273cbf61c3
Pull i2c updates from Wolfram Sang: "New stuff from the I2C world: - in the core, getting irqs from ACPI is now similar to OF - new driver for MediaTek MT7621/7628/7688 SoCs - bcm2835, i801, and tegra drivers got some more attention - GPIO API cleanups - cleanups in the core headers - lots of usual driver updates" * 'i2c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (74 commits) i2c: mt7621: Fix platform_no_drv_owner.cocci warnings i2c: cpm: remove casting dma_alloc dt-bindings: i2c: sun6i-p2wi: Fix the binding example dt-bindings: i2c: mv64xxx: Fix the example compatible i2c: i801: Documentation update i2c: i801: Add support for Intel Tiger Lake i2c: i801: Fix PCI ID sorting dt-bindings: i2c-stm32: document optional dmas i2c: i2c-stm32f7: Add I2C_SMBUS_I2C_BLOCK_DATA support i2c: core: Tidy up handling of init_irq i2c: core: Move ACPI gpio IRQ handling into i2c_acpi_get_irq i2c: core: Move ACPI IRQ handling to probe time i2c: acpi: Factor out getting the IRQ from ACPI i2c: acpi: Use available IRQ helper functions i2c: core: Allow whole core to use i2c_dev_irq_from_resources eeprom: at24: modify a comment referring to platform data dt-bindings: i2c: omap: Add new compatible for J721E SoCs dt-bindings: i2c: mv64xxx: Add YAML schemas dt-bindings: i2c: sun6i-p2wi: Add YAML schemas i2c: mt7621: Add MediaTek MT7621/7628/7688 I2C driver ...
60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* arch/arm/plat-iop/gpio.c
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* GPIO handling for Intel IOP3xx processors.
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*
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* Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
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*/
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#include <linux/err.h>
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#include <linux/module.h>
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#include <linux/gpio/driver.h>
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#include <linux/platform_device.h>
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#define IOP3XX_GPOE 0x0000
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#define IOP3XX_GPID 0x0004
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#define IOP3XX_GPOD 0x0008
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static int iop3xx_gpio_probe(struct platform_device *pdev)
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{
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struct gpio_chip *gc;
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void __iomem *base;
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int err;
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gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
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if (!gc)
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return -ENOMEM;
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base = devm_platform_ioremap_resource(pdev, 0);
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if (IS_ERR(base))
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return PTR_ERR(base);
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err = bgpio_init(gc, &pdev->dev, 1, base + IOP3XX_GPID,
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base + IOP3XX_GPOD, NULL, NULL, base + IOP3XX_GPOE, 0);
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if (err)
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return err;
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gc->base = 0;
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gc->owner = THIS_MODULE;
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gc->label = "gpio-iop";
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return devm_gpiochip_add_data(&pdev->dev, gc, NULL);
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}
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static struct platform_driver iop3xx_gpio_driver = {
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.driver = {
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.name = "gpio-iop",
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},
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.probe = iop3xx_gpio_probe,
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};
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static int __init iop3xx_gpio_init(void)
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{
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return platform_driver_register(&iop3xx_gpio_driver);
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}
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arch_initcall(iop3xx_gpio_init);
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MODULE_DESCRIPTION("GPIO handling for Intel IOP3xx processors");
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MODULE_AUTHOR("Lennert Buytenhek <buytenh@wantstofly.org>");
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MODULE_LICENSE("GPL");
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