threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
136 lines
3.6 KiB
C
136 lines
3.6 KiB
C
/*
|
|
* drivers/misc/mediatek/pmic/mt6360/mt6360_pmu_subdev.c
|
|
* Driver for MT6360 PMIC SubDev
|
|
*
|
|
* Copyright (C) 2018 Mediatek Technology Inc.
|
|
* cy_huang <cy_huang@richtek.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
* See http://www.gnu.org/licenses/gpl-2.0.html for more details.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/err.h>
|
|
#include <linux/mfd/core.h>
|
|
#include <linux/of_irq.h>
|
|
|
|
#include "../inc/mt6360_pmu.h"
|
|
|
|
static struct mfd_cell mt6360_pmu_subdevs[MT6360_PMUDEV_MAX] = {
|
|
{
|
|
.name = "mt6360_pmu_core",
|
|
.of_compatible = "mediatek,mt6360_pmu_core",
|
|
.pm_runtime_no_callbacks = true,
|
|
},
|
|
{
|
|
.name = "mt6360_pmu_adc",
|
|
.of_compatible = "mediatek,mt6360_pmu_adc",
|
|
.pm_runtime_no_callbacks = true,
|
|
},
|
|
{
|
|
.name = "mt6360_pmu_chg",
|
|
.of_compatible = "mediatek,mt6360_pmu_chg",
|
|
.pm_runtime_no_callbacks = true,
|
|
},
|
|
{
|
|
.name = "mt6360_pmu_fled",
|
|
.of_compatible = "mediatek,mt6360_pmu_fled",
|
|
.pm_runtime_no_callbacks = true,
|
|
},
|
|
{
|
|
.name = "mt6360_pmu_rgbled",
|
|
.of_compatible = "mediatek,mt6360_pmu_rgbled",
|
|
.pm_runtime_no_callbacks = true,
|
|
},
|
|
};
|
|
|
|
static int mt6360_pmu_init_of_subdevs(struct mt6360_pmu_info *mpi)
|
|
{
|
|
struct mfd_cell *cell = NULL;
|
|
struct device_node *np = NULL;
|
|
struct resource *irq_res = NULL;
|
|
int i, irq_cnt, ret;
|
|
|
|
for (i = 0; i < MT6360_PMUDEV_MAX; i++) {
|
|
cell = mt6360_pmu_subdevs + i;
|
|
np = NULL;
|
|
for_each_child_of_node(mpi->dev->of_node, np) {
|
|
if (of_device_is_compatible(np, cell->of_compatible))
|
|
break;
|
|
}
|
|
if (!np)
|
|
continue;
|
|
irq_cnt = of_irq_count(np);
|
|
if (!irq_cnt)
|
|
continue;
|
|
irq_res = devm_kzalloc(mpi->dev,
|
|
irq_cnt * sizeof(*irq_res), GFP_KERNEL);
|
|
if (!irq_res)
|
|
return -ENOMEM;
|
|
ret = of_irq_to_resource_table(np, irq_res, irq_cnt);
|
|
cell->resources = irq_res;
|
|
cell->num_resources = ret;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mt6360_pmu_init_nonof_subdevs(struct mt6360_pmu_info *mpi)
|
|
{
|
|
struct mt6360_pmu_platform_data *pdata = dev_get_platdata(mpi->dev);
|
|
struct mfd_cell *cell = NULL;
|
|
struct resource *res = NULL;
|
|
int i, j, ret;
|
|
|
|
for (i = 0; i < MT6360_PMUDEV_MAX; i++) {
|
|
cell = mt6360_pmu_subdevs + i;
|
|
for (j = 0; j < pdata->dev_irq_res_cnt[i]; j++) {
|
|
res = pdata->dev_irq_resources[i] + j;
|
|
ret = irq_create_mapping(mpi->irq_domain,
|
|
res->start);
|
|
res->start = res->end = ret;
|
|
}
|
|
cell->platform_data = pdata->dev_platform_data[i];
|
|
cell->pdata_size = pdata->dev_pdata_size[i];
|
|
cell->resources = pdata->dev_irq_resources[i];
|
|
cell->num_resources = pdata->dev_irq_res_cnt[i];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline int mt6360_pmu_init_subdevs(struct mt6360_pmu_info *mpi)
|
|
{
|
|
return (mpi->dev->of_node ? mt6360_pmu_init_of_subdevs(mpi) :
|
|
mt6360_pmu_init_nonof_subdevs(mpi));
|
|
}
|
|
|
|
int mt6360_pmu_subdev_register(struct mt6360_pmu_info *mpi)
|
|
{
|
|
int ret;
|
|
|
|
ret = mt6360_pmu_init_subdevs(mpi);
|
|
if (ret < 0) {
|
|
dev_err(mpi->dev, "fail to init subdevs\n");
|
|
return ret;
|
|
}
|
|
ret = mfd_add_devices(mpi->dev, PLATFORM_DEVID_AUTO, mt6360_pmu_subdevs,
|
|
ARRAY_SIZE(mt6360_pmu_subdevs), NULL, 0, NULL);
|
|
if (ret < 0) {
|
|
dev_err(mpi->dev, "fail to add subdevs\n");
|
|
return ret;
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(mt6360_pmu_subdev_register);
|
|
|
|
void mt6360_pmu_subdev_unregister(struct mt6360_pmu_info *mpi)
|
|
{
|
|
mfd_remove_devices(mpi->dev);
|
|
}
|
|
EXPORT_SYMBOL_GPL(mt6360_pmu_subdev_unregister);
|