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2022-08-05video: fbdev: arkfb: Check the size of screen before memset_io()Zheyu Ma1-0/+2
In the function arkfb_set_par(), the value of 'screen_size' is calculated by the user input. If the user provides the improper value, the value of 'screen_size' may larger than 'info->screen_size', which may cause the following bug: [ 659.399066] BUG: unable to handle page fault for address: ffffc90003000000 [ 659.399077] #PF: supervisor write access in kernel mode [ 659.399079] #PF: error_code(0x0002) - not-present page [ 659.399094] RIP: 0010:memset_orig+0x33/0xb0 [ 659.399116] Call Trace: [ 659.399122] arkfb_set_par+0x143f/0x24c0 [ 659.399130] fb_set_var+0x604/0xeb0 [ 659.399161] do_fb_ioctl+0x234/0x670 [ 659.399189] fb_ioctl+0xdd/0x130 Fix the this by checking the value of 'screen_size' before memset_io(). Fixes: 681e14730c73 ("arkfb: new framebuffer driver for ARK Logic cards") Signed-off-by: Zheyu Ma <zheyuma97@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-08-05video: fbdev: vt8623fb: Check the size of screen before memset_io()Zheyu Ma1-0/+2
In the function vt8623fb_set_par(), the value of 'screen_size' is calculated by the user input. If the user provides the improper value, the value of 'screen_size' may larger than 'info->screen_size', which may cause the following bug: [ 583.339036] BUG: unable to handle page fault for address: ffffc90005000000 [ 583.339049] #PF: supervisor write access in kernel mode [ 583.339052] #PF: error_code(0x0002) - not-present page [ 583.339074] RIP: 0010:memset_orig+0x33/0xb0 [ 583.339110] Call Trace: [ 583.339118] vt8623fb_set_par+0x11cd/0x21e0 [ 583.339146] fb_set_var+0x604/0xeb0 [ 583.339181] do_fb_ioctl+0x234/0x670 [ 583.339209] fb_ioctl+0xdd/0x130 Fix the this by checking the value of 'screen_size' before memset_io(). Fixes: 558b7bd86c32 ("vt8623fb: new framebuffer driver for VIA VT8623") Signed-off-by: Zheyu Ma <zheyuma97@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-08-03video: fbdev: i740fb: Check the argument of i740_calc_vclk()Zheyu Ma1-2/+7
Since the user can control the arguments of the ioctl() from the user space, under special arguments that may result in a divide-by-zero bug. If the user provides an improper 'pixclock' value that makes the argumet of i740_calc_vclk() less than 'I740_RFREQ_FIX', it will cause a divide-by-zero bug in: drivers/video/fbdev/i740fb.c:353 p_best = min(15, ilog2(I740_MAX_VCO_FREQ / (freq / I740_RFREQ_FIX))); The following log can reveal it: divide error: 0000 [#1] PREEMPT SMP KASAN PTI RIP: 0010:i740_calc_vclk drivers/video/fbdev/i740fb.c:353 [inline] RIP: 0010:i740fb_decode_var drivers/video/fbdev/i740fb.c:646 [inline] RIP: 0010:i740fb_set_par+0x163f/0x3b70 drivers/video/fbdev/i740fb.c:742 Call Trace: fb_set_var+0x604/0xeb0 drivers/video/fbdev/core/fbmem.c:1034 do_fb_ioctl+0x234/0x670 drivers/video/fbdev/core/fbmem.c:1110 fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1189 Fix this by checking the argument of i740_calc_vclk() first. Signed-off-by: Zheyu Ma <zheyuma97@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-08-03video: fbdev: arkfb: Fix a divide-by-zero bug in ark_set_pixclock()Zheyu Ma1-1/+6
Since the user can control the arguments of the ioctl() from the user space, under special arguments that may result in a divide-by-zero bug in: drivers/video/fbdev/arkfb.c:784: ark_set_pixclock(info, (hdiv * info->var.pixclock) / hmul); with hdiv=1, pixclock=1 and hmul=2 you end up with (1*1)/2 = (int) 0. and then in: drivers/video/fbdev/arkfb.c:504: rv = dac_set_freq(par->dac, 0, 1000000000 / pixclock); we'll get a division-by-zero. The following log can reveal it: divide error: 0000 [#1] PREEMPT SMP KASAN PTI RIP: 0010:ark_set_pixclock drivers/video/fbdev/arkfb.c:504 [inline] RIP: 0010:arkfb_set_par+0x10fc/0x24c0 drivers/video/fbdev/arkfb.c:784 Call Trace: fb_set_var+0x604/0xeb0 drivers/video/fbdev/core/fbmem.c:1034 do_fb_ioctl+0x234/0x670 drivers/video/fbdev/core/fbmem.c:1110 fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1189 Fix this by checking the argument of ark_set_pixclock() first. Fixes: 681e14730c73 ("arkfb: new framebuffer driver for ARK Logic cards") Signed-off-by: Zheyu Ma <zheyuma97@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-29video: fbdev: imxfb: fix return value check in imxfb_probe()Yang Yingliang1-2/+2
