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mfd: remove ucb1400 support
The ucb1400 MFD driver and its gpio and touchscreen child drivers were only used on a few PXA machines that were unused for a while and are now removed. Removing these leaves the AC97 support as ALSA specific, no other drivers are now connected through this interface. Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Bartosz Golaszewski <brgl@bgdev.pl> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Lee Jones <lee@kernel.org> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: Marek Vasut <marex@denx.de> Cc: linux-kernel@vger.kernel.org Cc: linux-gpio@vger.kernel.org Cc: linux-input@vger.kernel.org Cc: alsa-devel@alsa-project.org Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
parent
8971bb812e
commit
2e99b1b065
@ -1428,13 +1428,6 @@ config GPIO_TWL6040
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Say yes here to access the GPO signals of twl6040
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audio chip from Texas Instruments.
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config GPIO_UCB1400
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tristate "Philips UCB1400 GPIO"
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depends on UCB1400_CORE
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help
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This enables support for the Philips UCB1400 GPIO pins.
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The UCB1400 is an AC97 audio codec.
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config GPIO_WHISKEY_COVE
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tristate "GPIO support for Whiskey Cove PMIC"
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depends on (X86 || COMPILE_TEST) && INTEL_SOC_PMIC_BXTWC
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@ -165,7 +165,6 @@ obj-$(CONFIG_GPIO_TS4900) += gpio-ts4900.o
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obj-$(CONFIG_GPIO_TS5500) += gpio-ts5500.o
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obj-$(CONFIG_GPIO_TWL4030) += gpio-twl4030.o
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obj-$(CONFIG_GPIO_TWL6040) += gpio-twl6040.o
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obj-$(CONFIG_GPIO_UCB1400) += gpio-ucb1400.o
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obj-$(CONFIG_GPIO_UNIPHIER) += gpio-uniphier.o
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obj-$(CONFIG_GPIO_VF610) += gpio-vf610.o
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obj-$(CONFIG_GPIO_VIPERBOARD) += gpio-viperboard.o
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@ -1,85 +0,0 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Philips UCB1400 GPIO driver
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*
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* Author: Marek Vasut <marek.vasut@gmail.com>
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*/
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#include <linux/module.h>
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#include <linux/ucb1400.h>
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#include <linux/gpio/driver.h>
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static int ucb1400_gpio_dir_in(struct gpio_chip *gc, unsigned off)
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{
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struct ucb1400_gpio *gpio;
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gpio = gpiochip_get_data(gc);
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ucb1400_gpio_set_direction(gpio->ac97, off, 0);
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return 0;
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}
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static int ucb1400_gpio_dir_out(struct gpio_chip *gc, unsigned off, int val)
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{
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struct ucb1400_gpio *gpio;
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gpio = gpiochip_get_data(gc);
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ucb1400_gpio_set_direction(gpio->ac97, off, 1);
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ucb1400_gpio_set_value(gpio->ac97, off, val);
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return 0;
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}
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static int ucb1400_gpio_get(struct gpio_chip *gc, unsigned off)
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{
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struct ucb1400_gpio *gpio;
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gpio = gpiochip_get_data(gc);
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return !!ucb1400_gpio_get_value(gpio->ac97, off);
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}
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static void ucb1400_gpio_set(struct gpio_chip *gc, unsigned off, int val)
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{
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struct ucb1400_gpio *gpio;
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gpio = gpiochip_get_data(gc);
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ucb1400_gpio_set_value(gpio->ac97, off, val);
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}
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static int ucb1400_gpio_probe(struct platform_device *dev)
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{
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struct ucb1400_gpio *ucb = dev_get_platdata(&dev->dev);
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int err = 0;
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if (!(ucb && ucb->gpio_offset)) {
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err = -EINVAL;
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goto err;
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}
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platform_set_drvdata(dev, ucb);
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ucb->gc.label = "ucb1400_gpio";
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ucb->gc.base = ucb->gpio_offset;
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ucb->gc.ngpio = 10;
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ucb->gc.owner = THIS_MODULE;
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ucb->gc.direction_input = ucb1400_gpio_dir_in;
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ucb->gc.direction_output = ucb1400_gpio_dir_out;
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ucb->gc.get = ucb1400_gpio_get;
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ucb->gc.set = ucb1400_gpio_set;
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ucb->gc.can_sleep = true;
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err = devm_gpiochip_add_data(&dev->dev, &ucb->gc, ucb);
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err:
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return err;
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}
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static struct platform_driver ucb1400_gpio_driver = {
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.probe = ucb1400_gpio_probe,
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.driver = {
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.name = "ucb1400_gpio"
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},
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};
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module_platform_driver(ucb1400_gpio_driver);
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MODULE_DESCRIPTION("Philips UCB1400 GPIO driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:ucb1400_gpio");
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@ -827,22 +827,6 @@ config TOUCHSCREEN_TI_AM335X_TSC
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To compile this driver as a module, choose M here: the
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module will be called ti_am335x_tsc.
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config TOUCHSCREEN_UCB1400
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tristate "Philips UCB1400 touchscreen"
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depends on AC97_BUS
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depends on UCB1400_CORE
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help
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This enables support for the Philips UCB1400 touchscreen interface.
