leds: Remove asic3 driver
Since ASIC3 MFD driver is removed, the LED support is also obsolete. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230105134622.254560-25-arnd@kernel.org
This commit is contained in:
Arnd Bergmann
Lee Jones
parent
c64964ebee
commit
0ca222c819
3 changed files with 0 additions and 189 deletions
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@ -631,17 +631,6 @@ config LEDS_NETXBIG
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and 5Big Network v2 boards. The LEDs are wired to a CPLD and are
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and 5Big Network v2 boards. The LEDs are wired to a CPLD and are
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controlled through a GPIO extension bus.
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controlled through a GPIO extension bus.
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config LEDS_ASIC3
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bool "LED support for the HTC ASIC3"
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depends on LEDS_CLASS=y
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depends on MFD_ASIC3
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default y
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help
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This option enables support for the LEDs on the HTC ASIC3. The HTC
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ASIC3 LED GPIOs are inputs, not outputs, thus the leds-gpio driver
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cannot be used. This driver supports hardware blinking with an on+off
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period from 62ms to 125s. Say Y to enable LEDs on the HP iPAQ hx4700.
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config LEDS_TCA6507
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config LEDS_TCA6507
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tristate "LED Support for TCA6507 I2C chip"
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tristate "LED Support for TCA6507 I2C chip"
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depends on LEDS_CLASS && I2C
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depends on LEDS_CLASS && I2C
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@ -14,7 +14,6 @@ obj-$(CONFIG_LEDS_ADP5520) += leds-adp5520.o
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obj-$(CONFIG_LEDS_AN30259A) += leds-an30259a.o
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obj-$(CONFIG_LEDS_AN30259A) += leds-an30259a.o
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obj-$(CONFIG_LEDS_APU) += leds-apu.o
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obj-$(CONFIG_LEDS_APU) += leds-apu.o
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obj-$(CONFIG_LEDS_ARIEL) += leds-ariel.o
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obj-$(CONFIG_LEDS_ARIEL) += leds-ariel.o
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obj-$(CONFIG_LEDS_ASIC3) += leds-asic3.o
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obj-$(CONFIG_LEDS_AW2013) += leds-aw2013.o
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obj-$(CONFIG_LEDS_AW2013) += leds-aw2013.o
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obj-$(CONFIG_LEDS_BCM6328) += leds-bcm6328.o
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obj-$(CONFIG_LEDS_BCM6328) += leds-bcm6328.o
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obj-$(CONFIG_LEDS_BCM6358) += leds-bcm6358.o
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obj-$(CONFIG_LEDS_BCM6358) += leds-bcm6358.o
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@ -1,177 +0,0 @@
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2011 Paul Parsons <lost.distance@yahoo.com>
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*/
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/leds.h>
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#include <linux/slab.h>
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#include <linux/mfd/asic3.h>
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#include <linux/mfd/core.h>
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#include <linux/module.h>
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/*
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* The HTC ASIC3 LED GPIOs are inputs, not outputs.
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* Hence we turn the LEDs on/off via the TimeBase register.
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*/
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/*
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* When TimeBase is 4 the clock resolution is about 32Hz.
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* This driver supports hardware blinking with an on+off
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* period from 62ms (2 clocks) to 125s (4000 clocks).
