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* Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds2015-09-016-278/+230
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnar: "The main RCU changes in this cycle are: - the combination of tree geometry-initialization simplifications and OS-jitter-reduction changes to expedited grace periods. These two are stacked due to the large number of conflicts that would otherwise result. - privatize smp_mb__after_unlock_lock(). This commit moves the definition of smp_mb__after_unlock_lock() to kernel/rcu/tree.h, in recognition of the fact that RCU is the only thing using this, that nothing else is likely to use it, and that it is likely to go away completely. - documentation updates. - torture-test updates. - misc fixes" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (60 commits) rcu,locking: Privatize smp_mb__after_unlock_lock() rcu: Silence lockdep false positive for expedited grace periods rcu: Don't disable CPU hotplug during OOM notifiers scripts: Make checkpatch.pl warn on expedited RCU grace periods rcu: Update MAINTAINERS entry rcu: Clarify CONFIG_RCU_EQS_DEBUG help text rcu: Fix backwards RCU_LOCKDEP_WARN() in synchronize_rcu_tasks() rcu: Rename rcu_lockdep_assert() to RCU_LOCKDEP_WARN() rcu: Make rcu_is_watching() really notrace cpu: Wait for RCU grace periods concurrently rcu: Create a synchronize_rcu_mult() rcu: Fix obsolete priority-boosting comment rcu: Use WRITE_ONCE in RCU_INIT_POINTER rcu: Hide RCU_NOCB_CPU behind RCU_EXPERT rcu: Add RCU-sched flavors of get-state and cond-sync rcu: Add fastpath bypassing funnel locking rcu: Rename RCU_GP_DONE_FQS to RCU_GP_DOING_FQS rcu: Pull out wait_event*() condition into helper function documentation: Describe new expedited stall warnings rcu: Add stall warnings to synchronize_sched_expedited() ...
| * Merge branch 'for-mingo' of ↵Ingo Molnar2015-08-251-67/+4
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull RCU cleanup from Paul E. McKenney: "Privatize smp_mb__after_unlock_lock(). This commit moves the definition of smp_mb__after_unlock_lock() to kernel/rcu/tree.h, in recognition of the fact that RCU is the only thing using this, that nothing else is likely to use it, and that it is likely to go away completely." Signed-off-by: Ingo Molnar <mingo@kernel.org>
| | * rcu,locking: Privatize smp_mb__after_unlock_lock()Paul E. McKenney2015-08-041-67/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RCU is the only thing that uses smp_mb__after_unlock_lock(), and is likely the only thing that ever will use it, so this commit makes this macro private to RCU. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>
| * | Merge branch 'for-mingo' of ↵Ingo Molnar2015-08-126-224/+239
| |\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull RCU changes from Paul E. McKenney: - The combination of tree geometry-initialization simplifications and OS-jitter-reduction changes to expedited grace periods. These two are stacked due to the large number of conflicts that would otherwise result. [ With one addition, a temporary commit to silence a lockdep false positive. Additional changes to the expedited grace-period primitives (queued for 4.4) remove the cause of this false positive, and therefore include a revert of this temporary commit. ] - Documentation updates. - Torture-test updates. - Miscellaneous fixes. Signed-off-by: Ingo Molnar <mingo@kernel.org>
| | *-. Merge branches 'doc.2015.07.15a' and 'torture.2015.07.15a' into HEADPaul E. McKenney2015-08-043-187/+209
| | |\ \ | | | | | | | | | | | | | | | | | | | | doc.2015.07.15a: Documentation updates. torture.2015.07.15a: Torture-test updates.
| | | * | doc: Call out smp_mb__after_unlock_lock() transitivityPaul E. McKenney2015-07-151-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Although "full barrier" should be interpreted as providing transitivity, it is worth eliminating any possible confusion. This commit therefore adds "(including transitivity)" to eliminate any possible confusion. Reported-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| | | * | documentation: Replace ACCESS_ONCE() by READ_ONCE() and WRITE_ONCE()Paul E. McKenney2015-07-151-169/+177
| | | | | | | | | | | | | | | | | | | | | | | | | Reported-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| | | * | documentation: Fix variable-name typo in memory-barriers.txtPaul E. McKenney2015-07-151-1/+1
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| | | * | documentation: Fix spelling of "operators"Paul E. McKenney2015-07-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Reported-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| | | * | documentation: Bring rcutorture parameters up to datePaul E. McKenney2015-07-151-11/+24
| | | |/ | | | | | | | | | | | | | | | | | | | | | | | | This commit changes the documentation of the rcutorture parameters to better match reality. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| | * | Merge branches 'fixes.2015.07.22a' and 'initexp.2015.08.04a' into HEADPaul E. McKenney2015-08-042-36/+29
| | |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | fixes.2015.07.22a: Miscellaneous fixes. initexp.2015.08.04a: Initialization and expedited updates. (Single branch due to conflicts.)