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The UCB1400 is an AC97 audio codec. The touchscreen interface
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will be initialized only after the ALSA subsystem has been
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brought up and the UCB1400 detected. You therefore have to
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configure ALSA support as well (either built-in or modular,
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independently of whether this driver is itself built-in or
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modular) for this driver to work.
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To compile this driver as a module, choose M here: the
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module will be called ucb1400_ts.
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config TOUCHSCREEN_PIXCIR
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tristate "PIXCIR I2C touchscreens"
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depends on I2C
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@ -97,7 +97,6 @@ obj-$(CONFIG_TOUCHSCREEN_TSC2005) += tsc2005.o
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tsc2007-y := tsc2007_core.o
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tsc2007-$(CONFIG_TOUCHSCREEN_TSC2007_IIO) += tsc2007_iio.o
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obj-$(CONFIG_TOUCHSCREEN_TSC2007) += tsc2007.o
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obj-$(CONFIG_TOUCHSCREEN_UCB1400) += ucb1400_ts.o
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obj-$(CONFIG_TOUCHSCREEN_WACOM_W8001) += wacom_w8001.o
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obj-$(CONFIG_TOUCHSCREEN_WACOM_I2C) += wacom_i2c.o
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obj-$(CONFIG_TOUCHSCREEN_WDT87XX_I2C) += wdt87xx_i2c.o
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@ -1,458 +0,0 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Philips UCB1400 touchscreen driver
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*
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* Author: Nicolas Pitre
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* Created: September 25, 2006
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* Copyright: MontaVista Software, Inc.
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*
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* Spliting done by: Marek Vasut <marek.vasut@gmail.com>
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* If something doesn't work and it worked before spliting, e-mail me,
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* dont bother Nicolas please ;-)
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*
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* This code is heavily based on ucb1x00-*.c copyrighted by Russell King
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* covering the UCB1100, UCB1200 and UCB1300.. Support for the UCB1400 has
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* been made separate from ucb1x00-core/ucb1x00-ts on Russell's request.
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*/
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/sched.h>
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#include <linux/wait.h>
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#include <linux/input.h>
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#include <linux/device.h>
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#include <linux/interrupt.h>
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#include <linux/ucb1400.h>
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#define UCB1400_TS_POLL_PERIOD 10 /* ms */
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static bool adcsync;
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static int ts_delay = 55; /* us */
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static int ts_delay_pressure; /* us */
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/* Switch to interrupt mode. */
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static void ucb1400_ts_mode_int(struct ucb1400_ts *ucb)
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{
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ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
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UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
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UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
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UCB_TS_CR_MODE_INT);
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}
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/*
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* Switch to pressure mode, and read pressure. We don't need to wait
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* here, since both plates are being driven.
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*/
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static unsigned int ucb1400_ts_read_pressure(struct ucb1400_ts *ucb)
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{
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ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
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UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
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UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
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UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
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udelay(ts_delay_pressure);
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return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPY, adcsync);
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}
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/*
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* Switch to X position mode and measure Y plate. We switch the plate
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* configuration in pressure mode, then switch to position mode. This
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* gives a faster response time. Even so, we need to wait about 55us
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* for things to stabilise.
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*/
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static unsigned int ucb1400_ts_read_xpos(struct ucb1400_ts *ucb)
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{
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ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
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UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
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UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
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ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
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UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
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UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
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ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
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UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
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UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
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udelay(ts_delay);
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return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPY, adcsync);
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}
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/*
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* Switch to Y position mode and measure X plate. We switch the plate
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* configuration in pressure mode, then switch to position mode. This
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* gives a faster response time. Even so, we need to wait about 55us
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* for things to stabilise.
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*/
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static int ucb1400_ts_read_ypos(struct ucb1400_ts *ucb)
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{
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ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
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UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
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UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
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ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
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UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
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UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
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ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
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UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
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UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
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udelay(ts_delay);
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return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPX, adcsync);
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}
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/*
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* Switch to X plate resistance mode. Set MX to ground, PX to
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* supply. Measure current.
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*/
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static unsigned int ucb1400_ts_read_xres(struct ucb1400_ts *ucb)
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{
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ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
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UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
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UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
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return ucb1400_adc_read(ucb->ac97, 0, adcsync);
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}
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/*
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* Switch to Y plate resistance mode. Set MY to ground, PY to
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* supply. Measure current.
