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commit a8a6b1186b1a209647483c2ff81e0d59c43dbdd3
parent 7671c14e6aca7a816a29a85eba47d9bccb7d23ae
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sat,  5 Jan 2019 18:15:37 -0800

Merge tag 'fbdev-v4.21' of git://github.com/bzolnier/linux

Pull fbdev updates from Bartlomiej Zolnierkiewicz:
 "This time the pull request is really small.

  The most notable changes are fixing fbcon to not cause crash on
  unregister_framebuffer() operation when there is more than one
  framebuffer, adding config option to center the bootup logo and making
  FB_BACKLIGHT config option tristate (which in turn uncovered incorrect
  FB_BACKLIGHT usage by DRM's nouveau driver).

  Summary:

   - fix fbcon to not cause crash on unregister_framebuffer() when there
     is more than one framebuffer (Noralf Trønnes)

   - improve support for small rotated displays (Peter Rosin)

   - fix probe failure handling in udlfb driver (Dan Carpenter)

   - add config option to center the bootup logo (Peter Rosin)

   - make FB_BACKLIGHT config option tristate (Rob Clark)

   - remove superfluous HAS_DMA dependency for goldfishfb driver (Geert
     Uytterhoeven)

   - misc fixes (Alexey Khoroshilov, YueHaibing, Colin Ian King, Lubomir
     Rintel)

   - misc cleanups (Yangtao Li, Wen Yang)

  also there is DRM's nouveau driver fix for wrong FB_BACKLIGHT config
  option usage (FB_BACKLIGHT is for internal fbdev subsystem use only)"

* tag 'fbdev-v4.21' of git://github.com/bzolnier/linux:
  drm/nouveau: fix incorrect FB_BACKLIGHT usage in Kconfig
  fbdev: fbcon: Fix unregister crash when more than one framebuffer
  fbdev: Remove depends on HAS_DMA in case of platform dependency
  pxa168fb: trivial typo fix
  fbdev: fsl-diu: remove redundant null check on cmap
  fbdev: omap2: omapfb: convert to DEFINE_SHOW_ATTRIBUTE
  fbdev: uvesafb: fix spelling mistake "memoery" -> "memory"
  fbdev: fbmem: add config option to center the bootup logo
  fbdev: fbmem: make fb_show_logo_line return the end instead of the height
  video: fbdev: pxafb: Fix "WARNING: invalid free of devm_ allocated data"
  fbdev: fbmem: behave better with small rotated displays and many CPUs
  video: clps711x-fb: release disp device node in probe()
  fbdev: make FB_BACKLIGHT a tristate
  udlfb: fix some inconsistent NULL checking