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*/
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#define MS_TO_CLK(ms) DIV_ROUND_CLOSEST(((ms)*1024), 32000)
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#define CLK_TO_MS(clk) (((clk)*32000)/1024)
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#define MAX_CLK 4000 /* Fits into 12-bit Time registers */
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#define MAX_MS CLK_TO_MS(MAX_CLK)
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static const unsigned int led_n_base[ASIC3_NUM_LEDS] = {
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[0] = ASIC3_LED_0_Base,
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[1] = ASIC3_LED_1_Base,
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[2] = ASIC3_LED_2_Base,
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};
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static void brightness_set(struct led_classdev *cdev,
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enum led_brightness value)
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{
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struct platform_device *pdev = to_platform_device(cdev->dev->parent);
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const struct mfd_cell *cell = mfd_get_cell(pdev);
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struct asic3 *asic = dev_get_drvdata(pdev->dev.parent);
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u32 timebase;
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unsigned int base;
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timebase = (value == LED_OFF) ? 0 : (LED_EN|0x4);
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base = led_n_base[cell->id];
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asic3_write_register(asic, (base + ASIC3_LED_PeriodTime), 32);
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asic3_write_register(asic, (base + ASIC3_LED_DutyTime), 32);
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asic3_write_register(asic, (base + ASIC3_LED_AutoStopCount), 0);
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asic3_write_register(asic, (base + ASIC3_LED_TimeBase), timebase);
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}
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static int blink_set(struct led_classdev *cdev,
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unsigned long *delay_on,
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unsigned long *delay_off)
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{
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struct platform_device *pdev = to_platform_device(cdev->dev->parent);
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const struct mfd_cell *cell = mfd_get_cell(pdev);
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struct asic3 *asic = dev_get_drvdata(pdev->dev.parent);
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u32 on;
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u32 off;
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unsigned int base;
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if (*delay_on > MAX_MS || *delay_off > MAX_MS)
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return -EINVAL;
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if (*delay_on == 0 && *delay_off == 0) {
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/* If both are zero then a sensible default should be chosen */
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on = MS_TO_CLK(500);
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off = MS_TO_CLK(500);
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} else {
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on = MS_TO_CLK(*delay_on);
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off = MS_TO_CLK(*delay_off);
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if ((on + off) > MAX_CLK)
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return -EINVAL;
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}
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base = led_n_base[cell->id];
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asic3_write_register(asic, (base + ASIC3_LED_PeriodTime), (on + off));
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asic3_write_register(asic, (base + ASIC3_LED_DutyTime), on);
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asic3_write_register(asic, (base + ASIC3_LED_AutoStopCount), 0);
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asic3_write_register(asic, (base + ASIC3_LED_TimeBase), (LED_EN|0x4));
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*delay_on = CLK_TO_MS(on);
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*delay_off = CLK_TO_MS(off);
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return 0;
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}
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static int asic3_led_probe(struct platform_device *pdev)
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{
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struct asic3_led *led = dev_get_platdata(&pdev->dev);
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int ret;
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ret = mfd_cell_enable(pdev);
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if (ret < 0)
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return ret;
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led->cdev = devm_kzalloc(&pdev->dev, sizeof(struct led_classdev),
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GFP_KERNEL);
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if (!led->cdev) {
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ret = -ENOMEM;
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goto out;
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}
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led->cdev->name = led->name;
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led->cdev->flags = LED_CORE_SUSPENDRESUME;
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led->cdev->brightness_set = brightness_set;
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led->cdev->blink_set = blink_set;
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led->cdev->default_trigger = led->default_trigger;
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ret = led_classdev_register(&pdev->dev, led->cdev);
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if (ret < 0)
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goto out;
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return 0;
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out:
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(void) mfd_cell_disable(pdev);
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return ret;
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}
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static int asic3_led_remove(struct platform_device *pdev)
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{
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struct asic3_led *led = dev_get_platdata(&pdev->dev);
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led_classdev_unregister(led->cdev);
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return mfd_cell_disable(pdev);
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}
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#ifdef CONFIG_PM_SLEEP
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static int asic3_led_suspend(struct device *dev)
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{
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struct platform_device *pdev = to_platform_device(dev);
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const struct mfd_cell *cell = mfd_get_cell(pdev);
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int ret;
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ret = 0;
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if (cell->suspend)
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ret = (*cell->suspend)(pdev);
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return ret;
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}
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static int asic3_led_resume(struct device *dev)
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{
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struct platform_device *pdev = to_platform_device(dev);
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const struct mfd_cell *cell = mfd_get_cell(pdev);
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int ret;
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ret = 0;
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if (cell->resume)
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ret = (*cell->resume)(pdev);
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return ret;
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}
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#endif
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static SIMPLE_DEV_PM_OPS(asic3_led_pm_ops, asic3_led_suspend, asic3_led_resume);
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static struct platform_driver asic3_led_driver = {
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.probe = asic3_led_probe,
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.remove = asic3_led_remove,
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.driver = {
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.name = "leds-asic3",
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.pm = &asic3_led_pm_ops,
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},
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};
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module_platform_driver(asic3_led_driver);
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MODULE_AUTHOR("Paul Parsons <lost.distance@yahoo.com>");
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MODULE_DESCRIPTION("HTC ASIC3 LED driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:leds-asic3");
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