From patchwork Wed Mar 5 17:35:39 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Belloni X-Patchwork-Id: 3778111 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 093CABF540 for ; Wed, 5 Mar 2014 17:41:44 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B724D201F2 for ; Wed, 5 Mar 2014 17:41:42 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0442C201E4 for ; Wed, 5 Mar 2014 17:41:41 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WLFn4-0000RP-11; Wed, 05 Mar 2014 17:39:37 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WLFm8-0001bN-7n; Wed, 05 Mar 2014 17:38:36 +0000 Received: from top.free-electrons.com ([176.31.233.9] helo=mail.free-electrons.com) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WLFk9-0001JD-BX for linux-arm-kernel@lists.infradead.org; Wed, 05 Mar 2014 17:36:57 +0000 Received: by mail.free-electrons.com (Postfix, from userid 106) id B87BA2819; Wed, 5 Mar 2014 18:36:03 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Status: No, score=-1.2 required=5.0 tests=BAYES_00,KHOP_BIG_TO_CC, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=no version=3.3.1 Received: from localhost (128-79-216-6.hfc.dyn.abo.bbox.fr [128.79.216.6]) by mail.free-electrons.com (Postfix) with ESMTPSA id 40680EFE; Wed, 5 Mar 2014 18:36:03 +0100 (CET) From: Alexandre Belloni To: Nicolas Ferre , Jonathan Cameron , Dmitry Torokhov Subject: [PATCH 14/15] Input: atmel_tsadcc: remove driver Date: Wed, 5 Mar 2014 18:35:39 +0100 Message-Id: <1394040940-18246-15-git-send-email-alexandre.belloni@free-electrons.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1394040940-18246-1-git-send-email-alexandre.belloni@free-electrons.com> References: <1394040940-18246-1-git-send-email-alexandre.belloni@free-electrons.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140305_123634_841438_FB6B6569 X-CRM114-Status: GOOD ( 22.78 ) X-Spam-Score: 1.8 (+) Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Alexandre Belloni , linux-input@vger.kernel.org, Gregory Clement , Maxime Ripard , Jean-Christophe Plagniol-Villard , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Level: * X-Virus-Scanned: ClamAV using ClamSMTP The atmel_tsadcc driver is not used anymore, it has been replaced by at91_adc so remove it. Signed-off-by: Alexandre Belloni Acked-by: Dmitry Torokhov --- MAINTAINERS | 6 - drivers/input/touchscreen/Kconfig | 12 -- drivers/input/touchscreen/Makefile | 1 - drivers/input/touchscreen/atmel_tsadcc.c | 358 ------------------------------- 4 files changed, 377 deletions(-) delete mode 100644 drivers/input/touchscreen/atmel_tsadcc.c diff --git a/MAINTAINERS b/MAINTAINERS index c6d0e93eff62..134dd63dfa17 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1591,12 +1591,6 @@ S: Supported F: drivers/misc/atmel_tclib.c F: drivers/clocksource/tcb_clksrc.c -ATMEL TSADCC DRIVER -M: Josh Wu -L: linux-input@vger.kernel.org -S: Supported -F: drivers/input/touchscreen/atmel_tsadcc.c - ATMEL USBA UDC DRIVER M: Nicolas Ferre L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 07e9e82029d1..4090f69e78af 