Diffstat:
Mdrivers/gpu/drm/nouveau/Kconfig | 3++-
Mdrivers/video/fbdev/Kconfig | 5+++--
Mdrivers/video/fbdev/clps711x-fb.c | 5++++-
Mdrivers/video/fbdev/core/fbcon.c | 2+-
Mdrivers/video/fbdev/core/fbmem.c | 39+++++++++++++++++++++++++++++++++------
Mdrivers/video/fbdev/core/fbsysfs.c | 8++++----
Mdrivers/video/fbdev/fsl-diu-fb.c | 3+--
Mdrivers/video/fbdev/omap2/omapfb/dss/core.c | 18++++--------------
Mdrivers/video/fbdev/pxa168fb.c | 2+-
Mdrivers/video/fbdev/pxafb.c | 4+---
Mdrivers/video/fbdev/udlfb.c | 14++++++--------
Mdrivers/video/fbdev/uvesafb.c | 2+-
Mdrivers/video/logo/Kconfig | 9+++++++++
Minclude/linux/fb.h | 2+-
Minclude/uapi/linux/fb.h | 2--
15 files changed, 71 insertions(+), 47 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/Kconfig b/drivers/gpu/drm/nouveau/Kconfig @@ -4,7 +4,8 @@ config DRM_NOUVEAU select FW_LOADER select DRM_KMS_HELPER select DRM_TTM - select FB_BACKLIGHT if DRM_NOUVEAU_BACKLIGHT + select BACKLIGHT_CLASS_DEVICE if DRM_NOUVEAU_BACKLIGHT + select BACKLIGHT_LCD_SUPPORT if DRM_NOUVEAU_BACKLIGHT select ACPI_VIDEO if ACPI && X86 && BACKLIGHT_CLASS_DEVICE && INPUT select X86_PLATFORM_DEVICES if ACPI && X86 select ACPI_WMI if ACPI && X86 diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig @@ -184,7 +184,7 @@ config FB_MACMODES depends on FB config FB_BACKLIGHT - bool + tristate depends on FB select BACKLIGHT_LCD_SUPPORT select BACKLIGHT_CLASS_DEVICE @@ -2037,7 +2037,8 @@ config FB_XILINX config FB_GOLDFISH tristate "Goldfish Framebuffer" - depends on FB && HAS_DMA && (GOLDFISH || COMPILE_TEST) + depends on FB + depends on GOLDFISH || COMPILE_TEST select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT diff --git a/drivers/video/fbdev/clps711x-fb.c b/drivers/video/fbdev/clps711x-fb.c @@ -287,14 +287,17 @@ static int clps711x_fb_probe(struct platform_device *pdev) } ret = of_get_fb_videomode(disp, &cfb->mode, OF_USE_NATIVE_MODE); - if (ret) + if (ret) { + of_node_put(disp); goto out_fb_release; + } of_property_read_u32(disp, "ac-prescale", &cfb->ac_prescale); cfb->cmap_invert = of_property_read_bool(disp, "cmap-invert"); ret = of_property_read_u32(disp, "bits-per-pixel", &info->var.bits_per_pixel); + of_node_put(disp); if (ret) goto out_fb_release; diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c @@ -3064,7 +3064,7 @@ static int fbcon_fb_unbind(int idx) for (i = first_fb_vc; i <= last_fb_vc; i++) { if (con2fb_map[i] != idx && con2fb_map[i] != -1) { - new_idx = i; + new_idx = con2fb_map[i]; break; } } diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c @@ -436,7 +436,9 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image, image->dx += image->width + 8; } } else if (rotate == FB_ROTATE_UD) { - for (x = 0; x < num; x++) { + u32 dx = image->dx; + + for (x = 0; x < num && image->dx <= dx; x++) { info->fbops->fb_imageblit(info, image); image->dx -= image->width + 8; } @@ -448,7 +450,9 @@ static void fb_do_show_logo(struct fb_info *info, struct fb_image *image, image->dy += image->height + 8; } } else if (rotate == FB_ROTATE_CCW) { - for (x = 0; x < num; x++) { + u32 dy = image->dy; + + for (x = 0; x < num && image->dy <= dy; x++) { info->fbops->fb_imageblit(info, image); image->dy -= image->height + 8; } @@ -502,8 +506,25 @@ static int fb_show_logo_line(struct fb_info *info, int rotate, fb_set_logo(info, logo, logo_new, fb_logo.depth); } +#ifdef CONFIG_FB_LOGO_CENTER + { + int xres = info->var.xres; + int yres = info->var.yres; + + if (rotate == FB_ROTATE_CW || rotate == FB_ROTATE_CCW) { + xres = info->var.yres; + yres = info->var.xres; + } + + while (n && (n * (logo->width + 8) - 8 > xres)) + --n; + image.dx = (xres - n * (logo->width + 8) - 8) / 2; + image.dy = y ?: (yres - logo->height) / 2; + } +#else image.dx = 