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*/
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static unsigned int ucb1400_ts_read_yres(struct ucb1400_ts *ucb)
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{
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ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
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UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
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UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
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return ucb1400_adc_read(ucb->ac97, 0, adcsync);
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}
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static int ucb1400_ts_pen_up(struct ucb1400_ts *ucb)
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{
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unsigned short val = ucb1400_reg_read(ucb->ac97, UCB_TS_CR);
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return val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW);
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}
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static void ucb1400_ts_irq_enable(struct ucb1400_ts *ucb)
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{
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ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, UCB_IE_TSPX);
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ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
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ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, UCB_IE_TSPX);
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}
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static void ucb1400_ts_irq_disable(struct ucb1400_ts *ucb)
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{
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ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, 0);
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}
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static void ucb1400_ts_report_event(struct input_dev *idev, u16 pressure, u16 x, u16 y)
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{
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input_report_abs(idev, ABS_X, x);
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input_report_abs(idev, ABS_Y, y);
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input_report_abs(idev, ABS_PRESSURE, pressure);
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input_report_key(idev, BTN_TOUCH, 1);
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input_sync(idev);
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}
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static void ucb1400_ts_event_release(struct input_dev *idev)
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{
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input_report_abs(idev, ABS_PRESSURE, 0);
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input_report_key(idev, BTN_TOUCH, 0);
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input_sync(idev);
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}
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static void ucb1400_clear_pending_irq(struct ucb1400_ts *ucb)
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{
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unsigned int isr;
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isr = ucb1400_reg_read(ucb->ac97, UCB_IE_STATUS);
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ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, isr);
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ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
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if (isr & UCB_IE_TSPX)
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ucb1400_ts_irq_disable(ucb);
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else
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dev_dbg(&ucb->ts_idev->dev,
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"ucb1400: unexpected IE_STATUS = %#x\n", isr);
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}
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/*
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* A restriction with interrupts exists when using the ucb1400, as
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* the codec read/write routines may sleep while waiting for codec
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* access completion and uses semaphores for access control to the
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* AC97 bus. Therefore the driver is forced to use threaded interrupt
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* handler.
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*/
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static irqreturn_t ucb1400_irq(int irqnr, void *devid)
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{
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struct ucb1400_ts *ucb = devid;
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unsigned int x, y, p;
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if (unlikely(irqnr != ucb->irq))
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return IRQ_NONE;
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ucb1400_clear_pending_irq(ucb);
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/* Start with a small delay before checking pendown state */
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msleep(UCB1400_TS_POLL_PERIOD);
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while (!ucb->stopped && !ucb1400_ts_pen_up(ucb)) {
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ucb1400_adc_enable(ucb->ac97);
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x = ucb1400_ts_read_xpos(ucb);
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y = ucb1400_ts_read_ypos(ucb);
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p = ucb1400_ts_read_pressure(ucb);
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ucb1400_adc_disable(ucb->ac97);
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ucb1400_ts_report_event(ucb->ts_idev, p, x, y);
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wait_event_timeout(ucb->ts_wait, ucb->stopped,
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msecs_to_jiffies(UCB1400_TS_POLL_PERIOD));
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}
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ucb1400_ts_event_release(ucb->ts_idev);
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if (!ucb->stopped) {
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/* Switch back to interrupt mode. */
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ucb1400_ts_mode_int(ucb);
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ucb1400_ts_irq_enable(ucb);
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}
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return IRQ_HANDLED;
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}
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static void ucb1400_ts_stop(struct ucb1400_ts *ucb)
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{
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/* Signal IRQ thread to stop polling and disable the handler. */
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ucb->stopped = true;
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mb();
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wake_up(&ucb->ts_wait);
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disable_irq(ucb->irq);
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ucb1400_ts_irq_disable(ucb);
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ucb1400_reg_write(ucb->ac97, UCB_TS_CR, 0);
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}
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/* Must be called with ts->lock held */
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static void ucb1400_ts_start(struct ucb1400_ts *ucb)
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{
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/* Tell IRQ thread that it may poll the device. */
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ucb->stopped = false;
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mb();
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ucb1400_ts_mode_int(ucb);
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ucb1400_ts_irq_enable(ucb);
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enable_irq(ucb->irq);
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}
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static int ucb1400_ts_open(struct input_dev *idev)
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{
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struct ucb1400_ts *ucb = input_get_drvdata(idev);
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ucb1400_ts_start(ucb);
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return 0;
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}
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|
||||
static void ucb1400_ts_close(struct input_dev *idev)
|
||||
{
|
||||
struct ucb1400_ts *ucb = input_get_drvdata(idev);
|
||||
|
||||
ucb1400_ts_stop(ucb);
|
||||
}
|
||||
|
||||
#ifndef NO_IRQ
|
||||
#define NO_IRQ 0
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Try to probe our interrupt, rather than relying on lots of
|
||||
* hard-coded machine dependencies.
