@ -37,8 +37,8 @@
#define DC_D_WINBUF_DD_SCRATCH_REGISTER_1 0xEE
#define DC_T_WINBUF_TD_SCRATCH_REGISTER_0 0x16D
#define DC_T_WINBUF_TD_SCRATCH_REGISTER_1 0x16E
#define DC_COM_SCRATCH_REGISTER_A 0x325
#define DC_COM_SCRATCH_REGISTER_B 0x326
#define DC_COM_SCRATCH_REGISTER_A 0x325
#define DC_COM_SCRATCH_REGISTER_B 0x326
#define DC_A_WINBUF_AD_SCRATCH_REGISTER_0 0xBED
#define DC_A_WINBUF_AD_SCRATCH_REGISTER_1 0xBEE
#define DC_B_WINBUF_BD_SCRATCH_REGISTER_0 0xDED
@@ -308,9 +308,8 @@
#define DC_DISP_SD_BL_CONTROL 0x4DC
#define DC_DISP_BLEND_BACKGROUND_COLOR 0x4E4
#define DC_DISP_DISPLAY_SPARE0 0x4F7 // Used by SW.
#define DC_DISP_DISPLAY_SPARE0 0x4F7 // Used by SW/HW.
#define DC_DISP_DISPLAY_SPARE1 0x4F8
#define DC_DISP_BACKLIGHT_DUTY DC_DISP_DISPLAY_SPARE1
#define DC_WINC_COLOR_PALETTE 0x500
#define COLOR_PALETTE_IDX(off) (DC_WINC_COLOR_PALETTE + (off))
@@ -469,6 +468,9 @@
#define DC_WINBUF_MEMFETCH_CONTROL 0x82B
/* Scratch register to store DCS backlight level (custom). */
#define DC_DCS_BACKLIGHT_LEVEL DC_COM_SCRATCH_REGISTER_B
/*! Display serial interface registers. */
#define DSI_INCR_SYNCPT_CNTRL 0x1
#define DSI_INCR_SYNCPT_SOFT_RESET BIT(0)