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2013-04-25fbcon: fix locking harderDave Airlie
commit 054430e773c9a1e26f38e30156eff02dedfffc17 upstream. Okay so Alan's patch handled the case where there was no registered fbcon, however the other path entered in set_con2fb_map pit. In there we called fbcon_takeover, but we also took the console lock in a couple of places. So push the console lock out to the callers of set_con2fb_map, this means fbmem and switcheroo needed to take the lock around the fb notifier entry points that lead to this. This should fix the efifb regression seen by Maarten. Tested-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Tested-by: Lu Hua <huax.lu@intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2013-03-06drivers/video/backlight/adp88?0_bl.c: fix resumeLars-Peter Clausen
commit 5eb02c01bd1f3ef195989ab05e835e2b0711b5a9 upstream. Clearing the NSTBY bit in the control register also automatically clears the BLEN bit. So we need to make sure to set it again during resume, otherwise the backlight will stay off. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2013-03-06fb: Yet another band-aid for fixing lockdep messTakashi Iwai
commit e93a9a868792ad71cdd09d75e5a02d8067473c4e upstream. I've still got lockdep warnings even after Alan's patch, and it seems that yet more band aids are required to paper over similar paths for unbind_con_driver() and unregister_con_driver(). After this hack, lockdep warnings are finally gone. Signed-off-by: Takashi Iwai <tiwai@suse.de> Cc: Alan Cox <alan@linux.intel.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Jiri Kosina <jkosina@suse.cz> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2013-03-06fb: rework locking to fix lock ordering on takeoverAlan Cox
commit 50e244cc793d511b86adea24972f3a7264cae114 upstream. Adjust the console layer to allow a take over call where the caller already holds the locks. Make the fb layer lock in order. This is partly a band aid, the fb layer is terminally confused about the locking rules it uses for its notifiers it seems. [akpm@linux-foundation.org: remove stray non-ascii char, tidy comment] [akpm@linux-foundation.org: export do_take_over_console()] [airlied: cleanup another non-ascii char] Signed-off-by: Alan Cox <alan@linux.intel.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Jiri Kosina <jkosina@suse.cz> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2013-03-06fbcon: don't lose the console font across generic->chip driver switchDave Airlie
commit ae1287865f5361fa138d4d3b1b6277908b54eac9 upstream. If grub2 loads efifb/vesafb, then when systemd starts it can set the console font on that framebuffer device, however when we then load the native KMS driver, the first thing it does is tear down the generic framebuffer driver. The thing is the generic code is doing the right thing, it frees the font because otherwise it would leak memory. However we can assume that if you are removing the generic firmware driver (vesa/efi/offb), that a new driver *should* be loading soon after, so we effectively leak the font. However the old code left a dangling pointer in vc->vc_font.data and we can now reuse that dangling pointer to load the font into the new driver, now that we aren't freeing it. Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=892340 Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2013-03-06vgacon/vt: clear buffer attributes when we load a 512 character font (v2)Dave Airlie
commit 2a2483072393b27f4336ab068a1f48ca19ff1c1e upstream. When we switch from 256->512 byte font rendering mode, it means the current contents of the screen is being reinterpreted. The bit that holds the high bit of the 9-bit font, may have been previously set, and thus the new font misrenders. The problem case we see is grub2 writes spaces with the bit set, so it ends up with data like 0x820, which gets reinterpreted into 0x120 char which the font translates into G with a circumflex. This flashes up on screen at boot and is quite ugly. A current side effect of this patch though is that any rendering on the screen changes color to a slightly darker color, but at least the screen no longer corrupts. v2: as suggested by hpa, always clear the attribute space, whether we are are going to or from 512 chars. Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2013-01-16video: mxsfb: fix crash when unblanking the displayLothar Waßmann
commit 6c1ecba8d84841277d68140ef485335d5be28485 upstream. The VDCTRL4 register does not provide the MXS SET/CLR/TOGGLE feature. The write in mxsfb_disable_controller() sets the data_cnt for the LCD DMA to 0 which obviously means the max. count for the LCD DMA and leads to overwriting arbitrary memory when the display is unblanked. Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Acked-by: Juergen Beisert <jbe@pengutronix.de> Tested-by: Lauri Hintsala <lauri.hintsala@bluegiga.net> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2012-10-30video/udlfb: fix line counting in fb_writeAlexander Holler
