From aaa27982b3bcc3cce6a1d835673adccd75903a2e Mon Sep 17 00:00:00 2001 From: Andrew Duggan Date: Thu, 10 Mar 2016 15:48:32 -0800 Subject: Input: synaptics-rmi4 - add device tree support for 2d sensors and F11 2D sensors have several parameter which can be set in the platform data. This patch adds support for getting those values from devicetree. Signed-off-by: Andrew Duggan Tested-by: Benjamin Tissoires Tested-by: Linus Walleij Tested-by: Bjorn Andersson Signed-off-by: Dmitry Torokhov --- drivers/input/rmi4/rmi_2d_sensor.c | 108 +++++++++++++++++++++++++++++++++++++ drivers/input/rmi4/rmi_2d_sensor.h | 3 ++ drivers/input/rmi4/rmi_f11.c | 7 ++- 3 files changed, 117 insertions(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/rmi4/rmi_2d_sensor.c b/drivers/input/rmi4/rmi_2d_sensor.c index 8f48647..e97bd7f 100644 --- a/drivers/input/rmi4/rmi_2d_sensor.c +++ b/drivers/input/rmi4/rmi_2d_sensor.c @@ -219,3 +219,111 @@ int rmi_2d_sensor_configure_input(struct rmi_function *fn, return 0; } EXPORT_SYMBOL_GPL(rmi_2d_sensor_configure_input); + +#ifdef CONFIG_OF +int rmi_2d_sensor_of_probe(struct device *dev, + struct rmi_2d_sensor_platform_data *pdata) +{ + int retval; + u32 val; + + pdata->axis_align.swap_axes = of_property_read_bool(dev->of_node, + "touchscreen-swapped-x-y"); + + pdata->axis_align.flip_x = of_property_read_bool(dev->of_node, + "touchscreen-inverted-x"); + + pdata->axis_align.flip_y = of_property_read_bool(dev->of_node, + "touchscreen-inverted-y"); + + retval = rmi_of_property_read_u32(dev, &val, "syna,clip-x-low", 1); + if (retval) + return retval; + + pdata->axis_align.clip_x_low = val; + + retval = rmi_of_property_read_u32(dev, &val, "syna,clip-y-low", 1); + if (retval) + return retval; + + pdata->axis_align.clip_y_low = val; + + retval = rmi_of_property_read_u32(dev, &val, "syna,clip-x-high", 1); + if (retval) + return retval; + + pdata->axis_align.clip_x_high = val; + + retval = rmi_of_property_read_u32(dev, &val, "syna,clip-y-high", 1); + if (retval) + return retval; + + pdata->axis_align.clip_y_high = val; + + retval = rmi_of_property_read_u32(dev, &val, "syna,offset-x", 1); + if (retval) + return retval; + + pdata->axis_align.offset_x = val; + + retval = rmi_of_property_read_u32(dev, &val, "syna,offset-y", 1); + if (retval) + return retval; + + pdata->axis_align.offset_y = val; + + retval = rmi_of_property_read_u32(dev, &val, "syna,delta-x-threshold", + 1); + if (retval) + return retval; + + pdata->axis_align.delta_x_threshold = val; + + retval = rmi_of_property_read_u32(dev, &val, "syna,delta-y-threshold", + 1); + if (retval) + return retval; + + pdata->axis_align.delta_y_threshold = val; + + retval = rmi_of_property_read_u32(dev, (u32 *)&pdata->sensor_type, + "syna,sensor-type", 1); + if (retval) + return retval; + + retval = rmi_of_property_read_u32(dev, &val, "touchscreen-x-mm", 1); + if (retval) + return retval; + + pdata->x_mm = val; + + retval = rmi_of_property_read_u32(dev, &val, "touchscreen-y-mm", 1); + if (retval) + return retval; + + pdata->y_mm = val; + + retval = rmi_of_property_read_u32(dev, &val, + "syna,disable-report-mask", 1); + if (retval) + return retval; + + pdata->disable_report_mask = val; + + retval = rmi_of_property_read_u32(dev, &val, "syna,rezero-wait-ms", + 1); + if (retval) + return retval; + + pdata->rezero_wait = val; + + return 0; +} +#else +inline int rmi_2d_sensor_of_probe(struct device *dev, + struct rmi_2d_sensor_platform_data *pdata) +{ + return -ENODEV; +} +#endif +EXPORT_SYMBOL_GPL(rmi_2d_sensor_of_probe); diff --git a/drivers/input/rmi4/rmi_2d_sensor.h b/drivers/input/rmi4/rmi_2d_sensor.h index 6a715d3..77fcdfe 100644 --- a/drivers/input/rmi4/rmi_2d_sensor.h +++ b/drivers/input/rmi4/rmi_2d_sensor.h @@ -69,6 +69,9 @@ struct rmi_2d_sensor { u8 y_mm; }; +int rmi_2d_sensor_of_probe(struct device *dev, + struct rmi_2d_sensor_platform_data *pdata); + void rmi_2d_sensor_abs_process(struct rmi_2d_sensor *sensor, struct rmi_2d_sensor_abs_object *obj, int slot); diff --git a/drivers/input/rmi4/rmi_f11.c b/drivers/input/rmi4/rmi_f11.c index 948a360b..77a5eb8 100644 --- a/drivers/input/rmi4/rmi_f11.c +++ b/drivers/input/rmi4/rmi_f11.c @@ -1059,8 +1059,13 @@ static int rmi_f11_initialize(struct rmi_function *fn) if (!f11) return -ENOMEM; - if (pdata->sensor_pdata) + if (fn->dev.of_node) { + rc = rmi_2d_sensor_of_probe(&fn->dev, &f11->sensor_pdata); + if (rc) + return rc; + } else if (pdata->sensor_pdata) { f11->sensor_pdata = *pdata->sensor_pdata; + } f11->rezero_wait_ms = f11->sensor_pdata.rezero_wait; -- cgit v1.1