From patchwork Fri Aug 5 07:24:31 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 656050 Return-Path: X-Original-To: incoming-imx@patchwork.ozlabs.org Delivered-To: patchwork-incoming-imx@bilbo.ozlabs.org Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2001:1868:205::9]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3s5JKl5pgdz9t0Z for ; Fri, 5 Aug 2016 17:27:23 +1000 (AEST) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1bVZVF-0000p4-R2; Fri, 05 Aug 2016 07:25:09 +0000 Received: from mx1.redhat.com ([209.132.183.28]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1bVZV3-0000Yv-Ac for linux-arm-kernel@lists.infradead.org; Fri, 05 Aug 2016 07:24:59 +0000 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id A153812B6; Fri, 5 Aug 2016 07:24:38 +0000 (UTC) Received: from shalem.localdomain.com (vpn1-6-109.ams2.redhat.com [10.36.6.109]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u757OWnG023377; Fri, 5 Aug 2016 03:24:35 -0400 From: Hans de Goede To: Dmitry Torokhov Subject: [PATCH v3] input: touchscreen: Remove duplicate ft6236 driver Date: Fri, 5 Aug 2016 09:24:31 +0200 Message-Id: <1470381871-4086-2-git-send-email-hdegoede@redhat.com> In-Reply-To: <1470381871-4086-1-git-send-email-hdegoede@redhat.com> References: <1470381871-4086-1-git-send-email-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Fri, 05 Aug 2016 07:24:38 +0000 (UTC) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160805_002457_501973_3FA08047 X-CRM114-Status: GOOD ( 22.69 ) X-Spam-Score: -8.3 (--------) X-Spam-Report: SpamAssassin version 3.4.0 on bombadil.infradead.org summary: Content analysis details: (-8.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [209.132.183.28 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -1.4 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree , Hans de Goede , =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= , linux-input@vger.kernel.org, Sean Cross , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org List-Id: linux-imx-kernel.lists.patchwork.ozlabs.org The new(ish) ft6236 simply re-implements the M09 protocol of the (much) older edt-ft5x06.c driver. This commit removes this duplicate driver and adds the i2c ids and dt compatible string to the edt-ft5x06.c driver to keep compatibility. Cc: Sean Cross Cc: Noralf Trønnes Signed-off-by: Hans de Goede --- drivers/input/touchscreen/Kconfig | 13 -- drivers/input/touchscreen/Makefile | 1 - drivers/input/touchscreen/edt-ft5x06.c | 8 + drivers/input/touchscreen/ft6236.c | 326 --------------------------------- 4 files changed, 8 insertions(+), 340 deletions(-) delete mode 100644 drivers/input/touchscreen/ft6236.c diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 64e7501..198945d 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -305,19 +305,6 @@ config TOUCHSCREEN_EGALAX_SERIAL To compile this driver as a module, choose M here: the module will be called egalax_ts_serial. -config TOUCHSCREEN_FT6236 - tristate "FT6236 I2C touchscreen" - depends on I2C - depends on GPIOLIB || COMPILE_TEST - help - Say Y here to enable support for the I2C connected FT6x06 and - FT6x36 family of capacitive touchscreen drivers. - - If unsure, say N. - - To compile this driver as a module, choose M here: the - module will be called ft6236. - config TOUCHSCREEN_FUJITSU