commit b8c4321f3d194469007f5f5f2b34ec278c264a04 upstream. Line 0 and 1 were both written to line 0 (on the display) and all subsequent lines had an offset of -1. The result was that the last line on the display was never overwritten by writes to /dev/fbN. Signed-off-by: Alexander Holler <holler@ahsoftware.de> Acked-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2012-10-30viafb: don't touch clock state on OLPC XO-1.5Daniel Drake
commit 012a1211845eab69a5488d59eb87d24cc518c627 upstream. As detailed in the thread titled "viafb PLL/clock tweaking causes XO-1.5 instability," enabling or disabling the IGA1/IGA2 clocks causes occasional stability problems during suspend/resume cycles on this platform. This is rather odd, as the documentation suggests that clocks have two states (on/off) and the default (stable) configuration is configured to enable the clock only when it is needed. However, explicitly enabling *or* disabling the clock triggers this system instability, suggesting that there is a 3rd state at play here. Leaving the clock enable/disable registers alone solves this problem. This fixes spurious reboots during suspend/resume behaviour introduced by commit b692a63a. Signed-off-by: Daniel Drake <dsd@laptop.org> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2012-09-19OMAPFB: fix framebuffer console colorsGrazvydas Ignotas
commit c1c52848cef52e157468b8879fc3cae23b6f3a99 upstream. omapfb does not currently set pseudo palette correctly for color depths above 16bpp, making red text invisible, command like echo -e '\e[0;31mRED' > /dev/tty1 will display nothing on framebuffer console in 24bpp mode. This is because temporary variable is declared incorrectly, fix it. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2012-09-12fbcon: fix race condition between console lock and cursor timer (v1.1)Dave Airlie
commit d8636a2717bb3da2a7ce2154bf08de90bb8c87b0 upstream. So we've had a fair few reports of fbcon handover breakage between efi/vesafb and i915 surface recently, so I dedicated a couple of days to finding the problem. Essentially the last thing we saw was the conflicting framebuffer message and that was all. So after much tracing with direct netconsole writes (printks under console_lock not so useful), I think I found the race. Thread A (driver load) Thread B (timer thread) unbind_con_driver -> | bind_con_driver -> | vc->vc_sw->con_deinit -> | fbcon_deinit -> | console_lock() | | | | fbcon_flashcursor timer fires | console_lock() <- blocked for A | | fbcon_del_cursor_timer -> del_timer_sync (BOOM) Of course because all of this is under the console lock, we never see anything, also since we also just unbound the active console guess what we never see anything. Hopefully this fixes the problem for anyone seeing vesafb->kms driver handoff. v1.1: add comment suggestion from Alan. Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2012-08-10video/smscufx: fix line counting in fb_writeAlexander Holler
commit 2fe2d9f47cfe1a3e66e7d087368b3d7155b04c15 upstream. Line 0 and 1 were both written to line 0 (on the display) and all subsequent lines had an offset of -1. The result was that the last line on the display was never overwritten by writes to /dev/fbN. The origin of this bug seems to have been udlfb. Signed-off-by: Alexander Holler <holler@ahsoftware.de> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2012-05-31OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on ↵Danny Kukawka
OMAP4 commit cc1d3e032df53d83d0ca4d537d8eb67eb5b3e808 upstream. Commit ba02fa37de80bea10d706f39f076dd848348320a disabled the venc driver registration on OMAP4. Since the driver never gets probed/initialised your get a dereferenceed NULL pointer if you try to get info from /sys/kernel/debug/omapdss/venc Return info message about disabled venc if venc_dump_regs() gets called. Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
2012-04-22video:uvesafb: Fix oops that uvesafb try to execute NX-protected pageWang YanQing
commit b78f29ca0516266431688c5eb42d39ce42ec039a upstream. This patch fix the oops below that catched in my machine [ 81.560602] uvesafb: NVIDIA Corporation, GT216 Board - 0696a290, Chip Rev , OEM: NVIDIA, VBE v3.0 [ 81.609384] uvesafb: protected mode interface info at c000:d350 [ 81.609388] uvesafb: pmi: set display start = c00cd3b3, set palette = c00cd40e [ 81.609390] uvesafb: pmi: ports = 3b4 3b5 3ba 3c0 3c1 3c4 3c5 3c6 3c7 3c8 3c9 3cc 3ce 3cf 3d0 3d1 3d2 3d3 3d4 3d5 3da [ 81.614558] uvesafb: VBIOS/hardware doesn't support DDC transfers [ 81.614562] uvesafb: no monitor limits have been set, default refresh rate will be used [ 81.614994] uvesafb: scrolling: ypan using protected mode interface, yres_virtual=4915 [ 81.744147] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) [ 81.744153] BUG: unable to handle kernel paging request at c00cd3b3 [ 81.744159] IP: [<c00cd3b3>] 0xc00cd3b2 [ 81.744167] *pdpt = 00000000016d6001 *pde = 0000000001c7b067 *pte = 80000000000cd163 [ 81.744171] Oops: 0011 [#1] SMP [ 81.744174] Modules linked in: uvesafb(+) cfbcopyarea cfbimgblt cfbfillrect [ 81.744178] [ 81.744181] Pid: 3497, comm: modprobe Not tainted 3.3.0-rc4NX+ #71 Acer Aspire 4741 /Aspire 4741 [ 81.744185] EIP: 0060:[<c00cd3b3>] EFLAGS: 00010246 CPU: 0 [ 81.744187] EIP is at 0xc00cd3b3 [ 81.744189] EAX: 00004f07 EBX: 00000000 ECX: 00000000 EDX: 00000000 [ 81.744191] ESI: f763f000 EDI: f763f6e8 EBP: f57f3a0c