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -559,18 +559,6 @@ config TOUCHSCREEN_TI_AM335X_TSC To compile this driver as a module, choose M here: the module will be called ti_am335x_tsc. -config TOUCHSCREEN_ATMEL_TSADCC - tristate "Atmel Touchscreen Interface" - depends on ARCH_AT91 - help - Say Y here if you have a 4-wire touchscreen connected to the - ADC Controller on your Atmel SoC. - - If unsure, say N. - - To compile this driver as a module, choose M here: the - module will be called atmel_tsadcc. - config TOUCHSCREEN_UCB1400 tristate "Philips UCB1400 touchscreen" depends on AC97_BUS diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 62801f213346..f326a8290593 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -13,7 +13,6 @@ obj-$(CONFIG_TOUCHSCREEN_AD7879_I2C) += ad7879-i2c.o obj-$(CONFIG_TOUCHSCREEN_AD7879_SPI) += ad7879-spi.o obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o obj-$(CONFIG_TOUCHSCREEN_ATMEL_MXT) += atmel_mxt_ts.o -obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o obj-$(CONFIG_TOUCHSCREEN_AUO_PIXCIR) += auo-pixcir-ts.o obj-$(CONFIG_TOUCHSCREEN_BU21013) += bu21013_ts.o obj-$(CONFIG_TOUCHSCREEN_CY8CTMG110) += cy8ctmg110_ts.o diff --git a/drivers/input/touchscreen/atmel_tsadcc.c b/drivers/input/touchscreen/atmel_tsadcc.c deleted file mode 100644 index a7c9d6967d1e..000000000000 --- a/drivers/input/touchscreen/atmel_tsadcc.c +++ /dev/null @@ -1,358 +0,0 @@ -/* - * Atmel Touch Screen Driver - * - * Copyright (c) 2008 ATMEL - * Copyright (c) 2008 Dan Liang - * Copyright (c) 2008 TimeSys Corporation - * Copyright (c) 2008 Justin Waters - * - * Based on touchscreen code from Atmel Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* Register definitions based on AT91SAM9RL64 preliminary draft datasheet */ - -#define ATMEL_TSADCC_CR 0x00 /* Control register */ -#define ATMEL_TSADCC_SWRST (1 << 0) /* Software Reset*/ -#define ATMEL_TSADCC_START (1 << 1) /* Start conversion */ - -#define ATMEL_TSADCC_MR 0x04 /* Mode register */ -#define ATMEL_TSADCC_TSAMOD (3 << 0) /* ADC mode */ -#define ATMEL_TSADCC_TSAMOD_ADC_ONLY_MODE (0x0) /* ADC Mode */ -#define ATMEL_TSADCC_TSAMOD_TS_ONLY_MODE (0x1) /* Touch Screen Only Mode */ -#define ATMEL_TSADCC_LOWRES (1 << 4) /* Resolution selection */ -#define ATMEL_TSADCC_SLEEP (1 << 5) /* Sleep mode */ -#define ATMEL_TSADCC_PENDET (1 << 6) /* Pen Detect selection */ -#define ATMEL_TSADCC_PRES (1 << 7) /* Pressure Measurement Selection */ -#define ATMEL_TSADCC_PRESCAL (0x3f << 8) /* Prescalar Rate Selection */ -#define ATMEL_TSADCC_EPRESCAL (0xff << 8) /* Prescalar Rate Selection (Extended) */ -#define ATMEL_TSADCC_STARTUP (0x7f << 16) /* Start Up time */ -#define ATMEL_TSADCC_SHTIM (0xf << 24) /* Sample & Hold time */ -#define ATMEL_TSADCC_PENDBC (0xf << 28) /* Pen Detect debouncing time */ - -#define ATMEL_TSADCC_TRGR 0x08 /* Trigger register */ -#define ATMEL_TSADCC_TRGMOD (7 << 0) /* Trigger mode */ -#define ATMEL_TSADCC_TRGMOD_NONE (0 << 0) -#define ATMEL_TSADCC_TRGMOD_EXT_RISING (1 << 0) -#define ATMEL_TSADCC_TRGMOD_EXT_FALLING (2 << 0) -#define