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2015-07-21Merge tag 'pinctrl-v4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlLinus Torvalds7-12/+8
Pull pin control fixes from Linus Walleij: "Here are some overly ripe pin control fixes for the v4.2 series. They got delayed because of various crap commits and having to clean and rinse the patch stack a few times. Now they are however looking good. - some dead defines dropped from the Samsung driver, was targeted for -rc2 but got delayed - drop the strict mode from abx500, this was too strict - fix the R-Car sparse IRQs code to work as intended - fix the IRQ code for the pinctrl-single GPIO backend to not enforce threaded IRQs - clear the latched events/IRQs for the Broadcom BCM2835 driver - fix up debugfs for the Freescale imx1 driver - fix a typo bug in the Schmitt Trigger setup in the LPC18xx driver" * tag 'pinctrl-v4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: lpc18xx: fix schmitt trigger setup Subject: pinctrl: imx1-core: Fix debug output in .pin_config_set callback pinctrl: bcm2835: Clear the event latch register when disabling interrupts pinctrl: single: ensure pcs irq will not be forced threaded sh-pfc: fix sparse GPIOs for R-Car SoCs pinctrl: abx500: remove strict mode pinctrl: samsung: Remove old unused defines
2015-07-20pinctrl: lpc18xx: fix schmitt trigger setupJoachim Eastwood1-2/+2
The param_val variable is what determines if schmitt trigger is enabled on a pin or not. A typo here mean that schmitt trigger was always enabled for standard and i2c pins. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-20Subject: pinctrl: imx1-core: Fix debug output in .pin_config_set callbackUwe Kleine-König1-2/+1
imx1_pinconf_set assumes that the array of pins in struct imx1_pinctrl_soc_info can be indexed by pin id to get the pinctrl_pin_desc for a pin. This used to be correct up to commit 607af165c047 which removed some entries from the array and so made it wrong to access the array by pin id. The result of this bug is a wrong pin name in the output for small pin ids and an oops for the bigger ones. This patch is the result of a discussion that includes patches by Markus Pargmann and Chris Ruehl. Fixes: 607af165c047 ("pinctrl: i.MX27: Remove nonexistent pad definitions") Cc: stable@vger.kernel.org Reported-by: Chris Ruehl <chris.ruehl@gtsys.com.hk> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Markus Pargmann <mpa@pengutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-20pinctrl: bcm2835: Clear the event latch register when disabling interruptsJonathan Bell1-0/+2
It's possible to hit a race condition if interrupts are generated on a GPIO pin when the IRQ line in question is being disabled. If the interrupt is freed, bcm2835_gpio_irq_disable() is called which disables the event generation sources (edge, level). If an event occurred between the last disabling of hard IRQs and the write to the event source registers, a bit would be set in the GPIO event detect register (GPEDSn) which goes unacknowledged by bcm2835_gpio_irq_handler() so Linux complains loudly. There is no per-GPIO mask register, so when disabling GPIO interrupts write 1 to the relevant bit in GPEDSn to clear out any stale events. Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-20pinctrl: single: ensure pcs irq will not be forced threadedGrygorii Strashko1-1/+2
The PSC IRQ is requested using request_irq() API and as result it can be forced to be threaded IRQ in RT-Kernel if PCS_QUIRK_HAS_SHARED_IRQ is enabled for pinctrl domain. As result, following 'possible irq lock inversion dependency' report can be seen: ========================================================= [ INFO: possible irq lock inversion dependency detected ] 3.14.43-rt42-00360-g96ff499-dirty #24 Not tainted --------------------------------------------------------- irq/369-pinctrl/927 just changed the state of lock: (&pcs->lock){+.....}, at: [<c0375b54>] pcs_irq_handle+0x48/0x9c but this lock was taken by another, HARDIRQ-safe lock in the past: (&irq_desc_lock_class){-.....} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&pcs->lock); local_irq_disable(); lock(&irq_desc_lock_class); lock(&pcs->lock); <Interrupt> lock(&irq_desc_lock_class); *** DEADLOCK *** no locks held by irq/369-pinctrl/927. the shortest dependencies between 2nd lock and 1st lock: -> (&irq_desc_lock_class){-.....} ops: 58724 { IN-HARDIRQ-W at: [<c0090040>] lock_acquire+0x9c/0x158 [<c07065c8>] _raw_spin_lock+0x48/0x58 [<c009edac>] handle_fasteoi_irq+0x24/0x15c [<c009abb0>] generic_handle_irq+0x3c/0x4c [<c000f83c>] handle_IRQ+0x50/0xa0 [<c0008674>] gic_handle_irq+0x3c/0x6c [<c0707a04>] __irq_svc+0x44/0x8c [<c000fc44>] arch_cpu_idle+0x40/0x4c [<c009aadc>] cpu_startup_entry+0x270/0x2e0 [<c06fcbf8>] rest_init+0xd4/0xe4 [<c0a44bfc>] start_kernel+0x3d0/0x3dc [<80008084>] 0x80008084 INITIAL USE at: [<c0090040>] lock_acquire+0x9c/0x158 [<c070674c>] _raw_spin_lock_irqsave+0x54/0x68 [<c009aff8>] __irq_get_desc_lock+0x64/0xa4 [<c009e38c>] irq_set_chip+0x30/0x78 [<c009ec30>] irq_set_chip_and_handler_name+0x24/0x3c [<c036ca10>] gic_irq_domain_map+0x48/0xb4 [<c00a0a80>] irq_domain_associate+0x84/0x1d4 [<c00a1154>] irq_create_mapping+0x80/0x11c [<c00a1270>] irq_create_of_mapping+0x80/0x120 [<c05cdaa8>] irq_of_parse_and_map+0x34/0x3c [<c0a4ea24>] omap_dm_timer_init_one+0x90/0x30c [<c0a4eef0>] omap5_realtime_timer_init+0x8c/0x48c [<c0a486b0>] time_init+0x28/0x38 [<c0a44a6c>] start_kernel+0x240/0x3dc [<80008084>] 0x80008084 } ... key at: [<c1049ce0>] irq_desc_lock_class+0x0/0x8 ... acquired at: [<c07065c8>] _raw_spin_lock+0x48/0x58 [<c0375a90>] pcs_irq_unmask+0x58/0xa0 [<c009ea48>] irq_enable+0x38/0x48 [<c009ead0>] irq_startup+0x78/0x7c [<c009d440>] __setup_irq+0x4a8/0x4f4 [<c009d5dc>] request_threaded_irq+0xb8/0x138 [<c0415a5c>] omap_8250_startup+0x4c/0x148 [<c041276c>] serial8250_startup+0x24/0x30 [<c040d0ec>] uart_startup.part.9+0x5c/0x1b4 [<c040dbcc>] uart_open+0xf4/0x16c [<c03f0540>] tty_open+0x170/0x61c [<c0157028>] chrdev_open+0xbc/0x1b4 [<c0150494>] do_dentry_open+0x1e8/0x2bc [<c0150a84>] finish_open+0x44/0x5c [<c0160d50>] do_last.isra.47+0x710/0xca0 [<c01613a4>] path_openat+0xc4/0x640 [<c0162904>] do_filp_open+0x3c/0x98 [<c0151bdc>] do_sys_open+0x114/0x1d8 [<c0151cc8>] SyS_open+0x28/0x2c [<c0a44d70>] kernel_init_freeable+0x168/0x1e4 [<c06fcc24>] kernel_init+0x1c/0xf8 [<c000eee8>] ret_from_fork+0x14/0x20 -> (&pcs->lock){+.....} ops: 65 { HARDIRQ-ON-W at: [<c0090040>] lock_acquire+0x9c/0x158 [<c07065c8>] _raw_spin_lock+0x48/0x58 [<c0375b54>] pcs_irq_handle+0x48/0x9c [<c0375c5c>] pcs_irq_handler+0x1c/0x28 [<c009c458>] irq_forced_thread_fn+0x30/0x74 [<c009c784>] irq_thread+0x158/0x1c4 [<c0063fc4>] kthread+0xd4/0xe8 [<c000eee8>] ret_from_fork+0x14/0x20 INITIAL USE at: [<c0090040>] lock_acquire+0x9c/0x158 [<c070674c>] _raw_spin_lock_irqsave+0x54/0x68 [<c0375344>] pcs_enable+0x7c/0xe8 [<c0372a44>] pinmux_enable_setting+0x178/0x220 [<c036fecc>] pinctrl_select_state+0x110/0x194 [<c04732dc>] pinctrl_bind_pins+0x7c/0x108 [<c045853c>] driver_probe_device+0x70/0x254 [<c0458810>] __driver_attach+0x9c/0xa0 [<c045674c>] bus_for_each_dev+0x78/0xac [<c0458030>] driver_attach+0x2c/0x30 [<c0457c78>] bus_add_driver+0x15c/0x204 [<c0458ee0>] driver_register+0x88/0x108 [<c045a168>] __platform_driver_register+0x64/0x6c [<c0a8170c>] omap_hsmmc_driver_init+0x1c/0x20 [<c0008a94>] do_one_initcall+0x110/0x170 [<c0a44d48>] kernel_init_freeable+0x140/0x1e4 [<c06fcc24>] kernel_init+0x1c/0xf8 [<c000eee8>] ret_from_fork+0x14/0x20 } ... key at: [<c1088a8c>] __key.18572+0x0/0x8 ... acquired at: [<c008cdd4>] mark_lock+0x388/0x76c [<c008df40>] __lock_acquire+0x6d0/0x1f98 [<c0090040>] lock_acquire+0x9c/0x158 [<c07065c8>] _raw_spin_lock+0x48/0x58 [<c0375b54>] pcs_irq_handle+0x48/0x9c [<c0375c5c>] pcs_irq_handler+0x1c/0x28 [<c009c458>] irq_forced_thread_fn+0x30/0x74 [<c009c784>] irq_thread+0x158/0x1c4 [<c0063fc4>] kthread+0xd4/0xe8 [<c000eee8>] ret_from_fork+0x14/0x20 stack backtrace: CPU: 1 PID: 927 Comm: irq/369-pinctrl Not tainted 3.14.43-rt42-00360-g96ff499-dirty #24 [<c00177e0>] (unwind_backtrace) from [<c00130b0>] (show_stack+0x20/0x24) [<c00130b0>] (show_stack) from [<c0702958>] (dump_stack+0x84/0xd0) [<c0702958>] (dump_stack) from [<c008bcfc>] (print_irq_inversion_bug+0x1d0/0x21c) [<c008bcfc>] (print_irq_inversion_bug) from [<c008bf18>] (check_usage_backwards+0xb4/0x11c) [<c008bf18>] (check_usage_backwards) from [<c008cdd4>] (mark_lock+0x388/0x76c) [<c008cdd4>] (mark_lock) from [<c008df40>] (__lock_acquire+0x6d0/0x1f98) [<c008df40>] (__lock_acquire) from [<c0090040>] (lock_acquire+0x9c/0x158) [<c0090040>] (lock_acquire) from [<c07065c8>] (_raw_spin_lock+0x48/0x58) [<c07065c8>] (_raw_spin_lock) from [<c0375b54>] (pcs_irq_handle+0x48/0x9c) [<c0375b54>] (pcs_irq_handle) from [<c0375c5c>] (pcs_irq_handler+0x1c/0x28) [<c0375c5c>] (pcs_irq_handler) from [<c009c458>] (irq_forced_thread_fn+0x30/0x74) [<c009c458>] (irq_forced_thread_fn) from [<c009c784>] (irq_thread+0x158/0x1c4) [<c009c784>] (irq_thread) from [<c0063fc4>] (kthread+0xd4/0xe8) [<c0063fc4>] (kthread) from [<c000eee8>] (ret_from_fork+0x14/0x20) To fix it use IRQF_NO_THREAD to ensure that pcs irq will not be forced threaded. Cc: Tony Lindgren <tony@atomide.com> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-20sh-pfc: fix sparse GPIOs for R-Car SoCsSergei Shtylyov1-1/+1
The PFC driver causes the kernel to hang on the R-Car gen2 SoC based boards when the CPU_ALL_PORT() macro is fixed to reflect the reality, i.e. when the GPIO space becomes actually sparse. This happens because the _GP_GPIO() macro includes an indexed initializer which causes the "holes" (array entries filled with all 0s) between the groups of the existing GPIOs; and the driver can't cope with that. There seems to be no reason to use the indexed initializer, so we can remove the index specifier and so avoid the "holes". Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-20pinctrl: abx500: remove strict modeLinus Walleij1-1/+0
Commit a21763a0b1e5a5ab8310f581886d04beadc16616 "pinctrl: nomadik: activate strict mux mode" put all Nomadik pin controllers to strict mode. This was not good on the Snowball platform: the muxing of GPIOs to different pins is done with hogs in the DTS file, and then these GPIOs are used by offset, relying on hogs to mux the pins. Since that means the pin controller "owns" the pins and at the same time we have a GPIO user, this pin controller is by definition not strict. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17Update Viresh Kumar's email addressViresh Kumar9-14/+14
Switch to my kernel.org alias instead of a badly named gmail address, which I rarely use. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-17pinctrl: pinconf: pinconf_show_config() can be statickbuild test robot1-1/+1
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17pinctrl/sunxi: Prepare sunxi_pinctrl_irq_handler 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: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/sirf: Prepare xxx_gpio-handle_irq for irq argument removalThomas Gleixner2-3/+5
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: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/qcom/msm: Prepare msm_gpio_irq_handler 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: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/rockchip: Prepare rockchip_irq_demux for irq argument removalThomas Gleixner1-2/+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: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/pistachio: Prepare pistachio_gpio_irq_handler for irq argument removalThomas Gleixner1-2/+4
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: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/coh901: Prepare u300_gpio_irq_handler 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: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/amd: Prepare amd_gpio_irq_handler 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: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org>
2015-07-17pinctrl: Use irq_desc_get_xxx() to avoid redundant lookup of irq_descJiang Liu16-50/+46
Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we already have a pointer to corresponding irq_desc. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-17pinctrl/samsung: Use irq_set_handler_locked()Thomas Gleixner2-9/+9
Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/exynos: Use irq_set_handler_locked()Thomas Gleixner1-2/+2
Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and replacement was done with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/qcom: Use irq_set_handler_locked()Thomas Gleixner1-2/+2
Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and replacement was done with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/rockchip: Use irq_set_handler_locked()Thomas Gleixner1-2/+2
Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and replacement was done with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/at91: Use irq_set_handler_locked()Thomas Gleixner1-5/+5
Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and replacement was done with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/amd: Use irq_set_handler_locked()Thomas Gleixner1-5/+5
Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and replacement was done with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/adi2: Use irq_set_handler_locked()Thomas Gleixner1-2/+2
Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and update was done with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/intel: Use irq_set_handler_locked()Thomas Gleixner1-2/+2
Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and replacement was done with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/cherryview: Use irq_set_handler_locked()Thomas Gleixner1-3/+3
Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and replacement was done with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/baytrail: Use irq_set_handler_locked()Thomas Gleixner1-2/+2
Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and replacement was done with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/bcm2835: Use irq_set_handler_locked()Thomas Gleixner1-2/+2
Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and replacement was done with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/exynos: Consolidate chained IRQ handler install/removeThomas Gleixner1-2/+3
Chained irq handlers usually set up handler data as well. We now have a function to set both under irq_desc->lock. Replace the two calls with one. Search and conversion was done with coccinelle. 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: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl: Consolidate chained IRQ handler install/removeThomas Gleixner1-3/+3
Chained irq handlers usually set up handler data as well. We now have a function to set both under irq_desc->lock. Replace the two calls with one. Search and conversion was done with coccinelle. 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: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl/rockchip: Consolidate chained IRQ handler install/removeThomas Gleixner1-2/+2
Chained irq handlers usually set up handler data as well. We now have a function to set both under irq_desc->lock. Replace the two calls with one. Search and conversion was done with coccinelle. 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: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org
2015-07-17pinctrl: add support for Qualcomm Technologies QDF2xxx ARM64 SoCsTimur Tabi3-0/+131
Add the pinctrl driver for the Qualcomm Technologies QDF2xxx ARM64 SoCs, which uses the Qualcomm Technologies TLMM pinctrl/gpio device. This driver is probed via ACPI and uses the pinctrl-msm.c backend driver. This driver is intended to be used only an ACPI-enabled system. As such, UEFI will handle all pin control configuration, so this driver does not provide pin control functions. It is effectively a GPIO-only driver. Signed-off-by: Timur Tabi <timur@codeaurora.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17pinctrl: qcom: ssbi: Family A gpio & mpp driversBjorn Andersson4-0/+1687
