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2016-08-05sh: use common clock framework with device tree boardsRich Felker1-0/+4
Enable common clk framework for DT-based boards and disable code that depends on the legacy sh clk framework when common clk is enabled. Once legacy drivers are converted over, the old code can be removed entirely. Signed-off-by: Rich Felker <dalias@libc.org>
2016-08-05sh: add SMP support for J2Rich Felker2-0/+143
Support is hooked up via a cpu start method specified in the device tree, and also depends on DT nodes that describe the interfaces for performing IPI and identifying which cpu execution is taking place on. The currently used method is a form of spin table, where secondary cpus are unblocked by writing to a special address. Signed-off-by: Rich Felker <dalias@libc.org>
2016-08-05sh: SMP support for SH2 entry.SRich Felker1-0/+50
The SH2 version of entry.S uses global variables, which need to be cpu-local in order to work with SMP. For ease of access from asm, simply use arrays indexed by cpu number, and require the availability of an address (mmio register or properly setup per-cpu memory) from which the current cpu's index can be read. Signed-off-by: Rich Felker <dalias@libc.org>
2016-08-05sh: add AT_HWCAP flag for J-Core cas.l instructionRich Felker1-0/+2
The J-Core cpu has, as an ISA extension, an atomic compare-and-swap instruction cas.l which applications need to use (instead the imask or gusa atomic models, which are fundamentally limited to UP) for synchronization in order to be compatible with SMP systems. Provide a hwcap flag so that it's possible to do runtime selection and support both. Signed-off-by: Rich Felker <dalias@libc.org>
2016-08-05sh: add support for J-Core J2 processorRich Felker4-2/+43
At the CPU/ISA level, the J2 is compatible with SH-2, and thus the changes to add J2 support build on existing SH-2 support. However, J2 does not duplicate the memory-mapped SH-2 features like the cache interface. Instead, the cache interfaces is described in the device tree, and new code is added to be able to access the flat device tree at early boot before it is unflattened. Support is also added for receiving interrupts on trap numbers in the range 16 to 31, since the J-Core aic1 interrupt controller generates these traps. This range was unused but nominally for hardware exceptions on SH-2, and a few values in this range were used for exceptions on SH-2A, but SH-2A has its own version of the relevant code. No individual cpu subtypes are added for J2 since the intent moving forward is to represent SoCs with device tree rather than as hard-coded subtypes in the kernel. The CPU_SUBTYPE_J2 Kconfig item exists only to fit into the existing cpu selection mechanism until it is overhauled. Signed-off-by: Rich Felker <dalias@libc.org>
2016-07-31sh: disable aliased page logic on NOMMU modelsRich Felker1-0/+4
SH3/4 (with MMU) have a virtually indexed cache, requiring explicit work to avoid consistency problems arising from having the same physical address range cached in multiple cache lines. This is unneeded for the NOMMU case, and some of the resulting code paths (kmap_coherent) don't work. SH2 only avoided this problem by having a 4-way associative cache with way size equal to the page size (4k), yielding no cache index bits outside of the page offset and thus no aliases. Signed-off-by: Rich Felker <dalias@libc.org>
2016-03-29sh: fix smp-shx3 build regression from removal of arch localtimerRich Felker1-2/+0
The removal was not complete and left behind one reference to a removed function in smp-shx3.c. For completeness, also remove declarations for functions that were removed. Fixes: 45624ac38926 "sh: remove arch-specific localtimer and use generic one" Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Rich Felker <dalias@libc.org>
2016-03-17sh: provide unified syscall trap compatible with all SH modelsRich Felker2-8/+8