|
||||
*/
|
||||
static int ucb1400_ts_detect_irq(struct ucb1400_ts *ucb,
|
||||
struct platform_device *pdev)
|
||||
{
|
||||
unsigned long mask, timeout;
|
||||
|
||||
mask = probe_irq_on();
|
||||
|
||||
/* Enable the ADC interrupt. */
|
||||
ucb1400_reg_write(ucb->ac97, UCB_IE_RIS, UCB_IE_ADC);
|
||||
ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, UCB_IE_ADC);
|
||||
ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0xffff);
|
||||
ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
|
||||
|
||||
/* Cause an ADC interrupt. */
|
||||
ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, UCB_ADC_ENA);
|
||||
ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, UCB_ADC_ENA | UCB_ADC_START);
|
||||
|
||||
/* Wait for the conversion to complete. */
|
||||
timeout = jiffies + HZ/2;
|
||||
while (!(ucb1400_reg_read(ucb->ac97, UCB_ADC_DATA) &
|
||||
UCB_ADC_DAT_VALID)) {
|
||||
cpu_relax();
|
||||
if (time_after(jiffies, timeout)) {
|
||||
dev_err(&pdev->dev, "timed out in IRQ probe\n");
|
||||
probe_irq_off(mask);
|
||||
return -ENODEV;
|
||||
}
|
||||
}
|
||||
ucb1400_reg_write(ucb->ac97, UCB_ADC_CR, 0);
|
||||
|
||||
/* Disable and clear interrupt. */
|
||||
ucb1400_reg_write(ucb->ac97, UCB_IE_RIS, 0);
|
||||
ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, 0);
|
||||
ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0xffff);
|
||||
ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
|
||||
|
||||
/* Read triggered interrupt. */
|
||||
ucb->irq = probe_irq_off(mask);
|
||||
if (ucb->irq < 0 || ucb->irq == NO_IRQ)
|
||||
return -ENODEV;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ucb1400_ts_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct ucb1400_ts *ucb = dev_get_platdata(&pdev->dev);
|
||||
int error, x_res, y_res;
|
||||
u16 fcsr;
|
||||
|
||||
ucb->ts_idev = input_allocate_device();
|
||||
if (!ucb->ts_idev) {
|
||||
error = -ENOMEM;
|
||||
goto err;
|
||||
}
|
||||
|
||||
/* Only in case the IRQ line wasn't supplied, try detecting it */
|
||||
if (ucb->irq < 0) {
|
||||
error = ucb1400_ts_detect_irq(ucb, pdev);
|
||||
if (error) {
|
||||
dev_err(&pdev->dev, "IRQ probe failed\n");
|
||||
goto err_free_devs;
|
||||
}
|
||||
}
|
||||
dev_dbg(&pdev->dev, "found IRQ %d\n", ucb->irq);
|
||||
|
||||
init_waitqueue_head(&ucb->ts_wait);
|
||||
|
||||
input_set_drvdata(ucb->ts_idev, ucb);
|
||||
|
||||
ucb->ts_idev->dev.parent = &pdev->dev;
|
||||
ucb->ts_idev->name = "UCB1400 touchscreen interface";
|
||||
ucb->ts_idev->id.vendor = ucb1400_reg_read(ucb->ac97,
|
||||
AC97_VENDOR_ID1);
|
||||
ucb->ts_idev->id.product = ucb->id;
|
||||
ucb->ts_idev->open = ucb1400_ts_open;
|
||||
ucb->ts_idev->close = ucb1400_ts_close;
|
||||
ucb->ts_idev->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
|
||||
ucb->ts_idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
|
||||
|
||||
/*
|
||||
* Enable ADC filter to prevent horrible jitter on Colibri.
|
||||
* This also further reduces jitter on boards where ADCSYNC
|
||||
* pin is connected.
|
||||
*/
|
||||
fcsr = ucb1400_reg_read(ucb->ac97, UCB_FCSR);
|
||||
ucb1400_reg_write(ucb->ac97, UCB_FCSR, fcsr | UCB_FCSR_AVE);
|
||||
|
||||
ucb1400_adc_enable(ucb->ac97);
|
||||
x_res = ucb1400_ts_read_xres(ucb);
|
||||
y_res = ucb1400_ts_read_yres(ucb);
|
||||
ucb1400_adc_disable(ucb->ac97);
|
||||
dev_dbg(&pdev->dev, "x/y = %d/%d\n", x_res, y_res);
|
||||
|
||||
input_set_abs_params(ucb->ts_idev, ABS_X, 0, x_res, 0, 0);
|
||||
input_set_abs_params(ucb->ts_idev, ABS_Y, 0, y_res, 0, 0);
|
||||
input_set_abs_params(ucb->ts_idev, ABS_PRESSURE, 0, 0, 0, 0);
|
||||
|
||||
ucb1400_ts_stop(ucb);
|
||||
|
||||
error = request_threaded_irq(ucb->irq, NULL, ucb1400_irq,
|
||||
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
|
||||
"UCB1400", ucb);
|
||||
if (error) {
|
||||
dev_err(&pdev->dev,
|
||||
"unable to grab irq%d: %d\n", ucb->irq, error);
|
||||
goto err_free_devs;
|
||||
}
|
||||
|
||||
error = input_register_device(ucb->ts_idev);
|
||||
if (error)
|
||||
goto err_free_irq;
|
||||
|
||||
return 0;
|
||||
|
||||
err_free_irq:
|
||||
free_irq(ucb->irq, ucb);
|
||||
