summaryrefslogtreecommitdiff
path: root/drivers/sh
AgeCommit message (Collapse)AuthorFilesLines
2015-09-21Merge tag 'renesas-sh-drivers-for-v4.3' of ↵Linus Torvalds1-14/+5
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas Pull SH drivers updates from Simon Horman: "I am sending this change after v4.3-rc1 has been released as it depends on SoC changes which are present in that rc release. Summary: - disable PM runtime for multi-platform ARM with genpd - disable legacy default PM Domain on emev2" * tag 'renesas-sh-drivers-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: drivers: sh: Disable PM runtime for multi-platform ARM with genpd drivers: sh: Disable legacy default PM Domain on emev2
2015-09-16sh: Kill off set_irq_flags usageRob Herring1-9/+1
set_irq_flags is ARM specific with custom flags which have genirq equivalents. Convert drivers to use the genirq interfaces directly, so we can kill off set_irq_flags. The translation of flags is as follows: IRQF_VALID -> !IRQ_NOREQUEST IRQF_PROBE -> !IRQ_NOPROBE IRQF_NOAUTOEN -> IRQ_NOAUTOEN For IRQs managed by an irqdomain, the irqdomain core code handles clearing and setting IRQ_NOREQUEST already, so there is no need to do this in .map() functions and we can simply remove the set_irq_flags calls. Some users also modify IRQ_NOPROBE and this has been maintained although it is not clear that is really needed. There appears to be a great deal of blind copy and paste of this code. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Simon Horman <horms@verge.net.au> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-sh@vger.kernel.org Cc: Russell King <linux@arm.linux.org.uk> Cc: Magnus Damm <magnus.damm@gmail.com> Link: http://lkml.kernel.org/r/1440889285-5637-4-git-send-email-robh@kernel.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-09-16genirq: Remove irq argument from irq flow handlersThomas Gleixner2-3/+3
Most interrupt flow handlers do not use the irq argument. Those few which use it can retrieve the irq number from the irq descriptor. Remove the argument. Search and replace was done with coccinelle and some extra helper scripts around it. Thanks to Julia for her help! Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com>
2015-09-14drivers: sh: Disable PM runtime for multi-platform ARM with genpdGeert Uytterhoeven1-13/+5
If the default PM Domain using PM_CLK is used for PM runtime, the real Clock Domain cannot be registered from DT later. Hence do not enable it when running a multi-platform kernel with genpd support on R-Car or RZ. The CPG/MSTP Clock Domain driver will take care of PM runtime management of the module clocks. Now most multi-platform ARM shmobile platforms (SH-Mobile, R-Mobile, R-Car, RZ) use DT-based PM Domains to take care of PM runtime management of the module clocks, simplify the platform logic by replacing the explicit SoC checks by a single check for the presence of MSTP clocks in DT. Backwards-compatiblity with old DTs (mainly for R-Car Gen2) is provided by checking for the presence of a "#power-domain-cells" property in DT. The default PM Domain is still needed for: - backwards-compatibility with old DTs that lack PM Domain properties, - the CONFIG_PM=n case, - legacy (non-DT) ARM/shmobile platforms without genpd support (r8a7778, r8a7779), - legacy SuperH. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-09-14drivers: sh: Disable legacy default PM Domain on emev2Geert Uytterhoeven1-2/+1
EMMA Mobile EV2 doesn't have MSTP clocks. All its device drivers manage clocks explicitly, without relying on Runtime PM, so it doesn't need the legacy default PM Domain. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-07-29sh/intc: Prepare irq flow handlers for irq argument removalThomas Gleixner1-1/+2
The irq argument of most interrupt flow handlers is unused or merily used instead of a local variable. The handlers which need the irq argument can retrieve the irq number from the irq descriptor. Search and update was done with coccinelle and the invaluable help of Julia Lawall. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Link: http://lkml.kernel.org/r/20150713151626.872605327@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-07-29sh/intc: Use irq_desc_get_xxx() to avoid redundant lookup of irq_descJiang Liu2-7/+9
Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we already have a pointer to corresponding irq_desc. Also replace generic_handle_irq with generic_handle_irq_desc() to avoid looking up irq_desc again. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <magnus.damm@gmail.com> Link: http://lkml.kernel.org/r/20150713151626.792845830@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-07-29sh/irq: Use access helper irq_data_get_affinity_mask()Thomas Gleixner1-3/+3
