diff options
Diffstat (limited to 'drivers/video/fbdev/efifb.c')
-rw-r--r-- | drivers/video/fbdev/efifb.c | 97 |
1 files changed, 5 insertions, 92 deletions
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c index 10fc14ad5d12..8dd82afb3452 100644 --- a/drivers/video/fbdev/efifb.c +++ b/drivers/video/fbdev/efifb.c @@ -13,11 +13,9 @@ #include <linux/efi-bgrt.h> #include <linux/errno.h> #include <linux/fb.h> -#include <linux/pci.h> #include <linux/platform_device.h> #include <linux/printk.h> #include <linux/screen_info.h> -#include <linux/pm_runtime.h> #include <video/vga.h> #include <asm/efi.h> #include <drm/drm_utils.h> /* For drm_get_panel_orientation_quirk */ @@ -48,8 +46,6 @@ static bool use_bgrt = true; static bool request_mem_succeeded = false; static u64 mem_flags = EFI_MEMORY_WC | EFI_MEMORY_UC; -static struct pci_dev *efifb_pci_dev; /* dev with BAR covering the efifb */ - struct efifb_par { u32 pseudo_palette[16]; resource_size_t base; @@ -258,9 +254,6 @@ static void efifb_destroy(struct fb_info *info) { struct efifb_par *par = info->par; - if (efifb_pci_dev) - pm_runtime_put(&efifb_pci_dev->dev); - if (info->screen_base) { if (mem_flags & (EFI_MEMORY_UC | EFI_MEMORY_WC)) iounmap(info->screen_base); @@ -352,11 +345,6 @@ static struct attribute *efifb_attrs[] = { }; ATTRIBUTE_GROUPS(efifb); -static bool pci_dev_disabled; /* FB base matches BAR of a disabled device */ - -static struct resource *bar_resource; -static u64 bar_offset; - static int efifb_probe(struct platform_device *dev) { struct screen_info *si; @@ -381,7 +369,7 @@ static int efifb_probe(struct platform_device *dev) if (!si) return -ENOMEM; - if (si->orig_video_isVGA != VIDEO_TYPE_EFI || pci_dev_disabled) + if (si->orig_video_isVGA != VIDEO_TYPE_EFI) return -ENODEV; if (fb_get_options("efifb", &option)) @@ -417,21 +405,7 @@ static int efifb_probe(struct platform_device *dev) si->rsvd_pos = 24; } - efifb_fix.smem_start = si->lfb_base; - - if (si->capabilities & VIDEO_CAPABILITY_64BIT_BASE) { - u64 ext_lfb_base; - - ext_lfb_base = (u64)(unsigned long)si->ext_lfb_base << 32; - efifb_fix.smem_start |= ext_lfb_base; - } - - if (bar_resource && - bar_resource->start + bar_offset != efifb_fix.smem_start) { - dev_info(&efifb_pci_dev->dev, - "BAR has moved, updating efifb address\n"); - efifb_fix.smem_start = bar_resource->start + bar_offset; - } + efifb_fix.smem_start = __screen_info_lfb_base(si); efifb_defined.bits_per_pixel = si->lfb_depth; efifb_defined.xres = si->lfb_width; @@ -598,26 +572,20 @@ static int efifb_probe(struct platform_device *dev) goto err_groups; } - if (efifb_pci_dev) - WARN_ON(pm_runtime_get_sync(&efifb_pci_dev->dev) < 0); - err = devm_aperture_acquire_for_platform_device(dev, par->base, par->size); if (err) { pr_err("efifb: cannot acquire aperture\n"); - goto err_put_rpm_ref; + goto err_fb_dealloc_cmap; } err = register_framebuffer(info); if (err < 0) { pr_err("efifb: cannot register framebuffer\n"); - goto err_put_rpm_ref; + goto err_fb_dealloc_cmap; } fb_info(info, "%s frame buffer device\n", info->fix.id); return 0; -err_put_rpm_ref: - if (efifb_pci_dev) - pm_runtime_put(&efifb_pci_dev->dev); - +err_fb_dealloc_cmap: fb_dealloc_cmap(&info->cmap); err_groups: sysfs_remove_groups(&dev->dev.kobj, efifb_groups); @@ -652,58 +620,3 @@ static struct platform_driver efifb_driver = { }; builtin_platform_driver(efifb_driver); - -#if defined(CONFIG_PCI) - -static void record_efifb_bar_resource(struct pci_dev *dev, int idx, u64 offset) -{ - u16 word; - - efifb_pci_dev = dev; - - pci_read_config_word(dev, PCI_COMMAND, &word); - if (!(word & PCI_COMMAND_MEMORY)) { - pci_dev_disabled = true; - dev_err(&dev->dev, - "BAR %d: assigned to efifb but device is disabled!\n", - idx); - return; - } - - bar_resource = &dev->resource[idx]; - bar_offset = offset; - - dev_info(&dev->dev, "BAR %d: assigned to efifb\n", idx); -} - -static void efifb_fixup_resources(struct pci_dev *dev) -{ - u64 base = screen_info.lfb_base; - u64 size = screen_info.lfb_size; - int i; - - if (efifb_pci_dev || screen_info.orig_video_isVGA != VIDEO_TYPE_EFI) - return; - - if (screen_info.capabilities & VIDEO_CAPABILITY_64BIT_BASE) - base |= (u64)screen_info.ext_lfb_base << 32; - - if (!base) - return; - - for (i = 0; i < PCI_STD_NUM_BARS; i++) { - struct resource *res = &dev->resource[i]; - - if (!(res->flags & IORESOURCE_MEM)) - continue; - - if (res->start <= base && res->end >= base + size - 1) { - record_efifb_bar_resource(dev, i, base - res->start); - break; - } - } -} -DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY, - 16, efifb_fixup_resources); - -#endif |