err_free_devs:
|
||||
input_free_device(ucb->ts_idev);
|
||||
err:
|
||||
return error;
|
||||
}
|
||||
|
||||
static int ucb1400_ts_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct ucb1400_ts *ucb = dev_get_platdata(&pdev->dev);
|
||||
|
||||
free_irq(ucb->irq, ucb);
|
||||
input_unregister_device(ucb->ts_idev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __maybe_unused ucb1400_ts_suspend(struct device *dev)
|
||||
{
|
||||
struct ucb1400_ts *ucb = dev_get_platdata(dev);
|
||||
struct input_dev *idev = ucb->ts_idev;
|
||||
|
||||
mutex_lock(&idev->mutex);
|
||||
|
||||
if (input_device_enabled(idev))
|
||||
ucb1400_ts_stop(ucb);
|
||||
|
||||
mutex_unlock(&idev->mutex);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __maybe_unused ucb1400_ts_resume(struct device *dev)
|
||||
{
|
||||
struct ucb1400_ts *ucb = dev_get_platdata(dev);
|
||||
struct input_dev *idev = ucb->ts_idev;
|
||||
|
||||
mutex_lock(&idev->mutex);
|
||||
|
||||
if (input_device_enabled(idev))
|
||||
ucb1400_ts_start(ucb);
|
||||
|
||||
mutex_unlock(&idev->mutex);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static SIMPLE_DEV_PM_OPS(ucb1400_ts_pm_ops,
|
||||
ucb1400_ts_suspend, ucb1400_ts_resume);
|
||||
|
||||
static struct platform_driver ucb1400_ts_driver = {
|
||||
.probe = ucb1400_ts_probe,
|
||||
.remove = ucb1400_ts_remove,
|
||||
.driver = {
|
||||
.name = "ucb1400_ts",
|
||||
.pm = &ucb1400_ts_pm_ops,
|
||||
},
|
||||
};
|
||||
module_platform_driver(ucb1400_ts_driver);
|
||||
|
||||
module_param(adcsync, bool, 0444);
|
||||
MODULE_PARM_DESC(adcsync, "Synchronize touch readings with ADCSYNC pin.");
|
||||
|
||||
module_param(ts_delay, int, 0444);
|
||||
MODULE_PARM_DESC(ts_delay, "Delay between panel setup and"
|
||||
" position read. Default = 55us.");
|
||||
|
||||
module_param(ts_delay_pressure, int, 0444);
|
||||
MODULE_PARM_DESC(ts_delay_pressure,
|
||||
"delay between panel setup and pressure read."
|
||||
" Default = 0us.");
|
||||
|
||||
MODULE_DESCRIPTION("Philips UCB1400 touchscreen driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
@ -1071,17 +1071,6 @@ config PCF50633_GPIO
|
||||
Say yes here if you want to include support GPIO for pins on
|
||||
the PCF50633 chip.
|
||||
|
||||
config UCB1400_CORE
|
||||
tristate "Philips UCB1400 Core driver"
|
||||
depends on AC97_BUS
|
||||
depends on GPIOLIB
|
||||
help
|
||||
This enables support for the Philips UCB1400 core functions.
|
||||
The UCB1400 is an AC97 audio codec.
|
||||
|
||||
To compile this driver as a module, choose M here: the
|
||||
module will be called ucb1400_core.
|
||||
|
||||
config MFD_PM8XXX
|
||||
tristate "Qualcomm PM8xxx PMIC chips driver"
|
||||
depends on (ARM || HEXAGON || COMPILE_TEST)
|
||||
|
||||
@ -127,7 +127,6 @@ obj-$(CONFIG_MCP_UCB1200_TS) += ucb1x00-ts.o
|
||||
ifeq ($(CONFIG_SA1100_ASSABET),y)
|
||||
obj-$(CONFIG_MCP_UCB1200) += ucb1x00-assabet.o
|
||||
endif
|
||||
obj-$(CONFIG_UCB1400_CORE) += ucb1400_core.o
|
||||
|
||||
obj-$(CONFIG_PMIC_DA903X) += da903x.o
|
||||
|
||||
|
||||
@ -1,158 +0,0 @@
|
||||
// SPDX-License-Identifier: GPL-2.0-only
|
||||
/*
|
||||
* Core functions for:
|
||||
* Philips UCB1400 multifunction chip
|
||||
*
|
||||
* Based on ucb1400_ts.c:
|
||||
* Author: Nicolas Pitre
|
||||
* Created: September 25, 2006
|
||||
* Copyright: MontaVista Software, Inc.
|
||||
*
|
||||
* Spliting done by: Marek Vasut <marek.vasut@gmail.com>
|
||||
* If something doesn't work and it worked before spliting, e-mail me,
|
||||
* dont bother Nicolas please ;-)
|
||||
*
|
||||
* This code is heavily based on ucb1x00-*.c copyrighted by Russell King
|
||||
* covering the UCB1100, UCB1200 and UCB1300.. Support for the UCB1400 has
|
||||
* been made separate from ucb1x00-core/ucb1x00-ts on Russell's request.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/ucb1400.h>
|
||||
|
||||
unsigned int ucb1400_adc_read(struct snd_ac97 *ac97, u16 adc_channel,
|
||||
int adcsync)
|
||||
{
|
||||
unsigned int val;
|
||||
|
||||
if (adcsync)
|
||||
adc_channel |= UCB_ADC_SYNC_ENA;
|
||||
|
||||
ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA | adc_channel);
