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These settings are used by an ASPEED BMC to determine when the host is trying to drive the display over PCIe (vga_pw) and to switch the output between PCIe and the internal graphics device (dac_mux). The valid values for the dac mux are: 00: VGA mode (default, aka PCIe) 01: Graphics CRT (aka BMC internal graphics, this driver) 10: Pass through mode from video input port A 11: Pass through mode from video input port B Values for the read-only vga password register are: 1: Host driving the display 0: Host not driving the display Signed-off-by: Joel Stanley <joel@jms.id.au> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Link: https://patchwork.freedesktop.org/patch/msgid/20200916083413.777307-1-joel@jms.id.au |
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| .. | ||
| aspeed_gfx_crtc.c | ||
| aspeed_gfx_drv.c | ||
| aspeed_gfx_out.c | ||
| aspeed_gfx.h | ||
| Kconfig | ||
| Makefile | ||