Historically SH-2 Linux (and originally uClinux) used a syscall calling convention incompatible with the established SH-3/4 Linux ABI. This choice was made because the trap range used by the existing ABI, 0x10-0x17, overlaps with the hardware exception/interrupt trap range reserved by SH-2, and in particular, with the SH-2A divide-by-zero and division-overflow exceptions. Despite the documented syscall convention using the low bits of the trap number to signal the number of arguments the kernel should expect, no version of the kernel has ever used this information, nor is it useful; all of the registers need to be saved anyway. Therefore, it is possible to pick a new trap number, 0x1f, that is both supported by all existing SH-3/4 kernels and unassigned as a hardware trap in the SH-2 range. This makes it possible to produce SH-2 application binaries that are forwards-compatible with running on SH-3/4 kernels and to treat SH as a unified platform with varying ISA support levels rather than multiple gratuitously-incompatible platforms. This patch adjusts the range checking SH-2 and SH-2A kernels make for the syscall trap to accept the range 0x1f-0x2f rather than just 0x20-0x2f. As a result, trap 0x1f now acts as a syscall for all SH models. Signed-off-by: Rich Felker <dalias@libc.org>
2015-12-17sh: sh7734: Correct SCIF type for BRGGeert Uytterhoeven1-6/+6
The SCIF variant in the sh7734 SoC is not the common "SH-4(A)" variant, but a derivative with added "Baud Rate Generator for External Clock" (BRG). Correct the regtype value in platform data to fix this. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2015-12-17sh: Remove sci_ick clock aliasLaurent Pinchart1-1/+0
The sh-sci driver falls back to the peripheral clock if the sci_ick clock doesn't exist. There's thus no need to create an alias for the peripheral clock named sci_ick. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2015-12-17sh: Rename sci_ick and sci_fck clock to fckLaurent Pinchart10-47/+54
The SCI driver requires a functional clock named "fck" and falls back to "sci_ick" or "sci_fck" when the "fck" clock doesn't exist. To allow removal of the fallback code rename the sci_ick and sci_fck clocks to fck for all SH platforms. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2015-11-06arch/sh/kernel/traps_64.c: use sign_extend64() for sign extensionMartin Kepplinger1-1/+1
Signed-off-by: Martin Kepplinger <martin.kepplinger@theobroma-systems.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Ingo Molnar <mingo@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: George Spelvin <linux@horizon.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Maxime Coquelin <maxime.coquelin@st.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Yury Norov <yury.norov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-05Merge tag 'media/v4.3-1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - new DVB frontend drivers: ascot2e, cxd2841er, horus3a, lnbh25 - new HDMI capture driver: tc358743 - new driver for NetUP DVB new boards (netup_unidvb) - IR support for DVBSky cards (smipcie-ir) - Coda driver has gain macroblock tiling support - Renesas R-Car gains JPEG codec driver - new DVB platform driver for STi boards: c8sectpfe - added documentation for the media core kABI to device-drivers DocBook - lots of driver fixups, cleanups and improvements * tag 'media/v4.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (297 commits) [media] c8sectpfe: Remove select on undefined LIBELF_32 [media] i2c: fix platform_no_drv_owner.cocci warnings [media] cx231xx: Use wake_up_interruptible() instead of wake_up_interruptible_nr() [media] tc358743: only queue subdev notifications if devnode is set [media] tc358743: add missing Kconfig dependency/select [media] c8sectpfe: Use %pad to print 'dma_addr_t' [media] DocBook media: Fix typo "the the" in xml files [media] tc358743: make reset gpio optional [media] tc358743: set direction of reset gpio using devm_gpiod_get [media] dvbdev: document most of the functions/data structs [media] dvb_frontend.h: document the struct dvb_frontend [media] dvb-frontend.h: document struct dtv_frontend_properties [media] dvb-frontend.h: document struct dvb_frontend_ops [media] dvb: Use DVBFE_ALGO_HW where applicable [media] dvb_frontend.h: document struct analog_demod_ops [media] dvb_frontend.h: Document struct dvb_tuner_ops [media] Docbook: Document struct analog_parameters [media] dvb_frontend.h: get rid of dvbfe_modcod [media] add documentation for struct dvb_tuner_info [media] dvb_frontend: document dvb_frontend_tune_settings ...
