From: Sebastian Reichel <sre@kernel.org> To: Sebastian Reichel <sre@ring0.de>, Dmitry Torokhov <dmitry.torokhov@gmail.com>, Dmitry Torokhov <dtor@mail.ru>, linux-input@vger.kernel.org, Tony Lindgren <tony@atomide.com> Cc: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>, Mark Rutland <mark.rutland@arm.com>, Ian Campbell <ijc+devicetree@hellion.org.uk>, Kumar Gala <galak@codeaurora.org>, devicetree@vger.kernel.org, linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org, Sebastian Reichel <sre@kernel.org> Subject: [PATCHv2 1/5] Input: add common DT binding for touchscreens Date: Sun, 6 Apr 2014 00:26:57 +0200 [thread overview] Message-ID: <1396736821-14395-2-git-send-email-sre@kernel.org> (raw) In-Reply-To: <1396736821-14395-1-git-send-email-sre@kernel.org> Add common DT binding documentation for touchscreen devices and implement input_parse_touchscreen_of_params, which parses the common properties and configures the input device accordingly. Signed-off-by: Sebastian Reichel <sre@kernel.org> --- .../bindings/input/touchscreen/touchscreen.txt | 9 ++++++ drivers/input/input.c | 34 ++++++++++++++++++++++ include/linux/input.h | 8 +++++ 3 files changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt diff --git a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt new file mode 100644 index 0000000..a2ff0a0 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt @@ -0,0 +1,9 @@ +General Touchscreen Properties: + +Optional properties for Touchscreens: + - touchscreen-size-x : horizontal resolution of touchscreen + - touchscreen-size-y : vertical resolution of touchscreen + - touchscreen-max-pressure : maximum reported pressure + - touchscreen-fuzz-x : horizontal noise value of the absolute input device + - touchscreen-fuzz-y : vertical noise value of the absolute input device + - touchscreen-fuzz-pressure : pressure noise value of the absolute input device diff --git a/drivers/input/input.c b/drivers/input/input.c index 1c4c0db..97966d93 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -27,6 +27,7 @@ #include <linux/device.h> #include <linux/mutex.h> #include <linux/rcupdate.h> +#include <linux/of.h> #include "input-compat.h" MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>"); @@ -2398,6 +2399,39 @@ void input_free_minor(unsigned int minor) } EXPORT_SYMBOL(input_free_minor); +#if defined(CONFIG_OF) +/** + * input_parse_touchscreen_of_params - parse common touchscreen DT properties + * @dev: device that should be parsed + * + * This function parses common DT properties for touchscreens and setups the + * input device accordingly. The function keeps previously setuped default + * values if no value is specified via DT. + */ +void input_parse_touchscreen_of_params(struct input_dev *dev) +{ + struct device_node *np = dev->dev.parent->of_node; + struct input_absinfo *absinfo; + + input_alloc_absinfo(dev); + if (!dev->absinfo) + return; + + absinfo = &dev->absinfo[ABS_X]; + of_property_read_u32(np, "touchscreen-size-x", &absinfo->maximum); + of_property_read_u32(np, "touchscreen-fuzz-x", &absinfo->fuzz); + + absinfo = &dev->absinfo[ABS_Y]; + of_property_read_u32(np, "touchscreen-size-y", &absinfo->maximum); + of_property_read_u32(np, "touchscreen-fuzz-y", &absinfo->fuzz); + + absinfo = &dev->absinfo[ABS_PRESSURE]; + of_property_read_u32(np, "touchscreen-max-pressure", &absinfo->maximum); + of_property_read_u32(np, "touchscreen-fuzz-pressure", &absinfo->fuzz); +} +EXPORT_SYMBOL(input_parse_touchscreen_of_params); +#endif + static int __init input_init(void) { int err; diff --git a/include/linux/input.h b/include/linux/input.h index 82ce323..3dc3b1e 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -531,4 +531,12 @@ int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file); int input_ff_create_memless(struct input_dev *dev, void *data, int (*play_effect)(struct input_dev *, void *, struct ff_effect *)); +#if defined(CONFIG_OF) +void input_parse_touchscreen_of_params(struct input_dev *dev); +#else +static inline void input_parse_touchscreen_of_params(struct input_dev *dev) { + return; +} +#endif + #endif -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: Sebastian Reichel <sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> To: Sebastian Reichel <sre-GFxCN5SEZAc@public.gmane.org>, Dmitry Torokhov <dmitry.torokhov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Dmitry Torokhov <dtor-JGs/UdohzUI@public.gmane.org>, linux-input-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> Cc: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>, Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>, Ian Campbell <ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>, Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Sebastian Reichel <sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> Subject: [PATCHv2 1/5] Input: add common DT binding for touchscreens Date: Sun, 6 Apr 2014 00:26:57 +0200 [thread