mirror of
https://github.com/torvalds/linux
synced 2024-10-10 13:24:04 +00:00
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 ...
101 lines
2.2 KiB
C
101 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* arch/arm/plat-iop/i2c.c
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*
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* Author: Nicolas Pitre <nico@cam.org>
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* Copyright (C) 2001 MontaVista Software, Inc.
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* Copyright (C) 2004 Intel Corporation.
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*/
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#include <linux/mm.h>
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#include <linux/init.h>
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#include <linux/major.h>
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#include <linux/fs.h>
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#include <linux/platform_device.h>
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#include <linux/serial.h>
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#include <linux/tty.h>
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#include <linux/serial_core.h>
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#include <linux/io.h>
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#include <linux/gpio/machine.h>
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#include <asm/pgtable.h>
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#include <asm/page.h>
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#include <asm/mach/map.h>
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#include <asm/setup.h>
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#include <asm/memory.h>
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#include <mach/hardware.h>
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#include <asm/hardware/iop3xx.h>
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#include <asm/mach/arch.h>
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#ifdef CONFIG_ARCH_IOP32X
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#define IRQ_IOP3XX_I2C_0 IRQ_IOP32X_I2C_0
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#define IRQ_IOP3XX_I2C_1 IRQ_IOP32X_I2C_1
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#endif
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#ifdef CONFIG_ARCH_IOP33X
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#define IRQ_IOP3XX_I2C_0 IRQ_IOP33X_I2C_0
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#define IRQ_IOP3XX_I2C_1 IRQ_IOP33X_I2C_1
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#endif
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/*
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* Each of the I2C busses have corresponding GPIO lines, and the driver
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* need to access these directly to drive the bus low at times.
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*/
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struct gpiod_lookup_table iop3xx_i2c0_gpio_lookup = {
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.dev_id = "IOP3xx-I2C.0",
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.table = {
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GPIO_LOOKUP("gpio-iop", 7, "scl", GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP("gpio-iop", 6, "sda", GPIO_ACTIVE_HIGH),
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{ }
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},
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};
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struct gpiod_lookup_table iop3xx_i2c1_gpio_lookup = {
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.dev_id = "IOP3xx-I2C.1",
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.table = {
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GPIO_LOOKUP("gpio-iop", 5, "scl", GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP("gpio-iop", 4, "sda", GPIO_ACTIVE_HIGH),
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{ }
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},
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};
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static struct resource iop3xx_i2c0_resources[] = {
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[0] = {
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.start = 0xfffff680,
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.end = 0xfffff697,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = IRQ_IOP3XX_I2C_0,
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.end = IRQ_IOP3XX_I2C_0,
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.flags = IORESOURCE_IRQ,
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},
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};
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struct platform_device iop3xx_i2c0_device = {
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.name = "IOP3xx-I2C",
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.id = 0,
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.num_resources = 2,
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.resource = iop3xx_i2c0_resources,
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};
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static struct resource iop3xx_i2c1_resources[] = {
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[0] = {
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.start = 0xfffff6a0,
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.end = 0xfffff6b7,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = IRQ_IOP3XX_I2C_1,
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.end = IRQ_IOP3XX_I2C_1,
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.flags = IORESOURCE_IRQ,
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}
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};
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struct platform_device iop3xx_i2c1_device = {
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.name = "IOP3xx-I2C",
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.id = 1,
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.num_resources = 2,
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.resource = iop3xx_i2c1_resources,
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};
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