tristate "Fujitsu serial touchscreen" select SERIO diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index a4b00d0..a144c4e 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -36,7 +36,6 @@ obj-$(CONFIG_TOUCHSCREEN_ELAN) += elants_i2c.o obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o obj-$(CONFIG_TOUCHSCREEN_EGALAX) += egalax_ts.o obj-$(CONFIG_TOUCHSCREEN_EGALAX_SERIAL) += egalax_ts_serial.o -obj-$(CONFIG_TOUCHSCREEN_FT6236) += ft6236.o obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o obj-$(CONFIG_TOUCHSCREEN_GOODIX) += goodix.o obj-$(CONFIG_TOUCHSCREEN_ILI210X) += ili210x.o diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c index d19bf45..481d8ba 100644 --- a/drivers/input/touchscreen/edt-ft5x06.c +++ b/drivers/input/touchscreen/edt-ft5x06.c @@ -1071,9 +1071,15 @@ static const struct edt_i2c_chip_data edt_ft5506_data = { .max_support_points = 10, }; +static const struct edt_i2c_chip_data edt_ft6236_data = { + .max_support_points = 2, +}; + static const struct i2c_device_id edt_ft5x06_ts_id[] = { { .name = "edt-ft5x06", .driver_data = (long)&edt_ft5x06_data }, { .name = "edt-ft5506", .driver_data = (long)&edt_ft5506_data }, + /* Note no edt- prefix for compatibility with the ft6236.c driver */ + { .name = "ft6236", .driver_data = (long)&edt_ft6236_data }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(i2c, edt_ft5x06_ts_id); @@ -1084,6 +1090,8 @@ static const struct of_device_id edt_ft5x06_of_match[] = { { .compatible = "edt,edt-ft5306", .data = &edt_ft5x06_data }, { .compatible = "edt,edt-ft5406", .data = &edt_ft5x06_data }, { .compatible = "edt,edt-ft5506", .data = &edt_ft5506_data }, + /* Note focaltech vendor prefix for compatibility with ft6236.c */ + { .compatible = "focaltech,ft6236", .data = &edt_ft6236_data }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, edt_ft5x06_of_match); diff --git a/drivers/input/touchscreen/ft6236.c b/drivers/input/touchscreen/ft6236.c deleted file mode 100644 index d240d2e..0000000 --- a/drivers/input/touchscreen/ft6236.c +++ /dev/null @@ -1,326 +0,0 @@ -/* - * FocalTech FT6236 TouchScreen driver. - * - * Copyright (c) 2010 Focal tech Ltd. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#define FT6236_MAX_TOUCH_POINTS 2 - -#define FT6236_REG_TH_GROUP 0x80 -#define FT6236_REG_PERIODACTIVE 0x88 -#define FT6236_REG_LIB_VER_H 0xa1 -#define FT6236_REG_LIB_VER_L 0xa2 -#define FT6236_REG_CIPHER 0xa3 -#define FT6236_REG_FIRMID 0xa6 -#define FT6236_REG_FOCALTECH_ID 0xa8 -#define FT6236_REG_RELEASE_CODE_ID 0xaf - -#define FT6236_EVENT_PRESS_DOWN 0 -#define FT6236_EVENT_LIFT_UP 1 -#define FT6236_EVENT_CONTACT 2 -#define FT6236_EVENT_NO_EVENT 3 - -struct ft6236_data { - struct i2c_client *client; - struct input_dev *input; - struct gpio_desc *reset_gpio; - u32 max_x; - u32 max_y; - bool invert_x; - bool invert_y; - bool swap_xy; -}; - -/* - * This struct is a touchpoint as stored in hardware. Note that the id, - * as well as the event, are stored in the upper nybble of the hi byte. - */ -struct ft6236_touchpoint { - union { - u8 xhi; - u8 event; - }; - u8 xlo; - union { - u8 yhi; - u8 id; - }; - u8 ylo; - u8 weight; - u8 misc; -} __packed; - -/* This packet represents the register map as read from offset 0 */ -struct ft6236_packet { - u8 dev_mode; - u8 gest_id; - u8 touches; - struct