If devm_ioremap_resource() fails, it never return NULL, replace NULL test with IS_ERR(). Fixes: b083c22d5114 ("video: fbdev: imxfb: Convert request_mem_region + ioremap to devm_ioremap_resource") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-26video: fbdev: sis: fix typos in SiS_GetModeID()Rustam Subkhankulov1-2/+2
The second operand of a '&&' operator has no impact on expression result for cases 400 and 512 in SiS_GetModeID(). Judging by the logic and the names of the variables, in both cases a typo was made. Found by Linux Verification Center (linuxtesting.org) with SVACE. Signed-off-by: Rustam Subkhankulov <subkhankulov@ispras.ru> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-26video: fbdev: imxfb: Convert request_mem_region + ioremap to ↵Uwe Kleine-König1-17/+1
devm_ioremap_resource This has several advantages: - No need for manual undo of the two functions in the error path and the remove function. - Drops error handling in .remove() Note that returning early in .remove() yields resource leaks that often result in access of freed memory or unmapped registers later. - Fixes a resource leak request_mem_region allocates memory for the returned pointer that was never freed. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-26video: fbdev: imxfb: Fold <linux/platform_data/video-imxfb.h> into only userUwe Kleine-König1-1/+12
No source file but the driver itself includes the header containing the platform data definition. The last user is gone since commit 8485adf17a15 ("ARM: imx: Remove imx device directory"). Move the remaining symbols directly into the driver and remove the then unused header file. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-26video: fbdev: imxfb: Drop platform data supportUwe Kleine-König1-65/+34
No source file but the driver itself includes the header containing the platform data definition. The last user is gone since commit 8485adf17a15 ("ARM: imx: Remove imx device directory"). So we can safely drop platform data support. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-26video: fbdev: amba-clcd: Fix refcount leak bugsLiang He1-6/+18
In clcdfb_of_init_display(), we should call of_node_put() for the references returned by of_graph_get_next_endpoint() and of_graph_get_remote_port_parent() which have increased the refcount. Besides, we should call of_node_put() both in fail path or when the references are not used anymore. Fixes: d10715be03bd ("video: ARM CLCD: Add DT support") Signed-off-by: Liang He <windhl@126.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: omapfb: Unexport omap*_update_window_async()Helge Deller3-13/+2
There is no need to EXPORT the functions hwa742_update_window_async() and omapfb_update_window_async() since they are not used anywhere inside or outside the kernel tree. Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: atari: Remove backward bug-compatibilityGeert Uytterhoeven1-4/+0
As of v2.1.0, falcon_decode_var() contains a quirk to fix a rounding error, as explained by Günther Kelleter on Fri, 30 Aug 1996: This diff removes the now obsolete Falcon video option "pwrsave", and fixes a rounding error that is triggered by the resolution switching X server (those who use the pixel clock value 39722 in their /etc/fb.modes should change it to 39721). However, this causes the modified video mode returned by falcon_decode_var() to not match the video mode returned by falcon_encode_var(). Fix this by dropping the quirk. Unfortunately /etc/fb.modes in fbset was never updated, so the "640x480-60" mode still contains the wrong pixclock. Hence this change may introduce a regression. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: atari: Remove unused definitions and variablesGeert Uytterhoeven1-20/+0
Several definitions and variables are unused. Some variables are set but further unused. Remove them. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: atari: Fix VGA modesGeert Uytterhoeven1-2/+2