2015-08-05bus: subsys: update return type of ->remove_dev() to voidViresh Kumar1-2/+1
Its return value is not used by the subsys core and nothing meaningful can be done with it, even if we want to use it. The subsys device is anyway getting removed. Update prototype of ->remove_dev() to make its return type as void. Fix all usage sites as well. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-06[media] clock-sh7724.c: fix sh-vou clock identifierHans Verkuil1-1/+1
Bitrot has set in for this driver and the sh-vou clock was never enabled, since the clock name in clock-sh7724.c was wrong. It should be sh-vou, not sh-vou.0. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Thanks-to: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Magnus Damm <damm@opensource.se> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-06SH: use clkdev_add_table()Russell King5-10/+9
We have always had an efficient way of registering a table of clock lookups - it's called clkdev_add_table(). However, some people seem to really love writing inefficient and unnecessary code. Convert SH to use the correct interface. Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-11-12cpuidle: Invert CPUIDLE_FLAG_TIME_VALID logicDaniel Lezcano1-3/+0
The only place where the time is invalid is when the ACPI_CSTATE_FFH entry method is not set. Otherwise for all the drivers, the time can be correctly measured. Instead of duplicating the CPUIDLE_FLAG_TIME_VALID flag in all the drivers for all the states, just invert the logic by replacing it by the flag CPUIDLE_FLAG_TIME_INVALID, hence we can set this flag only for the acpi idle driver, remove the former flag from all the drivers and invert the logic with this flag in the different governor. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-10-29sh: fix sh770x SCIF memory regionsAndriy Skulysh1-3/+3
Resources scif1_resources & scif2_resources overlap. Actual SCIF region size is 0x10. This is regression from commit d850acf975be ("sh: Declare SCIF register base and IRQ as resources") Signed-off-by: Andriy Skulysh <askulysh@gmail.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-11Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds3-68/+68
Pull slave-dma updates from Vinod Koul: "Some notable changes are: - new driver for AMBA AXI NBPF by Guennadi - new driver for sun6i controller by Maxime - pl330 drivers fixes from Lar's - sh-dma updates and fixes from Laurent, Geert and Kuninori - Documentation updates from Geert - drivers fixes and updates spread over dw, edma, freescale, mpc512x etc.." * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (72 commits) dmaengine: sun6i: depends on RESET_CONTROLLER dma: at_hdmac: fix invalid remaining bytes detection dmaengine: nbpfaxi: don't build this driver where it cannot be used dmaengine: nbpf_error_get_channel() can be static dma: pl08x: Use correct specifier for size_t values dmaengine: Remove the context argument to the prep_dma_cyclic operation dmaengine: nbpfaxi: convert to tasklet dmaengine: nbpfaxi: fix a theoretical race dmaengine: add a driver for AMBA AXI NBPF DMAC IP cores dmaengine: add device tree binding documentation for the nbpfaxi driver dmaengine: edma: Do not register second device when booted with DT dmaengine: edma: Do not change the error code returned from edma_alloc_slot dmaengine: rcar-dmac: Add device tree bindings documentation dmaengine: shdma: Allocate cyclic sg list dynamically dmaengine: shdma: Make channel filter ignore unrelated devices dmaengine: sh: Rework Kconfig and Makefile dmaengine: sun6i: Fix memory leaks dmaengine: sun6i: Free the interrupt before killing the tasklet dmaengine: sun6i: Remove switch statement from buswidth convertion routine dmaengine: of: kconfig: select DMA_ENGINE when DMA_OF is selected ...