This is a preparatory patch for moving irq_data struct members. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <magnus.damm@gmail.com> Link: http://lkml.kernel.org/r/20150713151626.713278346@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-07-29sh/irq: Use irq accessor functions instead of open coded accessJiang Liu1-5/+7
This is a preparatory patch for refactoring the internals if irq_data. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <magnus.damm@gmail.com> Link: http://lkml.kernel.org/r/20150713151626.616384365@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-07-02Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds2-3/+5
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fixes from Thomas Gleixner: "This contains: - a series of fixes for interrupt drivers to prevent a potential race when installing a chained interrupt handler - a fix for cpumask pointer misuse - a fix for using the wrong interrupt number from struct irq_data - removal of unused code and outdated comments - a few new helper functions which allow us to cleanup the interrupt handling code further in 4.3 I decided against doing the cleanup at the end of this merge window and rather do the preparatory steps for 4.3, so we can run the final ABI change at the end of the 4.3 merge window with less risk" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits) ARM/LPC32xx: Use irq not hwirq for __irq_set_handler_locked() genirq: Implement irq_set_handler_locked()/irq_set_chip_handler_name_locked() genirq: Introduce helper irq_desc_get_irq() genirq: Remove irq_node() genirq: Clean up outdated comments related to include/linux/irqdesc.h mn10300: Fix incorrect use of irq_data->affinity MIPS/ralink: Fix race in installing chained IRQ handler MIPS/pci: Fix race in installing chained IRQ handler MIPS/ath25: Fix race in installing chained IRQ handler MIPS/ath25: Fix race in installing chained IRQ handler m68k/psc: Fix race in installing chained IRQ handler avr32/at32ap: Fix race in installing chained IRQ handler sh/intc: Fix race in installing chained IRQ handler sh/intc: Fix potential race in installing chained IRQ handler pinctrl/sun4i: Fix race in installing chained IRQ handler pinctrl/samsung: Fix race in installing chained IRQ handler pinctrl/samsung: Fix race in installing chained IRQ handler pinctrl/exynos: Fix race in installing chained IRQ handler pinctrl/st: Fix race in installing chained IRQ handler pinctrl/adi2: Fix race in installing chained IRQ handler ...
2015-06-25sh/intc: Fix race in installing chained IRQ handlerThomas Gleixner1-2/+3
Fix a race where a pending interrupt could be received and the handler called before the handler's data has been setup, by converting to irq_set_chained_handler_and_data(). Search and conversion was done with coccinelle: @@ expression E1, E2, E3; @@ ( -if (irq_set_chained_handler(E1, E3) != 0) - BUG(); | -irq_set_chained_handler(E1, E3); ) -irq_set_handler_data(E1, E2); +irq_set_chained_handler_and_data(E1, E3, E2); @@ expression E1, E2, E3; @@ ( -if (irq_set_chained_handler(E1, E3) != 0) - BUG(); ... | -irq_set_chained_handler(E1, E3); ... ) -irq_set_handler_data(E1, E2); +irq_set_chained_handler_and_data(E1, E3, E2); Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: linux-sh@vger.kernel.org
2015-06-25sh/intc: Fix potential race in installing chained IRQ handlerThomas Gleixner1-1/+2
Fix a race where a pending interrupt could be received and the handler called before the handler's data has been setup, by moving the call to irq_set_chained_handler() after the function which sets up the handler data. Found by code inspection. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: linux-sh@vger.kernel.org
2015-05-13drivers: sh: remove boilerplate code and use USE_PM_CLK_RUNTIME_OPSRajendra Nayak1-45/+2
USE_PM_CLK_RUNTIME_OPS is introduced so we don't repeat the same code to do runtime_suspend and runtime_resume across users of PM clocks. Use it to remove the boilerplate code. Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Reviewed-by: Kevin Hilman <khilman@linaro.org> Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-04-27drivers: sh: Remove test for now unsupported sh7372Geert Uytterhoeven1-2/+1
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-04-27drivers: sh: Disable PM runtime for multi-platform r8a73a4 with genpdGeert Uytterhoeven1-1/+1