ATMEL_TSADCC_TRGMOD_EXT_ANY (3 << 0) -#define ATMEL_TSADCC_TRGMOD_PENDET (4 << 0) -#define ATMEL_TSADCC_TRGMOD_PERIOD (5 << 0) -#define ATMEL_TSADCC_TRGMOD_CONTINUOUS (6 << 0) -#define ATMEL_TSADCC_TRGPER (0xffff << 16) /* Trigger period */ - -#define ATMEL_TSADCC_TSR 0x0C /* Touch Screen register */ -#define ATMEL_TSADCC_TSFREQ (0xf << 0) /* TS Frequency in Interleaved mode */ -#define ATMEL_TSADCC_TSSHTIM (0xf << 24) /* Sample & Hold time */ - -#define ATMEL_TSADCC_CHER 0x10 /* Channel Enable register */ -#define ATMEL_TSADCC_CHDR 0x14 /* Channel Disable register */ -#define ATMEL_TSADCC_CHSR 0x18 /* Channel Status register */ -#define ATMEL_TSADCC_CH(n) (1 << (n)) /* Channel number */ - -#define ATMEL_TSADCC_SR 0x1C /* Status register */ -#define ATMEL_TSADCC_EOC(n) (1 << ((n)+0)) /* End of conversion for channel N */ -#define ATMEL_TSADCC_OVRE(n) (1 << ((n)+8)) /* Overrun error for channel N */ -#define ATMEL_TSADCC_DRDY (1 << 16) /* Data Ready */ -#define ATMEL_TSADCC_GOVRE (1 << 17) /* General Overrun Error */ -#define ATMEL_TSADCC_ENDRX (1 << 18) /* End of RX Buffer */ -#define ATMEL_TSADCC_RXBUFF (1 << 19) /* TX Buffer full */ -#define ATMEL_TSADCC_PENCNT (1 << 20) /* Pen contact */ -#define ATMEL_TSADCC_NOCNT (1 << 21) /* No contact */ - -#define ATMEL_TSADCC_LCDR 0x20 /* Last Converted Data register */ -#define ATMEL_TSADCC_DATA (0x3ff << 0) /* Channel data */ - -#define ATMEL_TSADCC_IER 0x24 /* Interrupt Enable register */ -#define ATMEL_TSADCC_IDR 0x28 /* Interrupt Disable register */ -#define ATMEL_TSADCC_IMR 0x2C /* Interrupt Mask register */ -#define ATMEL_TSADCC_CDR0 0x30 /* Channel Data 0 */ -#define ATMEL_TSADCC_CDR1 0x34 /* Channel Data 1 */ -#define ATMEL_TSADCC_CDR2 0x38 /* Channel Data 2 */ -#define ATMEL_TSADCC_CDR3 0x3C /* Channel Data 3 */ -#define ATMEL_TSADCC_CDR4 0x40 /* Channel Data 4 */ -#define ATMEL_TSADCC_CDR5 0x44 /* Channel Data 5 */ - -#define ATMEL_TSADCC_XPOS 0x50 -#define ATMEL_TSADCC_Z1DAT 0x54 -#define ATMEL_TSADCC_Z2DAT 0x58 - -#define PRESCALER_VAL(x) ((x) >> 8) - -#define ADC_DEFAULT_CLOCK 100000 - -struct atmel_tsadcc { - struct input_dev *input; - char phys[32]; - struct clk *clk; - int irq; - unsigned int prev_absx; - unsigned int prev_absy; - unsigned char bufferedmeasure; -}; - -static void __iomem *tsc_base; - -#define atmel_tsadcc_read(reg) __raw_readl(tsc_base + (reg)) -#define atmel_tsadcc_write(reg, val) __raw_writel((val), tsc_base + (reg)) - -static irqreturn_t atmel_tsadcc_interrupt(int irq, void *dev) -{ - struct atmel_tsadcc *ts_dev = (struct atmel_tsadcc *)dev; - struct input_dev *input_dev = ts_dev->input; - - unsigned int status; - unsigned int reg; - - status = atmel_tsadcc_read(ATMEL_TSADCC_SR); - status &= atmel_tsadcc_read(ATMEL_TSADCC_IMR); - - if (status & ATMEL_TSADCC_NOCNT) { - /* Contact lost */ - reg = atmel_tsadcc_read(ATMEL_TSADCC_MR) | ATMEL_TSADCC_PENDBC; - - atmel_tsadcc_write(ATMEL_TSADCC_MR, reg); - atmel_tsadcc_write(ATMEL_TSADCC_TRGR, ATMEL_TSADCC_TRGMOD_NONE); - atmel_tsadcc_write(ATMEL_TSADCC_IDR, - ATMEL_TSADCC_EOC(3) | ATMEL_TSADCC_NOCNT); - atmel_tsadcc_write(ATMEL_TSADCC_IER, ATMEL_TSADCC_PENCNT); - - input_report_key(input_dev, BTN_TOUCH, 