2014-08-06sh: SH7724 clock fixesDaniel Palmer1-1/+3
Fix the device name for the CMT. Add clocks called usb0 and usb1 so that r8a66597_hcd works again on the ecovec24 board Signed-off-by: Daniel Palmer <danieruru@gmail.com> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Cc: Richard Weinberger <richard@nod.at> Cc: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-07-15sh: dma: Use defines instead of hardcoded numbersGeert Uytterhoeven3-68/+68
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11sh: Switch to new style MTU2 deviceLaurent Pinchart9-433/+72
The MTU2 (Multi-Function Timer Pulse Unit 2) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Tested-by: Wolfram Sang <wsa@sang-engineering.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11sh: Switch to new style TMU deviceLaurent Pinchart30-2486/+239
The TMU (Timer Unit) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-11sh: Switch to new style CMT deviceLaurent Pinchart19-484/+106
The CMT (Compare Match Timer) driver implements a new style of platform data that handles the timer as a single device with multiple channel. Switch from the old-style platform data to the new-style platform data. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-04-03sh: sh7757: switch RSPI clock to dev ID matchGeert Uytterhoeven1-1/+1
Switch the RSPI MSTP clock on SH7757 from a con ID match to a dev ID match, so we can start looking it up using clk_get() with a NULL ID. Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org> Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-03-04sh: prefix sh-specific "CCR" and "CCR2" by "SH_"Geert Uytterhoeven1-2/+2
Commit bcf24e1daa94 ("mmc: omap_hsmmc: use the generic config for omap2plus devices"), enabled the build for other platforms for compile testing. sh-allmodconfig now fails with: include/linux/omap-dma.h:171:8: error: expected identifier before numeric constant make[4]: *** [drivers/mmc/host/omap_hsmmc.o] Error 1 This happens because SuperH #defines "CCR", which is one of the enum values in include/linux/omap-dma.h. There's a similar issue with "CCR2" on sh2a. As "CCR" and "CCR2" are too generic names for global #defines, prefix them with "SH_" to fix this. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-12-24sh: Don't set plat_sci_port scbrr_algo_id fieldLaurent Pinchart28-108/+0
The field will be removed from the sh-sci driver. Don't set it and let the driver handle baud rate calculation internally. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-24sh: sh772[34]: Set serial port sampling rate to 8 for SCIFA portsLaurent Pinchart2-6/+6
SCIFA ports on sh7723 and sh7724 seem to use a sampling rate of half the value specified in the datasheet. This is currently handled by a custom baud rate calculation algorithm. The algorithm ID will be removed from platform data, set the sampling rate directly instead. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-24sh: Declare SCIF register base and IRQ as resourcesLaurent Pinchart28-261/+883
Passing the register base address and IRQ through platform data is deprecated. Use resources instead. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-11-13sh: move fpu_counter into ARCH specific thread_structVineet Gupta1-1/+1
Only a couple of arches (sh/x86) use fpu_counter in task_struct so it can be moved out into ARCH specific thread_struct, reducing the size of task_struct for other arches. Compile tested sh defconfig + sh4-linux-gcc (4.6.3) Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Paul Mundt <paul.mundt@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds1-2/+9
Pull networking changes from David Miller: "Noteworthy changes this time around: 1) Multicast rejoin support for team driver, from Jiri Pirko. 2) Centralize and simplify TCP RTT measurement handling in order to reduce the impact of bad RTO seeding from SYN/ACKs. Also, when both timestamps and local RTT measurements are available prefer the later because there are broken middleware devices which scramble the timestamp. From Yuchung Cheng. 3) Add TCP_NOTSENT_LOWAT socket option to limit the amount of kernel memory consumed to queue up unsend user data. From Eric Dumazet. 4) Add a "physical port ID" abstraction for network devices, from Jiri Pirko. 5) Add a "suppress" operation to influence fib_rules lookups, from Stefan Tomanek. 6) Add a networking development FAQ, from Paul Gortmaker. 7) Extend the information provided by tcp_probe and add ipv6 support, from Daniel Borkmann. 8) Use RCU locking more extensively in openvswitch data paths, from Pravin B Shelar. 9) Add SCTP support to openvswitch, from Joe Stringer. 10) Add EF10 chip support to SFC driver, from Ben Hutchings. 11) Add new SYNPROXY netfilter target, from Patrick McHardy. 12) Compute a rate approximation for sending in TCP sockets, and use this to more intelligently coalesce TSO frames. Furthermore, add a new packet scheduler which takes advantage of this estimate when available. From Eric Dumazet. 13) Allow AF_PACKET fanouts with random selection, from Daniel Borkmann. 14) Add ipv6 support to vxlan driver, from Cong Wang" Resolved conflicts as per discussion. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1218 commits) openvswitch: Fix alignment of struct sw_flow_key. netfilter: Fix build errors with xt_socket.c tcp: Add missing braces to do_tcp_setsockopt caif: Add missing braces to multiline if in cfctrl_linkup_request bnx2x: Add missing braces in bnx2x:bnx2x_link_initialize vxlan: Fix kernel panic on device delete. net: mvneta: implement ->ndo_do_ioctl() to support PHY ioctls net: mvneta: properly disable HW PHY polling and ensure adjust_link() works icplus: Use netif_running to determine device state ethernet/arc/arc_emac: Fix huge delays in large file copies tuntap: orphan frags before trying to set tx timestamp tuntap: purge socket error queue on detach qlcnic: use standard NAPI weights ipv6:introduce function to find route for redirect bnx2x: VF RSS support - VF side bnx2x: VF RSS support - PF side vxlan: Notify drivers for listening UDP port changes net: usbnet: update addr_assign_type if appropriate driver/net: enic: update enic maintainers and driver driver/net: enic: Exposing symbols for Cisco's low latency driver ...