ESP: f57f3a00 [ 81.744192] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 81.744195] Process modprobe (pid: 3497, ti=f57f2000 task=f748c600 task.ti=f57f2000) [ 81.744196] Stack: [ 81.744197] f82512c5 f759341c 00000000 f57f3a30 c124a9bc 00000001 00000001 000001e0 [ 81.744202] f8251280 f763f000 f7593400 00000000 f57f3a40 c12598dd f5c0c000 00000000 [ 81.744206] f57f3b10 c1255efe c125a21a 00000006 f763f09c 00000000 c1c6cb60 f7593400 [ 81.744210] Call Trace: [ 81.744215] [<f82512c5>] ? uvesafb_pan_display+0x45/0x60 [uvesafb] [ 81.744222] [<c124a9bc>] fb_pan_display+0x10c/0x160 [ 81.744226] [<f8251280>] ? uvesafb_vbe_find_mode+0x180/0x180 [uvesafb] [ 81.744230] [<c12598dd>] bit_update_start+0x1d/0x50 [ 81.744232] [<c1255efe>] fbcon_switch+0x39e/0x550 [ 81.744235] [<c125a21a>] ? bit_cursor+0x4ea/0x560 [ 81.744240] [<c129b6cb>] redraw_screen+0x12b/0x220 [ 81.744245] [<c128843b>] ? tty_do_resize+0x3b/0xc0 [ 81.744247] [<c129ef42>] vc_do_resize+0x3d2/0x3e0 [ 81.744250] [<c129efb4>] vc_resize+0x14/0x20 [ 81.744253] [<c12586bd>] fbcon_init+0x29d/0x500 [ 81.744255] [<c12984c4>] ? set_inverse_trans_unicode+0xe4/0x110 [ 81.744258] [<c129b378>] visual_init+0xb8/0x150 [ 81.744261] [<c129c16c>] bind_con_driver+0x16c/0x360 [ 81.744264] [<c129b47e>] ? register_con_driver+0x6e/0x190 [ 81.744267] [<c129c3a1>] take_over_console+0x41/0x50 [ 81.744269] [<c1257b7a>] fbcon_takeover+0x6a/0xd0 [ 81.744272] [<c12594b8>] fbcon_event_notify+0x758/0x790 [ 81.744277] [<c10929e2>] notifier_call_chain+0x42/0xb0 [ 81.744280] [<c1092d30>] __blocking_notifier_call_chain+0x60/0x90 [ 81.744283] [<c1092d7a>] blocking_notifier_call_chain+0x1a/0x20 [ 81.744285] [<c124a5a1>] fb_notifier_call_chain+0x11/0x20 [ 81.744288] [<c124b759>] register_framebuffer+0x1d9/0x2b0 [ 81.744293] [<c1061c73>] ? ioremap_wc+0x33/0x40 [ 81.744298] [<f82537c6>] uvesafb_probe+0xaba/0xc40 [uvesafb] [ 81.744302] [<c12bb81f>] platform_drv_probe+0xf/0x20 [ 81.744306] [<c12ba558>] driver_probe_device+0x68/0x170 [ 81.744309] [<c12ba731>] __device_attach+0x41/0x50 [ 81.744313] [<c12b9088>] bus_for_each_drv+0x48/0x70 [ 81.744316] [<c12ba7f3>] device_attach+0x83/0xa0 [ 81.744319] [<c12ba6f0>] ? __driver_attach+0x90/0x90 [ 81.744321] [<c12b991f>] bus_probe_device+0x6f/0x90 [ 81.744324] [<c12b8a45>] device_add+0x5e5/0x680 [ 81.744329] [<c122a1a3>] ? kvasprintf+0x43/0x60 [ 81.744332] [<c121e6e4>] ? kobject_set_name_vargs+0x64/0x70 [ 81.744335] [<c121e6e4>] ? kobject_set_name_vargs+0x64/0x70 [ 81.744339] [<c12bbe9f>] platform_device_add+0xff/0x1b0 [ 81.744343] [<f8252906>] uvesafb_init+0x50/0x9b [uvesafb] [ 81.744346] [<c100111f>] do_one_initcall+0x2f/0x170 [ 81.744350] [<f82528b6>] ? uvesafb_is_valid_mode+0x66/0x66 [uvesafb] [ 81.744355] [<c10c6994>] sys_init_module+0xf4/0x1410 [ 81.744359] [<c1157fc0>] ? vfsmount_lock_local_unlock_cpu+0x30/0x30 [ 81.744363] [<c144cb10>] sysenter_do_call+0x12/0x36 [ 81.744365] Code: f5 00 00 00 32 f6 66 8b da 66 d1 e3 66 ba d4 03 8a e3 b0 1c 66 ef b0 1e 66 ef 8a e7 b0 1d 66 ef b0 1f 66 ef e8 fa 00 00 00 61 c3 <60> e8 c8 00 00 00 66 8b f3 66 8b da 66 ba d4 03 b0 0c 8a e5 66 [ 81.744388] EIP: [<c00cd3b3>] 0xc00cd3b3 SS:ESP 0068:f57f3a00 [ 81.744391] CR2: 00000000c00cd3b3 [ 81.744393] ---[ end trace 18b2c87c925b54d6 ]--- Signed-off-by: Wang YanQing <udknight@gmail.com> Cc: Michal Januszewski <spock@gentoo.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-02backlight: fix typo in tosa_lcd.cMasanari Iida
commit 8da00edc1069f01c34510fa405dc15d96c090a3f upstream. Fix typo in drivers/video/backlight/tosa_lcd.c "tosa_lcd_reume" should be "tosa_lcd_resume". Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-02udlfb: remove sysfs framebuffer device with USB .disconnect()Kay Sievers
commit ce880cb860f36694d2cdebfac9e6ae18176fe4c4 upstream. The USB graphics card driver delays the unregistering of the framebuffer device to a workqueue, which breaks the userspace visible remove uevent sequence. Recent userspace tools started to support USB graphics card hotplug out-of-the-box and rely on proper events sent by the kernel. The framebuffer device is a direct child of the USB interface which is removed immediately after the USB .disconnect() callback. But the fb device in /sys stays around until its final cleanup, at a time where all the parent devices have been removed already. To work around that, we remove the sysfs fb device directly in the USB .disconnect() callback and leave only the cleanup of the internal fb data to the delayed work. Before: add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2 (usb) add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0 (usb) add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/graphics/fb0 (graphics) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0 (usb) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2 (usb) remove /2-1.2:1.0/graphics/fb0 (graphics) After: add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2 (usb) add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0 (usb) add /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/graphics/fb1 (graphics) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/graphics/fb1 (graphics) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0 (usb) remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2 (usb) Tested-by: Bernie Thompson <bernie@plugable.com> Acked-by: Bernie Thompson <bernie@plugable.com> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-12OMAPDSS: HDMI: hot plug detect fixRob Clark