0; image.dy = y; +#endif image.width = logo->width; image.height = logo->height; @@ -521,7 +542,7 @@ static int fb_show_logo_line(struct fb_info *info, int rotate, info->pseudo_palette = saved_pseudo_palette; kfree(logo_new); kfree(logo_rotate); - return logo->height; + return image.dy + logo->height; } @@ -573,8 +594,8 @@ static int fb_show_extra_logos(struct fb_info *info, int y, int rotate) unsigned int i; for (i = 0; i < fb_logo_ex_num; i++) - y += fb_show_logo_line(info, rotate, - fb_logo_ex[i].logo, y, fb_logo_ex[i].n); + y = fb_show_logo_line(info, rotate, + fb_logo_ex[i].logo, y, fb_logo_ex[i].n); return y; } @@ -600,6 +621,7 @@ int fb_prepare_logo(struct fb_info *info, int rotate) { int depth = fb_get_color_depth(&info->var, &info->fix); unsigned int yres; + int height; memset(&fb_logo, 0, sizeof(struct logo_data)); @@ -661,7 +683,12 @@ int fb_prepare_logo(struct fb_info *info, int rotate) } } - return fb_prepare_extra_logos(info, fb_logo.logo->height, yres); + height = fb_logo.logo->height; +#ifdef CONFIG_FB_LOGO_CENTER + height += (yres - fb_logo.logo->height) / 2; +#endif + + return fb_prepare_extra_logos(info, height, yres); } int fb_show_logo(struct fb_info *info, int rotate) diff --git a/drivers/video/fbdev/core/fbsysfs.c b/drivers/video/fbdev/core/fbsysfs.c @@ -60,7 +60,7 @@ struct fb_info *framebuffer_alloc(size_t size, struct device *dev) info->device = dev; info->fbcon_rotate_hint = -1; -#ifdef CONFIG_FB_BACKLIGHT +#if IS_ENABLED(CONFIG_FB_BACKLIGHT) mutex_init(&info->bl_curve_mutex); #endif @@ -429,7 +429,7 @@ static ssize_t show_fbstate(struct device *device, return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->state); } -#ifdef CONFIG_FB_BACKLIGHT +#if IS_ENABLED(CONFIG_FB_BACKLIGHT) static ssize_t store_bl_curve(struct device *device, struct device_attribute *attr, const char *buf, size_t count) @@ -510,7 +510,7 @@ static struct device_attribute device_attrs[] = { __ATTR(stride, S_IRUGO, show_stride, NULL), __ATTR(rotate, S_IRUGO|S_IWUSR, show_rotate, store_rotate), __ATTR(state, S_IRUGO|S_IWUSR, show_fbstate, store_fbstate), -#ifdef CONFIG_FB_BACKLIGHT +#if IS_ENABLED(CONFIG_FB_BACKLIGHT) __ATTR(bl_curve, S_IRUGO|S_IWUSR, show_bl_curve, store_bl_curve), #endif }; @@ -551,7 +551,7 @@ void fb_cleanup_device(struct fb_info *fb_info) } } -#ifdef CONFIG_FB_BACKLIGHT +#if IS_ENABLED(CONFIG_FB_BACKLIGHT) /* This function generates a linear backlight curve * * 0: off diff --git a/drivers/video/fbdev/fsl-diu-fb.c b/drivers/video/fbdev/fsl-diu-fb.c @@ -1575,8 +1575,7 @@ static void uninstall_fb(struct fb_info *info) unregister_framebuffer(info); unmap_video_memory(info); - if (&info->cmap) - fb_dealloc_cmap(&info->cmap); + fb_dealloc_cmap(&info->cmap); mfbi->registered = 0; } diff --git a/drivers/video/fbdev/omap2/omapfb/dss/core.c b/drivers/video/fbdev/omap2/omapfb/dss/core.c @@ -99,24 +99,14 @@ int dss_set_min_bus_tput(struct device *dev, unsigned long tput) } #if defined(CONFIG_FB_OMAP2_DSS_DEBUGFS) -static int dss_debug_show(struct seq_file *s, void *unused) +static int dss_show(struct seq_file *s, void *unused) { void (*func)(struct seq_file *) = s->private; func(s); return 0; } -static int dss_debug_open(struct inode *inode, struct file *file) -{ - return single_open(file, dss_debug_show, inode->i_private); -} - -static const struct file_operations dss_debug_fops = { - .open = dss_debug_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; +DEFINE_SHOW_ATTRIBUTE(dss); static struct dentry *dss_debugfs_dir; @@ -130,7 +120,7 @@ static int dss_initialize_debugfs(void) } debugfs_create_file("clk", S_IRUGO, dss_debugfs_dir, - &dss_debug_dump_clocks, &dss_debug_fops); + &dss_debug_dump_clocks, &dss_fops); return 0; } @@ -145,7 +135,7 @@ int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *)) struct dentry *d; d = debugfs_create_file(name, S_IRUGO, dss_debugfs_dir, - write, &dss_debug_fops); + write, &dss_fops); return PTR_ERR_OR_ZERO(d); } diff --git a/drivers/video/fbdev/pxa168fb.c b/drivers/video/fbdev/pxa168fb.c @@ -279,7 +279,7 @@ static void set_clock_divider(struct pxa168fb_info *fbi, /* check whether divisor is too small. */ if (divider_int < 2) { - dev_warn(fbi->dev, "Warning: clock source is too slow." + dev_warn(fbi->dev, "Warning: clock source is too slow. " "Try smaller resolution\n"); divider_int = 2; } diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c @@ -2234,10 +2234,8 @@ static struct pxafb_mach_info *of_pxafb_of_mach_info(struct device *dev) if (!info) return ERR_PTR(-ENOMEM); ret = of_get_pxafb_mode_info(dev, info); - if (ret) { - kfree(info->modes); + if (ret) return ERR_PTR(ret); - } /* * On purpose, neither lccrX registers nor video memory size can be diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c @@ -1598,7 +1598,7 @@ static int dlfb_usb_probe(struct usb_interface *intf, dlfb = kzalloc(sizeof(*dlfb), GFP_KERNEL); if (!dlfb) { dev_err(&intf->dev, "%s: failed to allocate dlfb\n", __func__); - goto error; + return -ENOMEM; } INIT_LIST_HEAD(&dlfb->deferred_free); @@ -1703,7 +1703,7 @@ static int dlfb_usb_probe(struct usb_interface *intf, error: if (dlfb->info) { dlfb_ops_destroy(dlfb->info); - } else if (dlfb) { + } else { usb_put_dev(dlfb->udev); kfree(dlfb); } @@ -1730,12 +1730,10 @@ static void dlfb_usb_disconnect(struct usb_interface *intf) /* this function will wait for all in-flight urbs to complete */ dlfb_free_urb_list(dlfb); - if (info) { - /* remove udlfb's sysfs interfaces */ - for (i = 0; i < ARRAY_SIZE(fb_device_attrs); i++) - device_remove_file(info->dev, &fb_device_attrs[i]); - device_remove_bin_file(info->dev, &edid_attr); - } + /* remove udlfb's sysfs interfaces */ + for (i = 0; i < ARRAY_SIZE(fb_device_attrs); i++) + device_remove_file(info->dev, &fb_device_attrs[i]); + device_remove_bin_file(info->dev, &edid_attr); unregister_framebuffer(info); } diff --git a/drivers/video/fbdev/uvesafb.c b/drivers/video/fbdev/uvesafb.c @@ -1979,7 +1979,7 @@ MODULE_PARM_DESC(noedid, module_param(vram_remap, uint, 0); MODULE_PARM_DESC(vram_remap, "Set amount of video memory to be used [MiB]"); module_param(vram_total, uint, 0); -MODULE_PARM_DESC(vram_total, "Set total amount of video memoery [MiB]"); +MODULE_PARM_DESC(vram_total, "Set total amount of video memory [MiB]"); module_param(maxclk, ushort, 0); MODULE_PARM_DESC(maxclk, "Maximum pixelclock [MHz], overrides EDID data"); module_param(maxhf, ushort, 0); diff --git a/drivers/video/logo/Kconfig b/drivers/video/logo/Kconfig @@ -10,6 +10,15 @@ menuconfig LOGO if LOGO +config FB_LOGO_CENTER + bool "Center the logo" + depends on FB=y + help + When this option is selected, the bootup logo is centered both + horizontally and vertically. If more than one logo is displayed + due to multiple CPUs, the collected line of logos is centered + as a whole. + config FB_LOGO_EXTRA bool depends on FB=y diff --git a/include/linux/fb.h b/include/linux/fb.h @@ -485,7 +485,7 @@ struct fb_info { struct list_head modelist; /* mode list */ struct fb_videomode *mode; /* current mode */ -#ifdef CONFIG_FB_BACKLIGHT +#if IS_ENABLED(CONFIG_FB_BACKLIGHT) /* assigned backlight device */ /* set before framebuffer registration, remove after unregister */ diff --git a/include/uapi/linux/fb.h b/include/uapi/linux/fb.h @@ -393,11 +393,9 @@ struct fb_cursor { struct fb_image image; /* Cursor image */ }; -#ifdef CONFIG_FB_BACKLIGHT /* Settings for the generic backlight code */ #define FB_BACKLIGHT_LEVELS 128 #define FB_BACKLIGHT_MAX 0xFF -#endif #endif /* _UAPI_LINUX_FB_H */