| | | * | rcu: Add fastpath bypassing funnel lockingPaul E. McKenney2015-07-171-26/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the common case, there will be only one expedited grace period in the system at a given time, in which case it is not helpful to use funnel locking. This commit therefore adds a fastpath that bypasses funnel locking when the root ->exp_funnel_mutex is not held. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| | | * | documentation: Describe new expedited stall warningsPaul E. McKenney2015-07-171-0/+17
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| | | * | rcu: Remove CONFIG_RCU_CPU_STALL_INFOPaul E. McKenney2015-07-171-10/+2
| | | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CONFIG_RCU_CPU_STALL_INFO has been default-y for a couple of releases with no complaints, so it is time to eliminate this Kconfig option entirely, so that the long-form RCU CPU stall warnings cannot be disabled. This commit does just that. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| | * / rcu: Rename rcu_lockdep_assert() to RCU_LOCKDEP_WARN()Paul E. McKenney2015-07-231-1/+1
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit renames rcu_lockdep_assert() to RCU_LOCKDEP_WARN() for consistency with the WARN() series of macros. This also requires inverting the sense of the conditional, which this commit also does. Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Ingo Molnar <mingo@kernel.org>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds2015-09-013-4/+44
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull crypto updates from Herbert Xu: "Here is the crypto update for 4.3: API: - the AEAD interface transition is now complete. - add top-level skcipher interface. Drivers: - x86-64 acceleration for chacha20/poly1305. - add sunxi-ss Allwinner Security System crypto accelerator. - add RSA algorithm to qat driver. - add SRIOV support to qat driver. - add LS1021A support to caam. - add i.MX6 support to caam" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (163 commits) crypto: algif_aead - fix for multiple operations on AF_ALG sockets crypto: qat - enable legacy VFs MPI: Fix mpi_read_buffer crypto: qat - silence a static checker warning crypto: vmx - Fixing opcode issue crypto: caam - Use the preferred style for memory allocations crypto: caam - Propagate the real error code in caam_probe crypto: caam - Fix the error handling in caam_probe crypto: caam - fix writing to JQCR_MS when using service interface crypto: hash - Add AHASH_REQUEST_ON_STACK crypto: testmgr - Use new skcipher interface crypto: skcipher - Add top-level skcipher interface crypto: cmac - allow usage in FIPS mode crypto: sahara - Use dmam_alloc_coherent crypto: caam - Add support for LS1021A crypto: qat - Don't move data inside output buffer crypto: vmx - Fixing GHASH Key issue on little endian crypto: vmx - Fixing AES-CTR counter bug crypto: null - Add missing Kconfig tristate for NULL2 crypto: nx - Add forward declaration for struct crypto_aead ...