If the default PM domain using PM_CLK is used for PM runtime, the real PM domain(s) cannot be registered from DT later. Hence do not enable it when running a multi-platform kernel with genpd support on an r8a73a4. The R-Mobile PM domain driver will take care of PM runtime management of the module clocks. The default PM domain is still needed for: - platforms without genpd support, - the legacy (non-DT) case, where genpd may take over later, except for the C5 "always on" PM domain. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-04-27drivers: sh: Disable PM runtime for multi-platform sh73a0 with genpdGeert Uytterhoeven1-2/+2
If the default PM domain using PM_CLK is used for PM runtime, the real PM domain(s) cannot be registered from DT later. Hence do not enable it when running a multi-platform kernel with genpd support on an sh73a0. The R-Mobile PM domain driver will take care of PM runtime management of the module clocks. The default PM domain is still needed for: - platforms without genpd support, - the legacy (non-DT) case, where genpd may take over later, except for the C5 "always on" PM domain. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-02-24drivers: sh: Disable PM runtime for multi-platform r8a7740 with genpdGeert Uytterhoeven1-0/+2
If the default PM domain using PM_CLK is used for PM runtime, the real PM domain(s) cannot be registered from DT later. Hence do not enable it when running a multi-platform kernel with genpd support on an r8a7740. The R-Mobile PM domain driver will take care of PM runtime management of the module clocks. The default PM domain is still needed for: - platforms without genpd support, - the legacy (non-DT) case, where genpd may take over later, except for the C5 "always on" PM domain. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-12-05drivers: sh / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PMRafael J. Wysocki1-2/+2
After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks depending on CONFIG_PM_RUNTIME may now be changed to depend on CONFIG_PM. Replace CONFIG_PM_RUNTIME with CONFIG_PM in drivers/sh/pm_runtime.c. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
2014-09-09drivers: sh: Leave disabling of unused PM domains to genpdUlf Hansson1-11/+0
Since genpd at late init, will try to disable unused PM domains we don't need to do it from here as well. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-08-22sh: intc: Confine SH_INTC to platforms that need itGeert Uytterhoeven2-3/+6
Currently the sh-intc driver is compiled on all SuperH and non-multiplatform SH-Mobile platforms, while it's only used on a limited number of platforms: - SuperH: SH2(A), SH3(A), SH4(A)(L) (all but SH5) - ARM: sh7372, sh73a0 Drop the "default y" on SH_INTC, make all CPU platforms that use it select it, and protect all sub-options by "if SH_INTC" to fix this. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Magnus Damm <damm+renesas@opensource.se> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-06-06Merge tag 'renesas-sh-drivers-for-v3.16' of ↵Linus Torvalds2-7/+35
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next Pull SH driver update from Simon Horman: - PM Runtime enhancements targeted for use with ARM-based Renesas R-Car Gen2 SoCs - Restrict INTC_USERIMASK to SH4A as it is only used there * tag 'renesas-sh-drivers-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: drivers: sh: Enable PM runtime for new R-Car Gen2 SoCs drivers: sh: pm_runtime implementation needs to suspend and resume devices drivers: sh: Restrict INTC_USERIMASK to SH4A drivers: sh: pm_runtime does not need idle callback
2014-06-05drivers: sh: Enable PM runtime for new R-Car Gen2 SoCsGeert Uytterhoeven1-0/+3
The PM runtime code should also be enabled for: - r8a7792 (R-Car V2H) - r8a7793 (R-Car M2-N) - r8a7794 (R-Car E2) Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-06-05Merge branch 'irq-core-for-linus' of ↵Linus Torvalds1-6/+0
