WSL2-Linux-Kernel/drivers/staging/sm750fb
Benjamin Philip cc59bde1c9 staging: sm750fb: Rename vScreen to v_screen in lynxfb_crtc
The struct lynxfb_crtc has a member named vScreen. This name is
CamelCase and is frowned upon. This commit renames it to v_screen
and makes the necessary changes for the module to build.

This change also fixes the following checkpatch CHECKs:

CHECK: Avoid CamelCase: <vScreen>
454: FILE: sm750.c:454:
+		memset_io(crtc->vScreen, 0x0, crtc->vidmem_size);

CHECK: Avoid CamelCase: <vScreen>
136: FILE: sm750.h:136:
+	unsigned char __iomem *vScreen; /* virtual address of on_screen */

Signed-off-by: Benjamin Philip <benjamin.philip495@gmail.com>
Link: https://lore.kernel.org/r/52db14bfc2f39e246aed7fdf866845a72e503b36.1627413010.git.benjamin.philip495@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-28 20:17:26 +02:00
..
Kconfig
Makefile
TODO
ddk750.h
ddk750_chip.c
ddk750_chip.h
ddk750_display.c
ddk750_display.h
ddk750_dvi.c
ddk750_dvi.h
ddk750_hwi2c.c
ddk750_hwi2c.h
ddk750_mode.c
ddk750_mode.h
ddk750_power.c
ddk750_power.h
ddk750_reg.h
ddk750_sii164.c
ddk750_sii164.h
ddk750_swi2c.c
ddk750_swi2c.h
readme
sm750.c staging: sm750fb: Rename vScreen to v_screen in lynxfb_crtc 2021-07-28 20:17:26 +02:00
sm750.h staging: sm750fb: Rename vScreen to v_screen in lynxfb_crtc 2021-07-28 20:17:26 +02:00
sm750_accel.c
sm750_accel.h
sm750_cursor.c staging: sm750fb: Rename maxW to max_w in lynx_cursor 2021-07-27 15:25:17 +02:00
sm750_cursor.h
sm750_hw.c staging: sm750fb: Rename oScreen to o_screen in lynxfb_crtc 2021-07-28 20:17:26 +02:00

readme

Introduction:
	SM750 of Silicon MOtion is pci express display controller device.
	The SM750 embedded graphics features include:
	- dual display
	- 2D acceleration
	- 16MB integrated video memory

About the kernel module parameter of driver:

	Use 1280,8bpp index color and 60 hz mode:
	insmod ./sm750fb.ko g_option="1280x1024-8@60"

	Disable MTRR,Disable 2d acceleration,Disable hardware cursor,
	and use a 800x600 mode :
	insmod ./sm750fb.ko g_option="noaccel:nomtrr:nohwc:800x600"

	dual frame buffer for driver with "dual" parameter
	insmod ./sm750fb.ko g_option="dual,800x600:1024x768"
	it will create fb0 and fb1 (or fb1,fb2 if fb0 already exist) under /dev
	and user can use con2fb to link fbX and ttyX

	Notes:
	1) if you build the driver with built-in method, the parameter
		you edited in the grub config file will be also the
		same format as above modular method,but additionally add
		"video=sm750fb:"
		ahead of parameters,so,it looks like:
		video=sm750fb:noaccel,1280x1024@60,otherparam,etc...
		it equal to modular method with below command:
		insmod ./sm750fb.ko g_option="noaccel:1280x1024@60:otherparm:etc..."

	2) if you put 800x600 into the parameter without bpp and
		refresh rate, kernel driver will defaulty use 16bpp and 60hz

Important:
	if you have vesafb enabled in your config then /dev/fb0 will be created by vesafb
	and this driver will use fb1, fb2. In that case, you need to configure your X-server
	to use fb1. Another simple althernative is to disable vesafb from your config.