在 2026-02-09星期一的 16:45 +0800，Joey Lu写道： > > On 2/6/2026 11:09 PM, Icenowy Zheng wrote: > > 在 2026-01-29星期四的 12:05 +0800，Joey Lu写道： > > > ========== 8< ============ > > > +#endif > > > diff --git a/drivers/gpu/drm/nuvoton/ma35_regs.h > > > b/drivers/gpu/drm/nuvoton/ma35_regs.h > > > new file mode 100644 > > > index 000000000000..0f4a7a13e7d8 > > > --- /dev/null > > > +++ b/drivers/gpu/drm/nuvoton/ma35_regs.h > > > @@ -0,0 +1,88 @@ > > > +/* SPDX-License-Identifier: GPL-2.0+ */ > > > +/* > > > + * Nuvoton DRM driver > > > + * > > > + * Copyright (C) 2026 Nuvoton Technology Corp. > > > + * > > > + * Author: Joey Lu <[email protected]> > > > + */ > > > + > > > +#ifndef _MA35_REGS_H_ > > > +#define _MA35_REGS_H_ > > > + > > > +#define MA35_FRAMEBUFFER_CONFIG 0x1518 > > Please check my Verisilicon DC8200 driver, which is already part of > > drm-misc-next now. > > > > The display controller here seems to be a earlier one from > > Verisilicon.it looks like a DC8000, or maybe a more earlier one? > > The DCU is a Vivante DCUltra IP rather than a DC8000 series. > > It's an earlier generation display controller and was customized for > Nuvoton, so it doesn't have a public model ID. > > Because of that lineage, parts of the register layout and > functionality > remain similar to older DC IPs.
The kernel seems to dislike different drivers for similar IPs. > > Please refer to MA35D1 datasheet for more details. I checked it, and the register definitions looks compatible with DC8000 registers at [1]. However no identification information is shown in the manual. I may get a MA35D1 board after the Lunar New Year (although it looks a little expensive), is it easy to bring up mainline kernal on arbitary MA35D1 boards? [1] https://github.com/milkv-megrez/rockos-u-boot/blob/c9221cf2fa77d39c0b241ab4b030c708e7ebe279/drivers/video/eswin/eswin_dc_reg.h > > > > +#define MA35_FRAMEBUFFER_ADDRESS 0x1400 > > > +#define MA35_FRAMEBUFFER_STRIDE 0x1408 > > > +#define MA35_HDISPLAY 0x1430 > > > +#define MA35_HSYNC 0x1438 > > > +#define MA35_VDISPLAY 0x1440 > > > +#define MA35_VSYNC 0x1448 > > > +#define MA35_PANEL_CONFIG 0x1418 > > > +#define MA35_DPI_CONFIG 0x14B8 > > > +#define MA35_CURSOR_ADDRESS 0x146C > > > +#define MA35_CURSOR_CONFIG 0x1468 > > > +#define MA35_CURSOR_LOCATION 0x1470 > > > +#define MA35_CURSOR_BACKGROUND 0x1474 > > > +#define MA35_CURSOR_FOREGROUND 0x1478 > > > +#define MA35_FRAMEBUFFER_UPLANAR_ADDRESS 0x1530 > > > +#define MA35_FRAMEBUFFER_VPLANAR_ADDRESS 0x1538 > > > +#define MA35_FRAMEBUFFER_USTRIDE 0x1800 > > > +#define MA35_FRAMEBUFFER_VSTRIDE 0x1808 > > > +#define MA35_INDEXCOLOR_TABLEINDEX 