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* Merge tag 'fbdev-main-3.16' of ↵Linus Torvalds2014-06-04
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into next Pull main fbdev changes from Tomi Valkeinen: "Mainly fixes and small improvements. The biggest change seems to be backlight control support for mx3fb" * tag 'fbdev-main-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (31 commits) drivers/video/fbdev/fb-puv3.c: Add header files for function unifb_mmap video: fbdev: s3fb.c: Fix for possible null pointer dereference video: fbdev: grvga.c: Fix for possible null pointer dereference matroxfb: perform a dummy read of M_STATUS video: of: display_timing: fix default native-mode setting video: delete unneeded call to platform_get_drvdata video: mx3fb: Add backlight control support video: omap: delete support for early fbmem allocation video: of: display_timing: remove two unsafe error messages fbdev: fbmem: remove positive test on unsigned values fbcon: Fix memory leak in con2fb_release_oldinfo() video: Kconfig: Add a dependency to the Goldfish framebuffer driver video: exynos: Add a dependency to the menu video: mx3fb: Use devm_kzalloc video/nuc900: allow modular build video: atmel needs FB_BACKLIGHT video: export fb_prepare_logo video/mbx: fix building debugfs support video/omap: fix modular build video: clarify I2C dependencies ...
| * drivers/video/fbdev/fb-puv3.c: Add header files for function unifb_mmapZhichuang SUN2014-05-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Function unifb_mmap calls functions which are defined in linux/mm.h and asm/pgtable.h The related error (for unicore32 with unicore32_defconfig): CC drivers/video/fbdev/fb-puv3.o drivers/video/fbdev/fb-puv3.c: In function 'unifb_mmap': drivers/video/fbdev/fb-puv3.c:646: error: implicit declaration of function 'vm_iomap_memory' drivers/video/fbdev/fb-puv3.c:646: error: implicit declaration of function 'pgprot_noncached' Signed-off-by: Zhichuang Sun <sunzc522@gmail.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Jingoo Han <jg1.han@samsung.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Joe Perches <joe@perches.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: linux-fbdev@vger.kernel.org Acked-by: Xuetao Guan <gxt@mprc.pku.edu.cn> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: fbdev: s3fb.c: Fix for possible null pointer dereferenceRickard Strandqvist2014-05-23
| | | | | | | | | | | | | | | | | | There is otherwise a risk of a possible null pointer dereference. Was largely found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: fbdev: grvga.c: Fix for possible null pointer dereferenceRickard Strandqvist2014-05-23
| | | | | | | | | | | | | | | | | | There is otherwise a risk of a possible null pointer dereference. Was largely found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * matroxfb: perform a dummy read of M_STATUSMikulas Patocka2014-05-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I had occasional screen corruption with the matrox framebuffer driver and I found out that the reason for the corruption is that the hardware blitter accesses the videoram while it is being written to. The matrox driver has a macro WaitTillIdle() that should wait until the blitter is idle, but it sometimes doesn't work. I added a dummy read mga_inl(M_STATUS) to WaitTillIdle() to fix the problem. The dummy read will flush the write buffer in the PCI chipset, and the next read of M_STATUS will return the hardware status. Since applying this patch, I had no screen corruption at all. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: of: display_timing: fix default native-mode settingBoris BREZILLON2014-05-23
| | | | | | | | | | | | | | | | Set native mode to the first child node of the display-timings node and not the first child node of the display-timings parent node. Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: delete unneeded call to platform_get_drvdataJulia Lawall2014-05-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Platform_get_drvdata is an accessor function, and has no purpose if its result is not used. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier x; type T; @@ - T x = platform_get_drvdata(...); ... when != x // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: mx3fb: Add backlight control supportAlexander Stein2014-05-16
| | | | | | | | | | | | | | | | | | This patch add backlight control support to allow dimming the backlight using the internal PWM. Currently the brightness is set fixed to a maximum of 255. Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: omap: delete support for early fbmem allocationAaro Koskinen2014-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 1e434f9318efc3dddc0c0b8d2071712668154c2b (OMAPFB: remove early mem alloc from old omapfb) deleted the support for early fbmem allocation from the platform code, but some code still remains in the driver side. Delete this code now, as it repotedly causes build issues on !MMU. The patch was tested on Amstrad E3 and Nokia 770 and framebuffer functionality is not affected. Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: of: display_timing: remove two unsafe error messagesLucas Stach2014-05-15
