From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: GPIO regression in Linux next caused by syscon change Date: Fri, 12 Feb 2016 16:26:43 -0800 Message-ID: <20160213002643.GQ19432@atomide.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Philipp Zabel , Arnd Bergmann , Lee Jones Cc: linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org List-Id: linux-omap@vger.kernel.org Hi, Looks like commit effe02710335 ("mfd: syscon: Set regmap max_register in of_syscon_register") somehow breaks smsc911x GPIO interrupt for me at least on omap3: irq 241: nobody cared (try booting with the "irqpoll" option) CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.5.0-rc3-next-20160212 #864 Hardware name: Generic OMAP36xx (Flattened Device Tree) [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [] (show_stack) from [] (dump_stack+0xb0/0xe4) [] (dump_stack) from [] (__report_bad_irq+0x24/0xc0) [] (__report_bad_irq) from [] (note_interrupt+0x27c/0x2dc) [] (note_interrupt) from [] (handle_irq_event_percpu+0x184/0x200) [] (handle_irq_event_percpu) from [] (handle_irq_event+0x38/0x5c) [] (handle_irq_event) from [] (handle_level_irq+0xc0/0x154) [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x34) [] (generic_handle_irq) from [] (omap_gpio_irq_handler+0x120/0x160) [] (omap_gpio_irq_handler) from [] (handle_irq_event_percpu+0x54/0x200) [] (handle_irq_event_percpu) from [] (handle_irq_event+0x38/0x5c) [] (handle_irq_event) from [] (handle_level_irq+0xc0/0x154) [] (handle_level_irq) from [] (generic_handle_irq+0x20/0x34) [] (generic_handle_irq) from [] (__handle_domain_irq+0x64/0xe0) [] (__handle_domain_irq) from [] (__irq_svc+0x58/0x78) [] (__irq_svc) from [] (_raw_spin_unlock_irqrestore+0x34/0x44) [] (_raw_spin_unlock_irqrestore) from [] (__setup_irq+0x40c/0x5e0) [] (__setup_irq) from [] (request_threaded_irq+0xc0/0x158) [] (request_threaded_irq) from [] (smsc911x_drv_probe+0x588/0xfec) [] (smsc911x_drv_probe) from [] (platform_drv_probe+0x4c/0xb0) [] (platform_drv_probe) from [] (driver_probe_device+0x208/0x2c0) [] (driver_probe_device) from [] (__driver_attach+0x94/0x98) [] (__driver_attach) from [] (bus_for_each_dev+0x6c/0xa0) [] (bus_for_each_dev) from [] (bus_add_driver+0x18c/0x214) [] (bus_add_driver) from [] (driver_register+0x78/0xf8) [] (driver_register) from [] (do_one_initcall+0x80/0x1dc) [] (do_one_initcall) from [] (kernel_init_freeable+0x218/0x2ec) [] (kernel_init_freeable) from [] (kernel_init+0x8/0xf4) [] (kernel_init) from [] (ret_from_fork+0x14/0x24) handlers: [] smsc911x_irqhandler Disabling IRQ #241 libphy: smsc911x-mdio: probed I'm not seeing the connection between regmap and GPIO, so no idea what goes wrong here. Regards, Tony