| * | | crypto: sunxi-ss - Document optional reset control bindingsChen-Yu Tsai2015-08-131-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Later Allwinner SoCs split out the reset controls for individual modules out of the clock gate controls. The "Security System" crypto engine is no different. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: doc - make URL into hyperlinkBrian Norris2015-08-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The HTML output works a little nicer that way. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: caam - Added clocks and clock-names properties to SEC4.0 device tree ↵Victoria Milhoan2015-08-101-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | binding The clocks and clock-names properties describe input clocks that may be required for enablement of CAAM. Signed-off-by: Victoria Milhoan <vicki.milhoan@freescale.com> Tested-by: Horia Geantă <horia.geanta@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | crypto: doc - AEAD API conversionStephan Mueller2015-08-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The AEAD API changes are now reflected in the crypto API doc book. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| * | | ARM: sun4i: dt: Add DT bindings documentation for SUN4I Security SystemLABBE Corentin2015-07-201-0/+19
| | |/ | |/| | | | | | | | | | | | | | | | | | | This patch adds documentation for Device-Tree bindings for the Security System cryptographic accelerator driver. Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* | | Merge tag 'clk-for-linus-4.3' of ↵Linus Torvalds2015-09-018-7/+307
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Michael Turquette: "The clk framework changes for 4.3 are mostly updates to existing drivers and the addition of new clock drivers. Stephen Boyd has also done a lot of subsystem-wide driver clean-ups (thanks!). There are also fixes to the framework core and changes to better split clock provider drivers from clock consumer drivers" * tag 'clk-for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (227 commits) clk: s5pv210: add missing call to samsung_clk_of_add_provider() clk: pistachio: correct critical clock list clk: pistachio: Fix PLL rate calculation in integer mode clk: pistachio: Fix override of clk-pll settings from boot loader clk: pistachio: Fix 32bit integer overflows clk: tegra: Fix some static checker problems clk: qcom: Fix MSM8916 prng clock enable bit clk: Add missing header for 'bool' definition to clk-conf.h drivers/clk: appropriate __init annotation for const data clk: rockchip: register pll mux before pll itself clk: add bindings for the Ux500 clocks clk/ARM: move Ux500 PRCC bases to the device tree clk: remove duplicated code with __clk_set_parent_after clk: Convert __clk_get_name(hw->clk) to clk_hw_get_name(hw) clk: Constify clk_hw argument to provider APIs clk: Hi6220: add stub clock driver dt-bindings: clk: Hi6220: Document stub clock driver dt-bindings: arm: Hi6220: add doc for SRAM controller clk: atlas7: fix pll missed divide NR in fraction mode clk: atlas7: fix bit field and its root clk for coresight_tpiu ...
| * \ \ Merge tag 'tegra-for-4.3-clk' of ↵Stephen Boyd2015-08-261-0/+79
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into clk-next clk: tegra: Changes for v4.3-rc1 This contains the DFLL driver needed to implement CPU frequency scaling on Tegra.
| | * | | clk: tegra: Add binding for the Tegra124 DFLL clocksourceTuomas Tynkkynen2015-07-161-0/+79
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The DFLL is the main clocksource for the fast CPU cluster on Tegra124 and also provides automatic CPU rail voltage scaling as well. The DFLL is a separate IP block from the usual Tegra124 clock-and-reset controller, so it gets its own node in the device tree. Signed-off-by: Tuomas Tynkkynen <ttynkkynen@nvidia.com> Signed-off-by: Mikko Perttunen <mikko.perttunen@kapsi.fi> Acked-by: Michael Turquette <mturquette@linaro.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
| * | | clk: add bindings for the Ux500 clocksLinus Walleij2015-08-251-0/+64
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These Ux500 clocks have been around for years and were never properly documented. Add the proper binding documentation. Cc: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Michael Turquette <mturquette@baylibre.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
| * | | dt-bindings: clk: Hi6220: Document stub clock driverLeo Yan2015-08-251-1/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Document the new compatible for stub clock driver which is used for CPU and DDR's dynamic frequency scaling. Signed-off-by: Leo Yan <leo.yan@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
| * | | dt-bindings: arm: Hi6220: add doc for SRAM controllerLeo Yan2015-08-251-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Document "hisilicon,hi6220-sramctrl" for SRAM controller. Signed-off-by: Leo Yan <leo.yan@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