commit ca888a7958b3d808e4efd08ceff88913f4212c69 upstream. The "OMAPDSS: HDMI: PHY burnout fix" commit switched the HDMI driver over to using a GPIO for plug detect. Unfortunately the ->detect() method was not also updated, causing HDMI to no longer work for the omapdrm driver (because it would actually check if a connection was detected before attempting to enable display). Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-12OMAPDSS: HDMI: PHY burnout fixTomi Valkeinen
commit c49d005b6cc8491fad5b24f82805be2d6bcbd3dd upstream. A hardware bug in the OMAP4 HDMI PHY causes physical damage to the board if the HDMI PHY is kept powered on when the cable is not connected. This patch solves the problem by adding hot-plug-detection into the HDMI IP driver. This is not a real HPD support in the sense that nobody else than the IP driver gets to know about the HPD events, but is only meant to fix the HW bug. The strategy is simple: If the display device is turned off by the user, the PHY power is set to OFF. When the display device is turned on by the user, the PHY power is set either to LDOON or TXON, depending on whether the HDMI cable is connected. The reason to avoid PHY OFF when the display device is on, but the cable is disconnected, is that when the PHY is turned OFF, the HDMI IP is not "ticking" and thus the DISPC does not receive pixel clock from the HDMI IP. This would, for example, prevent any VSYNCs from happening, and would thus affect the users of omapdss. By using LDOON when the cable is disconnected we'll avoid the HW bug, but keep the HDMI working as usual from the user's point of view. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-12viafb: fix IGA1 modesetting on VX900Florian Tobias Schandinat
commit e29206381a1436e0f47c0f5b9a23159a03c57715 upstream. Even if the documentation calls this bit "Reserved" it has to be set to 0 for correct modesetting on IGA1. Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-12viafb: select HW scaling on VX900 for IGA2Florian Tobias Schandinat
commit 050f0e02c8dc38b2b4f2df345ac760d22ca5c7ba upstream. VX900 can do hardware scaling for both IGAs in contrast to previous hardware which could do it only for IGA2. This patch ensures that we set the parameter for IGA2 and not for IGA1. This fixes hardware scaling on VX900 until we have the infrastructure to support it for both IGAs. Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-29ARM: omap: fix oops in drivers/video/omap2/dss/dpi.cRussell King
commit 40410715715178ec196314dd0c19150c06901f80 upstream. When a PMIC is not found, this driver is unable to obtain its 'vdds_dsi_reg' regulator. Even through its initialization function fails, other code still calls its enable function, which fails to check whether it has this regulator before asking for it to be enabled. This fixes the oops, however a better fix would be to sort out the upper layers to prevent them calling into a module which failed to initialize. Unable to handle kernel NULL pointer dereference at virtual address 00000038 pgd = c0004000 [00000038] *pgd=00000000 Internal error: Oops: 5 [#1] PREEMPT Modules linked in: CPU: 0 Not tainted (3.3.0-rc2+ #228) PC is at regulator_enable+0x10/0x70 LR is at omapdss_dpi_display_enable+0x54/0x15c pc : [<c01b9a08>] lr : [<c01af994>] psr: 60000013 sp : c181fd90 ip : c181fdb0 fp : c181fdac r10: c042eff0 r9 : 00000060 r8 : c044a164 r7 : c042c0e4 r6 : c042bd60 r5 : 00000000 r4 : c042bd60 r3 : c084de48 r2 : c181e000 r1 : c042bd60 r0 : 00000000 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c5387d Table: 80004019 DAC: 00000015 Process swapper (pid: 1, stack limit = 0xc181e2e8) Stack: (0xc181fd90 to 0xc1820000) fd80: c001754c c042bd60 00000000 c042bd60 fda0: c181fdcc c181fdb0 c01af994 c01b9a04 c0016104 c042bd60 c042bd60 c044a338 fdc0: c181fdec c181fdd0 c01b5ed0 c01af94c c042bd60 c042bd60 c1aa8000 c1aa8a0c fde0: c181fe04 c181fdf0 c01b5f54 c01b5ea8 c02fc18c c042bd60 c181fe3c c181fe08 fe00: c01b2a18 c01b5f48 c01aed14 c02fc160 c01df8ec 00000002 c042bd60 00000003 fe20: c042bd60 c1aa8000 c1aa8a0c c042eff8 c181fe84 c181fe40 c01b3874 c01b29fc fe40: c042eff8 00000000 c042f000 c0449db8 c044ed78 00000000 c181fe74 c042eff8 fe60: c042eff8 c0449db8 c0449db8 c044ed78 00000000 00000000 c181fe94 c181fe88 fe80: c01e452c c01b35e8 c181feb4 c181fe98 c01e2fdc c01e4518 c042eff8 c0449db8 fea0: c0449db8 c181fef0 c181fecc c181feb8 c01e3104 c01e2f48 c042eff8 c042f02c fec0: c181feec c181fed0 c01e3190 c01e30c0 c01e311c 00000000 c01e311c c0449db8 fee0: c181ff14 c181fef0 c01e1998 c01e3128 c18330a8 c1892290 c04165e8 c0449db8 ff00: c0449db8 c1ab60c0 c181ff24 c181ff18 c01e2e28 c01e194c c181ff54 c181ff28 ff20: c01e2218 c01e2e14 c039afed c181ff38 c04165e8 c041660c c0449db8 00000013 ff40: 00000000 c03ffdb8 c181ff7c c181ff58 c01e384c c01e217c c181ff7c c04165e8 ff60: c041660c c003a37c 00000013 00000000 c181ff8c c181ff80 c01e488c c01e3790 ff80: c181ff9c c181ff90 c03ffdcc c01e484c c181ffdc c181ffa0 c0008798 c03ffdc4 