2013-08-22SH7619: fix typo in Ether platform dataSergei Shtylyov1-1/+1
Commit 06a64f91da72cb5827e2bedef2ead60a123fd66e (SH7619: fix Ether support) has a typo in the 'phy_interface' field name of the platform data which causes build error -- fix it. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-20sh_eth: remove 'register_type' field from 'struct sh_eth_plat_data'Sergei Shtylyov1-1/+0
Now that the 'register_type' field of the 'sh_eth' driver's platform data is not used by the driver anymore, it's time to remove it and its initializers from the SH platform code. Also move *enum* declaring values for this field from <linux/sh_eth.h> to the local driver's header file as they're only needed by the driver itself now... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-20SH7619: fix Ether supportSergei Shtylyov1-2/+10
The 'sh_eth' driver's probe will crash as the platform code is hopelessly behind the platform data -- it passes PHY ID instead of 'struct sh_eth_plat_data *'. Strangely, both commit d88a3ea6fa4c (SH7619 add ethernet controler support) that added the platform code and commit 71557a37adb5 ([netdrvr] sh_eth: Add SH7619 support) were done in about the same time, yet the latter one added 'struct sh_eth_plat_data' and the platform code didn't ever get updated... Add the proper platform data and fix off-by-one memory resource end error, while at it... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-12SH: cpuidle: Add missing parameter for cpuidle_register()Geert Uytterhoeven1-3/+1
arch/sh/kernel/cpu/shmobile/cpuidle.c: In function 'sh_mobile_setup_cpuidle': arch/sh/kernel/cpu/shmobile/cpuidle.c:102:2: error: too few arguments to function 'cpuidle_register' include/linux/cpuidle.h:129:12: note: declared here arch/sh/kernel/cpu/shmobile/cpuidle.c:94:6: warning: unused variable 'ret' [-Wunused-variable] Add the missing parameter, and remove the unused variable. Both introduced by commit b181a3b03f866776211f22390c185c4da1dc45ff ("SH: cpuidle: use init/exit common routine"). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2013-07-14sh: delete __cpuinit usage from all sh filesPaul Gortmaker7-17/+17
The __cpuinit type of throwaway sections might have made sense some time ago when RAM was more constrained, but now the savings do not offset the cost and complications. For example, the fix in commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time") is a good example of the nasty type of bugs that can be created with improper use of the various __init prefixes. After a discussion on LKML[1] it was decided that cpuinit should go the way of devinit and be phased out. Once all the users are gone, we can then finally remove the macros themselves from linux/init.h. Note that some harmless section mismatch warnings may result, since notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c) are flagged as __cpuinit -- so if we remove the __cpuinit from arch specific callers, we will also get section mismatch warnings. As an intermediate step, we intend to turn the linux/init.h cpuinit content into no-ops as early as possible, since that will get rid of these warnings. In any case, they are temporary and harmless. This removes all the arch/sh uses of the __cpuinit macros from all C files. Currently sh does not have any __CPUINIT used in assembly files. [1] https://lkml.org/lkml/2013/5/20/589 Cc: Paul Mundt <lethal@linux-sh.org> Cc: linux-sh@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2013-06-07sh_eth: get SH7724 support out of #ifdefSergei Shtylyov1-1/+1
Get the SH7724 code/data in the driver out of #ifdef by adding "r8a7724-ether" to the platform driver's ID table. Change the Ether platform device's name in the SH platform code accordingly. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-07sh_eth: get SH77{34|63} support out of #ifdefSergei Shtylyov1-1/+1