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next Pull core irq updates from Thomas Gleixner: "The irq department delivers: - Another tree wide update to get rid of the horrible create_irq interface along with its even more horrible variants. That also gets rid of the last leftovers of the initial sparse irq hackery. arch/driver specific changes have been either acked or ignored. - A fix for the spurious interrupt detection logic with threaded interrupts. - A new ARM SoC interrupt controller - The usual pile of fixes and improvements all over the place" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits) Documentation: brcmstb-l2: Add Broadcom STB Level-2 interrupt controller binding irqchip: brcmstb-l2: Add Broadcom Set Top Box Level-2 interrupt controller genirq: Improve documentation to match current implementation ARM: iop13xx: fix msi support with sparse IRQ genirq: Provide !SMP stub for irq_set_affinity_notifier() irqchip: armada-370-xp: Move the devicetree binding documentation irqchip: gic: Use mask field in GICC_IAR genirq: Remove dynamic_irq mess ia64: Use irq_init_desc genirq: Replace dynamic_irq_init/cleanup genirq: Remove irq_reserve_irq[s] genirq: Replace reserve_irqs in core code s390: Avoid call to irq_reserve_irqs() s390: Remove pointless arch_show_interrupts() s390: pci: Check return value of alloc_irq_desc() proper sh: intc: Remove pointless irq_reserve_irqs() invocation x86, irq: Remove pointless irq_reserve_irqs() call genirq: Make create/destroy_irq() ia64 private tile: Use SPARSE_IRQ tile: pci: Use irq_alloc/free_hwirq() ...
2014-06-03Merge back earlier cpufreq material.Rafael J. Wysocki1-15/+5
Conflicts: arch/mips/loongson/lemote-2f/clock.c drivers/cpufreq/intel_pstate.c
2014-05-26drivers: sh: pm_runtime implementation needs to suspend and resume devicesBen Dooks1-2/+35
If we override the platform bus calls for pm_runtime then we end up with the calls to the devices' suspend and resume methods ignored in favour of the bus ones. Change to calling the pm_runtime calls to suspend and resume the devices specifically in the drivers/sh/pm_runtime.c implementation to allow any device that may want to run power management to do so. Note, all the current sh driver implementations do not use their own power management code so this is not a major implementation issues. This also brings the implementation into line with the versions used by the Davinci and Keystone PM domain code, so once fully tested these implementations could be merged together. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-26drivers: sh: Restrict INTC_USERIMASK to SH4AGeert Uytterhoeven1-1/+1
register_intc_userimask() is called from sh4a code only. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [r8a7779 legacy] Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-26drivers: sh: pm_runtime does not need idle callbackBen Dooks1-8/+0
In the runtime_pm idle callback the code assumes that a NULL .runtime_idle entry is the same as a .runtime_idle entry that returns 0 as a result. This means the entry in drivers/sh/pm_runtime can be removed in favour of just leaving the entry NULL. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [r8a7779 legacy] Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-16sh: intc: Remove pointless irq_reserve_irqs() invocationThomas Gleixner1-6/+0
The preceding call to irq_create_identity_mapping() marks the interrupt as allocated already. Remove the leftover. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Grant Likely <grant.likely@linaro.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Acked-by: Simon Horman <horms@verge.net.au> Cc: linux-sh@vger.kernel.org Link: http://lkml.kernel.org/r/20140507154339.189047829@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2014-05-12drivers: sh: compile drivers/sh/pm_runtime.c if ARCH_SHMOBILE_MULTIGeert Uytterhoeven2-7/+27
If the kernel is built to support multi-ARM configuration with shmobile support built in, then drivers/sh is not built. This contains the PM runtime code in drivers/sh/pm_runtime.c, which implicitly enables the module clocks for all devices, and thus is quite essential. Without this, the state of clocks depends on implicit reset state, or on the bootloader. If ARCH_SHMOBILE_MULTI then build the drivers/sh directory, but ensure that bits that may conflict (drivers/sh/clk if the common clock framework is enabled) or are not used (drivers/sh/intc), are not built. Also, only enable the PM runtime code when actually running on a shmobile SoCs that needs it. ARCH_SHMOBILE_MULTI was added a while ago by commit efacfce5f8a523457e9419a25d52fe39db00b26a ("ARM: shmobile: Introduce ARCH_SHMOBILE_MULTI"), but drivers/sh was compiled for both ARCH_SHMOBILE_LEGACY and ARCH_SHMOBILE_MULTI until commit bf98c1eac1d4a6bcf00532e4fa41d8126cd6c187 ("ARM: Rename ARCH_SHMOBILE to ARCH_SHMOBILE_LEGACY"). Inspired by a patch from Ben Dooks <ben.dooks@codethink.co.uk>. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-04-30sh: clk: Use cpufreq_for_each_valid_entry macro for iterationStratos Karafotis1-15/+5
