From: Chanwoo Choi <cw00.choi@samsung.com> To: kishon@ti.com, myungjoo.ham@samsung.com, cw00.choi@samsung.com, balbi@ti.com, devicetree-discuss@lists.ozlabs.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-omap@vger.kernel.org Cc: grant.likely@linaro.org, rob.herring@calxeda.com, rob@landley.net, gregkh@linuxfoundation.org, benoit.cousson@linaro.org, anish198519851985@gmail.com, pmeerw@pmeerw.net Subject: [PATCH] extcon: Add an API to get extcon device from dt node Date: Wed, 12 Jun 2013 10:39:09 +0900 [thread overview] Message-ID: <1371001149-16906-1-git-send-email-cw00.choi@samsung.com> (raw) In-Reply-To: <1370276020-17446-2-git-send-email-kishon@ti.com> From: Kishon Vijay Abraham I <kishon@ti.com> Added an API of_extcon_get_extcon_dev() to be used by drivers to get extcon device in the case of dt boot (this can be used instead of extcon_get_extcon_dev()). Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> --- drivers/extcon/Makefile | 3 +++ drivers/extcon/of-extcon.c | 56 ++++++++++++++++++++++++++++++++++++++++ include/linux/extcon/of-extcon.h | 30 +++++++++++++++++++++ 3 files changed, 89 insertions(+) create mode 100644 drivers/extcon/of-extcon.c create mode 100644 include/linux/extcon/of-extcon.h diff --git a/drivers/extcon/Makefile b/drivers/extcon/Makefile index 540e2c3..39cdf95 100644 --- a/drivers/extcon/Makefile +++ b/drivers/extcon/Makefile @@ -2,9 +2,12 @@ # Makefile for external connector class (extcon) devices # +obj-$(CONFIG_OF) += of-extcon.o + obj-$(CONFIG_EXTCON) += extcon-class.o obj-$(CONFIG_EXTCON_GPIO) += extcon-gpio.o obj-$(CONFIG_EXTCON_ADC_JACK) += extcon-adc-jack.o + obj-$(CONFIG_EXTCON_MAX77693) += extcon-max77693.o obj-$(CONFIG_EXTCON_MAX8997) += extcon-max8997.o obj-$(CONFIG_EXTCON_ARIZONA) += extcon-arizona.o diff --git a/drivers/extcon/of-extcon.c b/drivers/extcon/of-extcon.c new file mode 100644 index 0000000..29f82b4 --- /dev/null +++ b/drivers/extcon/of-extcon.c @@ -0,0 +1,56 @@ +/* + * OF helpers for External connector (extcon) framework + * + * Copyright (C) 2013 Texas Instruments, Inc. + * Kishon Vijay Abraham I <kishon@ti.com> + * + * Copyright (C) 2013 Samsung Electronics + * Chanwoo Choi <cw00.choi@samsung.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. + */ + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/extcon.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/extcon/of-extcon.h> + +struct extcon_dev *of_extcon_get_extcon_dev(struct device *dev, int index) +{ + struct device_node *node; + struct extcon_dev *edev; + struct platform_device *extcon_parent_dev; + + if (!dev->of_node) { + dev_dbg(dev, "device does not have a device node entry\n"); + return ERR_PTR(-EINVAL); + } + + node = of_parse_phandle(dev->of_node, "extcon", index); + if (!node) { + dev_dbg(dev, "failed to get phandle in %s node\n", + dev->of_node->full_name); + return ERR_PTR(-ENODEV); + } + + extcon_parent_dev = of_find_device_by_node(node); + if (!extcon_parent_dev) { + dev_dbg(dev, "unable to find device by node\n"); + return ERR_PTR(-EPROBE_DEFER); + } + + edev = extcon_get_extcon_dev(dev_name(&extcon_parent_dev->dev)); + if (!edev) { + dev_dbg(dev, "unable to get extcon device : %s\n", + dev_name(&extcon_parent_dev->dev)); + return ERR_PTR(-ENODEV); + } + + return edev; +} +EXPORT_SYMBOL_GPL(of_extcon_get_extcon_dev); diff --git a/include/linux/extcon/of-extcon.h b/include/linux/extcon/of-extcon.h new file mode 100644 index 0000000..77d01ba --- /dev/null +++ b/include/linux/extcon/of-extcon.h @@ -0,0 +1,30 @@ +/* + * OF helpers for External connector (extcon) framework + * + * Copyright (C) 2013 Texas Instruments, Inc. + * Kishon Vijay Abraham I <kishon@ti.com> + * + * Copyright (C) 2013 Samsung Electronics + * Chanwoo Choi <cw00.choi@samsung.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. + */ + +#ifndef __LINUX_OF_EXTCON_H +#define __LINUX_OF_EXTCON_H + +#if defined(CONFIG_OF) +extern struct extcon_dev + *of_extcon_get_extcon_dev(struct device *dev, int index); +#else +static inline struct extcon_dev + *of_extcon_get_extcon_dev(struct device *dev, int index); +{ + return NULL; +} +#endif /* CONFIG_OF */ + +#endif /* __LINUX_OF_EXTCON_H */ -- 1.8.0