Get the SH77{34|63} specific code/data in the driver out of #ifdef by adding "sh7734-gether" and "sh7763-gether" to the platform driver's ID table. Note that we have to split the 'struct sh_eth_cpu_data' instance into two due to #ifdef inside it; note that we can kill the duplicate sh_eth_set_rate_gether(). Change the GEther platform device's name in the SH platform code accordingly. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-07sh_eth: get SH7619 support out of #ifdefSergei Shtylyov1-2/+2
Get the SH7619 data in the driver out of #ifdef by adding "sh7619-ether" to the platform driver's ID table. Change the Ether platform device's name in the SH platform code accordingly. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-09Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds3-3/+3
Pull removal of GENERIC_GPIO from Grant Likely: "GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it is possible to do so which has been causing confusion and breakage. This branch does the work to completely eliminate GENERIC_GPIO." * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux: gpio: update gpio Chinese documentation Remove GENERIC_GPIO config option Convert selectors of GENERIC_GPIO to GPIOLIB blackfin: force use of gpiolib m68k: coldfire: use gpiolib mips: pnx833x: remove requirement for GENERIC_GPIO openrisc: default GENERIC_GPIO to false avr32: default GENERIC_GPIO to false xtensa: remove explicit selection of GENERIC_GPIO sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB powerpc: remove redundant GENERIC_GPIO selection unicore32: default GENERIC_GPIO to false unicore32: remove unneeded select GENERIC_GPIO arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB arm: remove redundant GENERIC_GPIO selection mips: alchemy: require gpiolib mips: txx9: change GENERIC_GPIO to GPIOLIB mips: loongson: use GPIO driver on CONFIG_GPIOLIB mips: remove redundant GENERIC_GPIO select
2013-05-07Merge tag 'soc-for-linus-2' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates (part 2) from Arnd Bergmann: "These patches are all for Renesas shmobile, and depend on the earlier pinctrl updates. Remarkably, this adds support for three new SoCs: r8a73a4, r8a73a4 and r8a7778. The bulk of the code added for these is for pinctrl (using the new subsystem) and for clocks (not yet using the common clock subsystem). The latter will have to get converted in one of the upcoming releases, but shmobile is not ready for that yet. The series also contains Renesas shmobile board changes, adding one board file for each of the three new SoCs. These boards are using a mix of classic and device-tree based probing, as there is still a lot of infrastructure in shmobile that has not been converted to DT yet. Once those are resolved to the degree that no board specific setup code is needed, they can get folded into the respective SoC setup files." * tag 'soc-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (78 commits) ARM: shmobile: use r8a7790 timer setup code on Lager ARM: shmobile: force enable of r8a7790 arch timer ARM: shmobile: Add second I/O range for r8a7790 PFC ARM: shmobile: bockw: enable network settings on bootargs ARM: shmobile: bockw: add SMSC ethernet support ARM: shmobile: R8A7778: add Ether support ARM: shmobile: bockw: enable SMSC ethernet on defconfig ARM: shmobile: r8a7778: add r8a7778_init_irq_extpin() ARM: shmobile: r8a7778: remove pointless PLATFORM_INFO() ARM: shmobile: mackerel: clean up MMCIF vs. SDHI1 selection ARM: shmobile: mackerel: add interrupt names for SDHI0 ARM: shmobile: mackerel: switch SDHI and MMCIF interfaces to slot-gpio ARM: shmobile: mackerel: remove OCR masks, where regulators are used ARM: shmobile: mackerel: SDHI resources do not have to be numbered ARM: shmobile: Initial r8a7790 Lager board support ARM: shmobile: APE6EVM LAN9220 support ARM: shmobile: APE6EVM PFC support ARM: shmobile: APE6EVM base support ARM: shmobile: kzm9g-reference: add ethernet support ARM: shmobile: add R-Car M1A Bock-W platform support ...