The cpufreq core now supports the cpufreq_for_each_valid_entry macro helper for iteration over the cpufreq_frequency_table, so use it. It should have no functional changes. Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-06Merge tag 'sh-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-1/+1
Pull ARM SoC sh driver change from Arnd Bergmann: "The drivers/sh subdirectory used to get merged through the SH architecture tree, but things are in flux there and some of the drivers are shared with ARM shmobile, we have picked it up for the time being. There is only one trivial patch from Laurent Pinchart this time" * tag 'sh-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: sh: intc: Enable driver compilation with COMPILE_TEST
2014-02-18sh: intc: Enable driver compilation with COMPILE_TESTLaurent Pinchart1-1/+1
This helps increasing build testing coverage. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-02-04ARM: shmobile: wait for MSTP clock status to toggle, when enabling itGuennadi Liakhovetski1-0/+38
On r-/sh-mobile SoCs MSTP clocks are used by the runtime PM to dynamically enable and disable peripheral clocks. To make sure the clock has really started we have to read back its status register until it confirms success. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-06-28Merge branch 'pm-assorted'Rafael J. Wysocki1-1/+1
* pm-assorted: PM / QoS: Add pm_qos and dev_pm_qos to events-power.txt PM / QoS: Add dev_pm_qos_request tracepoints PM / QoS: Add pm_qos_request tracepoints PM / QoS: Add pm_qos_update_target/flags tracepoints PM / QoS: Update Documentation/power/pm_qos_interface.txt PM / Sleep: Print last wakeup source on failed wakeup_count write PM / QoS: correct the valid range of pm_qos_class PM / wakeup: Adjust messaging for wake events during suspend PM / Runtime: Update .runtime_idle() callback documentation PM / Runtime: Rework the "runtime idle" helper routine PM / Hibernate: print physical addresses consistently with other parts of kernel
2013-06-04cpufreq: rename index as driver_data in cpufreq_frequency_tableViresh Kumar1-2/+2
The "index" field of struct cpufreq_frequency_table was never an index and isn't used at all by the cpufreq core. It only is useful for cpufreq drivers for their internal purposes. Many people nowadays blindly set it in ascending order with the assumption that the core will use it, which is a mistake. Rename it to "driver_data" as that's what its purpose is. All of its users are updated accordingly. [rjw: Changelog] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-06-03PM / Runtime: Rework the "runtime idle" helper routineRafael J. Wysocki1-1/+1
The "runtime idle" helper routine, rpm_idle(), currently ignores return values from .runtime_idle() callbacks executed by it. However, it turns out that many subsystems use pm_generic_runtime_idle() which checks the return value of the driver's callback and executes pm_runtime_suspend() for the device unless that value is not 0. If that logic is moved to rpm_idle() instead, pm_generic_runtime_idle() can be dropped and its users will not need any .runtime_idle() callbacks any more. Moreover, the PCI, SCSI, and SATA subsystems' .runtime_idle() routines, pci_pm_runtime_idle(), scsi_runtime_idle(), and ata_port_runtime_idle(), respectively, as well as a few drivers' ones may be simplified if rpm_idle() calls rpm_suspend() after 0 has been returned by the .runtime_idle() callback executed by it. To reduce overall code bloat, make the changes described above. Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com> Tested-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Kevin Hilman <khilman@linaro.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Alan Stern <stern@rowland.harvard.edu>
2013-01-29Merge branch 'pfc' of ↵Olof Johansson7-1370/+0
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/sh-pinmux From Simon Horman. Based on agreement between me, Paul Mundt, Linus Walleij and Simon, we're mergning this large branch of pinctrl conversion through arm-soc, even though it contains the corresponding conversions for arch/sh. Main reason for this is tight dependencies (that will now mostly be broken) between the arch/sh and mach-shmobile implementations. There will be more of this in 3.10 to do device-tree bindings, but this is the initial conversion. * 'pfc' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (80 commits) sh-pfc: Move sh_pfc.h from include/linux/ to driver directory sh-pfc: Remove pinmux_info definition sh: Remove unused sh_pfc_register_info() function