This introduces pinctrl drivers for gpio and mpp blocks found in family A PMICs. Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17pinctrl: qcom: spmi-mpp: Transpose pinmux functionBjorn Andersson1-69/+86
The "function" of the MPP driver was inherited from the GPIO driver, but the differences between the two hardware blocks makes both the driver and the device tree binding to be awkward. Instead of overloading the "normal" function with various modes this patch transposes the pinmux function to represent the three operating modes of the MPP (digital, analog and current sink). The properties of pin pairing and DTEST routing is moved to separate properties. Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17pinctrl: qcom: spmi-mpp: Add support for setting analog output levelBjorn Andersson1-0/+23
When the MPP is configured for analog output the output level is selected by the AOUT_CTL register, this patch makes it possible to control this. Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17pinctrl: lpc18xx: add support for usb1 pinconfJoachim Eastwood1-4/+50
The dedicated USB1 pins can be configured with pull-down and for low power mode (suspend). Add support for this in the pinctrl driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17pinctrl: pinconf: Fix display of configsJon Hunter1-37/+27
The function pinconf_dbg_config_print() only prints the configuration of the 1st pin config in an array of pin configurations. Fix this so that all pin configurations in the array are displayed. There are a few places in the code where the pin configs are displayed and so add a helper function to display the pin configs to simplify the code. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17pinctrl: pinconf: Allow groups to be configured via debugfsJon Hunter1-6/+14
The function pinconf_dbg_config_write() currently only supports configuring a pin configuration mapping via the debugfs. Allow group mappings to also be configured via the debugfs. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17pinctrl: qcom: Hook pm_power_down for shutdown supportStephen Boyd1-0/+10
Assign pm_power_off() if we have the PS_HOLD functionality so that we can properly shutdown the SoC. Otherwise, shutdown won't do anything besides put the CPU into a tight loop. Unfortunately, we have to use a singleton here because pm_power_off() doesn't take any arguments. Fortunately there's only one instance of the pinctrl device on a running system so this isn't a problem. Cc: Pramod Gurav <pramod.gurav@smartplayin.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-17pinctrl: samsung: Remove old unused definesKrzysztof Kozlowski1-5/+0
Since 9a2c1c3b91aa ("pinctrl: samsung: Allow grouping multiple pinmux/pinconf nodes") the defines for GPIO group and function names are not used anywhere in the driver. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Inspired-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16pinctrl: sirf: Drop owner assignment from platform_driverKrzysztof Kozlowski1-1/+0
platform_driver does not need to set an owner because platform_driver_register() will set it. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16pinctrl: single: dra7: remove PCS_QUIRK_SHARED_IRQGrygorii Strashko1-1/+0
On DRA7 there is one pinctrl domain (dra7_pmx_core) and PRCM wake-up IRQ is not shared, so remove quirk. Cc: Nishanth Menon <nm@ti.com> Fixes: 31320beaa3d3 ('pinctrl: single: Add DRA7 pinctrl compatibility') Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Acked-by: Tero Kristo <t-kristo@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16pinctrl: sh-pfc: Remove obsolete r8a7740 platform_device_id entryGeert Uytterhoeven1-3/+0
Since the removal of the r8a7740 legacy SoC code in commit 44d88c754e57a6d9 ("ARM: shmobile: Remove legacy SoC code for R-Mobile A1"), r8a7740 is only supported in generic DT-only ARM multi-platform builds. The driver doesn't need to match platform devices by name anymore, hence remove the corresponding platform_device_id entry. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16pinctrl: sh-pfc: r8a7740: Remove obsolete multi-platform checkGeert Uytterhoeven1-4/+0