| * | | clk: versatile: Switch to assigned clock parentsStephen Boyd2015-08-251-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We're removing struct clk from the clk provider API. This code is calling the consumer APIs to change the parent to a 1 MHz fixed rate clock for each of the clocks that the driver provides. Move to using the assigned-clock-parents DT property for this instead. Because this is an ABI break, detect if the property is missing and fall back to setting the parent explicitly before the clocks are registered. Acked-by: Pawel Moll <pawel.moll@arm.com> Cc: Linus Walleij <linus.walleij@linaro.org> Tested-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
| * | | clk: versatile: Add SP810 device tree bindings documentPawel Moll2015-08-251-0/+35
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
| * | | Merge branch 'clk-determine-rate-struct' into clk-nextStephen Boyd2015-07-281-6/+2
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | * clk-determine-rate-struct: clk: fix some determine_rate implementations clk: change clk_ops' ->determine_rate() prototype
| | * | | clk: change clk_ops' ->determine_rate() prototypeBoris Brezillon2015-07-281-6/+2
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clock rates are stored in an unsigned long field, but ->determine_rate() (which returns a rounded rate from a requested one) returns a long value (errors are reported using negative error codes), which can lead to long overflow if the clock rate exceed 2Ghz. Change ->determine_rate() prototype to return 0 or an error code, and pass a pointer to a clk_rate_request structure containing the expected target rate and the rate constraints imposed by clk users. The clk_rate_request structure might be extended in the future to contain other kind of constraints like the rounding policy, the maximum clock inaccuracy or other things that are not yet supported by the CCF (power consumption constraints ?). Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> CC: Jonathan Corbet <corbet@lwn.net> CC: Tony Lindgren <tony@atomide.com> CC: Ralf Baechle <ralf@linux-mips.org> CC: "Emilio López" <emilio@elopez.com.ar> CC: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Tero Kristo <t-kristo@ti.com> CC: Peter De Schrijver <pdeschrijver@nvidia.com> CC: Prashant Gaikwad <pgaikwad@nvidia.com> CC: Stephen Warren <swarren@wwwdotorg.org> CC: Thierry Reding <thierry.reding@gmail.com> CC: Alexandre Courbot <gnurou@gmail.com> CC: linux-doc@vger.kernel.org CC: linux-kernel@vger.kernel.org CC: linux-arm-kernel@lists.infradead.org CC: linux-omap@vger.kernel.org CC: linux-mips@linux-mips.org CC: linux-tegra@vger.kernel.org [sboyd@codeaurora.org: Fix parent dereference problem in __clk_determine_rate()] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Tested-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> [sboyd@codeaurora.org: Folded in fix from Heiko for fixed-rate clocks without parents or a rate determining op] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
| * | | Merge branch 'clk-rk3368' into clk-nextStephen Boyd2015-07-081-0/+61
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * clk-rk3368: clk: rockchip: add rk3368 clock controller clk: rockchip: add missing include guards clk: rockchip: add dt-binding header for rk3368 dt-bindings: add documentation of rk3668 clock controller clk: rockchip: define the inverters of rk3066/rk3188 and rk3288 clk: rockchip: fix issues in the mmc-phase clock clk: rockchip: add support for phase inverters clk: rockchip: add COMPOSITE_NOGATE_DIVTBL variant clk: rockchip: protect register macros against multipart values clk: rockchip: fix faulty vip parent name on rk3288 clk: rockchip: rk3288: add CLK_SET_RATE_PARENT to sclk_mac
| | * | | dt-bindings: add documentation of rk3668 clock controllerHeiko Stuebner2015-07-071-0/+61
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the devicetree binding for the cru on the rk3368 which quite similar structured as previous clock controllers. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: devicetree@vger.kernel.org Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
| * / / clk: add gpio controlled clock multiplexerSergej Sawazki2015-07-071-0/+19
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a common clock driver for basic gpio controlled clock multiplexers. This driver can be used for devices like 5V41068A or 831721I from IDT or for discrete multiplexer circuits. The 'select' pin selects one of two parent clocks. Cc: Jyri Sarha <jsarha@ti.com> Signed-off-by: Sergej Sawazki <ce3a@gmx.de> [sboyd@codeaurora.org: Fix error paths to free memory and do it in the correct order] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