| | | | | | | | | | | | | | | | | | | | The error message would try to dereference the pointer that just has been tested to be NULL. As those messages don't really add any value without the info that the np could provide, just remove them. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * fbdev: fbmem: remove positive test on unsigned valuesFabian Frederick2014-05-09
| | | | | | | | | | | | | | | | | | | | fb_image.dx, fb_image.dy and fbconf2bmap.framebuffer are __u32 Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * fbcon: Fix memory leak in con2fb_release_oldinfo()Masami Ichikawa2014-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kmemleak reported a memory leak as below. unreferenced object 0xffff8800dab6d8d8 (size 96): comm "swapper/0", pid 1, jiffies 4294877598 (age 38.483s) hex dump (first 32 bytes): 00 00 00 00 00 01 00 00 08 00 00 00 10 00 00 00 ................ 07 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff814e8f2e>] kmemleak_alloc+0x4e/0xb0 [<ffffffff811a0600>] __kmalloc+0x280/0x320 [<ffffffff81309b61>] soft_cursor+0x231/0x290 [<ffffffff81309393>] bit_cursor+0x613/0x650 [<ffffffff8130556b>] fbcon_cursor+0x13b/0x1c0 [<ffffffff813755f8>] hide_cursor+0x28/0xa0 [<ffffffff81376e98>] redraw_screen+0x168/0x240 [<ffffffff81303891>] fbcon_prepare_logo+0x381/0x420 [<ffffffff81303c7e>] fbcon_init+0x34e/0x590 [<ffffffff81375828>] visual_init+0xb8/0x120 [<ffffffff81377c93>] do_bind_con_driver+0x163/0x380 [<ffffffff81378494>] do_take_over_console+0x114/0x1c0 [<ffffffff81303f23>] do_fbcon_takeover+0x63/0xd0 [<ffffffff813086dd>] fbcon_event_notify+0x68d/0x7e0 [<ffffffff814ff7ac>] notifier_call_chain+0x4c/0x70 [<ffffffff8108c85d>] __blocking_notifier_call_chain+0x4d/0x70 This memory leak cause is, fbcon_ops's cursor_src is allocated in soft_cursor() but not released in con2fb_release_oldinfo(). so, cursor_src is needed to be released when oldinfo is going to be released. Signed-off-by: Masami Ichikawa <masami256@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: Kconfig: Add a dependency to the Goldfish framebuffer driverJean Delvare2014-05-09
| | | | | | | | | | | | | | | | | | | | All other Goldfish drivers depend on GOLDFISH, I see no reason why the framebuffer driver would be an exception. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: exynos: Add a dependency to the menuJean Delvare2014-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All drivers under menu EXYNOS_VIDEO depend on either ARCH_S5PV210 or ARCH_EXYNOS, so add these as dependencies to the menu itself. This avoids presenting an empty and useless menu on other architectures. Then drivers under the menu only need a dependency if they depend on one of the supported architectures specifically. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: mx3fb: Use devm_kzallocDenis Carikli2014-05-09
| | | | | | | | | | | | | | Replace kzalloc by devm_kzalloc and remove the kfree() calls. Signed-off-by: Denis Carikli <denis@eukrea.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video/nuc900: allow modular buildArnd Bergmann2014-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The frame buffer core may be a loadable module, and in this case, the nuc900 driver cannot be built-in. Turning it into a tristate option lets Kconfig work out the dependency and avoid broken builds. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: linux-fbdev@vger.kernel.org Cc: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: atmel needs FB_BACKLIGHTArnd Bergmann2014-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | The atmel frame buffer driver doesn't build if FB_BACKLIGHT is disabled, so select it here as we do for lots of other drivers. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: linux-fbdev@vger.kernel.org Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: export fb_prepare_logoArnd Bergmann2014-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | Some drivers that may be loadable modules use the fb_prepare_logo function, so we have to export it. Found during randconfig builds with mmpfb. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: linux-fbdev@vger.kernel.org Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video/mbx: fix building debugfs supportArnd Bergmann2014-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mbx framebuffer debugfs support apparently hasn't been able to build for a long time, at least since 2006 when the u.generic_ip field in the inode was removed. This fixes the obvious bug, and also makes it possible to build the driver as a module when debugfs support is enabled, by simply including the C file. It's ugly, but it won't make the driver any worse than it already is, and doesn't require a more invasive change that might break it further. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: linux-fbdev@vger.kernel.org Cc: Raphael Assenat <raph@8d.com> Cc: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video/omap: fix modular buildArnd Bergmann2014-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The framebuffer layer can be a loadable module, which forces omapfb to be a module as well. However, this breaks the lcd drivers, which are linked into the omapfb driver but each have their own module_init() function. To solve this, we split out the lcd drivers into separate modules and export omapfb_register_panel, which is the only interface required between the main omapfb driver and the lcd panel drivers. We also have to introduce a new Kconfig symbol for H3, since that lcd driver has a dependency on TPS65010, which we can express better in Kconfig than Makefile syntax. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: linux-fbdev@vger.kernel.org Cc: linux-omap@vger.kernel.org Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: clarify I2C dependenciesArnd Bergmann2014-05-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We can only use I2C support in frame buffer drivers if Either I2C is built-in, or both I2C and the driver itself are loadable modules. Fix this dependency for MB862XX and CyberPro frame buffers. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: linux-fbdev@vger.kernel.org Cc: Russell King <linux@arm.linux.org.uk> Cc: Anatolij Gustschin <agust@denx.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: sh_mobile_lcdcfb depends on meramArnd Bergmann2014-05-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The sh_mobile_lcdcfb driver calls interfaces provided by the corresponding "meram" helper. This fails if meram is a module but lcdcfb is built-in. To work around it, this uses special Kconfig magic to only allow lcdcfb to be built if a) both are modules, b) meram is built-in, or c) meram is disabled and the helpers stubbed out Changing meram from 'y' to 'm' now forces clcd to be a module as well, which seems to be the desired behavior. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Cc: Simon Horman <horms+renesas@verge.net.au> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: linux-sh@vger.kernel.org Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: linux-fbdev@vger.kernel.org Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * fbdev: Fix tmiofb driver dependenciesJean Delvare2014-04-30
| | | | | | | | | | | | | | | | | | | | | | The tmiofb driver should not depend on MFD_CORE but on MFD_TMIO. Without the tmio_core driver, tmiofb has no platform device to bind to and is thus useless. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: pxa3xx-gcu: use devm_ioremap_resource()Jingoo Han2014-04-30
| | | | | | | | | | | | | | | | | | | | Use devm_ioremap_resource() because devm_request_and_ioremap() is obsoleted by devm_ioremap_resource(). Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Daniel Mack <zonque@gmail.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: mmpfb: cleanup some static checker warnings in probe()Dan Carpenter2014-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Sparse complains about using zero instead of NULL for pointers. Probably, if we enabled the warning, then GCC would complain about the unused initializers. I've just removed them. Smatch complains that we first check if "fbi" is NULL and then dereference it in the error handling. It turns out that "fbi" can't be NULL so I've removed the check. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: mmp: Remove references to CPU_PXA988Richard Weinberger2014-04-30
| | | | | | | | | | | | | | | | | | | | | | References to the Kconfig symbol CPU_PXA988 were added to the tree in v3.9. But that Kconfig symbol has never been part of the tree. So get rid of these references. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: mmp: Remove references to CPU_MMP3Richard Weinberger2014-04-30
| | | | | | | | | | | | | | | | | | | | | | References to the Kconfig symbol CPU_MMP3 were added to the tree since v3.6. But that Kconfig symbol has never been part of the tree. So get rid of these references. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: fbdev: Fix format string mismatch in gbefb.cMasanari Iida2014-04-30
| | | | | | | | | | | | | | Fix format string mismatch in gbefb_show_memsize(). Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: fbdev: Fix format string mismatch in wm8505fb.cMasanari Iida2014-04-30