The pixclock values in the vga and vga70 modes are wrong, as they should use the 25.175 MHz clock instead of the 32 MHz clock. Swap the left and right margins to match f25.{right,left} (struct pixel_clock declares them in a different order), and update the hsync lengths to match what the driver programs by default. Correct the (wrong) floating-point vrefresh value for the vga mode. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: atari: Fix TT High video mode vertical refreshGeert Uytterhoeven1-1/+1
The vertical refresh rate for the TT High video mode (1280x960) is wrong. Fortunately this field is not really used. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: atari: Remove unneeded casts to void *Geert Uytterhoeven1-2/+2
Arbitrary pointers can be passed to functions accepting "void *" without casting. Remove the casts, as they make it impossible to validate types. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: atari: Remove unneeded casts from void *Geert Uytterhoeven1-6/+6
There is no need to cast fb_info.par to "struct atafb_par *", as the former has type "void *". Remove the casts, as they make it impossible to validate types. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: atari: Fix ext_setcolreg()Geert Uytterhoeven1-0/+4
The red, green, and blue color values are 16-bit, while the external graphics hardware registers are 8-bit. Add the missing conversion from 16-bit to 8-bit. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: atari: Fix inverse handlingGeert Uytterhoeven1-3/+1
Currently, the "inverse" option does not do anything, as it just sets a flag, which is further unused. Fix this by calling fb_invert_cmaps() instead, like other drivers do. As this only affects the console colormap, this does not affect X. Update the documentation to match the actual behavior. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: atari: Remove bogus FB_VMODE_YWRAP flagsGeert Uytterhoeven1-9/+9
Vertical wrap is not supported (fb_fix_screeninfo.ywrapstep = 0), hence there is no point in setting the FB_VMODE_YWRAP flag in video modes. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: atari: Simplify atafb_pan_display()Geert Uytterhoeven1-27/+2
The fb_pan_display() function in the core already takes care of validating the panning parameters before calling the driver's .fb_pan_display() callback, and of updating the panning state afterwards, so there is no need to repeat that in the driver. Remove the duplicate code. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: Make *fb_setup() and *fb_init() staticGeert Uytterhoeven8-23/+14
The various *fb_setup() and *fb_init() functions are only used locally, so they should be static. Most of them do not need forward declarations, so remove these where appropriate. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: cirrusfb: Make cirrusfb_zorro_unregister() staticGeert Uytterhoeven1-1/+1
cirrusfb_zorro_unregister() is only used locally, hence make it static. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: sa1100fb: Remove unused sa1100fb_setup()Geert Uytterhoeven1-41/+0
sa1100fb_setup() has been unused since the beginning of Linux git history. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-18video: fbdev: amiga: Simplify amifb_pan_display()Geert Uytterhoeven1-13/+2
The fb_pan_display() function in the core already takes care of validating most panning parameters before calling the driver's .fb_pan_display() callback, and of updating the panning state afterwards, so there is no need to repeat that in the driver. Remove the duplicate code. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-07fbcon: Use fbcon_info_from_console() in fbcon_modechange_possible()Helge Deller1-1/+1
Use the fbcon_info_from_console() wrapper which was added to kernel v5.19 with commit 409d6c95f9c6 ("fbcon: Introduce wrapper for console->fb_info lookup"). Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
2022-07-07fbmem: Check virtual screen sizes in fb_set_var()Helge Deller1-0/+10
Verify that the fbdev or drm driver correctly adjusted the virtual screen sizes. On failure report the failing driver and reject the screen size change. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: stable@vger.kernel.org # v5.4+
2022-07-07fbcon: Prevent that screen size is smaller than font sizeHelge Deller2-1/+31
