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88 lines
1.6 KiB
88 lines
1.6 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Core driver for Renesas Synchronization Management Unit (SMU) devices. |
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* |
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* Copyright (C) 2021 Integrated Device Technology, Inc., a Renesas Company. |
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*/ |
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#include <linux/init.h> |
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#include <linux/kernel.h> |
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#include <linux/mfd/core.h> |
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#include <linux/mfd/rsmu.h> |
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#include <linux/module.h> |
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#include <linux/of.h> |
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#include <linux/regmap.h> |
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#include <linux/slab.h> |
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#include "rsmu.h" |
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enum { |
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RSMU_PHC = 0, |
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RSMU_CDEV = 1, |
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RSMU_N_DEVS = 2, |
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}; |
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static struct mfd_cell rsmu_cm_devs[] = { |
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[RSMU_PHC] = { |
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.name = "8a3400x-phc", |
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}, |
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[RSMU_CDEV] = { |
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.name = "8a3400x-cdev", |
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}, |
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}; |
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static struct mfd_cell rsmu_sabre_devs[] = { |
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[RSMU_PHC] = { |
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.name = "82p33x1x-phc", |
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}, |
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[RSMU_CDEV] = { |
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.name = "82p33x1x-cdev", |
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}, |
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}; |
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static struct mfd_cell rsmu_sl_devs[] = { |
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[RSMU_PHC] = { |
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.name = "8v19n85x-phc", |
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}, |
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[RSMU_CDEV] = { |
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.name = "8v19n85x-cdev", |
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}, |
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}; |
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int rsmu_core_init(struct rsmu_ddata *rsmu) |
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{ |
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struct mfd_cell *cells; |
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int ret; |
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switch (rsmu->type) { |
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case RSMU_CM: |
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cells = rsmu_cm_devs; |
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break; |
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case RSMU_SABRE: |
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cells = rsmu_sabre_devs; |
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break; |
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case RSMU_SL: |
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cells = rsmu_sl_devs; |
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break; |
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default: |
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dev_err(rsmu->dev, "Unsupported RSMU device type: %d\n", rsmu->type); |
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return -ENODEV; |
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} |
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mutex_init(&rsmu->lock); |
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ret = devm_mfd_add_devices(rsmu->dev, PLATFORM_DEVID_AUTO, cells, |
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RSMU_N_DEVS, NULL, 0, NULL); |
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if (ret < 0) |
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dev_err(rsmu->dev, "Failed to register sub-devices: %d\n", ret); |
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return ret; |
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} |
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void rsmu_core_exit(struct rsmu_ddata *rsmu) |
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{ |
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mutex_destroy(&rsmu->lock); |
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} |
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MODULE_DESCRIPTION("Renesas SMU core driver"); |
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MODULE_LICENSE("GPL");
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