| | | | | | | | | | | | | | Fix format string mismatch in contrast_show(). Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: Check EDID for HDMI connectionDavid Ung2014-04-22
| | | | | | | | | | | | | | | | | | Check EDID Vendor Specific Data Block bytes to see if the connection is HDMI and set FB_MISC_HDMI. Signed-off-by: David Ung <davidu@nvidia.com> Signed-off-by: Christopher Freeman <cfreeman@nvidia.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: da8xx-fb: Add support for Densitron 84-0023-001TJon Ringle2014-04-22
| | | | | | | | | | Signed-off-by: Jon Ringle <jringle@gridpoint.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* | Merge tag 'pm+acpi-3.16-rc1' of ↵Linus Torvalds2014-06-04
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm into next Pull ACPI and power management updates from Rafael Wysocki: "ACPICA is the leader this time (63 commits), followed by cpufreq (28 commits), devfreq (15 commits), system suspend/hibernation (12 commits), ACPI video and ACPI device enumeration (10 commits each). We have no major new features this time, but there are a few significant changes of how things work. The most visible one will probably be that we are now going to create platform devices rather than PNP devices by default for ACPI device objects with _HID. That was long overdue and will be really necessary to be able to use the same drivers for the same hardware blocks on ACPI and DT-based systems going forward. We're not expecting fallout from this one (as usual), but it's something to watch nevertheless. The second change having a chance to be visible is that ACPI video will now default to using native backlight rather than the ACPI backlight interface which should generally help systems with broken Win8 BIOSes. We're hoping that all problems with the native backlight handling that we had previously have been addressed and we are in a good enough shape to flip the default, but this change should be easy enough to revert if need be. In addition to that, the system suspend core has a new mechanism to allow runtime-suspended devices to stay suspended throughout system suspend/resume transitions if some extra conditions are met (generally, they are related to coordination within device hierarchy). However, enabling this feature requires cooperation from the bus type layer and for now it has only been implemented for the ACPI PM domain (used by ACPI-enumerated platform devices mostly today). Also, the acpidump utility that was previously shipped as a separate tool will now be provided by the upstream ACPICA along with the rest of ACPICA code, which will allow it to be more up to date and better supported, and we have one new cpuidle driver (ARM clps711x). The rest is improvements related to certain specific use cases, cleanups and fixes all over the place. Specifics: - ACPICA update to upstream version 20140424. That includes a number of fixes and improvements related to things like GPE handling, table loading, headers, memory mapping and unmapping, DSDT/SSDT overriding, and the Unload() operator. The acpidump utility from upstream ACPICA is included too. From Bob Moore, Lv Zheng, David Box, David Binderman, and Colin Ian King. - Fixes and cleanups related to ACPI video and backlight interfaces from Hans de Goede. That includes blacklist entries for some new machines and using native backlight by default. - ACPI device enumeration changes to create platform devices rather than PNP devices for ACPI device objects with _HID by default. PNP devices will still be created for the ACPI device object with device IDs corresponding to real PNP devices, so that change should not break things left and right, and we're expecting to see more and more ACPI-enumerated platform devices in the future. From Zhang Rui and Rafael J Wysocki. - Updates for the ACPI LPSS (Low-Power Subsystem) driver allowing it to handle system suspend/resume on Asus T100 correctly. From Heikki Krogerus and Rafael J Wysocki. - PM core update introducing a mechanism to allow runtime-suspended devices to stay suspended over system suspend/resume transitions if certain additional conditions related to coordination within device hierarchy are met. Related PM documentation update and ACPI PM domain support for the new feature. From Rafael J Wysocki. - Fixes and improvements related to the "freeze" sleep state. They affect several places including cpuidle, PM core, ACPI core, and the ACPI battery driver. From Rafael J Wysocki and Zhang Rui. - Miscellaneous fixes and updates of the ACPI core from Aaron Lu, Bjørn Mork, Hanjun Guo, Lan Tianyu, and Rafael J Wysocki. - Fixes and cleanups for the ACPI processor and ACPI PAD (Processor Aggregator Device) drivers from Baoquan He, Manuel Schölling, Tony Camuso, and Toshi Kani. - System