We need to prevent that users configure a screen size which is smaller than the currently selected font size. Otherwise rendering chars on the screen will access memory outside the graphics memory region. This patch adds a new function fbcon_modechange_possible() which implements this check and which later may be extended with other checks if necessary. The new function is called from the FBIOPUT_VSCREENINFO ioctl handler in fbmem.c, which will return -EINVAL if userspace asked for a too small screen size. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: stable@vger.kernel.org # v5.4+
2022-07-07fbcon: Disallow setting font bigger than screen sizeHelge Deller1-0/+5
Prevent that users set a font size which is bigger than the physical screen. It's unlikely this may happen (because screens are usually much larger than the fonts and each font char is limited to 32x32 pixels), but it may happen on smaller screens/LCD displays. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: stable@vger.kernel.org # v4.14+
2022-07-06fbdev: fbmem: Fix logo center image dx issueGuiling Deng1-1/+1
Image.dx gets wrong value because of missing '()'. If xres == logo->width and n == 1, image.dx = -16. Signed-off-by: Guiling Deng <greens9@163.com> Fixes: 3d8b1933eb1c ("fbdev: fbmem: add config option to center the bootup logo") Cc: stable@vger.kernel.org # v5.0+ Signed-off-by: Helge Deller <deller@gmx.de>
2022-07-01Merge tag 'drm-misc-fixes-2022-06-30' of ↵Dave Airlie1-0/+12
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes A NULL pointer dereference fix for vc4, and 3 patches to improve the sysfb device behaviour when removing conflicting framebuffers Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20220630072404.2fa4z3nk5h5q34ci@houat
2022-06-29fbdev: Disable sysfb device registration when removing conflicting FBsJavier Martinez Canillas1-0/+12
The platform devices registered by sysfb match with firmware-based DRM or fbdev drivers, that are used to have early graphics using a framebuffer provided by the system firmware. DRM or fbdev drivers later are probed and remove conflicting framebuffers, leading to these platform devices for generic drivers to be unregistered. But the current solution has a race, since the sysfb_init() function could be called after a DRM or fbdev driver is probed and request to unregister the devices for drivers with conflicting framebuffes. To prevent this, disable any future sysfb platform device registration by calling sysfb_disable(), if a driver requests to remove the conflicting framebuffers. Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220607182338.344270-4-javierm@redhat.com
2022-06-26Merge tag 'for-5.19/fbdev-2' of ↵Linus Torvalds9-31/+21
git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev Pull fbdev fixes from Helge Deller: "Two bug fixes for the pxa3xx and intelfb drivers: - pxa3xx-gcu: Fix integer overflow in pxa3xx_gcu_write - intelfb: Initialize value of stolen size The other changes are small cleanups, simplifications and documentation updates to the cirrusfb, skeletonfb, omapfb, intelfb, au1100fb and simplefb drivers" * tag 'for-5.19/fbdev-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: video: fbdev: omap: Remove duplicate 'the' in comment video: fbdev: omapfb: Align '*' in comment video: fbdev: simplefb: Check before clk_put() not needed video: fbdev: au1100fb: Drop unnecessary NULL ptr check video: fbdev: pxa3xx-gcu: Fix integer overflow in pxa3xx_gcu_write video: fbdev: skeletonfb: Convert to generic power management video: fbdev: cirrusfb: Remove useless reference to PCI power management video: fbdev: intelfb: Initialize value of stolen size video: fbdev: intelfb: Use aperture size from pci_resource_len video: fbdev: skeletonfb: Fix syntax errors in comments
2022-06-22video: fbdev: omap: Remove duplicate 'the' in commentJiang Jian1-1/+1
Signed-off-by: Jiang Jian <jiangjian@cdjrlc.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-06-22video: fbdev: omapfb: Align '*' in commentJiang Jian1-1/+1
Consider '*' alignment in comments Signed-off-by: Jiang Jian <jiangjian@cdjrlc.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-06-20video: fbdev: simplefb: Check before clk_put() not neededYihao Han1-2/+1