|
||||
ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA | adc_channel |
|
||||
UCB_ADC_START);
|
||||
|
||||
while (!((val = ucb1400_reg_read(ac97, UCB_ADC_DATA))
|
||||
& UCB_ADC_DAT_VALID))
|
||||
schedule_timeout_uninterruptible(1);
|
||||
|
||||
return val & UCB_ADC_DAT_MASK;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(ucb1400_adc_read);
|
||||
|
||||
static int ucb1400_core_probe(struct device *dev)
|
||||
{
|
||||
int err;
|
||||
struct ucb1400 *ucb;
|
||||
struct ucb1400_ts ucb_ts;
|
||||
struct ucb1400_gpio ucb_gpio;
|
||||
struct snd_ac97 *ac97;
|
||||
struct ucb1400_pdata *pdata = dev_get_platdata(dev);
|
||||
|
||||
memset(&ucb_ts, 0, sizeof(ucb_ts));
|
||||
memset(&ucb_gpio, 0, sizeof(ucb_gpio));
|
||||
|
||||
ucb = kzalloc(sizeof(struct ucb1400), GFP_KERNEL);
|
||||
if (!ucb) {
|
||||
err = -ENOMEM;
|
||||
goto err;
|
||||
}
|
||||
|
||||
dev_set_drvdata(dev, ucb);
|
||||
|
||||
ac97 = to_ac97_t(dev);
|
||||
|
||||
ucb_ts.id = ucb1400_reg_read(ac97, UCB_ID);
|
||||
if (ucb_ts.id != UCB_ID_1400) {
|
||||
err = -ENODEV;
|
||||
goto err0;
|
||||
}
|
||||
|
||||
/* GPIO */
|
||||
ucb_gpio.ac97 = ac97;
|
||||
if (pdata)
|
||||
ucb_gpio.gpio_offset = pdata->gpio_offset;
|
||||
|
||||
ucb->ucb1400_gpio = platform_device_alloc("ucb1400_gpio", -1);
|
||||
if (!ucb->ucb1400_gpio) {
|
||||
err = -ENOMEM;
|
||||
goto err0;
|
||||
}
|
||||
err = platform_device_add_data(ucb->ucb1400_gpio, &ucb_gpio,
|
||||
sizeof(ucb_gpio));
|
||||
if (err)
|
||||
goto err1;
|
||||
err = platform_device_add(ucb->ucb1400_gpio);
|
||||
if (err)
|
||||
goto err1;
|
||||
|
||||
/* TOUCHSCREEN */
|
||||
ucb_ts.ac97 = ac97;
|
||||
|
||||
if (pdata != NULL && pdata->irq >= 0)
|
||||
ucb_ts.irq = pdata->irq;
|
||||
else
|
||||
ucb_ts.irq = -1;
|
||||
|
||||
ucb->ucb1400_ts = platform_device_alloc("ucb1400_ts", -1);
|
||||
if (!ucb->ucb1400_ts) {
|
||||
err = -ENOMEM;
|
||||
goto err2;
|
||||
}
|
||||
err = platform_device_add_data(ucb->ucb1400_ts, &ucb_ts,
|
||||
sizeof(ucb_ts));
|
||||
if (err)
|
||||
goto err3;
|
||||
err = platform_device_add(ucb->ucb1400_ts);
|
||||
if (err)
|
||||
goto err3;
|
||||
|
||||
return 0;
|
||||
|
||||
err3:
|
||||
platform_device_put(ucb->ucb1400_ts);
|
||||
err2:
|
||||
platform_device_del(ucb->ucb1400_gpio);
|
||||
err1:
|
||||
platform_device_put(ucb->ucb1400_gpio);
|
||||
err0:
|
||||
kfree(ucb);
|
||||
err:
|
||||
return err;
|
||||
}
|
||||
|
||||
static int ucb1400_core_remove(struct device *dev)
|
||||
{
|
||||
struct ucb1400 *ucb = dev_get_drvdata(dev);
|
||||
|
||||
platform_device_unregister(ucb->ucb1400_ts);
|
||||
platform_device_unregister(ucb->ucb1400_gpio);
|
||||
|
||||
kfree(ucb);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct device_driver ucb1400_core_driver = {
|
||||
.name = "ucb1400_core",
|
||||
.bus = &ac97_bus_type,
|
||||
.probe = ucb1400_core_probe,
|
||||
.remove = ucb1400_core_remove,
|
||||
};
|
||||
|
||||
static int __init ucb1400_core_init(void)
|
||||
{
|
||||
return driver_register(&ucb1400_core_driver);
|
||||
}
|
||||
|
||||
static void __exit ucb1400_core_exit(void)
|
||||
{
|
||||
driver_unregister(&ucb1400_core_driver);
|
||||
}
|
||||
|
||||
module_init(ucb1400_core_init);
|
||||
module_exit(ucb1400_core_exit);
|
||||
|
||||
MODULE_DESCRIPTION("Philips UCB1400 driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
@ -1,160 +0,0 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-only */
|
||||
/*
|
||||
* Register definitions and functions for:
|
||||
* Philips UCB1400 driver
|
||||
*
|
||||
* Based on ucb1400_ts:
|
||||
* Author: Nicolas Pitre
|
||||
* Created: September 25, 2006
|
||||
* Copyright: MontaVista Software, Inc.
|
||||
*
|
||||
* Spliting done by: Marek Vasut <marek.vasut@gmail.com>
|
||||
* If something doesn't work and it worked before spliting, e-mail me,
|
||||
* dont bother Nicolas please ;-)
|
||||
*
|
||||
* This code is heavily based on ucb1x00-*.c copyrighted by Russell King
|
||||
* covering the UCB1100, UCB1200 and UCB1300.. Support for the UCB1400 has
|
||||
* been made separate from ucb1x00-core/ucb1x00-ts on Russell's request.