suspend/resume optimization in the ACPI battery driver from Lan Tianyu. - OPP (Operating Performance Points) subsystem updates from Chander Kashyap, Mark Brown, and Nishanth Menon. - cpufreq core fixes, updates and cleanups from Srivatsa S Bhat, Stratos Karafotis, and Viresh Kumar. - Updates, fixes and cleanups for the Tegra, powernow-k8, imx6q, s5pv210, nforce2, and powernv cpufreq drivers from Brian Norris, Jingoo Han, Paul Bolle, Philipp Zabel, Stratos Karafotis, and Viresh Kumar. - intel_pstate driver fixes and cleanups from Dirk Brandewie, Doug Smythies, and Stratos Karafotis. - Enabling the big.LITTLE cpufreq driver on arm64 from Mark Brown. - Fix for the cpuidle menu governor from Chander Kashyap. - New ARM clps711x cpuidle driver from Alexander Shiyan. - Hibernate core fixes and cleanups from Chen Gang, Dan Carpenter, Fabian Frederick, Pali Rohár, and Sebastian Capella. - Intel RAPL (Running Average Power Limit) driver updates from Jacob Pan. - PNP subsystem updates from Bjorn Helgaas and Fabian Frederick. - devfreq core updates from Chanwoo Choi and Paul Bolle. - devfreq updates for exynos4 and exynos5 from Chanwoo Choi and Bartlomiej Zolnierkiewicz. - turbostat tool fix from Jean Delvare. - cpupower tool updates from Prarit Bhargava, Ramkumar Ramachandra and Thomas Renninger. - New ACPI ec_access.c tool for poking at the EC in a safe way from Thomas Renninger" * tag 'pm+acpi-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (187 commits) ACPICA: Namespace: Remove _PRP method support. intel_pstate: Improve initial busy calculation intel_pstate: add sample time scaling intel_pstate: Correct rounding in busy calculation intel_pstate: Remove C0 tracking PM / hibernate: fixed typo in comment ACPI: Fix x86 regression related to early mapping size limitation ACPICA: Tables: Add mechanism to control early table checksum verification. ACPI / scan: use platform bus type by default for _HID enumeration ACPI / scan: always register ACPI LPSS scan handler ACPI / scan: always register memory hotplug scan handler ACPI / scan: always register container scan handler ACPI / scan: Change the meaning of missing .attach() in scan handlers ACPI / scan: introduce platform_id device PNP type flag ACPI / scan: drop unsupported serial IDs from PNP ACPI scan handler ID list ACPI / scan: drop IDs that do not comply with the ACPI PNP ID rule ACPI / PNP: use device ID list for PNPACPI device enumeration ACPI / scan: .match() callback for ACPI scan handlers ACPI / battery: wakeup the system only when necessary power_supply: allow power supply devices registered w/o wakeup source ...
| * | backlight: Add backlight device (un)registration notificationHans de Goede2014-05-26
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some firmware drivers, ie acpi-video want to get themselves out of the way (in some cases) when their also is a raw backlight device available. Due to module loading ordering being unknown, acpi-video cannot be certain that the backlight_device_registered(BACKLIGHT_RAW) it does for this is the final verdict wrt there being a BACKLIGHT_RAW device. By adding notification acpi-video can listen for backlight devices showing up after it has loaded, and unregister its backlight device if desired. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | Merge tag 'tty-3.16-rc1' of ↵Linus Torvalds2014-06-03
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty into next Pull tty/serial driver updates from Greg KH: "Here is the big tty / serial driver pull request for 3.16-rc1. A variety of different serial driver fixes and updates and additions, nothing huge, and no real major core tty changes at all. All have been in linux-next for a while" * tag 'tty-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (84 commits) Revert "serial: imx: remove the DMA wait queue" serial: kgdb_nmi: Improve console integration with KDB I/O serial: kgdb_nmi: Switch from tasklets to real timers serial: kgdb_nmi: Use container_of() to locate private data serial: cpm_uart: No LF conversion in put_poll_char() serial: sirf: Fix compilation failure console: Remove superfluous readonly check console: Use explicit pointer type for vc_uni_pagedir* fields vgacon: Fix & cleanup refcounting ARM: tty: Move HVC DCC assembly to arch/arm tty/hvc/hvc_console: Fix wakeup of HVC thread on hvc_kick() drivers/tty/n_hdlc.c: replace kmalloc/memset by kzalloc vt: emulate 8- and 24-bit colour codes. printk/of_serial: fix serial console cessation part way through boot. serial: 8250_dma: check the result of TX buffer mapping serial: uart: add hw flow control support configuration tty/serial: at91: add interrupts for modem control lines tty/serial: at91: use mctrl_gpio helpers tty/serial: Add GPIOLIB helpers for controlling modem lines ARM: at91: gpio: implement get_direction ...
