05f8dd9ab9
Introduce a Kconfig variable that the SoC can set to indicate the number of instances in Device Tree. This also fixes the accuracy of the Elkhart Lake instance count where the code was previously assuming up to 12 instances even though DT lists 15 nodes. Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
/*
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* Copyright (c) 2019 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* This file is a template for cmake and is not meant to be used directly!
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*/
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#if DT_NODE_HAS_STATUS(DT_DRV_INST(@NUM@), okay)
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static void i2c_config_@NUM@(const struct device *port);
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static const struct i2c_dw_rom_config i2c_config_dw_@NUM@ = {
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DEVICE_MMIO_ROM_INIT(DT_DRV_INST(@NUM@)),
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.config_func = i2c_config_@NUM@,
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.bitrate = DT_INST_PROP(@NUM@, clock_frequency),
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#if DT_INST_ON_BUS(@NUM@, pcie)
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.pcie = true,
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.pcie_bdf = DT_INST_REG_ADDR(@NUM@),
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.pcie_id = DT_INST_REG_SIZE(@NUM@),
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#endif
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};
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static struct i2c_dw_dev_config i2c_@NUM@_runtime;
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DEVICE_DT_INST_DEFINE(@NUM@, &i2c_dw_initialize, device_pm_control_nop,
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&i2c_@NUM@_runtime, &i2c_config_dw_@NUM@,
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POST_KERNEL, CONFIG_I2C_INIT_PRIORITY,
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&funcs);
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#if DT_INST_IRQ_HAS_CELL(@NUM@, sense)
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#define INST_@NUM@_IRQ_FLAGS DT_INST_IRQ(@NUM@, sense)
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#else
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#define INST_@NUM@_IRQ_FLAGS 0
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#endif
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static void i2c_config_@NUM@(const struct device *port)
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{
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ARG_UNUSED(port);
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#if DT_INST_ON_BUS(@NUM@, pcie)
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#if DT_INST_IRQN(@NUM@) == PCIE_IRQ_DETECT
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/* PCI(e) with auto IRQ detection */
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BUILD_ASSERT(IS_ENABLED(CONFIG_DYNAMIC_INTERRUPTS),
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"DW I2C PCI auto-IRQ needs CONFIG_DYNAMIC_INTERRUPTS");
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unsigned int irq;
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irq = pcie_alloc_irq(DT_INST_REG_ADDR(@NUM@));
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if (irq == PCIE_CONF_INTR_IRQ_NONE) {
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return;
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}
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irq_connect_dynamic(irq,
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DT_INST_IRQ(@NUM@, priority),
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(void (*)(const void *))i2c_dw_isr,
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DEVICE_DT_INST_GET(@NUM@), INST_@NUM@_IRQ_FLAGS);
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pcie_irq_enable(DT_INST_REG_ADDR(@NUM@), irq);
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#else
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/* PCI(e) with fixed or MSI IRQ */
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IRQ_CONNECT(DT_INST_IRQN(@NUM@),
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DT_INST_IRQ(@NUM@, priority),
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i2c_dw_isr, DEVICE_DT_INST_GET(@NUM@),
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INST_@NUM@_IRQ_FLAGS);
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pcie_irq_enable(DT_INST_REG_ADDR(@NUM@),
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DT_INST_IRQN(@NUM@));
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#endif
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#else
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/* not PCI(e) */
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IRQ_CONNECT(DT_INST_IRQN(@NUM@),
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DT_INST_IRQ(@NUM@, priority),
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i2c_dw_isr, DEVICE_DT_INST_GET(@NUM@),
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INST_@NUM@_IRQ_FLAGS);
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irq_enable(DT_INST_IRQN(@NUM@));
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#endif
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}
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#endif /* DT_NODE_HAS_STATUS(DT_DRV_INST(@NUM@), okay) */
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/* Include subsequent instances */
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#if @NEXT_NUM@ < CONFIG_I2C_DW_MAX_INSTANCES
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#include <i2c_dw_port_@NEXT_NUM@.h>
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#endif
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