Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki ________________________________________ From: Tony Lindgren [tony@xxxxxxxxxxx] Sent: Friday, June 07, 2013 11:50 PM To: linus.walleij@xxxxxxxxxx Cc: devicetree-discuss@xxxxxxxxxxxxxxxx; Haojian Zhuang; Ujfalusi, Peter; linux-omap@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; Quadros, Roger Subject: [PATCH 3/4] pinctrl: single: omap: Add SoC specific module for wake-up events For wake-up events from deeper idle modes we need to check the configured padconf registers for the wake-up bit and then call the related interrupt handler. Done in collaboration with Roger Quadros <rogerq@xxxxxx>. Cc: Haojian Zhuang <haojian.zhuang@xxxxxxxxx> Cc: Peter Ujfalusi <peter.ujfalusi@xxxxxx> Cc: devicetree-discuss@xxxxxxxxxxxxxxxx Signed-off-by: Roger Quadros <rogerq@xxxxxx> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx> --- drivers/pinctrl/Makefile | 3 drivers/pinctrl/pinctrl-single-omap.c | 287 +++++++++++++++++++++ include/linux/platform_data/pinctrl-single-omap.h | 4 3 files changed, 293 insertions(+), 1 deletion(-) create mode 100644 drivers/pinctrl/pinctrl-single-omap.c create mode 100644 include/linux/platform_data/pinctrl-single-omap.h diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index 9bdaeb8..abf7f01 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -30,7 +30,8 @@ obj-$(CONFIG_PINCTRL_NOMADIK) += pinctrl-nomadik.o obj-$(CONFIG_PINCTRL_STN8815) += pinctrl-nomadik-stn8815.o obj-$(CONFIG_PINCTRL_DB8500) += pinctrl-nomadik-db8500.o obj-$(CONFIG_PINCTRL_DB8540) += pinctrl-nomadik-db8540.o -obj-$(CONFIG_PINCTRL_SINGLE) += pinctrl-single.o +pcs-$(CONFIG_ARCH_OMAP2PLUS) += pinctrl-single-omap.o +obj-$(CONFIG_PINCTRL_SINGLE) += pinctrl-single.o $(pcs-y) obj-$(CONFIG_PINCTRL_SIRF) += pinctrl-sirf.o obj-$(CONFIG_PINCTRL_SUNXI) += pinctrl-sunxi.o obj-$(CONFIG_PINCTRL_TEGRA) += pinctrl-tegra.o diff --git a/drivers/pinctrl/pinctrl-single-omap.c b/drivers/pinctrl/pinctrl-single-omap.c new file mode 100644 index 0000000..680cf81 --- /dev/null +++ b/drivers/pinctrl/pinctrl-single-omap.c @@ -0,0 +1,287 @@ +/* + * pinctrl-single-omap - omap specific wake-up irq handler + * + * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ <snip> + +static int __init pcs_omap_init(void) +{ + platform_driver_register(&pcs_omap_soc_driver); + platform_driver_register(&pcs_omap_driver); + + return 0; +} +module_init(pcs_omap_init); It seems this has to be moved to an earlier place (e.g. subsys_initcall) else the pinctrl core fails to find the pinctrl device at the device creation time and bails out with -EPROBE_DEFER. Also, that device is never created again, so -EPROBE_DEFER doesn't seem to work there. The code i'm talking about is in dt_to_map_one_config() http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/pinctrl/devicetree.c#n109 + +static void __exit pcs_omap_exit(void) +{ + platform_driver_unregister(&pcs_omap_driver); + platform_driver_unregister(&pcs_omap_soc_driver); +} +module_exit(pcs_omap_exit); + +MODULE_ALIAS("platform: pinctrl-single-omap"); +MODULE_AUTHOR("Texas Instruments Inc."); +MODULE_DESCRIPTION("pinctrl-single-omap driver"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/platform_data/pinctrl-single-omap.h b/include/linux/platform_data/pinctrl-single-omap.h new file mode 100644 index 0000000..bd92efc --- /dev/null +++ b/include/linux/platform_data/pinctrl-single-omap.h @@ -0,0 +1,4 @@ +struct pcs_omap_pdata { + int irq; + void (*reconfigure_io_chain)(void); +}; -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