ffa0: c181ffc4 c181ffb0 c0056440 c0187810 c003a37c c04165e8 c041660c c003a37c ffc0: 00000013 00000000 00000000 00000000 c181fff4 c181ffe0 c03ea284 c0008708 ffe0: 00000000 c03ea208 00000000 c181fff8 c003a37c c03ea214 1073cec0 01f7ee08 Backtrace: [<c01b99f8>] (regulator_enable+0x0/0x70) from [<c01af994>] (omapdss_dpi_display_enable+0x54/0x15c) r6:c042bd60 r5:00000000 r4:c042bd60 [<c01af940>] (omapdss_dpi_display_enable+0x0/0x15c) from [<c01b5ed0>] (generic_dpi_panel_power_on+0x34/0x78) r6:c044a338 r5:c042bd60 r4:c042bd60 [<c01b5e9c>] (generic_dpi_panel_power_on+0x0/0x78) from [<c01b5f54>] (generic_dpi_panel_enable+0x18/0x28) r7:c1aa8a0c r6:c1aa8000 r5:c042bd60 r4:c042bd60 [<c01b5f3c>] (generic_dpi_panel_enable+0x0/0x28) from [<c01b2a18>] (omapfb_init_display+0x28/0x150) r4:c042bd60 [<c01b29f0>] (omapfb_init_display+0x0/0x150) from [<c01b3874>] (omapfb_probe+0x298/0x318) r8:c042eff8 r7:c1aa8a0c r6:c1aa8000 r5:c042bd60 r4:00000003 [<c01b35dc>] (omapfb_probe+0x0/0x318) from [<c01e452c>] (platform_drv_probe+0x20/0x24) [<c01e450c>] (platform_drv_probe+0x0/0x24) from [<c01e2fdc>] (really_probe+0xa0/0x178) [<c01e2f3c>] (really_probe+0x0/0x178) from [<c01e3104>] (driver_probe_device+0x50/0x68) r7:c181fef0 r6:c0449db8 r5:c0449db8 r4:c042eff8 [<c01e30b4>] (driver_probe_device+0x0/0x68) from [<c01e3190>] (__driver_attach+0x74/0x98) r5:c042f02c r4:c042eff8 [<c01e311c>] (__driver_attach+0x0/0x98) from [<c01e1998>] (bus_for_each_dev+0x58/0x98) r6:c0449db8 r5:c01e311c r4:00000000 [<c01e1940>] (bus_for_each_dev+0x0/0x98) from [<c01e2e28>] (driver_attach+0x20/0x28) r7:c1ab60c0 r6:c0449db8 r5:c0449db8 r4:c04165e8 [<c01e2e08>] (driver_attach+0x0/0x28) from [<c01e2218>] (bus_add_driver+0xa8/0x22c) [<c01e2170>] (bus_add_driver+0x0/0x22c) from [<c01e384c>] (driver_register+0xc8/0x154) [<c01e3784>] (driver_register+0x0/0x154) from [<c01e488c>] (platform_driver_register+0x4c/0x60) r8:00000000 r7:00000013 r6:c003a37c r5:c041660c r4:c04165e8 [<c01e4840>] (platform_driver_register+0x0/0x60) from [<c03ffdcc>] (omapfb_init+0x14/0x34) [<c03ffdb8>] (omapfb_init+0x0/0x34) from [<c0008798>] (do_one_initcall+0x9c/0x164) [<c00086fc>] (do_one_initcall+0x0/0x164) from [<c03ea284>] (kernel_init+0x7c/0x120) [<c03ea208>] (kernel_init+0x0/0x120) from [<c003a37c>] (do_exit+0x0/0x2d8) r5:c03ea208 r4:00000000 Code: e1a0c00d e92dd870 e24cb004 e24dd004 (e5906038) ---[ end trace 9e2474c2e193b223 ]--- Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-13atmel_lcdfb: fix usage of CONTRAST_CTR in suspend/resumeHubert Feurstein
commit 9f1065032ceb7e86c7c9f16bb86518857e88a172 upstream. An error was existing in the saving of CONTRAST_CTR register across suspend/resume. Signed-off-by: Hubert Feurstein <h.feurstein@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-01-12offb: Fix bug in calculating requested vram sizeBenjamin Herrenschmidt
commit c055fe0797b7bd8f6f21a13598a55a16d5c13ae7 upstream. We used to try to request 8 times more vram than needed, which would fail if the card has a too small BAR (observed with qemu & kvm). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-12offb: Fix setting of the pseudo-palette for >8bppBenjamin Herrenschmidt
commit 1bb0b7d21584b3f878e2bc880db62351ddee5185 upstream. When using a >8bpp framebuffer, offb advertises truecolor, not directcolor, and doesn't touch the color map even if it has a corresponding access method for the real hardware. Thus it needs to set the pseudo-palette with all 3 components of the color, like other truecolor framebuffers, not with copies of the color index like a directcolor framebuffer would do. This went unnoticed for a long time because it's pretty hard to get offb to kick in with anything but 8bpp (old BootX under MacOS will do that and qemu does it). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-11-22viafb: correct sync polarity for OLPC DCONDaniel Drake
While the OLPC display appears to be able to handle either positive or negative sync, the Display Controller only recognises positive sync. This brings viafb (for XO-1.5) in line with lxfb (for XO-1) and fixes a recent regression where the XO-1.5 DCON could no longer be frozen. Thanks to Florian Tobias Schandinat for helping identify the fix. Test case: from a vt, echo 1 > /sys/devices/platform/dcon/freeze should cause the current screen contents to freeze, rather than garbage being displayed. Signed-off-by: Daniel Drake <dsd@laptop.org> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: stable@kernel.org
2011-11-22Merge branch 'for-3.2-rc' of git://gitorious.org/linux-omap-dss2/linux into ↵Florian Tobias Schandinat
fbdev-for-linus
2011-11-22video:da8xx-fb: Disable and reset sequence on version2 of LCDCManjunathappa, Prakash
Patch follows the disable and software reset sequence specified in version2 to LCDC functional specification. Without this flicker is observed on re-enabling the LCDC. Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-11-18OMAPDSS: DISPC: skip scaling calculations when not scalingTomi Valkeinen