overview] Message-ID: <1396736821-14395-2-git-send-email-sre@kernel.org> (raw) In-Reply-To: <1396736821-14395-1-git-send-email-sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> Add common DT binding documentation for touchscreen devices and implement input_parse_touchscreen_of_params, which parses the common properties and configures the input device accordingly. Signed-off-by: Sebastian Reichel <sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> --- .../bindings/input/touchscreen/touchscreen.txt | 9 ++++++ drivers/input/input.c | 34 ++++++++++++++++++++++ include/linux/input.h | 8 +++++ 3 files changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt diff --git a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt new file mode 100644 index 0000000..a2ff0a0 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.txt @@ -0,0 +1,9 @@ +General Touchscreen Properties: + +Optional properties for Touchscreens: + - touchscreen-size-x : horizontal resolution of touchscreen + - touchscreen-size-y : vertical resolution of touchscreen + - touchscreen-max-pressure : maximum reported pressure + - touchscreen-fuzz-x : horizontal noise value of the absolute input device + - touchscreen-fuzz-y : vertical noise value of the absolute input device + - touchscreen-fuzz-pressure : pressure noise value of the absolute input device diff --git a/drivers/input/input.c b/drivers/input/input.c index 1c4c0db..97966d93 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -27,6 +27,7 @@ #include <linux/device.h> #include <linux/mutex.h> #include <linux/rcupdate.h> +#include <linux/of.h> #include "input-compat.h" MODULE_AUTHOR("Vojtech Pavlik <vojtech-AlSwsSmVLrQ@public.gmane.org>"); @@ -2398,6 +2399,39 @@ void input_free_minor(unsigned int minor) } EXPORT_SYMBOL(input_free_minor); +#if defined(CONFIG_OF) +/** + * input_parse_touchscreen_of_params - parse common touchscreen DT properties + * @dev: device that should be parsed + * + * This function parses common DT properties for touchscreens and setups the + * input device accordingly. The function keeps previously setuped default + * values if no value is specified via DT. + */ +void input_parse_touchscreen_of_params(struct input_dev *dev) +{ + struct device_node *np = dev->dev.parent->of_node; + struct input_absinfo *absinfo; + + input_alloc_absinfo(dev); + if (!dev->absinfo) + return; + + absinfo = &dev->absinfo[ABS_X]; + of_property_read_u32(np, "touchscreen-size-x", &absinfo->maximum); + of_property_read_u32(np, "touchscreen-fuzz-x", &absinfo->fuzz); + + absinfo = &dev->absinfo[ABS_Y]; + of_property_read_u32(np, "touchscreen-size-y", &absinfo->maximum); + of_property_read_u32(np, "touchscreen-fuzz-y", &absinfo->fuzz); + + absinfo = &dev->absinfo[ABS_PRESSURE]; + of_property_read_u32(np, "touchscreen-max-pressure", &absinfo->maximum); + of_property_read_u32(np, "touchscreen-fuzz-pressure", &absinfo->fuzz); +} +EXPORT_SYMBOL(input_parse_touchscreen_of_params); +#endif + static int __init input_init(void) { int err; diff --git a/include/linux/input.h b/include/linux/input.h index 82ce323..3dc3b1e 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -531,4 +531,12 @@ int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file); int input_ff_create_memless(struct input_dev *dev, void *data, int (*play_effect)(struct input_dev *, void *, struct ff_effect *)); +#if defined(CONFIG_OF) +void input_parse_touchscreen_of_params(struct input_dev *dev); +#else +static inline void input_parse_touchscreen_of_params(struct input_dev *dev) { + return; +} +#endif + #endif -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2014-04-05 22:28 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-04-05 22:26 [PATCHv2 0/5] tsc2005 DT binding Sebastian Reichel 2014-04-05 22:26 ` Sebastian Reichel [this message] 2014-04-05 22:26 ` [PATCHv2 1/5] Input: add common DT binding for touchscreens Sebastian Reichel 2014-04-07 16:38 ` Rob Herring 2014-04-07 20:00 ` Sebastian Reichel 2014-04-08 2:53 ` Rob Herring 2014-04-05 22:26 ` [PATCHv2 2/5] Input: tsc2005: use dev_err for error messages Sebastian Reichel 2014-04-05 22:26 ` [PATCHv2 3/5] Input: tsc2005: convert driver to use devm_* Sebastian Reichel 2014-04-05 22:27 ` [PATCHv2 4/5] Input: tsc2005: add DT support Sebastian Reichel 2014-04-05 22:27 ` [PATCHv2 5/5] Documentation: dt: Document TSC2005 DT binding Sebastian Reichel
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=1396736821-14395-2-git-send-email-sre@kernel.org \ --to=sre@kernel.org \ --cc=devicetree@vger.kernel.org \ --cc=dmitry.torokhov@gmail.com \ --cc=dtor@mail.ru \ --cc=galak@codeaurora.org \ --cc=ijc+devicetree@hellion.org.uk \ --cc=linux-input@vger.kernel.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-omap@vger.kernel.org \ --cc=mark.rutland@arm.com \ --cc=pawel.moll@arm.com \ --cc=robh+dt@kernel.org \ --cc=sre@ring0.de \ --cc=tony@atomide.com \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.