0x1818 > > > +#define MA35_INDEXCOLOR_TABLEDATA 0x1820 > > > +#define MA35_FRAMEBUFFER_SIZE 0x1810 > > > +#define MA35_FRAMEBUFFER_SCALEFACTORX 0x1828 > > > +#define MA35_FRAMEBUFFER_SCALEFACTORY 0x1830 > > > +#define MA35_FRAMEBUFFER_SCALEFCONFIG 0x1520 > > > +#define MA35_HORIFILTER_KERNELINDEX 0x1838 > > > +#define MA35_HORIFILTER_KERNEL 0x1A00 > > > +#define MA35_VERTIFILTER_KERNELINDEX 0x1A08 > > > +#define MA35_VERTIFILTER_KERNEL 0x1A10 > > > +#define MA35_FRAMEBUFFER_INITIALOFFSET 0x1A20 > > > +#define MA35_FRAMEBUFFER_COLORKEY 0x1508 > > > +#define MA35_FRAMEBUFFER_COLORHIGHKEY 0x1510 > > > +#define MA35_FRAMEBUFFER_BGCOLOR 0x1528 > > > +#define MA35_FRAMEBUFFER_CLEARVALUE 0x1A18 > > > +#define MA35_DISPLAY_INTRENABLE 0x1480 > > > +#define MA35_INT_STATE 0x147C > > > +#define MA35_PANEL_DEST_ADDRESS 0x14F0 > > > +#define MA35_MEM_DEST_ADDRESS 0x14E8 > > > +#define MA35_DEST_CONFIG 0x14F8 > > > +#define MA35_DEST_STRIDE 0x1500 > > > +#define MA35_DBI_CONFIG 0x1488 > > > +#define MA35_AQHICLOCKCONTROL 0x0000 > > > +#define MA35_OVERLAY_CONFIG 0x1540 > > > +#define MA35_OVERLAY_STRIDE 0x1600 > > > +#define MA35_OVERLAY_USTRIDE 0x18C0 > > > +#define MA35_OVERLAY_VSTRIDE 0x1900 > > > +#define MA35_OVERLAY_TL 0x1640 > > > +#define MA35_OVERLAY_BR 0x1680 > > > +#define MA35_OVERLAY_ALPHA_BLEND_CONFIG 0x1580 > > > +#define MA35_OVERLAY_SRC_GLOBAL_COLOR 0x16C0 > > > +#define MA35_OVERLAY_DST_GLOBAL_COLOR 0x1700 > > > +#define MA35_OVERLAY_CLEAR_VALUE 0x1940 > > > +#define MA35_OVERLAY_SIZE 0x17C0 > > > +#define MA35_OVERLAY_COLOR_KEY 0x1740 > > > +#define MA35_OVERLAY_COLOR_KEY_HIGH 0x1780 > > > +#define MA35_OVERLAY_ADDRESS 0x15C0 > > > +#define MA35_OVERLAY_UPLANAR_ADDRESS 0x1840 > > > +#define MA35_OVERLAY_VPLANAR_ADDRESS 0x1880 > > > +#define MA35_OVERLAY_SCALE_CONFIG 0x1C00 > > > +#define MA35_OVERLAY_SCALE_FACTOR_X 0x1A40 > > > +#define MA35_OVERLAY_SCALE_FACTOR_Y 0x1A80 > > > +#define MA35_OVERLAY_HORI_FILTER_KERNEL_INDEX 0x1AC0 > > > +#define MA35_OVERLAY_HORI_FILTER_KERNEL 0x1B00 > > > +#define MA35_OVERLAY_VERTI_FILTER_KERNEL_INDEX 0x1B40 > > > +#define MA35_OVERLAY_VERTI_FILTER_KERNEL 0x1B80 > > > +#define MA35_OVERLAY_INITIAL_OFFSET 0x1BC0 > > > +#define MA35_GAMMA_EX_INDEX 0x1CF0 > > > +#define MA35_GAMMA_EX_DATA 0x1CF8 > > > +#define MA35_GAMMA_EX_ONE_DATA 0x1D80 > > > +#define MA35_GAMMA_INDEX 0x1458 > > > +#define MA35_GAMMA_DATA 0x1460 > > > +#define MA35_DISPLAY_DITHER_TABLE_LOW 0x1420 > > > +#define MA35_DISPLAY_DITHER_TABLE_HIGH 0x1428 > > > +#define MA35_DISPLAY_DITHER_CONFIG 0x1410 > > > +#define MA35_DISPLAY_CURRENT_LOCATION 0x1450 > > > + > > > +#endif