clk_put() already checks the clk ptr using !clk and IS_ERR() so there is no need to check it again before calling it. Signed-off-by: Yihao Han <hanyihao@vivo.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-06-20video: fbdev: au1100fb: Drop unnecessary NULL ptr checkYihao Han1-4/+2
clk_disable() already checks the clk ptr using IS_ERR_OR_NULL(clk) and clk_enable() checks the clk ptr using !clk, so there is no need to check clk ptr again before calling them. Signed-off-by: Yihao Han <hanyihao@vivo.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-06-20video: fbdev: pxa3xx-gcu: Fix integer overflow in pxa3xx_gcu_writeHyunwoo Kim1-1/+1
In pxa3xx_gcu_write, a count parameter of type size_t is passed to words of type int. Then, copy_from_user() may cause a heap overflow because it is used as the third argument of copy_from_user(). Signed-off-by: Hyunwoo Kim <imv4bel@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-06-20video: fbdev: skeletonfb: Convert to generic power managementBjorn Helgaas1-6/+7
PCI-specific power management (pci_driver.suspend and pci_driver.resume) is deprecated. If drivers implement power management, they should use the generic power management framework, not the PCI-specific hooks. Convert the sample code to use the generic power management framework. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Helge Deller <deller@gmx.de>
2022-06-20video: fbdev: cirrusfb: Remove useless reference to PCI power managementBjorn Helgaas1-6/+0
PCI-specific power management (pci_driver.suspend and pci_driver.resume) is deprecated. The cirrusfb driver has never implemented power management at all, but if it ever does, it should use the generic power management framework, not the PCI-specific hooks. Remove the commented-out references to the PCI-specific power management hooks. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Helge Deller <deller@gmx.de>
2022-06-20video: fbdev: intelfb: Initialize value of stolen sizePetr Cvek1-2/+2
Variable stolen_size can be left uninitialized in a code path with INTEL_855_GMCH_GMS_DISABLED. Fix this by initializing the variable to 0. Also fix indentation of function arguments. Signed-off-by: Petr Cvek <petrcvekcz@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-06-20video: fbdev: intelfb: Use aperture size from pci_resource_lenPetr Cvek1-7/+5
Aperture size for i9x5 variants is determined from PCI base address. if (pci_resource_start(pdev, 2) & 0x08000000) *aperture_size = MB(128); ... This condition is incorrect as 128 MiB address can have the address set as 0x?8000000 or 0x?0000000. Also the code can be simplified to just use pci_resource_len(). The true settings of the aperture size is in the MSAC register, which could be used instead. However the value is used only as an info message, so it doesn't matter. Signed-off-by: Petr Cvek <petrcvekcz@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-06-20video: fbdev: skeletonfb: Fix syntax errors in commentsXiang wangx1-1/+1
Delete the redundant word 'its'. Signed-off-by: Xiang wangx <wangxiang@cdjrlc.com> Signed-off-by: Helge Deller <deller@gmx.de>
2022-06-07parisc/stifb: Fix fb_is_primary_device() only available with CONFIG_FB_STIHelge Deller1-0/+2
Fix this build error noticed by the kernel test robot: drivers/video/console/sticore.c:1132:5: error: redefinition of 'fb_is_primary_device' arch/parisc/include/asm/fb.h:18:19: note: previous definition of 'fb_is_primary_device' Signed-off-by: Helge Deller <deller@gmx.de> Reported-by: kernel test robot <lkp@intel.com> Cc: stable@vger.kernel.org # v5.10+
2022-06-04Merge tag 'for-5.19/parisc-2' of ↵Linus Torvalds4-11/+33
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull more parisc architecture updates from Helge Deller: "A fix to prevent crash at bootup if CONFIG_SCHED_MC is enabled, and add auto-detection of primary graphics card for framebuffer driver" * tag 'for-5.19/parisc-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc/stifb: Keep track of hardware path of graphics card parisc/stifb: Implement fb_is_primary_device() parisc: fix a crash with multicore scheduler
2022-06-04parisc/stifb: Keep track of hardware path of graphics cardHelge Deller3-9/+14
