From: Kishon Vijay Abraham I <kishon@ti.com> To: <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: <kishon@ti.com>, <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 1/5] extcon: Add an API to get extcon device from dt node Date: Mon, 3 Jun 2013 21:43:36 +0530 [thread overview] Message-ID: <1370276020-17446-2-git-send-email-kishon@ti.com> (raw) In-Reply-To: <1370276020-17446-1-git-send-email-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> --- drivers/extcon/extcon-class.c | 40 ++++++++++++++++++++++++++++++++++++++++ include/linux/extcon.h | 8 ++++++++ 2 files changed, 48 insertions(+) diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index 60adc04..265d549 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -31,6 +31,7 @@ #include <linux/extcon.h> #include <linux/slab.h> #include <linux/sysfs.h> +#include <linux/of_platform.h> /* * extcon_cable_name suggests the standard cable names for commonly used @@ -392,6 +393,45 @@ int extcon_set_cable_state(struct extcon_dev *edev, } EXPORT_SYMBOL_GPL(extcon_set_cable_state); +struct extcon_dev *of_extcon_get_extcon_dev(struct device *dev, int index) +{ + struct class_dev_iter iter; + struct device *extcon_dev; + struct device_node *node; + 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); + } + + class_dev_iter_init(&iter, extcon_class, NULL, NULL); + while ((extcon_dev = class_dev_iter_next(&iter))) { + if (extcon_dev->parent != &extcon_parent_dev->dev) + continue; + + class_dev_iter_exit(&iter); + return dev_get_drvdata(extcon_dev); + } + + class_dev_iter_exit(&iter); + return ERR_PTR(-ENODEV); +} +EXPORT_SYMBOL_GPL(of_extcon_get_extcon_dev); + /** * extcon_get_extcon_dev() - Get the extcon device instance from the name * @extcon_name: The extcon name provided with extcon_dev_register() diff --git a/include/linux/extcon.h b/include/linux/extcon.h index fcb51c8..3858bb9 100644 --- a/include/linux/extcon.h +++ b/include/linux/extcon.h @@ -182,6 +182,8 @@ struct extcon_specific_cable_nb { */ extern int extcon_dev_register(struct extcon_dev *edev, struct device *dev); extern void extcon_dev_unregister(struct extcon_dev *edev); +extern struct extcon_dev *of_extcon_get_extcon_dev(struct device *dev, + int index); extern struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name); /* @@ -292,6 +294,12 @@ static inline int extcon_set_cable_state(struct extcon_dev *edev, return 0; } +static inline struct extcon_dev *of_extcon_get_extcon_dev(struct device *dev, + int index) +{ + return NULL; +} + static inline struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name) { return NULL; -- 1.7.10.4
WARNING: multiple messages have this Message-ID (diff)
From: Kishon Vijay Abraham I <kishon-l0cyMroinI0@public.gmane.org> To: 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, kishon-l0cyMroinI0@public.gmane.org, grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, benoit.cousson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org Subject: [PATCH 1/5] extcon: Add an API to get extcon device from dt node Date: Mon, 3 Jun 2013 21:43:36 +0530 [thread overview] Message-ID: <1370276020-17446-2-git-send-email-kishon@ti.com> (raw) In-Reply-To: <1370276020-17446-1-git-send-email-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> --- drivers/extcon/extcon-class.c | 40 ++++++++++++++++++++++++++++++++++++++++ include/linux/extcon.h | 8 ++++++++ 2 files changed, 48 insertions(+) diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index 60adc04..265d549 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -31,6 +31,7 @@ #include <linux/extcon.h> #include <linux/slab.h> #include <linux/sysfs.h> +#include <linux/of_platform.h> /* * extcon_cable_name suggests the standard cable names for commonly used @@ -392,6 +393,45 @@ int extcon_set_cable_state(struct extcon_dev *edev, } EXPORT_SYMBOL_GPL(extcon_set_cable_state); +struct extcon_dev *of_extcon_get_extcon_dev(struct device *dev, int index) +{ + struct class_dev_iter iter; + struct device *extcon_dev; + struct device_node *node; + 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); + } + + class_dev_iter_init(&iter, extcon_class, NULL, NULL); + while ((extcon_dev = class_dev_iter_next(&iter))) { + if (extcon_dev->parent != &extcon_parent_dev->dev) + continue; + + class_dev_iter_exit(&iter); + return dev_get_drvdata(extcon_dev); + } + + class_dev_iter_exit(&iter); + return ERR_PTR(-ENODEV); +} +EXPORT_SYMBOL_GPL(of_extcon_get_extcon_dev); + /** * extcon_get_extcon_dev() - Get the extcon device instance from the name * @extcon_name: The extcon name provided with extcon_dev_register() diff --git a/include/linux/extcon.h b/include/linux/extcon.h index fcb51c8..3858bb9 100644 --- a/include/linux/extcon.h +++ b/include/linux/extcon.h @@ -182,6 +182,8 @@ struct extcon_specific_cable_nb { */ extern int extcon_dev_register(struct extcon_dev *edev, struct device *dev); extern void extcon_dev_unregister(struct extcon_dev *edev); +extern struct extcon_dev *of_extcon_get_extcon_dev(struct device *dev, + int index); extern struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name); /* @@ -292,6 +294,12 @@ static inline int extcon_set_cable_state(struct extcon_dev *edev, return 0; } +static inline struct extcon_dev *of_extcon_get_extcon_dev(struct device *dev, + int index) +{ + return NULL; +} + static inline struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name) { return NULL; -- 1.7.10.4
next prev parent reply other threads:[~2013-06-03 16:16 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 ` Kishon Vijay Abraham I [this message] 2013-06-03 16:13 ` [PATCH 1/5] extcon: Add an API to get extcon device from dt node Kishon Vijay Abraham I 2013-06-12 1:28 ` Chanwoo Choi 2013-06-12 1:39 ` [PATCH] " Chanwoo Choi 2013-06-12 1:39 ` 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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