0); - ts_dev->bufferedmeasure = 0; - input_sync(input_dev); - - } else if (status & ATMEL_TSADCC_PENCNT) { - /* Pen detected */ - reg = atmel_tsadcc_read(ATMEL_TSADCC_MR); - reg &= ~ATMEL_TSADCC_PENDBC; - - atmel_tsadcc_write(ATMEL_TSADCC_IDR, ATMEL_TSADCC_PENCNT); - atmel_tsadcc_write(ATMEL_TSADCC_MR, reg); - atmel_tsadcc_write(ATMEL_TSADCC_IER, - ATMEL_TSADCC_EOC(3) | ATMEL_TSADCC_NOCNT); - atmel_tsadcc_write(ATMEL_TSADCC_TRGR, - ATMEL_TSADCC_TRGMOD_PERIOD | (0x0FFF << 16)); - - } else if (status & ATMEL_TSADCC_EOC(3)) { - /* Conversion finished */ - - if (ts_dev->bufferedmeasure) { - /* Last measurement is always discarded, since it can - * be erroneous. - * Always report previous measurement */ - input_report_abs(input_dev, ABS_X, ts_dev->prev_absx); - input_report_abs(input_dev, ABS_Y, ts_dev->prev_absy); - input_report_key(input_dev, BTN_TOUCH, 1); - input_sync(input_dev); - } else - ts_dev->bufferedmeasure = 1; - - /* Now make new measurement */ - ts_dev->prev_absx = atmel_tsadcc_read(ATMEL_TSADCC_CDR3) << 10; - ts_dev->prev_absx /= atmel_tsadcc_read(ATMEL_TSADCC_CDR2); - - ts_dev->prev_absy = atmel_tsadcc_read(ATMEL_TSADCC_CDR1) << 10; - ts_dev->prev_absy /= atmel_tsadcc_read(ATMEL_TSADCC_CDR0); - } - - return IRQ_HANDLED; -} - -/* - * The functions for inserting/removing us as a module. - */ - -static int atmel_tsadcc_probe(struct platform_device *pdev) -{ - struct atmel_tsadcc *ts_dev; - struct input_dev *input_dev; - struct resource *res; - struct at91_tsadcc_data *pdata = dev_get_platdata(&pdev->dev); - int err; - unsigned int prsc; - unsigned int reg; - - if (!pdata) - return -EINVAL; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "no mmio resource defined.\n"); - return -ENXIO; - } - - /* Allocate memory for device */ - ts_dev = kzalloc(sizeof(struct atmel_tsadcc), GFP_KERNEL); - if (!ts_dev) { - dev_err(&pdev->dev, "failed to allocate memory.\n"); - return -ENOMEM; - } - platform_set_drvdata(pdev, ts_dev); - - input_dev = input_allocate_device(); - if (!input_dev) { - dev_err(&pdev->dev, "failed to allocate input device.\n"); - err = -EBUSY; - goto err_free_mem; - } - - ts_dev->irq = platform_get_irq(pdev, 0); - if (ts_dev->irq < 0) { - dev_err(&pdev->dev, "no irq ID is designated.\n"); - err = -ENODEV; - goto err_free_dev; - } - - if (!request_mem_region(res->start, resource_size(res), - "atmel tsadcc regs")) { - dev_err(&pdev->dev, "resources is unavailable.\n"); - err = -EBUSY; - goto err_free_dev; - } - - tsc_base = ioremap(res->start, resource_size(res)); - if (!tsc_base) { - dev_err(&pdev->dev, "failed to map registers.\n"); - err = -ENOMEM; - goto err_release_mem; - } - - err = request_irq(ts_dev->irq, atmel_tsadcc_interrupt, 0, - pdev->dev.driver->name, ts_dev); - if (err) { - dev_err(&pdev->dev, "failed to allocate irq.