| * | console: Use explicit pointer type for vc_uni_pagedir* fieldsTakashi Iwai2014-05-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The vc_data.vc_uni_pagedir filed is currently long int, supposedly to be served generically. This, however, leads to lots of cast to pointer, and rather it worsens the readability significantly. Actually, we have now only a single uni_pagedir map implementation, and this won't change likely. So, it'd be much more simple and error-prone to just use the exact pointer for struct uni_pagedir instead of long. Ditto for vc_uni_pagedir_loc. It's a pointer to the uni_pagedir, thus it can be changed similarly to the exact type. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | vgacon: Fix & cleanup refcountingTakashi Iwai2014-05-28
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The vgacon driver prepares a two element array of uni_pagedir_loc and uses the second item as its own reference counter for sharing the uni_pagedir. And the code assumes blindly that the second item is available if the assigned vc_uni_pagedir isn't the standard one, which might be wrong (although currently it's so). This patch fixes that wrong assumption, and gives a slight cleanup along with it: namely, instead of array, just give the uni_pagedir_loc and a separate refcount variable. It makes the code a bit more understandable at first glance. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* / m68k/atari - atafb: convert allocation of fb ram to new interfaceMichael Schmitz2014-05-26
|/ | | | | | | | | | | | | | | | The new atari_stram_alloc interface returns kernel virtual addresses even if the kernel runs in FastRAM. These addresses are not guaranteed to be identical with the physical addresses. Since ST-RAM mappings have not been set up by mem_init, virt_to_phys() and its cousin do not work and the atari_stram_to_phys() etc. helpers must be used to determine physical addresses. fb.fix->smem_start needs physical addresses, fb.par->screen_base needs virtual addresses. Take care of the virt-to-phys conversion both on fb init and par changes. Signed-off-by: Michael Schmitz <schmitz@debian.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* video: Kconfig: move drm and fb into separate menusTomi Valkeinen2014-04-17
| | | | | | | | | | | | | | | | | | | | | | | | | | At the moment the "Device Drivers / Graphics support" kernel config page looks rather messy, with DRM and fbdev driver selections on the same page, some on the top level Graphics support page, some under their respective subsystems. If I'm not mistaken, this is caused by the drivers depending on other things than DRM or FB, which causes Kconfig to arrange the options in not-so-neat manner. Both DRM and FB have a main menuconfig option for the whole DRM or FB subsystem. Optimally, this would be enough to arrange all DRM and FB options under the respective subsystem, but for whatever reason this doesn't work reliably. This patch adds an explicit submenu for DRM and FB, making it much clearer which options are related to FB, and which to DRM. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* fbdev: move fbdev core files to separate directoryTomi Valkeinen2014-04-17
| | | | | | | | | | | | | | | Instead of having fbdev framework core files at the root fbdev directory, mixed with random fbdev device drivers, move the fbdev core files to a separate core directory. This makes it much clearer which of the files are actually part of the fbdev framework, and which are part of device drivers. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* video: move fbdev to drivers/video/fbdevTomi Valkeinen2014-04-17
| | | | | | | | | | | | | | | | | | | | The drivers/video directory is a mess. It contains generic video related files, directories for backlight, console, linux logo, lots of fbdev device drivers, fbdev framework files. Make some order into the chaos by creating drivers/video/fbdev directory, and move all fbdev related files there. No functionality is changed, although I guess it is possible that some subtle Makefile build order related issue could be created by this patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* video: bf54x-lq043fb: fix build errorSteven Miao2014-04-15