2013-05-04Merge tag 'renesas-pinctrl-for-linus' of ↵Linus Torvalds11-18/+132
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC pinctrl changes for Renesas from Olof Johansson: "This is yet another driver change, which is split out just because of its size. As already in 3.9, a lot of changes are going on here, as the shmobile platform gets converted from its own pin control API to the generic drivers/pinctrl subsystem. Based on agreements with Paul Mundt, we are merging the sh-arch-side changes here as well" * tag 'renesas-pinctrl-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (142 commits) ARM: shmobile: r8a7779: Remove INTC function GPIOs ARM: shmobile: r8a7779: Remove LBSC function GPIOs ARM: shmobile: r8a7779: Remove USB function GPIOs ARM: shmobile: r8a7779: Remove HSPI function GPIOs ARM: shmobile: r8a7779: Remove SCIF function GPIOs ARM: shmobile: r8a7779: Remove SDHI and MMCIF function GPIOs ARM: shmobile: r8a7779: Remove DU function GPIOs ARM: shmobile: r8a7779: Remove DU1_DOTCLKOUT1 GPIO ARM: shmobile: r8a7740: Remove SDHI and MMCIF function GPIOs ARM: shmobile: r8a7740: Remove LCD0 and LCD1 function GPIOs ARM: shmobile: sh73a0: Remove IrDA function GPIOs ARM: shmobile: sh73a0: Remove USB function GPIOs ARM: shmobile: sh73a0: Remove BSC function GPIOs ARM: shmobile: sh73a0: Remove KEYSC function GPIOs ARM: shmobile: sh73a0: Remove pull-up function GPIOS ARM: shmobile: sh73a0: Remove FSI function GPIOs ARM: shmobile: sh73a0: Remove I2C function GPIOs ARM: shmobile: sh73a0: Remove SCIFA and SCIFB function GPIOs ARM: shmobile: sh73a0: Remove LCDC and LCDC2 function GPIOs ARM: shmobile: sh7372: Remove SDHI and MMCIF function GPIOs ...
2013-04-24SH: cpuidle: use init/exit common routineDaniel Lezcano1-6/+1
Remove the duplicated code and use the cpuidle common code for initialization. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-23cpuidle: remove en_core_tk_irqen flagDaniel Lezcano1-1/+0
The en_core_tk_irqen flag is set in all the cpuidle driver which means it is not necessary to specify this flag. Remove the flag and the code related to it. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Kevin Hilman <khilman@linaro.org> # for mach-omap2/* Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-22SH: cpuidle: check error code at initDaniel Lezcano2-5/+9
Registering the driver, or the device, can fail, let's check the return code and return the error code to the PM layer. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-22SH: cpuidle: initialize the driver's states directlyDaniel Lezcano1-50/+42
Like all the other drivers, let's initialize the structure a compile time instead of init time. The states #1 and #2 are not enabled by default. The init function will check the features of the board in order to enable the state. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-22SH: cpuidle: remove CPUIDLE_DRIVER_STATE_START usageDaniel Lezcano1-4/+2
The CPUIDLE_DRIVER_STATE_START constant is only set when the kernel compilation option CONFIG_ARCH_HAS_CPU_RELAX is set, but this is only relatated to x86, so it is always zero. Remove the reference to this constant in the code. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-22SH: cpuidle: remove pointless initializationDaniel Lezcano1-6/+0
The driver is a global static variable automatically initialized to zero. Removing the useless initialization in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-04-02sh: sh7269: Fix compilation by adding missing includesLaurent Pinchart1-0/+2
struct resource is defined in linux/ioport.h. Include it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-03-20sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIBAlexandre Courbot3-3/+3
SH GPIO drivers all use gpiolib and CONFIG_GENERIC_GPIO is only selected through CONFIG_GPIOLIB, yet some compilation units depended on CONFIG_GENERIC_GPIO. Make them depend on CONFIG_GPIOLIB instead since it is more accurate and prepares us for the future removal of CONFIG_GENERIC_GPIO. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org>