|
||||
*/
|
||||
|
||||
#ifndef _LINUX__UCB1400_H
|
||||
#define _LINUX__UCB1400_H
|
||||
|
||||
#include <sound/ac97_codec.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/gpio/driver.h>
|
||||
|
||||
/*
|
||||
* UCB1400 AC-link registers
|
||||
*/
|
||||
|
||||
#define UCB_IO_DATA 0x5a
|
||||
#define UCB_IO_DIR 0x5c
|
||||
#define UCB_IE_RIS 0x5e
|
||||
#define UCB_IE_FAL 0x60
|
||||
#define UCB_IE_STATUS 0x62
|
||||
#define UCB_IE_CLEAR 0x62
|
||||
#define UCB_IE_ADC (1 << 11)
|
||||
#define UCB_IE_TSPX (1 << 12)
|
||||
|
||||
#define UCB_TS_CR 0x64
|
||||
#define UCB_TS_CR_TSMX_POW (1 << 0)
|
||||
#define UCB_TS_CR_TSPX_POW (1 << 1)
|
||||
#define UCB_TS_CR_TSMY_POW (1 << 2)
|
||||
#define UCB_TS_CR_TSPY_POW (1 << 3)
|
||||
#define UCB_TS_CR_TSMX_GND (1 << 4)
|
||||
#define UCB_TS_CR_TSPX_GND (1 << 5)
|
||||
#define UCB_TS_CR_TSMY_GND (1 << 6)
|
||||
#define UCB_TS_CR_TSPY_GND (1 << 7)
|
||||
#define UCB_TS_CR_MODE_INT (0 << 8)
|
||||
#define UCB_TS_CR_MODE_PRES (1 << 8)
|
||||
#define UCB_TS_CR_MODE_POS (2 << 8)
|
||||
#define UCB_TS_CR_BIAS_ENA (1 << 11)
|
||||
#define UCB_TS_CR_TSPX_LOW (1 << 12)
|
||||
#define UCB_TS_CR_TSMX_LOW (1 << 13)
|
||||
|
||||
#define UCB_ADC_CR 0x66
|
||||
#define UCB_ADC_SYNC_ENA (1 << 0)
|
||||
#define UCB_ADC_VREFBYP_CON (1 << 1)
|
||||
#define UCB_ADC_INP_TSPX (0 << 2)
|
||||
#define UCB_ADC_INP_TSMX (1 << 2)
|
||||
#define UCB_ADC_INP_TSPY (2 << 2)
|
||||
#define UCB_ADC_INP_TSMY (3 << 2)
|
||||
#define UCB_ADC_INP_AD0 (4 << 2)
|
||||
#define UCB_ADC_INP_AD1 (5 << 2)
|
||||
#define UCB_ADC_INP_AD2 (6 << 2)
|
||||
#define UCB_ADC_INP_AD3 (7 << 2)
|
||||
#define UCB_ADC_EXT_REF (1 << 5)
|
||||
#define UCB_ADC_START (1 << 7)
|
||||
#define UCB_ADC_ENA (1 << 15)
|
||||
|
||||
#define UCB_ADC_DATA 0x68
|
||||
#define UCB_ADC_DAT_VALID (1 << 15)
|
||||
|
||||
#define UCB_FCSR 0x6c
|
||||
#define UCB_FCSR_AVE (1 << 12)
|
||||
|
||||
#define UCB_ADC_DAT_MASK 0x3ff
|
||||
|
||||
#define UCB_ID 0x7e
|
||||
#define UCB_ID_1400 0x4304
|
||||
|
||||
struct ucb1400_gpio {
|
||||
struct gpio_chip gc;
|
||||
struct snd_ac97 *ac97;
|
||||
int gpio_offset;
|
||||
};
|
||||
|
||||
struct ucb1400_ts {
|
||||
struct input_dev *ts_idev;
|
||||
int id;
|
||||
int irq;
|
||||
struct snd_ac97 *ac97;
|
||||
wait_queue_head_t ts_wait;
|
||||
bool stopped;
|
||||
};
|
||||
|
||||
struct ucb1400 {
|
||||
struct platform_device *ucb1400_ts;
|
||||
struct platform_device *ucb1400_gpio;
|
||||
};
|
||||
|
||||
struct ucb1400_pdata {
|
||||
int irq;
|
||||
int gpio_offset;
|
||||
int (*gpio_setup)(struct device *dev, int ngpio);
|
||||
int (*gpio_teardown)(struct device *dev, int ngpio);
|
||||
};
|
||||
|
||||
static inline u16 ucb1400_reg_read(struct snd_ac97 *ac97, u16 reg)
|
||||
{
|
||||
return ac97->bus->ops->read(ac97, reg);
|
||||
}
|
||||
|
||||
static inline void ucb1400_reg_write(struct snd_ac97 *ac97, u16 reg, u16 val)
|
||||
{
|
||||
ac97->bus->ops->write(ac97, reg, val);
|
||||
}
|
||||
|
||||
static inline u16 ucb1400_gpio_get_value(struct snd_ac97 *ac97, u16 gpio)
|
||||
{
|
||||
return ucb1400_reg_read(ac97, UCB_IO_DATA) & (1 << gpio);
|
||||
}
|
||||
|
||||
static inline void ucb1400_gpio_set_value(struct snd_ac97 *ac97, u16 gpio,
|
||||
u16 val)
|
||||
{
|
||||
ucb1400_reg_write(ac97, UCB_IO_DATA, val ?