ft6236_touchpoint points[FT6236_MAX_TOUCH_POINTS]; -} __packed; - -static int ft6236_read(struct i2c_client *client, u8 reg, u8 len, void *data) -{ - int error; - - error = i2c_smbus_read_i2c_block_data(client, reg, len, data); - if (error < 0) - return error; - - if (error != len) - return -EIO; - - return 0; -} - -static irqreturn_t ft6236_interrupt(int irq, void *dev_id) -{ - struct ft6236_data *ft6236 = dev_id; - struct device *dev = &ft6236->client->dev; - struct input_dev *input = ft6236->input; - struct ft6236_packet buf; - u8 touches; - int i, error; - - error = ft6236_read(ft6236->client, 0, sizeof(buf), &buf); - if (error) { - dev_err(dev, "read touchdata failed %d\n", error); - return IRQ_HANDLED; - } - - touches = buf.touches & 0xf; - if (touches > FT6236_MAX_TOUCH_POINTS) { - dev_dbg(dev, - "%d touch points reported, only %d are supported\n", - touches, FT6236_MAX_TOUCH_POINTS); - touches = FT6236_MAX_TOUCH_POINTS; - } - - for (i = 0; i < touches; i++) { - struct ft6236_touchpoint *point = &buf.points[i]; - u16 x = ((point->xhi & 0xf) << 8) | buf.points[i].xlo; - u16 y = ((point->yhi & 0xf) << 8) | buf.points[i].ylo; - u8 event = point->event >> 6; - u8 id = point->id >> 4; - bool act = (event == FT6236_EVENT_PRESS_DOWN || - event == FT6236_EVENT_CONTACT); - - input_mt_slot(input, id); - input_mt_report_slot_state(input, MT_TOOL_FINGER, act); - if (!act) - continue; - - if (ft6236->invert_x) - x = ft6236->max_x - x; - - if (ft6236->invert_y) - y = ft6236->max_y - y; - - if (ft6236->swap_xy) { - input_report_abs(input, ABS_MT_POSITION_X, y); - input_report_abs(input, ABS_MT_POSITION_Y, x); - } else { - input_report_abs(input, ABS_MT_POSITION_X, x); - input_report_abs(input, ABS_MT_POSITION_Y, y); - } - } - - input_mt_sync_frame(input); - input_sync(input); - - return IRQ_HANDLED; -} - -static u8 ft6236_debug_read_byte(struct ft6236_data *ft6236, u8 reg) -{ - struct i2c_client *client = ft6236->client; - u8 val = 0; - int error; - - error = ft6236_read(client, reg, 1, &val); - if (error) - dev_dbg(&client->dev, - "error reading register 0x%02x: %d\n", reg, error); - - return val; -} - -static void ft6236_debug_info(struct ft6236_data *ft6236) -{ - struct device *dev = &ft6236->client->dev; - - dev_dbg(dev, "Touch threshold is %d\n", - ft6236_debug_read_byte(ft6236, FT6236_REG_TH_GROUP) * 4); - dev_dbg(dev, "Report rate is %dHz\n", - ft6236_debug_read_byte(ft6236, FT6236_REG_PERIODACTIVE) * 10); - dev_dbg(dev, "Firmware library version 0x%02x%02x\n", - ft6236_debug_read_byte(ft6236, FT6236_REG_LIB_VER_H), - ft6236_debug_read_byte(ft6236, FT6236_REG_LIB_VER_L)); - dev_dbg(dev, "Firmware version 0x%02x\n", - ft6236_debug_read_byte(ft6236, FT6236_REG_FIRMID)); - dev_dbg(dev, "Chip vendor ID 0x%02x\n", - ft6236_debug_read_byte(ft6236, FT6236_REG_CIPHER)); - dev_dbg(dev, "CTPM vendor ID 0x%02x\n", - ft6236_debug_read_byte(ft6236, FT6236_REG_FOCALTECH_ID)); - dev_dbg(dev, "Release code version 0x%02x\n", - ft6236_debug_read_byte(ft6236, FT6236_REG_RELEASE_CODE_ID)); -} - -static void ft6236_reset(struct ft6236_data *ft6236) -{ - if (!ft6236->reset_gpio) - return; - - gpiod_set_value_cansleep(ft6236->reset_gpio, 1); - usleep_range(5000, 20000); - gpiod_set_value_cansleep(ft6236->reset_gpio, 0); - msleep(300); -} - -static int