\n"); - goto err_unmap_regs; - } - - ts_dev->clk = clk_get(&pdev->dev, "tsc_clk"); - if (IS_ERR(ts_dev->clk)) { - dev_err(&pdev->dev, "failed to get ts_clk\n"); - err = PTR_ERR(ts_dev->clk); - goto err_free_irq; - } - - ts_dev->input = input_dev; - ts_dev->bufferedmeasure = 0; - - snprintf(ts_dev->phys, sizeof(ts_dev->phys), - "%s/input0", dev_name(&pdev->dev)); - - input_dev->name = "atmel touch screen controller"; - input_dev->phys = ts_dev->phys; - input_dev->dev.parent = &pdev->dev; - - __set_bit(EV_ABS, input_dev->evbit); - input_set_abs_params(input_dev, ABS_X, 0, 0x3FF, 0, 0); - input_set_abs_params(input_dev, ABS_Y, 0, 0x3FF, 0, 0); - - input_set_capability(input_dev, EV_KEY, BTN_TOUCH); - - /* clk_enable() always returns 0, no need to check it */ - clk_enable(ts_dev->clk); - - prsc = clk_get_rate(ts_dev->clk); - dev_info(&pdev->dev, "Master clock is set at: %d Hz\n", prsc); - - if (!pdata->adc_clock) - pdata->adc_clock = ADC_DEFAULT_CLOCK; - - prsc = (prsc / (2 * pdata->adc_clock)) - 1; - - /* saturate if this value is too high */ - if (cpu_is_at91sam9rl()) { - if (prsc > PRESCALER_VAL(ATMEL_TSADCC_PRESCAL)) - prsc = PRESCALER_VAL(ATMEL_TSADCC_PRESCAL); - } else { - if (prsc > PRESCALER_VAL(ATMEL_TSADCC_EPRESCAL)) - prsc = PRESCALER_VAL(ATMEL_TSADCC_EPRESCAL); - } - - dev_info(&pdev->dev, "Prescaler is set at: %d\n", prsc); - - reg = ATMEL_TSADCC_TSAMOD_TS_ONLY_MODE | - ((0x00 << 5) & ATMEL_TSADCC_SLEEP) | /* Normal Mode */ - ((0x01 << 6) & ATMEL_TSADCC_PENDET) | /* Enable Pen Detect */ - (prsc << 8) | - ((0x26 << 16) & ATMEL_TSADCC_STARTUP) | - ((pdata->pendet_debounce << 28) & ATMEL_TSADCC_PENDBC); - - atmel_tsadcc_write(ATMEL_TSADCC_CR, ATMEL_TSADCC_SWRST); - atmel_tsadcc_write(ATMEL_TSADCC_MR, reg); - atmel_tsadcc_write(ATMEL_TSADCC_TRGR, ATMEL_TSADCC_TRGMOD_NONE); - atmel_tsadcc_write(ATMEL_TSADCC_TSR, - (pdata->ts_sample_hold_time << 24) & ATMEL_TSADCC_TSSHTIM); - - atmel_tsadcc_read(ATMEL_TSADCC_SR); - atmel_tsadcc_write(ATMEL_TSADCC_IER, ATMEL_TSADCC_PENCNT); - - /* All went ok, so register to the input system */ - err = input_register_device(input_dev); - if (err) - goto err_fail; - - return 0; - -err_fail: - clk_disable(ts_dev->clk); - clk_put(ts_dev->clk); -err_free_irq: - free_irq(ts_dev->irq, ts_dev); -err_unmap_regs: - iounmap(tsc_base); -err_release_mem: - release_mem_region(res->start, resource_size(res)); -err_free_dev: - input_free_device(input_dev); -err_free_mem: - kfree(ts_dev); - return err; -} - -static int atmel_tsadcc_remove(struct platform_device *pdev) -{ - struct atmel_tsadcc *ts_dev = platform_get_drvdata(pdev); - struct resource *res; - - free_irq(ts_dev->irq, ts_dev); - - input_unregister_device(ts_dev->input); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - iounmap(tsc_base); - release_mem_region(res->start, resource_size(res)); - - clk_disable(ts_dev->clk); - clk_put(ts_dev->clk); - - kfree(ts_dev); - - return 0; -} - -static struct platform_driver atmel_tsadcc_driver = { - .probe = atmel_tsadcc_probe, - .remove = atmel_tsadcc_remove, - .driver = { - .name = "atmel_tsadcc", - }, -}; -module_platform_driver(atmel_tsadcc_driver); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Atmel TouchScreen Driver"); -MODULE_AUTHOR("Dan Liang "); -