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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2024-01-03 13:13:25 +0100 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2024-01-12 12:38:37 +0100 |
| commit | 7452b319bd30d02c9e353d11206410fd66a67efa (patch) | |
| tree | 3a3d8f25276f3d2b2f9bc322fd66e0775b577ddb | |
| parent | 29328fb06cee0f984c796c7451408b00e5681a6b (diff) | |
| download | lwn-7452b319bd30d02c9e353d11206410fd66a67efa.tar.gz lwn-7452b319bd30d02c9e353d11206410fd66a67efa.zip | |
fbdev/sis: Remove dependency on screen_info
When built-in, the sis driver tries to detect the current display mode
from the global screen_info state. That state is only for architecture
and firmware code. Drivers should not use it directly as it's not
guaranteed to contain valid information.
Remove the mode-detection code from sis. Drivers that want to detect a
pre-set mode on probe should read the hardware registers directly.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
| -rw-r--r-- | drivers/video/fbdev/sis/sis_main.c | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/drivers/video/fbdev/sis/sis_main.c b/drivers/video/fbdev/sis/sis_main.c index 6ad47b6b6004..803ccb6aa479 100644 --- a/drivers/video/fbdev/sis/sis_main.c +++ b/drivers/video/fbdev/sis/sis_main.c @@ -27,7 +27,6 @@ #include <linux/errno.h> #include <linux/string.h> #include <linux/mm.h> -#include <linux/screen_info.h> #include <linux/slab.h> #include <linux/fb.h> #include <linux/selection.h> @@ -257,36 +256,6 @@ static void sisfb_search_mode(char *name, bool quiet) printk(KERN_ERR "sisfb: Invalid mode '%s'\n", nameptr); } -#ifndef MODULE -static void sisfb_get_vga_mode_from_kernel(void) -{ -#ifdef CONFIG_X86 - char mymode[32]; - int mydepth = screen_info.lfb_depth; - - if(screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB) return; - - if( (screen_info.lfb_width >= 320) && (screen_info.lfb_width <= 2048) && - (screen_info.lfb_height >= 200) && (screen_info.lfb_height <= 1536) && - (mydepth >= 8) && (mydepth <= 32) ) { - - if(mydepth == 24) mydepth = 32; - - sprintf(mymode, "%ux%ux%u", screen_info.lfb_width, - screen_info.lfb_height, - mydepth); - - printk(KERN_DEBUG - "sisfb: Using vga mode %s pre-set by kernel as default\n", - mymode); - - sisfb_search_mode(mymode, true); - } -#endif - return; -} -#endif - static void __init sisfb_search_crt2type(const char *name) { @@ -5901,12 +5870,6 @@ static int sisfb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ivideo->subsysvendor = pdev->subsystem_vendor; ivideo->subsysdevice = pdev->subsystem_device; -#ifndef MODULE - if(sisfb_mode_idx == -1) { - sisfb_get_vga_mode_from_kernel(); - } -#endif - ivideo->chip = chipinfo->chip; ivideo->chip_real_id = chipinfo->chip; ivideo->sisvga_engine = chipinfo->vgaengine; |