ft6236_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct device *dev = &client->dev; - struct ft6236_data *ft6236; - struct input_dev *input; - u32 fuzz_x = 0, fuzz_y = 0; - u8 val; - int error; - - if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) - return -ENXIO; - - if (!client->irq) { - dev_err(dev, "irq is missing\n"); - return -EINVAL; - } - - ft6236 = devm_kzalloc(dev, sizeof(*ft6236), GFP_KERNEL); - if (!ft6236) - return -ENOMEM; - - ft6236->client = client; - ft6236->reset_gpio = devm_gpiod_get_optional(dev, "reset", - GPIOD_OUT_LOW); - if (IS_ERR(ft6236->reset_gpio)) { - error = PTR_ERR(ft6236->reset_gpio); - if (error != -EPROBE_DEFER) - dev_err(dev, "error getting reset gpio: %d\n", error); - return error; - } - - ft6236_reset(ft6236); - - /* verify that the controller is present */ - error = ft6236_read(client, 0x00, 1, &val); - if (error) { - dev_err(dev, "failed to read from controller: %d\n", error); - return error; - } - - ft6236_debug_info(ft6236); - - input = devm_input_allocate_device(dev); - if (!input) - return -ENOMEM; - - ft6236->input = input; - input->name = client->name; - input->id.bustype = BUS_I2C; - - if (device_property_read_u32(dev, "touchscreen-size-x", - &ft6236->max_x) || - device_property_read_u32(dev, "touchscreen-size-y", - &ft6236->max_y)) { - dev_err(dev, "touchscreen-size-x and/or -y missing\n"); - return -EINVAL; - } - - device_property_read_u32(dev, "touchscreen-fuzz-x", &fuzz_x); - device_property_read_u32(dev, "touchscreen-fuzz-y", &fuzz_y); - ft6236->invert_x = device_property_read_bool(dev, - "touchscreen-inverted-x"); - ft6236->invert_y = device_property_read_bool(dev, - "touchscreen-inverted-y"); - ft6236->swap_xy = device_property_read_bool(dev, - "touchscreen-swapped-x-y"); - - if (ft6236->swap_xy) { - input_set_abs_params(input, ABS_MT_POSITION_X, 0, - ft6236->max_y, fuzz_y, 0); - input_set_abs_params(input, ABS_MT_POSITION_Y, 0, - ft6236->max_x, fuzz_x, 0); - } else { - input_set_abs_params(input, ABS_MT_POSITION_X, 0, - ft6236->max_x, fuzz_x, 0); - input_set_abs_params(input, ABS_MT_POSITION_Y, 0, - ft6236->max_y, fuzz_y, 0); - } - - error = input_mt_init_slots(input, FT6236_MAX_TOUCH_POINTS, - INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED); - if (error) - return error; - - error = devm_request_threaded_irq(dev, client->irq, NULL, - ft6236_interrupt, IRQF_ONESHOT, - client->name, ft6236); - if (error) { - dev_err(dev, "request irq %d failed: %d\n", client->irq, error); - return error; - } - - error = input_register_device(input); - if (error) { - dev_err(dev, "failed to register input device: %d\n", error); - return error; - } - - return 0; -} - -#ifdef CONFIG_OF -static const struct of_device_id ft6236_of_match[] = { - { .compatible = "focaltech,ft6236", }, - { } -}; -MODULE_DEVICE_TABLE(of, ft6236_of_match); -#endif - -static const struct i2c_device_id ft6236_id[] = { - { "ft6236", }, - { } -}; -MODULE_DEVICE_TABLE(i2c, ft6236_id); - -static struct i2c_driver ft6236_driver = { - .driver = { - .name = "ft6236", - .of_match_table = of_match_ptr(ft6236_of_match), - }, - .probe = ft6236_probe, - .id_table = ft6236_id, -}; -module_i2c_driver(ft6236_driver); - -MODULE_AUTHOR("Sean Cross "); -MODULE_AUTHOR("Noralf Trønnes "); -MODULE_DESCRIPTION("FocalTech FT6236 TouchScreen driver"); -MODULE_LICENSE("GPL v2");