sh: shx3: pinmux: Use driver-provided pinmux info sh: sh7786: pinmux: Use driver-provided pinmux info sh: sh7785: pinmux: Use driver-provided pinmux info sh: sh7757: pinmux: Use driver-provided pinmux info sh: sh7734: pinmux: Use driver-provided pinmux info sh: sh7724: pinmux: Use driver-provided pinmux info sh: sh7723: pinmux: Use driver-provided pinmux info sh: sh7722: pinmux: Use driver-provided pinmux info sh: sh7720: pinmux: Use driver-provided pinmux info sh: sh7269: pinmux: Use driver-provided pinmux info sh: sh7264: pinmux: Use driver-provided pinmux info sh: sh7203: pinmux: Use driver-provided pinmux info ARM: shmobile: sh73a0: Use driver-provided pinmux info ARM: shmobile: sh7372: Use driver-provided pinmux info ARM: shmobile: r8a7779: Use driver-provided pinmux info ARM: shmobile: r8a7740: Use driver-provided pinmux info sh-pfc: Add shx3 pinmux support ... Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-25sh-pfc: Move driver from drivers/sh/ to drivers/pinctrl/Laurent Pinchart8-1308/+0
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Remove unused resource and num_resources platform data fieldsLaurent Pinchart1-13/+4
The fields are now unused, remove them. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Remove platform device registrationLaurent Pinchart1-12/+0
The PFC platform device is now registered by arch code, remove the legacy registration mechanism. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Support passing resources through platform deviceLaurent Pinchart2-7/+21
Resources should be passed through the platform device, not through platform data. Default to platform device resources and fall back to platform data resources if not available. Support for platform data resources will be removed when arch code will be converted. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Split platform device and platform driver registrationLaurent Pinchart1-9/+6
Move platform driver registration to a static postcore initcall. This prepares the move of platform device registration to arch code. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Use sh_pfc_ namespace prefix through the whole driverLaurent Pinchart2-56/+55
Most of the function and structure names are prefixed by sh_pfc_. Fix the ones that are not to avoid namespace clashes (especially for functions that start with gpio_). Not included in this patch are the platform data structures, those will be reworked later. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Sort headers alphabeticallyLaurent Pinchart3-15/+15
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Remove check for impossible error conditionLaurent Pinchart1-2/+2
The pfc pointer can't be NULL in the get and set value functions, remove the error check. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Let the compiler decide whether to inline functionsLaurent Pinchart1-5/+3
The compiler should be smart enough to automatically inline static functions that are called from a single location. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Use devm_ioremap_nocache()Laurent Pinchart1-21/+4
Replace probe-time ioremap_nocache() call with devm_ioremap_nocache() and get rid of the corresponding iounmap() call. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Use devm_kzalloc()Laurent Pinchart3-40/+19
Replace probe-time kmalloc()/kzalloc() calls with devm_kzalloc() and get rid of the corresponding kfree() calls. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Move platform device and driver to the coreLaurent Pinchart4-94/+114
The pinctrl module registers both a platform device and a platform driver. The only purpose of this awkward construction is to have a device to pass to the pinctrl registration function. As a first step to get rid of this hack, move the platform device and driver from the pinctrl module to the core. The platform device will then be moved to arch code. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-01-25sh-pfc: Merge PFC core and gpioLaurent Pinchart5-87/+25
The PFC core calls the gpio module gpiochip registration in its register_sh_pfc() function, itself called at arch initialization time. If the gpio module isn't present then the gpiochip will never be registered. As the gpio module can only be present at arch initialization time if it's builtin, there's no point in allowing to build it as a module. Make it a boolean option, and initialize it synchronously with the core if selected. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-25 15:12:39 +0300