|
||||
ucb1400_reg_read(ac97, UCB_IO_DATA) | (1 << gpio) :
|
||||
ucb1400_reg_read(ac97, UCB_IO_DATA) & ~(1 << gpio));
|
||||
}
|
||||
|
||||
static inline u16 ucb1400_gpio_get_direction(struct snd_ac97 *ac97, u16 gpio)
|
||||
{
|
||||
return ucb1400_reg_read(ac97, UCB_IO_DIR) & (1 << gpio);
|
||||
}
|
||||
|
||||
static inline void ucb1400_gpio_set_direction(struct snd_ac97 *ac97, u16 gpio,
|
||||
u16 dir)
|
||||
{
|
||||
ucb1400_reg_write(ac97, UCB_IO_DIR, dir ?
|
||||
ucb1400_reg_read(ac97, UCB_IO_DIR) | (1 << gpio) :
|
||||
ucb1400_reg_read(ac97, UCB_IO_DIR) & ~(1 << gpio));
|
||||
}
|
||||
|
||||
static inline void ucb1400_adc_enable(struct snd_ac97 *ac97)
|
||||
{
|
||||
ucb1400_reg_write(ac97, UCB_ADC_CR, UCB_ADC_ENA);
|
||||
}
|
||||
|
||||
static inline void ucb1400_adc_disable(struct snd_ac97 *ac97)
|
||||
{
|
||||
ucb1400_reg_write(ac97, UCB_ADC_CR, 0);
|
||||
}
|
||||
|
||||
|
||||
unsigned int ucb1400_adc_read(struct snd_ac97 *ac97, u16 adc_channel,
|
||||
int adcsync);
|
||||
|
||||
#endif
|
||||
@ -107,7 +107,6 @@ endif # !UML
|
||||
|
||||
endif # SOUND
|
||||
|
||||
# AC97_BUS is used from both sound and ucb1400
|
||||
config AC97_BUS
|
||||
tristate
|
||||
help
|
||||
|
||||
@ -152,7 +152,6 @@ static const struct ac97_codec_id snd_ac97_codec_ids[] = {
|
||||
{ 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL, NULL }, // only guess --jk
|
||||
{ 0x4e534331, 0xffffffff, "LM4549", NULL, NULL },
|
||||
{ 0x4e534350, 0xffffffff, "LM4550", patch_lm4550, NULL }, // volume wrap fix
|
||||
{ 0x50534304, 0xffffffff, "UCB1400", patch_ucb1400, NULL },
|
||||
{ 0x53494c20, 0xffffffe0, "Si3036,8", mpatch_si3036, mpatch_si3036, AC97_MODEM_PATCH },
|
||||
{ 0x53544d02, 0xffffffff, "ST7597", NULL, NULL },
|
||||
{ 0x54524102, 0xffffffff, "TR28022", NULL, NULL },
|
||||
|
||||
@ -3937,43 +3937,3 @@ static int patch_lm4550(struct snd_ac97 *ac97)
|
||||
ac97->res_table = lm4550_restbl;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* UCB1400 codec (http://www.semiconductors.philips.com/acrobat_download/datasheets/UCB1400-02.pdf)
|
||||
*/
|
||||
static const struct snd_kcontrol_new snd_ac97_controls_ucb1400[] = {
|
||||
/* enable/disable headphone driver which allows direct connection to
|
||||
stereo headphone without the use of external DC blocking
|
||||
capacitors */
|
||||
AC97_SINGLE("Headphone Driver", 0x6a, 6, 1, 0),
|
||||
/* Filter used to compensate the DC offset is added in the ADC to remove idle
|
||||
tones from the audio band. */
|
||||
AC97_SINGLE("DC Filter", 0x6a, 4, 1, 0),
|
||||
/* Control smart-low-power mode feature. Allows automatic power down
|
||||
of unused blocks in the ADC analog front end and the PLL. */
|
||||
AC97_SINGLE("Smart Low Power Mode", 0x6c, 4, 3, 0),
|
||||
};
|
||||
|
||||
static int patch_ucb1400_specific(struct snd_ac97 * ac97)
|
||||
{
|
||||
int idx, err;
|
||||
for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_ucb1400); idx++) {
|
||||
err = snd_ctl_add(ac97->bus->card, snd_ctl_new1(&snd_ac97_controls_ucb1400[idx], ac97));
|
||||
if (err < 0)
|
||||
return err;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct snd_ac97_build_ops patch_ucb1400_ops = {
|
||||
.build_specific = patch_ucb1400_specific,
|
||||
};
|
||||
|
||||
static int patch_ucb1400(struct snd_ac97 * ac97)
|
||||
{
|
||||
ac97->build_ops = &patch_ucb1400_ops;
|
||||
/* enable headphone driver and smart low power mode by default */
|
||||
snd_ac97_write_cache(ac97, 0x6a, 0x0050);
|
||||
snd_ac97_write_cache(ac97, 0x6c, 0x0030);
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user