WARNING: multiple messages have this Message-ID (diff)
From: Chanwoo Choi <cw00.choi-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> To: kishon-l0cyMroinI0@public.gmane.org, myungjoo.ham-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org, cw00.choi-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org, balbi-l0cyMroinI0@public.gmane.org, devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: pmeerw-jW+XmwGofnusTnJN9+BGXg@public.gmane.org, anish198519851985-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org, rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org, grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, benoit.cousson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org Subject: [PATCH] extcon: Add an API to get extcon device from dt node Date: Wed, 12 Jun 2013 10:39:09 +0900 [thread overview] Message-ID: <1371001149-16906-1-git-send-email-cw00.choi@samsung.com> (raw) In-Reply-To: <1370276020-17446-2-git-send-email-kishon-l0cyMroinI0@public.gmane.org> From: Kishon Vijay Abraham I <kishon-l0cyMroinI0@public.gmane.org> Added an API of_extcon_get_extcon_dev() to be used by drivers to get extcon device in the case of dt boot (this can be used instead of extcon_get_extcon_dev()). Signed-off-by: Kishon Vijay Abraham I <kishon-l0cyMroinI0@public.gmane.org> Signed-off-by: Chanwoo Choi <cw00.choi-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> Signed-off-by: Myungjoo Ham <myungjoo.ham-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> --- drivers/extcon/Makefile | 3 +++ drivers/extcon/of-extcon.c | 56 ++++++++++++++++++++++++++++++++++++++++ include/linux/extcon/of-extcon.h | 30 +++++++++++++++++++++ 3 files changed, 89 insertions(+) create mode 100644 drivers/extcon/of-extcon.c create mode 100644 include/linux/extcon/of-extcon.h diff --git a/drivers/extcon/Makefile b/drivers/extcon/Makefile index 540e2c3..39cdf95 100644 --- a/drivers/extcon/Makefile +++ b/drivers/extcon/Makefile @@ -2,9 +2,12 @@ # Makefile for external connector class (extcon) devices # +obj-$(CONFIG_OF) += of-extcon.o + obj-$(CONFIG_EXTCON) += extcon-class.o obj-$(CONFIG_EXTCON_GPIO) += extcon-gpio.o obj-$(CONFIG_EXTCON_ADC_JACK) += extcon-adc-jack.o + obj-$(CONFIG_EXTCON_MAX77693) += extcon-max77693.o obj-$(CONFIG_EXTCON_MAX8997) += extcon-max8997.o obj-$(CONFIG_EXTCON_ARIZONA) += extcon-arizona.o diff --git a/drivers/extcon/of-extcon.c b/drivers/extcon/of-extcon.c new file mode 100644 index 0000000..29f82b4 --- /dev/null +++ b/drivers/extcon/of-extcon.c @@ -0,0 +1,56 @@ +/* + * OF helpers for External connector (extcon) framework + * + * Copyright (C) 2013 Texas Instruments, Inc. + * Kishon Vijay Abraham I <kishon-l0cyMroinI0@public.gmane.org> + * + * Copyright (C) 2013 Samsung Electronics + * Chanwoo Choi <cw00.choi-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> + * + * 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. + */ + +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/extcon.