Current code calculates scaling factors for video overlays even when the overlays are not scaled. Change the code to skip calculations when not scaling. This optimizes the code a bit, but also fixes a problem when configuring an overlay for a disabled display: if the display is disabled we don't necessarily know the pixel clock used when the display is enabled, and in some cases (like HDMI) the pixel clock is set to zero until a proper video mode is set later. A wrong pixel clock will mess up the scaling calculations, causing an error like: omapdss DISPC error: failed to set up scaling, required fclk rate = 0 Hz, current fclk rate = 170666666 Hz A proper fix would be to check later whether the clocks are enough for the scaling, at the point when the overlay or display is actually enabled, but this patch removes the problem for now. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-11-18OMAPFB: fix compilation warnings due to missing includeTomi Valkeinen
Fix warnings similar to this by including module.h: drivers/video/omap/dispc.c:276:1: warning: data definition has no type or storage class drivers/video/omap/dispc.c:276:1: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-11-18OMAPDSS: HDMI: fix returned HDMI pixel clockTomi Valkeinen
hdmi_get_pixel_clock() returns the pixel clock in Hz, but the pck is stored as kHz. This means the return value has to be multiplied by 1000, not by 10000 as the code did. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2011-11-06Merge branch 'modsplit-Oct31_2011' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux * 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits) Revert "tracing: Include module.h in define_trace.h" irq: don't put module.h into irq.h for tracking irqgen modules. bluetooth: macroize two small inlines to avoid module.h ip_vs.h: fix implicit use of module_get/module_put from module.h nf_conntrack.h: fix up fallout from implicit moduleparam.h presence include: replace linux/module.h with "struct module" wherever possible include: convert various register fcns to macros to avoid include chaining crypto.h: remove unused crypto_tfm_alg_modname() inline uwb.h: fix implicit use of asm/page.h for PAGE_SIZE pm_runtime.h: explicitly requires notifier.h linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h miscdevice.h: fix up implicit use of lists and types stop_machine.h: fix implicit use of smp.h for smp_processor_id of: fix implicit use of errno.h in include/linux/of.h of_platform.h: delete needless include <linux/module.h> acpi: remove module.h include from platform/aclinux.h miscdevice.h: delete unnecessary inclusion of module.h device_cgroup.h: delete needless include <linux/module.h> net: sch_generic remove redundant use of <linux/module.h> net: inet_timewait_sock doesnt need <linux/module.h> ... Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in - drivers/media/dvb/frontends/dibx000_common.c - drivers/media/video/{mt9m111.c,ov6650.c} - drivers/mfd/ab3550-core.c - include/linux/dmaengine.h
2011-11-03Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (37 commits) MIPS: O32: Provide definition of registers ta0 .. ta3. MIPS: perf: Add Octeon support for hardware perf. MIPS: perf: Add support for 64-bit perf counters. MIPS: perf: Reorganize contents of perf support files. MIPS: perf: Cleanup formatting in arch/mips/kernel/perf_event.c MIPS: Add accessor macros for 64-bit performance counter registers. MIPS: Add probes for more Octeon II CPUs. MIPS: Add more CPU identifiers for Octeon II CPUs. MIPS: XLR, XLS: Add comment for smp setup MIPS: JZ4740: GPIO: Check correct IRQ in demux handler MIPS: JZ4740: GPIO: Simplify IRQ demuxer MIPS: JZ4740: Use generic irq chip MIPS: Alchemy: remove all CONFIG_SOC_AU1??? defines MIPS: Alchemy: kill au1xxx.h header MIPS: Alchemy: clean DMA code of CONFIG_SOC_AU1??? defines MIPS, IDE: Alchem, au1xxx-ide: Remove pb1200/db1200 header dep MIPS: Alchemy: Redo PCI as platform driver MIPS: Alchemy: more base address cleanup MIPS: Alchemy: rewrite USB platform setup. MIPS: Alchemy: abstract USB block control register access ... Fix up trivial conflicts in: arch/mips/alchemy/devboards/db1x00/platform.c drivers/ide/Kconfig drivers/mmc/host/au1xmmc.c drivers/video/Kconfig sound/mips/Kconfig
2011-11-01Merge branch 'next/fixes' of git://git.linaro.org/people/arnd/arm-socLinus Torvalds
* 'next/fixes' of git://git.linaro.org/people/arnd/arm-soc: (28 commits) ARM: pxa/cm-x300: properly set bt_reset pin ARM: mmp: rename SHEEVAD to GPLUGD ARM: imx: Fix typo 'MACH_MX31_3DS_MXC_NAND_USE_BBT' ARM: i.MX28: shift frac value in _CLK_SET_RATE plat-mxc: iomux-v3.h: implicitly enable pull-up/down when that's desired ARM: mx5: fix clock usage for suspend ARM: pxa: use correct __iomem annotations ARM: pxa: sharpsl pm needs SPI ARM: pxa: centro and treo680 need palm27x ARM: pxa: make pxafb_smart_*() empty when not enabled ARM: pxa: select POWER_SUPPLY on raumfeld ARM: pxa: pxa95x is incompatible with earlier pxa ARM: pxa: CPU_FREQ_TABLE is needed for CPU_FREQ ARM: pxa: pxa95x/saarb depends on pxa3xx code ARM: pxa: allow selecting just one of TREO680/CENTRO ARM: pxa: export symbols from pxa3xx-ulpi ARM: pxa: make zylonite_pxa*_init declaration match code ARM: pxa/z2: fix building error of pxa27x_cpu_suspend() no longer available ARM: at91: add defconfig for at91sam9g45 family ARM: at91: remove dependency for Atmel PWM driver selector in Kconfig ...