* | | Merge tag 'pci-v4.3-changes' of ↵Linus Torvalds2015-09-011-0/+3
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "PCI changes for the v4.3 merge window: Enumeration: - Allocate ATS struct during enumeration (Bjorn Helgaas) - Embed ATS info directly into struct pci_dev (Bjorn Helgaas) - Reduce size of ATS structure elements (Bjorn Helgaas) - Stop caching ATS Invalidate Queue Depth (Bjorn Helgaas) - iommu/vt-d: Cache PCI ATS state and Invalidate Queue Depth (Bjorn Helgaas) - Move MPS configuration check to pci_configure_device() (Bjorn Helgaas) - Set MPS to match upstream bridge (Keith Busch) - ARM/PCI: Set MPS before pci_bus_add_devices() (Murali Karicheri) - Add pci_scan_root_bus_msi() (Lorenzo Pieralisi) - ARM/PCI, designware, xilinx: Use pci_scan_root_bus_msi() (Lorenzo Pieralisi) Resource management: - Call pci_read_bridge_bases() from core instead of arch code (Lorenzo Pieralisi) PCI device hotplug: - pciehp: Remove unused interrupt events (Bjorn Helgaas) - pciehp: Remove ignored MRL sensor interrupt events (Bjorn Helgaas) - pciehp: Handle invalid data when reading from non-existent devices (Jarod Wilson) - pciehp: Simplify pcie_poll_cmd() (Yijing Wang) - Use "slot" and "pci_slot" for struct hotplug_slot and struct pci_slot (Yijing Wang) - Protect pci_bus->slots with pci_slot_mutex, not pci_bus_sem (Yijing Wang) - Hold pci_slot_mutex while searching bus->slots list (Yijing Wang) Power management: - Disable async suspend/resume for JMicron multi-function SATA/AHCI (Zhang Rui) Virtualization: - Add ACS quirks for Intel I219-LM/V (Alex Williamson) - Restore ACS configuration as part of pci_restore_state() (Alexander Duyck) MSI: - Add pcibios_alloc_irq() and pcibios_free_irq() (Jiang Liu) - x86: Implement pcibios_alloc_irq() and pcibios_free_irq() (Jiang Liu) - Add helpers to manage pci_dev->irq and pci_dev->irq_managed (Jiang Liu) - Free legacy IRQ when enabling MSI/MSI-X (Jiang Liu) - ARM/PCI: Remove msi_controller from struct pci_sys_data (Lorenzo Pieralisi) - Remove unused pcibios_msi_controller() hook (Lorenzo Pieralisi) Generic host bridge driver: - Remove dependency on ARM-specific struct hw_pci (Jayachandran C) - Build setup-irq.o for arm64 (Jayachandran C) - Add arm64 support (Jayachandran C) APM X-Gene host bridge driver: - Add APM X-Gene PCIe 64-bit prefetchable window (Duc Dang) - Add support for a 64-bit prefetchable memory window (Duc Dang) - Drop owner assignment from platform_driver (Krzysztof Kozlowski) Broadcom iProc host bridge driver: - Allow BCMA bus driver to be built as module (Hauke Mehrtens) - Delete unnecessary checks before phy calls (Markus Elfring) - Add arm64 support (Ray Jui) Synopsys DesignWare host bridge driver: - Don't complain missing *config* reg space if va_cfg0 is set (Murali Karicheri) TI DRA7xx host bridge driver: - Disable pm_runtime on get_sync failure (Kishon Vijay Abraham I) - Add PM support (Kishon Vijay Abraham I) - Clear MSE bit during suspend so clocks will idle (Kishon Vijay Abraham I) - Add support to make GPIO drive PERST# line (Kishon Vijay Abraham I) Xilinx AXI host bridge driver: - Check for MSI interrupt flag before handling as INTx (Russell Joyce) Miscellaneous: - Fix Intersil/Techwell TW686[4589] AV capture class code (Krzysztof Hałasa) - Use PCI_CLASS_SERIAL_USB instead of bare number (Bjorn Helgaas) - Fix generic NCR 53c810 class code quirk (Bjorn Helgaas) - Fix TI816X class code quirk (Bjorn Helgaas) - Remove unused "pci_probe" flags (Bjorn Helgaas) - Host bridge driver code simplifications (Fabio Estevam) - Add dev_flags bit to access VPD through function 0 (Mark Rustad) - Add VPD function 0 quirk for Intel Ethernet devices (Mark Rustad) - Kill off set_irq_flags() usage (Rob Herring) - Remove Intel Cherrytrail D3 delays (Srinidhi Kasagar) - Clean up pci_find_capability() (Wei Yang)" * tag 'pci-v4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (72 commits) PCI: Disable async suspend/resume for JMicron multi-function SATA/AHCI PCI: Set MPS to match upstream bridge PCI: Move MPS configuration check to pci_configure_device() PCI: Drop references acquired by of_parse_phandle() PCI/MSI: Remove unused pcibios_msi_controller() hook ARM/PCI: Remove msi_controller from struct pci_sys_data ARM/PCI, designware, xilinx: Use pci_scan_root_bus_msi() PCI: Add pci_scan_root_bus_msi() ARM/PCI: Replace panic with WARN messages on failures PCI: generic: Add arm64 support PCI: Build setup-irq.o for arm64 PCI: generic: Remove dependency on ARM-specific struct hw_pci PCI: imx6: Simplify a trivial if-return sequence PCI: spear: Use BUG_ON() instead of condition followed by BUG() PCI: dra7xx: Remove unneeded use of IS_ERR_VALUE() PCI: Remove pci_ats_enabled() PCI: Stop caching ATS Invalidate Queue Depth PCI: Move ATS declarations to linux/pci.h so they're all together PCI: Clean up ATS error handling PCI: Use pci_physfn() rather than looking up physfn by hand ...