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/extcon/of-extcon.h> + +struct extcon_dev *of_extcon_get_extcon_dev(struct device *dev, int index) +{ + struct device_node *node; + struct extcon_dev *edev; + struct platform_device *extcon_parent_dev; + + if (!dev->of_node) { + dev_dbg(dev, "device does not have a device node entry\n"); + return ERR_PTR(-EINVAL); + } + + node = of_parse_phandle(dev->of_node, "extcon", index); + if (!node) { + dev_dbg(dev, "failed to get phandle in %s node\n", + dev->of_node->full_name); + return ERR_PTR(-ENODEV); + } + + extcon_parent_dev = of_find_device_by_node(node); + if (!extcon_parent_dev) { + dev_dbg(dev, "unable to find device by node\n"); + return ERR_PTR(-EPROBE_DEFER); + } + + edev = extcon_get_extcon_dev(dev_name(&extcon_parent_dev->dev)); + if (!edev) { + dev_dbg(dev, "unable to get extcon device : %s\n", + dev_name(&extcon_parent_dev->dev)); + return ERR_PTR(-ENODEV); + } + + return edev; +} +EXPORT_SYMBOL_GPL(of_extcon_get_extcon_dev); diff --git a/include/linux/extcon/of-extcon.h b/include/linux/extcon/of-extcon.h new file mode 100644 index 0000000..77d01ba --- /dev/null +++ b/include/linux/extcon/of-extcon.h @@ -0,0 +1,30 @@ +/* + * OF helpers for External connector (extcon) framework + * + * Copyright (C) 2013 Texas Instruments, Inc. + * Kishon Vijay Abraham I <kishon-l0cyMroinI0@public.gmane.org> + * + * Copyright (C) 2013 Samsung Electronics + * Chanwoo Choi <cw00.choi-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> + * + * 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. + */ + +#ifndef __LINUX_OF_EXTCON_H +#define __LINUX_OF_EXTCON_H + +#if defined(CONFIG_OF) +extern struct extcon_dev + *of_extcon_get_extcon_dev(struct device *dev, int index); +#else +static inline struct extcon_dev + *of_extcon_get_extcon_dev(struct device *dev, int index); +{ + return NULL; +} +#endif /* CONFIG_OF */ + +#endif /* __LINUX_OF_EXTCON_H */ -- 1.8.0
next prev parent reply other threads:[~2013-06-12 1:40 UTC|newest] Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top 2013-06-03 16:13 [PATCH 0/5] dwc3: omap: adapt dwc3 to use extcon framework Kishon Vijay Abraham I 2013-06-03 16:13 ` Kishon Vijay Abraham I 2013-06-03 16:13 ` [PATCH 1/5] extcon: Add an API to get extcon device from dt node Kishon Vijay Abraham I 2013-06-03 16:13 ` Kishon Vijay Abraham I 2013-06-12 1:28 ` Chanwoo Choi 2013-06-12 1:39 ` Chanwoo Choi [this message] 2013-06-12 1:39 ` [PATCH] " Chanwoo Choi 2013-06-12 5:16 ` anish singh 2013-06-12 6:55 ` Kishon Vijay Abraham I 2013-06-12 6:55 ` Kishon Vijay Abraham I 2013-06-14 5:08 ` Chanwoo Choi 2013-06-14 7:15 ` [PATCH v2] " Chanwoo Choi 2013-06-14 8:36 ` Kishon Vijay Abraham I 2013-06-14 8:36 ` Kishon Vijay Abraham I 2013-06-14 8:51 ` Chanwoo Choi 2013-06-19 5:26 ` [PATCH v3] " Chanwoo Choi 2013-06-03 16:13 ` [PATCH 2/5] extcon: Kconfig: Make extcon config type as bool Kishon Vijay Abraham I 2013-06-03 16:13 ` Kishon Vijay Abraham I 2013-06-03 16:13 ` [PATCH 3/5] extcon: add EXPORT_SYMBOL_GPL for exported functions Kishon Vijay Abraham I 2013-06-03 16:13 ` Kishon Vijay Abraham I 2013-06-03 16:13 ` [PATCH 4/5] usb: dwc3: omap: improve error handling of dwc3_omap_probe Kishon Vijay Abraham I 2013-06-03 16:13 ` Kishon Vijay Abraham I 2013-06-03 16:13 ` [v3 PATCH 5/5] usb: dwc3: use extcon fwrk to receive connect/disconnect Kishon Vijay Abraham I 2013-06-03 16:13 ` Kishon Vijay Abraham I 2013-06-14 13:10 ` [PATCH v4] " Kishon Vijay Abraham I 2013-06-14 13:10 ` Kishon Vijay Abraham I 2013-06-17 4:09 ` Chanwoo Choi 2013-06-20 8:54 ` Kishon Vijay Abraham I 2013-06-20 8:54 ` Kishon Vijay Abraham I 2013-06-21 11:58 ` [PATCH v5] " Kishon Vijay Abraham I 2013-06-21 11:58 ` Kishon Vijay Abraham I 2013-06-24 11:12 ` Chanwoo Choi 2013-06-24 11:12 ` Chanwoo Choi 2013-06-04 14:23 ` [PATCH 0/5] dwc3: omap: adapt dwc3 to use extcon framework Ruchika Kharwar 2013-06-04 14:23 ` Ruchika Kharwar 2013-06-05 4:49 ` Kishon Vijay Abraham I 2013-06-05 4:49 ` Kishon Vijay Abraham I 2013-06-12 0:54 ` Chanwoo Choi [not found] ` <51B7C6E0.3000603-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org> 2013-06-12 0:58 ` Chanwoo Choi 2013-06-12 0:59 ` Chanwoo Choi
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