| | | | | | | | Fix build error by including linux/gpio.h. Also drop asm/gpio.h which is not needed. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAPDSS: Change struct reg_field to dispc_reg_fieldJyri Sarha2014-04-14
| | | | | | | | | Avoid colision with regmap's struct reg_field definition by renaming omapdss's struct reg_field to dispc_reg_field, and moving it inside dispc.c as that's the only place it is used. Signed-off-by: Jyri Sarha <jsarha@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAPDSS: Take pixelclock unit change into account in hdmi_compute_acr()Jyri Sarha2014-04-14
| | | | | | | | Pixelclock unit change from kHz to Hz should be taken into account in CTS value calculations in hdmi_compute_acr(). Signed-off-by: Jyri Sarha <jsarha@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAPDSS: fix shared irq handlersTomi Valkeinen2014-04-14
| | | | | | | | | | | | | | | | | | | | | | DSS uses shared irq handlers for DISPC and DSI, because on OMAP3, the DISPC and DSI share the same irq line. However, the irq handlers presume that the hardware is enabled, which, in theory, may not be the case with shared irq handlers. So if an interrupt happens while the DISPC/DSI is off, the kernel will halt as the irq handler tries to access the DISPC/DSI registers. In practice that should never happen, as both DSI and DISPC are in the same power domain. So if there's an IRQ for one of them, the other is also enabled. However, if CONFIG_DEBUG_SHIRQ is enabled, the kernel will generate a spurious IRQ, which then causes the problem. This patch adds an is_enabled field for both DISPC and DSI, which is used to track if the HW is enabled. For DISPC the code is slightly more complex, as the users of DISPC can register the interrupt handler, and we want to hide the is_enabled handling from the users of DISPC. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* video: imxfb: Select LCD_CLASS_DEVICE unconditionallyAlexander Shiyan2014-04-14
| | | | | | | | | | FB driver uses lowlevel controls for LCD powering and contrast changing. Since LCD class cannot be used as an optional feature and should be compiled for using in the driver, this patch selects LCD_CLASS_DEVICE symbol for the driver. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* OMAPDSS: fix rounding when calculating fclk rateTomi Valkeinen2014-04-14
| | | | | | | | | | | | | "clk: divider: fix rate calculation for fractional rates" patch (and similar for TI specific divider) fixes the clk-divider's rounding. This patch updates the DSS driver to round the rates accordingly. This fixes the DSS's warnings about clock rate mismatch, and also fixes the wrong fclk rate being set. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Tested-by: Christoph Fritz <chf.fritz@googlemail.com> Tested-by: Marek Belisko <marek@goldelico.com>
* video: da8xx-fb: Fix casting of info->pseudo_paletteJon Ringle2014-04-14
| | | | | | | | The casting to (u16 *) on info->pseudo_palette is wrong and causes the display to show a blue (garbage) vertical line on every other pixel column Signed-off-by: Jon Ringle <jringle@gridpoint.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* Merge tag 'backlight-for-linus-3.15' of ↵Linus Torvalds2014-04-10
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight Pull backlight changes from Lee Jones: - core: call put_device() instead of kfree() - gpio-backlight: add DT support - lm3639_bl driver: use managed resources * tag 'backlight-for-linus-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: backlight: lm3639: Use devm_backlight_device_register() backlight: gpio-backlight: Add DT support backlight: core: Replace kfree with put_device
| * backlight: lm3639: Use devm_backlight_device_register()Daniel Jeong2014-04-08
| | | | | | | | | | | | | | | | Change to use devm_backlight_device_register() for simple cleanup. Signed-off-by: Daniel Jeong <gshark.jeong@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
| * backlight: gpio-backlight: Add DT supportDenis Carikli2014-04-08
| | | | | | | | | | | | Signed-off-by: Denis Carikli <denis@eukrea.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-15 05:20:24 -0400