Keep the pa_path (hardware path) of the graphics card in sti_struct and use this info to give more useful info which card is currently being used. Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # v5.10+
2022-06-04parisc/stifb: Implement fb_is_primary_device()Helge Deller2-2/+19
Implement fb_is_primary_device() function, so that fbcon detects if this framebuffer belongs to the default graphics card which was used to start the system. Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # v5.10+
2022-06-02Merge tag 'arm-multiplatform-5.19-2' of ↵Linus Torvalds2-2/+182
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull more ARM multiplatform updates from Arnd Bergmann: "The second part of the multiplatform changes now converts the Intel/Marvell PXA platform along with the rest. The patches went through several rebases before the merge window as bugs were found, so they remained separate. This has to touch a lot of drivers, in particular the touchscreen, pcmcia, sound and clk bits, to detach the driver files from the platform and board specific header files" * tag 'arm-multiplatform-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (48 commits) ARM: pxa/mmp: remove traces of plat-pxa ARM: pxa: convert to multiplatform ARM: pxa/sa1100: move I/O space to PCI_IOBASE ARM: pxa: remove support for MTD_XIP ARM: pxa: move mach/*.h to mach-pxa/ ARM: PXA: fix multi-cpu build of xsc3 ARM: pxa: move plat-pxa to drivers/soc/ ARM: mmp: rename pxa_register_device ARM: mmp: remove tavorevb board support ARM: pxa: remove unused mach/bitfield.h ARM: pxa: move clk register definitions to driver ARM: pxa: move smemc register access from clk to platform cpufreq: pxa3: move clk register access to clk driver ARM: pxa: remove get_clk_frequency_khz() ARM: pxa: pcmcia: move smemc configuration back to arch ASoC: pxa: i2s: use normal MMIO accessors ASoC: pxa: ac97: use normal MMIO accessors ASoC: pxa: use pdev resource for FIFO regs Input: wm97xx - get rid of irq_enable method in wm97xx_mach_ops Input: wm97xx - switch to using threaded IRQ ...
2022-05-30Merge tag 'for-5.19/fbdev-1' of ↵Linus Torvalds8-40/+21
git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev Pull fbdev fixes and updates from Helge Deller: "A buch of small fixes and cleanups, including: - vesafb: Fix a use-after-free due early fb_info cleanup - clcdfb: Fix refcount leak in clcdfb_of_vram_setup - hyperv_fb: Allow resolutions with size > 64 MB for Gen1 - pxa3xx-gcu: release the resources correctly in pxa3xx_gcu_probe/remove() - omapfb: Prevent compiler warning regarding hwa742_update_window_async()" * tag 'for-5.19/fbdev-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: video: fbdev: omap: Add prototype for hwa742_update_window_async() video: fbdev: vesafb: Fix a use-after-free due early fb_info cleanup video: fbdev: radeon: Fix spelling typo in comment video: fbdev: xen: remove setting of 'transp' parameter video: fbdev: pxa3xx-gcu: release the resources correctly in pxa3xx_gcu_probe/remove() video: fbdev: omapfb: simplify the return expression of nec_8048_connect() video: fbdev: omapfb: simplify the return expression of dsi_init_pll_data() video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup video: fbdev: hyperv_fb: Allow resolutions with size > 64 MB for Gen1
2022-05-30Merge tag 'for-5.19/parisc-1' of ↵Linus Torvalds1-0/+21
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc architecture updates from Helge Deller: "Minor cleanups and code optimizations, e.g.: - improvements in assembly statements in the tmpalias code path - added some additionals compile time checks - drop some unneccesary assembler DMA syncs" * tag 'for-5.19/parisc-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Drop __ARCH_WANT_OLD_READDIR and __ARCH_WANT_SYS_OLDUMOUNT parisc: Optimize tmpalias function calls parisc: Add dep_safe() macro to deposit a register in 32- and 64-kernels parisc: Fix wrong comment for shr macro parisc: Prevent ldil() to sign-extend into upper 32 bits parisc: Don't hardcode assembler bit definitions in tmpalias code parisc: Don't enforce DMA completion order in cache flushes parisc: video: fbdev: stifb: Add sti_dump_font() to dump STI font
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