From: Roger Quadros <rogerq@ti.com> To: <dmitry.torokhov@gmail.com> Cc: <rydberg@euromail.se>, <balbi@ti.com>, <dmurphy@ti.com>, <mugunthanvnm@ti.com>, <nsekhar@ti.com>, <linux-input@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>, Roger Quadros <rogerq@ti.com> Subject: [PATCH v3 7/7] Input: pixcir_i2c_ts: Add device tree support Date: Wed, 30 Apr 2014 15:36:32 +0300 [thread overview] Message-ID: <1398861392-8959-8-git-send-email-rogerq@ti.com> (raw) In-Reply-To: <1398861392-8959-1-git-send-email-rogerq@ti.com> Provide device tree support and binding information. Also provide support for a new chip "pixcir_tangoc". Signed-off-by: Roger Quadros <rogerq@ti.com> --- .../bindings/input/touchscreen/pixcir_i2c_ts.txt | 26 ++++++++ .../devicetree/bindings/vendor-prefixes.txt | 1 + drivers/input/touchscreen/pixcir_i2c_ts.c | 78 ++++++++++++++++++++++ 3 files changed, 105 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt diff --git a/Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt b/Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt new file mode 100644 index 0000000..0ab9505 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt @@ -0,0 +1,26 @@ +* Pixcir I2C touchscreen controllers + +Required properties: +- compatible: must be "pixcir,pixcir_ts" or "pixcir,pixcir_tangoc" +- reg: I2C address of the chip +- interrupts: interrupt to which the chip is connected +- attb-gpio: GPIO connected to the ATTB line of the chip +- x-size: horizontal resolution of touchscreen +- y-size: vertical resolution of touchscreen + +Example: + + i2c@00000000 { + /* ... */ + + pixcir_ts@5c { + compatible = "pixcir,pixcir_ts"; + reg = <0x5c>; + interrupts = <2 0>; + attb-gpio = <&gpf 2 0 2>; + x-size = <800>; + y-size = <600>; + }; + + /* ... */ + }; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index abc3080..2270ebe 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -94,6 +94,7 @@ panasonic Panasonic Corporation phytec PHYTEC Messtechnik GmbH picochip Picochip Ltd plathome Plat'Home Co., Ltd. +pixcir PIXCIR MICROELECTRONICS Co., Ltd powervr PowerVR (deprecated, use img) qca Qualcomm Atheros, Inc. qcom Qualcomm Technologies, Inc diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c index ea31e20..33f116c 100644 --- a/drivers/input/touchscreen/pixcir_i2c_ts.c +++ b/drivers/input/touchscreen/pixcir_i2c_ts.c @@ -26,6 +26,9 @@ #include <linux/input/mt.h> #include <linux/input/pixcir_ts.h> #include <linux/gpio.h> +#include <linux/of.h> +#include <linux/of_gpio.h> +#include <linux/of_device.h> #define PIXCIR_MAX_SLOTS 5 /* Max fingers supported by driver */ @@ -418,16 +421,70 @@ unlock: static SIMPLE_DEV_PM_OPS(pixcir_dev_pm_ops, pixcir_i2c_ts_suspend, pixcir_i2c_ts_resume); +#ifdef CONFIG_OF +static const struct of_device_id pixcir_of_match[]; + +static struct pixcir_ts_platform_data *pixcir_parse_dt(struct device *dev) +{ + struct pixcir_ts_platform_data *pdata; + struct device_node *np = dev->of_node; + + const struct of_device_id *match; + + match = of_match_device(of_match_ptr(pixcir_of_match), dev); + if (!match) + return ERR_PTR(-EINVAL); + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return ERR_PTR(-ENOMEM); + + pdata->chip = *(const struct pixcir_i2c_chip_data *)match->data; + + pdata->gpio_attb = of_get_named_gpio(np, "attb-gpio", 0); + /* gpio_attb validity is checked in probe */ + + if (of_property_read_u32(np, "x-size", &pdata->x_max)) { + dev_err(dev, "Failed to get x-size property\n"); + return ERR_PTR(-EINVAL); + } + pdata->x_max -= 1; + + if (of_property_read_u32(np, "y-size", &pdata->y_max)) { + dev_err(dev, "Failed to get y-size property\n"); + return ERR_PTR(-EINVAL); + } + pdata->y_max -= 1; + + dev_dbg(dev, "%s: x %d, y %d, gpio %d\n", __func__, + pdata->x_max + 1, pdata->y_max + 1, pdata->gpio_attb); + + return pdata; +} +#else +static struct pixcir_ts_platform_data *pixcir_parse_dt(struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif + static int pixcir_i2c_ts_probe(struct i2c_client *client, const struct i2c_device_id *id) { const struct pixcir_ts_platform_data *pdata = dev_get_platdata(&client->dev); struct device *dev = &client->dev; + struct device_node *np = dev->of_node; struct pixcir_i2c_ts_data *tsdata; struct input_dev *input; int error; + if (np && !pdata) { + pdata = pixcir_parse_dt(dev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } + if (!pdata) { dev_err(&client->dev, "platform data not defined\n"); return -EINVAL; @@ -537,15 +594,36 @@ static int pixcir_i2c_ts_remove(struct i2c_client *client) static const struct i2c_device_id pixcir_i2c_ts_id[] = { { "pixcir_ts", 0 }, + { "pixcir_tangoc", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, pixcir_i2c_ts_id); +#ifdef CONFIG_OF +static const struct pixcir_i2c_chip_data pixcir_ts_data = { + .max_fingers = 2, + /* no hw id support */ +}; + +static const struct pixcir_i2c_chip_data pixcir_tangoc_data = { + .max_fingers = 5, + .has_hw_ids = true, +}; + +static const struct of_device_id pixcir_of_match[] = { + { .compatible = "pixcir,pixcir_ts", .data = &pixcir_ts_data }, + { .compatible = "pixcir,pixcir_tangoc", .data = &pixcir_tangoc_data }, + { } +}; +MODULE_DEVICE_TABLE(of, pixcir_of_match); +#endif + static struct i2c_driver pixcir_i2c_ts_driver = { .driver = { .owner = THIS_MODULE, .name = "pixcir_ts", .pm = &pixcir_dev_pm_ops, + .of_match_table = of_match_ptr(pixcir_of_match), }, .probe = pixcir_i2c_ts_probe, .remove = pixcir_i2c_ts_remove, -- 1.8.3.2
WARNING: multiple messages have this Message-ID (diff)
From: Roger Quadros <rogerq@ti.com> To: dmitry.torokhov@gmail.com Cc: rydberg@euromail.se, balbi@ti.com, dmurphy@ti.com, mugunthanvnm@ti.com, nsekhar@ti.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Roger Quadros <rogerq@ti.com> Subject: [PATCH v3 7/7] Input: pixcir_i2c_ts: Add device tree support Date: Wed, 30 Apr 2014 15:36:32 +0300 [thread overview] Message-ID: <1398861392-8959-8-git-send-email-rogerq@ti.com> (raw) In-Reply-To: <1398861392-8959-1-git-send-email-rogerq@ti.com> Provide device tree support and binding information. Also provide support for a new chip "pixcir_tangoc". Signed-off-by: Roger Quadros <rogerq@ti.com> --- .../bindings/input/touchscreen/pixcir_i2c_ts.txt | 26 ++++++++ .../devicetree/bindings/vendor-prefixes.txt | 1 + drivers/input/touchscreen/pixcir_i2c_ts.c | 78 ++++++++++++++++++++++ 3 files changed, 105 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt diff --git a/Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt b/Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt new file mode 100644 index 0000000..0ab9505 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/pixcir_i2c_ts.txt @@ -0,0 +1,26 @@ +* Pixcir I2C touchscreen controllers + +Required properties: +- compatible: must be "pixcir,pixcir_ts" or "pixcir,pixcir_tangoc" +- reg: I2C address of the chip +- interrupts: interrupt to which the chip is connected +- attb-gpio: GPIO connected to the ATTB line of the chip +- x-size: horizontal resolution of touchscreen +- y-size: vertical resolution of touchscreen + +Example: + + i2c@00000000 { + /* ... */ + + pixcir_ts@5c { + compatible = "pixcir,pixcir_ts"; + reg = <0x5c>; + interrupts = <2 0>; + attb-gpio = <&gpf 2 0 2>; + x-size = <800>; + y-size = <600>; + }; + + /* ... */ + }; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index abc3080..2270ebe 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -94,6 +94,7 @@ panasonic Panasonic Corporation phytec PHYTEC Messtechnik GmbH picochip Picochip Ltd plathome Plat'Home Co., Ltd. +pixcir PIXCIR MICROELECTRONICS Co., Ltd powervr PowerVR (deprecated, use img) qca Qualcomm Atheros, Inc. qcom Qualcomm Technologies, Inc diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c index ea31e20..33f116c 100644 --- a/drivers/input/touchscreen/pixcir_i2c_ts.c +++ b/drivers/input/touchscreen/pixcir_i2c_ts.c @@ -26,6 +26,9 @@ #include <linux/input/mt.h> #include <linux/input/pixcir_ts.h> #include <linux/gpio.h> +#include <linux/of.h> +#include <linux/of_gpio.h> +#include <linux/of_device.h> #define PIXCIR_MAX_SLOTS 5 /* Max fingers supported by driver */ @@ -418,16 +421,70 @@ unlock: static SIMPLE_DEV_PM_OPS(pixcir_dev_pm_ops, pixcir_i2c_ts_suspend, pixcir_i2c_ts_resume); +#ifdef CONFIG_OF +static const struct of_device_id pixcir_of_match[]; + +static struct pixcir_ts_platform_data *pixcir_parse_dt(struct device *dev) +{ + struct pixcir_ts_platform_data *pdata; + struct device_node *np = dev->of_node; + + const struct of_device_id *match; + + match = of_match_device(of_match_ptr(pixcir_of_match), dev); + if (!match) + return ERR_PTR(-EINVAL); + + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return ERR_PTR(-ENOMEM); + + pdata->chip = *(const struct pixcir_i2c_chip_data *)match->data; + + pdata->gpio_attb = of_get_named_gpio(np, "attb-gpio", 0); + /* gpio_attb validity is checked in probe */ + + if (of_property_read_u32(np, "x-size", &pdata->x_max)) { + dev_err(dev, "Failed to get x-size property\n"); + return ERR_PTR(-EINVAL); + } + pdata->x_max -= 1; + + if (of_property_read_u32(np, "y-size", &pdata->y_max)) { + dev_err(dev, "Failed to get y-size property\n"); + return ERR_PTR(-EINVAL); + } + pdata->y_max -= 1; + + dev_dbg(dev, "%s: x %d, y %d, gpio %d\n", __func__, + pdata->x_max + 1, pdata->y_max + 1, pdata->gpio_attb); + + return pdata; +} +#else +static struct pixcir_ts_platform_data *pixcir_parse_dt(struct device *dev) +{ + return ERR_PTR(-EINVAL); +} +#endif + static int pixcir_i2c_ts_probe(struct i2c_client *client, const struct i2c_device_id *id) { const struct pixcir_ts_platform_data *pdata = dev_get_platdata(&client->dev); struct device *dev = &client->dev; + struct device_node *np = dev->of_node; struct pixcir_i2c_ts_data *tsdata; struct input_dev *input; int error; + if (np && !pdata) { + pdata = pixcir_parse_dt(dev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + } + if (!pdata) { dev_err(&client->dev, "platform data not defined\n"); return -EINVAL; @@ -537,15 +594,36 @@ static int pixcir_i2c_ts_remove(struct i2c_client *client) static const struct i2c_device_id pixcir_i2c_ts_id[] = { { "pixcir_ts", 0 }, + { "pixcir_tangoc", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, pixcir_i2c_ts_id); +#ifdef CONFIG_OF +static const struct pixcir_i2c_chip_data pixcir_ts_data = { + .max_fingers = 2, + /* no hw id support */ +}; + +static const struct pixcir_i2c_chip_data pixcir_tangoc_data = { + .max_fingers = 5, + .has_hw_ids = true, +}; + +static const struct of_device_id pixcir_of_match[] = { + { .compatible = "pixcir,pixcir_ts", .data = &pixcir_ts_data }, + { .compatible = "pixcir,pixcir_tangoc", .data = &pixcir_tangoc_data }, + { } +}; +MODULE_DEVICE_TABLE(of, pixcir_of_match); +#endif + static struct i2c_driver pixcir_i2c_ts_driver = { .driver = { .owner = THIS_MODULE, .name = "pixcir_ts", .pm = &pixcir_dev_pm_ops, + .of_match_table = of_match_ptr(pixcir_of_match), }, .probe = pixcir_i2c_ts_probe, .remove = pixcir_i2c_ts_remove, -- 1.8.3.2
next prev parent reply other threads:[~2014-04-30 12:37 UTC|newest] Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-04-30 12:36 [PATCH v3 0/7] Input: pixcir_i2c_ts: Add Type-B Multi-touch and DT support Roger Quadros 2014-04-30 12:36 ` Roger Quadros 2014-04-30 12:36 ` [PATCH v3 1/7] Input: pixcir_i2c_ts: Use devres managed resource allocations Roger Quadros 2014-04-30 12:36 ` Roger Quadros 2014-04-30 16:30 ` Dmitry Torokhov 2014-04-30 16:30 ` Dmitry Torokhov 2014-05-05 8:44 ` Roger Quadros 2014-05-05 8:44 ` Roger Quadros 2014-04-30 12:36 ` [PATCH v3 2/7] Input: pixcir_i2c_ts: Initialize interrupt mode and power mode Roger Quadros 2014-04-30 12:36 ` Roger Quadros 2014-04-30 16:29 ` Dmitry Torokhov 2014-05-05 8:42 ` Roger Quadros 2014-05-05 8:42 ` Roger Quadros 2014-04-30 12:36 ` [PATCH v3 3/7] Input: pixcir_i2c_ts: Get rid of pdata->attb_read_val() Roger Quadros 2014-04-30 12:36 ` Roger Quadros 2014-04-30 12:36 ` [PATCH v3 4/7] Input: pixcir_i2c_ts: Use Type-B Multi-Touch protocol Roger Quadros 2014-04-30 12:36 ` Roger Quadros 2014-04-30 12:36 ` [PATCH v3 5/7] Input: pixcir_i2c_ts: support upto 5 fingers and hardware provided tracking IDs Roger Quadros 2014-04-30 12:36 ` Roger Quadros 2014-04-30 12:36 ` [PATCH v3 6/7] Input: pixcir_i2c_ts: Implement wakeup from suspend Roger Quadros 2014-04-30 12:36 ` Roger Quadros 2014-04-30 12:36 ` Roger Quadros [this message] 2014-04-30 12:36 ` [PATCH v3 7/7] Input: pixcir_i2c_ts: Add device tree support Roger Quadros
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