| * | | PCI: dra7xx: Add support to make GPIO drive PERST# lineKishon Vijay Abraham I2015-08-111-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PERST# line in am57x-evm is connected to a GPIO line and PERST# should be driven high to indicate the clocks are stable (As per Figure 2-10: Power Up of the PCIe CEM spec 3.0). Add support to make GPIO drive PERST# line. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
* | | | Merge tag 'leds_for_4.3' of ↵Linus Torvalds2015-09-012-9/+27
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds Pull LED updates from Jacek Anaszewski: "In this merge window we'd like to announce a change on the list of LED subsystem maintainers - Bryan Wu decided to step back and handed over the maintainership to me (Jacek Anaszewski), which entailed an update of LED subsystem git tree URL. Besides the changes in MAINTAINERS we have: - optimizations and improvements to existing LED class drivers - improvements to the common LEDs DT documentation - modifications of kirkwood-* dts files, to be in sync with patches for leds-ns2 driver, that move LEDs mode mapping outside of the driver" * tag 'leds_for_4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: leds: Export OF module alias information in missing drivers leds:lp55xx: use the private data instead of updating I2C device platform data leds: syscon: Correct check for syscon_node_to_regmap() errors leds: leds-fsg: Use devm_led_classdev_register MAINTAINERS: Change LED subsystem git tree URL leds/led-class: Add missing put_device() ARM: Kirkwood: add modes-map property to ns2-leds nodes leds: tlc591xx: Remove redundant I2C_FUNC_SMBUS_BYTE_DATA functionality check leds: leds-ns2: depends on MACH_ARMADA_370 leds: leds-ns2: handle can_sleep GPIOs leds: leds-ns2: move LED modes mapping outside of the driver leds: lp8860: Constify reg_default tables leds: Drop owner assignment from i2c_driver leds: Allow compile test of LEDS_AAT1290 and LEDS_KTD2692 if !GPIOLIB leds: Allow compile test of GPIO consumers if !GPIOLIB DT: leds: Improve description of flash LEDs related properties
| * | | | leds: leds-ns2: move LED modes mapping outside of the driverVincent Donnefort2015-08-281-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On the board n090401 (Seagate NAS 4-Bay), the LED mode mapping (GPIO values to LED mode) is different from the one used on other boards supported by the leds-ns2 driver. With this patch the hardcoded mapping is removed from leds-ns2. Now, it must be defined either in the platform data (if an old-fashion board setup file is used) or in the DT node. In order to allow the later, this patch also introduces a modes-map property for the leds-ns2 DT binding. Signed-off-by: Vincent Donnefort <vdonnefort@gmail.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
| * | | | DT: leds: Improve description of flash LEDs related propertiesJacek Anaszewski2015-08-281-9/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. Since max-microamp property has had no users so far, then rename it to more descriptive led-max-microamp. 2. Since flash-timeout-us property has had no users so far, then rename it to more accurate flash-max-timeout-us. 3. Describe led-max-microamp property as mandatory for specific board configurations. 4. Make flash-max-microamp and flash-max-timeout-us properties mandatory for devices with configurable flash current and flash timeout settings respectively. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Pavel Machek <pavel@ucw.cz> Cc: devicetree@vger.kernel.org Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
* | | | | Merge tag 'spi-v4.3' of ↵Linus Torvalds2015-09-016-6/+113
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi updates from Mark Brown: "A few core tweaks this time together with the usual collection of driver specific updates and fixes plus a larger than average selection of new device support: - fix DMA mapping of unaligned vmalloc() buffers - statistics tracking transfer volumes exposed via sysfs - new drivers for Freescale MPC5125, Intel Sunrise Point, Mediatek SoCs, and Netlogic XLP SoCs" * tag 'spi-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (66 commits) spi: sh-msiof: Fix FIFO size to 64 word from 256 word spi: fsl-(e)spi: Fix checking return value of devm_ioremap_resource spi: Add DT bindings documentation for Netlogic XLP SPI controller spi/xlp: SPI controller driver for Netlogic XLP SoCs spi: fsl-espi: add runtime PM spi: fsl-(e)spi: simplify cleanup code spi: fsl-(e)spi: migrate to using devm_ functions to simplify cleanup spi: mediatek: fix SPI_CMD_PAUSE_IE macro error spi: check bits_per_word in spi_setup spi: mediatek: replace *_time name spi: mediatek: add PM clk_prepare_enable fail flow spi: mediatek: replace int with u32, delete TAB and define MTK_SPI_PAUSE_INT_STATUS marco spi: mediatek: add linux/io.h include file spi/bcm63xx-hsspi: add support for dual spi read/write spi: dw: Allow interface drivers to limit data I/O to word sizes dt: snps,dw-apb-ssi: Document new I/O data register width property spi: Fall back to master maximum speed if no slave speed specified spi: mediatek: use BIT() to instead of SPI_CMD_*_OFFSET spi: medaitek: revise quirks compatibility style spi: mediatek: fix spi incorrect endian usage ...