2011-10-31backlight: rename corgibl_limit_intensity() to genericbl_limit_intensity()Axel Lin
The rename of corgibl_limit_intensity is missed in commit d00ba726 ("backlight: Rename the corgi backlight driver to generic"). Let's fix it now. Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-31drivers/video/backlight/l4f00242t03.c: use gpio_request_one() to simplify ↵Fabio Estevam
error handling Using gpio_request_one can make the error handling simpler. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-31backlight: fix broken regulator API usage in l4f00242t03Mark Brown
The regulator support in the l4f00242t03 is very non-idiomatic. Rather than requesting the regulators based on the device name and the supply names used by the device the driver requires boards to pass system specific supply names around through platform data. The driver also conditionally requests the regulators based on this platform data, adding unneeded conditional code to the driver. Fix this by removing the platform data and converting to the standard idiom, also updating all in tree users of the driver. As no datasheet appears to be available for the LCD I'm guessing the names for the supplies based on the existing users and I've no ability to do anything more than compile test. The use of regulator_set_voltage() in the driver is also problematic, since fixed voltages are required the expectation would be that the voltages would be fixed in the constraints set by the machines rather than manually configured by the driver, but is less problematic. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Tested-by: Fabio Estevam <fabio.estevam@freescale.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-31video/backlight: remove obsolete cleanup for clientdataWolfram Sang
A few new i2c-drivers came into the kernel which clear the clientdata-pointer on exit or error. This is obsolete meanwhile, the core will do it. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Paul Mundt <lethal@linux-sh.org> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-31video: Add module.h to drivers/video files who really use it.Paul Gortmaker
They were getting this implicitly by an include of module.h from device.h -- but we are going to clean that up and break that include chain, so include module.h explicitly now. [ with contributions from Axel Lin <axel.lin@gmail.com> ] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31video: Add export.h for THIS_MODULE/EXPORT_SYMBOL to drivers/videoPaul Gortmaker
With module.h being implicitly everywhere via device.h, the absence of explicitly including something for EXPORT_SYMBOL went unnoticed. Since we are heading to fix things up and clean module.h from the device.h file, we need to explicitly include these files now. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-10-31Merge branch 'depends/rmk/gpio' into next/fixesArnd Bergmann
This sorts out merge conflicts with the arm/gpio branch that already got merged into mainline Linux. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-10-30Merge branch 'fbdev-next' of git://github.com/schandinat/linux-2.6Linus Torvalds
* 'fbdev-next' of git://github.com/schandinat/linux-2.6: (270 commits) video: platinumfb: Add __devexit_p at necessary place drivers/video: fsl-diu-fb: merge diu_pool into fsl_diu_data drivers/video: fsl-diu-fb: merge diu_hw into fsl_diu_data drivers/video: fsl-diu-fb: only DIU modes 0 and 1 are supported drivers/video: fsl-diu-fb: remove unused panel operating mode support drivers/video: fsl-diu-fb: use an enum for the AOI index drivers/video: fsl-diu-fb: add several new video modes drivers/video: fsl-diu-fb: remove broken screen blanking support drivers/video: fsl-diu-fb: move some definitions out of the header file drivers/video: fsl-diu-fb: fix some ioctls video: da8xx-fb: Increased resolution configuration of revised LCDC IP OMAPDSS: picodlp: add missing #include <linux/module.h> fb: fix au1100fb bitrot. mx3fb: fix NULL pointer dereference in screen blanking. video: irq: Remove IRQF_DISABLED smscufx: change edid data to u8 instead of char OMAPDSS: DISPC: zorder support for DSS overlays OMAPDSS: DISPC: VIDEO3 pipeline support OMAPDSS/OMAP_VOUT: Fix incorrect OMAP3-alpha compatibility setting video/omap: fix build dependencies ... Fix up conflicts in: - drivers/staging/xgifb/XGI_main_26.c Changes to XGIfb_pan_var() - drivers/video/omap/{lcd_apollon.c,lcd_ldp.c,lcd_overo.c} Removed (or in the case of apollon.c, merged into the generic DSS panel in drivers/video/omap2/displays/panel-generic-dpi.c)
2011-10-27Merge branch 'clk' of ↵Linus Torvalds