Since the removal of the r8a7740 legacy SoC code in commit 44d88c754e57a6d9 ("ARM: shmobile: Remove legacy SoC code for R-Mobile A1"), r8a7740 is only supported in generic ARM multi-platform builds. Hence CONFIG_ARCH_MULTIPLATFORM is always set, and the check can be removed. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16pinctrl: sh-pfc: Remove obsolete sh73a0 platform_device_id entryGeert Uytterhoeven1-3/+0
Since the removal of the sh73a0 legacy SoC code in commit 9a9863987bf7307f ("ARM: shmobile: Remove legacy SoC code for SH-Mobile AG5"), sh73a0 is only supported in generic DT-only ARM multi-platform builds. The driver doesn't need to match platform devices by name anymore, hence remove the corresponding platform_device_id entry. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16pinctrl: sh-pfc: sh73a0: Remove obsolete multi-platform checkGeert Uytterhoeven1-4/+0
Since the removal of the sh73a0 legacy SoC code in commit 9a9863987bf7307f ("ARM: shmobile: Remove legacy SoC code for SH-Mobile AG5"), sh73a0 is only supported in generic ARM multi-platform builds. Hence CONFIG_ARCH_MULTIPLATFORM is always set, and the check can be removed. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16pinctrl: sh-pfc: Convert to platform_get_*()Geert Uytterhoeven1-25/+21
If the pin function controller (which can be a GPIO controller) is instantiated before the interrupt controllers, due to the ordering in the DTS, the irq domains for the interrupt controllers referenced by its "interrupts-extended" property cannot be found yet: irq: no irq domain found for /interrupt-controller@e61c0000 ! As the sh-pfc driver accesses the platform device's resources directly, it cannot find the (optional) IRQ resources, and thinks no interrupts are available. This may lead to failures later, when GPIOs are used as interupts: gpio-keys keyboard: Unable to claim irq 0; error -22 gpio-keys: probe of keyboard failed with error -22 To fix this, add support for deferred probing to sh-pfc, by converting the driver from direct platform device resource access to using the platform_get_resource() and platform_get_irq() helpers. Note that while this fixes the root cause worked around by commit e4ba0a9bddff3ba5 ("ARM: shmobile: r8a73a4: Move pfc node to work around probe ordering bug"), I strongly recommend against reverting the workaround now, as this would lead to lots of probe deferrals in drivers relying on pinctrl. This may be reconsidered once the DT code starts taking into account phandle dependencies during device instantation. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16pinctrl: sh-pfc: Accept standard function, pins and groups propertiesLaurent Pinchart1-8/+34
The "function", "pins" and "groups" pinmux and pinctrl properties have been standardized. Support them in addition to the custom "renesas,*" properties. New-style and old-style properties can't be mixed in DT. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16pinctrl: samsung: remove "out of memory" messagesDan Carpenter1-49/+18
Checkpatch.pl complains about these: WARNING: Possible unnecessary 'out of memory' message The messages use a little extra RAM and they add a few extra lines of code. We're probably never going to hit these out of memory situations but if we did then kmalloc() has pretty good error messages built-in. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-07-16pinctrl: samsung: don't truncate the last charDan Carpenter1-15/+7
We were allocating enough space because sizeof("-grp") and sizeof("-mux") are both equal to 5 but in the snprintf() we only allowed for 4 characters so the last 'p' and 'x' characters were truncated. The allocate and sprintf can be done in one step with the kasprintf(). Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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