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| *---. \ \ \ \ Merge remote-tracking branches 'spi/topic/ti-qspi', 'spi/topic/xcomm' and ↵Mark Brown2015-08-311-0/+39
| |\ \ \ \ \ \ \ | | | |_|_|/ / / | | |/| | | / / | | | | |_|/ / | | | |/| | | 'spi/topic/xlp' into spi-next
| | | | * | | spi: Add DT bindings documentation for Netlogic XLP SPI controllerKamlakant Patel2015-08-281-0/+39
| | | |/ / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add DT bindings documentation for SPI controller driver used by Netlogic XLP MIPS64 SoCs. Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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| *---. \ \ \ \ Merge remote-tracking branches 'spi/topic/mtk', 'spi/topic/pxa2xx', ↵Mark Brown2015-08-311-0/+51
| |\ \ \ \ \ \ \ | | | | |_|/ / / | | | |/| | | | | | | | | | | | 'spi/topic/qspi', 'spi/topic/rockchip' and 'spi/topic/s3c24xx' into spi-next
| | * | | | | | spi: Mediatek: Document devicetree bindings for spi busLeilk Liu2015-08-071-0/+51
| | | |_|/ / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Leilk Liu <leilk.liu@mediatek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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| *-----. \ \ \ \ \ Merge remote-tracking branches 'spi/topic/dw', 'spi/topic/fsl-espi', ↵Mark Brown2015-08-313-6/+21
| |\ \ \ \ \ \ \ \ \ | | | | |_|/ / / / / | | | |/| | | | | | | | | | | | | | | | 'spi/topic/img-spfi' and 'spi/topic/mpc512x-psc' into spi-next
| | | | | * | | | | spi: mpc512x-psc: adapt mpc5121-psc document to realityUwe Kleine-König2015-07-171-6/+18
| | | | |/ / / / / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The drivers support MPC5125 additionally to MPC5121, and there is an spi mode that is also supported. Additionally some minor corrections are done. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Mark Brown <broonie@kernel.org>
| | | | * | | | | spi: img-spfi: check for max speed supported by the spfi blockSifan Naeem2015-07-071-0/+1
| | | | |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maximum speed supported by spfi is limited to 1/4 of the spfi clock. But in some SoCs the maximum speed supported by the spfi block can be limited to less than 1/4 of the spfi clock. In such cases we have to define the limit in the device tree so that the driver can pick it up. Signed-off-by: Sifan Naeem <sifan.naeem@imgtec.com> Signed-off-by: Mark Brown <broonie@kernel.org>
| | * | / / / / dt: snps,dw-apb-ssi: Document new I/O data register width propertyMichael van der Westhuizen2015-08-211-0/+2
| | |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change documents a new property for the snps,dw-apb-ssi device, allowing an implementer to specify either four byte or two bytes access to the SPI controller data register. This supports a change that unbreaks this driver on picoXcell platforms. Signed-off-by: Michael van der Westhuizen <michael@smart-africa.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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| *-. \ \ \ \ \ Merge remote-tracking branches 'spi/topic/atmel', 'spi/topic/bcm2835', ↵Mark Brown2015-08-311-0/+2
| |\ \ \ \ \ \ \ | | | |/ / / / / | | |/| | | / / | | |_|_|_|/ / | |/| | | | | 'spi/topic/bcm63xx-hsspi' and 'spi/topic/davinci' into spi-next
| | | * | | | spi: davinci: Choose correct pre-scaler limit based on SOCFranklin S Cooper Jr2015-07-241-0/+2
| | |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the pre-scaler limit is incorrect. The value differs slightly for various devices so a single value can't be used. Using the compatible field select the correct pre-scaler limit. Add new compatible field value for Keystone devices to support their unique pre-scaler limit value. Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com> Reviewed-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>