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'clk' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: ARM: 7131/1: clkdev: Add Common Macro for clk_lookup clk: spi-pl022: convert to clk_prepare()/clk_unprepare() clk: timer-sp: convert to clk_prepare()/clk_unprepare() clk: sa1111: convert to clk_prepare()/clk_unprepare() clk: mmci: convert to clk_prepare()/clk_unprepare() clk: amba-pl011: convert to clk_prepare()/clk_unprepare() clk: amba-pl010: convert to clk_prepare()/clk_unprepare() clk: amba-clcd: convert to clk_prepare()/clk_unprepare() clk: amba bus: convert to clk_prepare()/clk_unprepare() clk: provide prepare/unprepare functions
2011-10-27Merge branch 'gpio' of ↵Linus Torvalds
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'gpio' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (43 commits) ARM: 7135/1: ep93xx: bring back missing <mach/gpio.h> ARM: 7104/1: plat-pxa: break out GPIO driver specifics ARM: 7103/1: plat-pxa: move PXA GPIO driver to GPIO subsystem ARM: 7042/3: mach-ep93xx: break out GPIO driver specifics ARM: 7101/1: arm/tegra: Replace <mach/gpio.h> with <mach/gpio-tegra.h> ARM: 7094/1: arm/tegra: Move EN_VDD_1V05_GPIO to board-harmony.h ARM: 7083/1: rewrite U300 GPIO to use gpiolib ARM: 7074/1: gpio: davinci: eliminate unused variable warnings ARM: 7063/1: Orion: gpio: add missing include of linux/types.h ARM: 7055/1: arm/tegra: mach/gpio.h: include linux/types.h to fix build ARM: 7054/1: arm/tegra: Delete custom gpio_to_irq, and irq_to_gpio ARM: 7053/1: gpio/tegra: Implement gpio_chip.to_irq ARM: 7052/1: gpio/tegra: Remove use of irq_to_gpio ARM: 7057/1: mach-pnx4008: rename GPIO header ARM: 7056/1: plat-nomadik: kill off <plat/gpio.h> ARM: 7050/1: mach-sa1100: delete irq_to_gpio() function ARM: 7049/1: mach-sa1100: move SA1100 GPIO driver to GPIO subsystem ARM: 7045/1: mach-lpc32xx: break out GPIO driver specifics ARM: 7044/1: mach-lpc32xx: move LPC32XX GPIO driver to GPIO subsystem ARM: 7043/1: mach-ixp2000: rename GPIO header ... Fix up trivial conflicts in arch/arm/mach-u300/Kconfig manually
2011-10-26Merge branch 'core-locking-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits) rtmutex: Add missing rcu_read_unlock() in debug_rt_mutex_print_deadlock() lockdep: Comment all warnings lib: atomic64: Change the type of local lock to raw_spinlock_t locking, lib/atomic64: Annotate atomic64_lock::lock as raw locking, x86, iommu: Annotate qi->q_lock as raw locking, x86, iommu: Annotate irq_2_ir_lock as raw locking, x86, iommu: Annotate iommu->register_lock as raw locking, dma, ipu: Annotate bank_lock as raw locking, ARM: Annotate low level hw locks as raw locking, drivers/dca: Annotate dca_lock as raw locking, powerpc: Annotate uic->lock as raw locking, x86: mce: Annotate cmci_discover_lock as raw locking, ACPI: Annotate c3_lock as raw locking, oprofile: Annotate oprofilefs lock as raw locking, video: Annotate vga console lock as raw locking, latencytop: Annotate latency_lock as raw locking, timer_stats: Annotate table_lock as raw locking, rwsem: Annotate inner lock as raw locking, semaphores: Annotate inner lock as raw locking, sched: Annotate thread_group_cputimer as raw ... Fix up conflicts in kernel/posix-cpu-timers.c manually: making cputimer->cputime a raw lock conflicted with the ABBA fix in commit bcd5cff7216f ("cputimer: Cure lock inversion").
2011-10-24MIPS: Alchemy: remove all CONFIG_SOC_AU1??? definesManuel Lauss
Now that no driver any longer depends on the CONFIG_SOC_AU1??? symbols, it's time to get rid of them: Move some of the platform devices to the boards which can use them, Rename a few (unused) constants in the header, Replace them with MIPS_ALCHEMY in the various Kconfig files. Finally delete them altogether from the Alchemy Kconfig file. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/2707/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-10-15video: platinumfb: Add __devexit_p at necessary placeAxel Lin
According to the comments in include/linux/init.h: "Pointers to __devexit functions must use __devexit_p(function_name), the wrapper will insert either the function_name or NULL, depending on the config options." We have __devexit annotation for platinumfb_remove(), thus add __devexit_p at necessary place. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2011-10-15Merge branch 'for-florian' of git://gitorious.org/linux-omap-dss2/linux into ↵Florian Tobias Schandinat
fbdev-next
2011-10-15Merge commit 'v3.1-rc9' into fbdev-nextFlorian Tobias Schandinat
2011-10-08ARM: pxa: use correct __iomem annotationsArnd Bergmann
This tries to clear up the confusion between integers and iomem pointers in the marvell pxa platform. MMIO addresses are supposed to be __iomem* values, in order to let the Linux type checking work correctly. This patch moves the cast to __iomem as far back as possible, to the place where the MMIO virtual address windows are defined. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2011-10-08ARM: pxa: make pxafb_smart_*() empty when not enabledEric Miao
Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>