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![Rob Herring](/assets/img/avatar_default.png)
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230714174935.4063513-1-robh@kernel.org Signed-off-by: Bjorn Andersson <andersson@kernel.org>
207 lines
4.7 KiB
C
207 lines
4.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Qualcomm Wireless Connectivity Subsystem Iris driver
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*
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* Copyright (C) 2016 Linaro Ltd
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* Copyright (C) 2014 Sony Mobile Communications AB
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* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
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*/
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#include <linux/clk.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <linux/regulator/consumer.h>
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#include "qcom_wcnss.h"
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struct qcom_iris {
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struct device dev;
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struct clk *xo_clk;
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struct regulator_bulk_data *vregs;
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size_t num_vregs;
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};
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struct iris_data {
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const struct wcnss_vreg_info *vregs;
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size_t num_vregs;
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bool use_48mhz_xo;
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};
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static const struct iris_data wcn3620_data = {
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.vregs = (struct wcnss_vreg_info[]) {
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{ "vddxo", 1800000, 1800000, 10000 },
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{ "vddrfa", 1300000, 1300000, 100000 },
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{ "vddpa", 3300000, 3300000, 515000 },
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{ "vdddig", 1800000, 1800000, 10000 },
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},
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.num_vregs = 4,
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.use_48mhz_xo = false,
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};
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static const struct iris_data wcn3660_data = {
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.vregs = (struct wcnss_vreg_info[]) {
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{ "vddxo", 1800000, 1800000, 10000 },
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{ "vddrfa", 1300000, 1300000, 100000 },
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{ "vddpa", 2900000, 3000000, 515000 },
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{ "vdddig", 1200000, 1225000, 10000 },
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},
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.num_vregs = 4,
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.use_48mhz_xo = true,
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};
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static const struct iris_data wcn3680_data = {
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.vregs = (struct wcnss_vreg_info[]) {
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{ "vddxo", 1800000, 1800000, 10000 },
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{ "vddrfa", 1300000, 1300000, 100000 },
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{ "vddpa", 3300000, 3300000, 515000 },
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{ "vdddig", 1800000, 1800000, 10000 },
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},
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.num_vregs = 4,
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.use_48mhz_xo = true,
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};
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int qcom_iris_enable(struct qcom_iris *iris)
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{
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int ret;
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ret = regulator_bulk_enable(iris->num_vregs, iris->vregs);
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if (ret)
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return ret;
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ret = clk_prepare_enable(iris->xo_clk);
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if (ret) {
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dev_err(&iris->dev, "failed to enable xo clk\n");
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goto disable_regulators;
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}
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return 0;
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disable_regulators:
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regulator_bulk_disable(iris->num_vregs, iris->vregs);
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return ret;
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}
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void qcom_iris_disable(struct qcom_iris *iris)
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{
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clk_disable_unprepare(iris->xo_clk);
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regulator_bulk_disable(iris->num_vregs, iris->vregs);
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}
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static const struct of_device_id iris_of_match[] = {
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{ .compatible = "qcom,wcn3620", .data = &wcn3620_data },
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{ .compatible = "qcom,wcn3660", .data = &wcn3660_data },
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{ .compatible = "qcom,wcn3660b", .data = &wcn3680_data },
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{ .compatible = "qcom,wcn3680", .data = &wcn3680_data },
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{}
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};
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static void qcom_iris_release(struct device *dev)
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{
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struct qcom_iris *iris = container_of(dev, struct qcom_iris, dev);
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of_node_put(iris->dev.of_node);
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kfree(iris);
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}
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struct qcom_iris *qcom_iris_probe(struct device *parent, bool *use_48mhz_xo)
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{
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const struct of_device_id *match;
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const struct iris_data *data;
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struct device_node *of_node;
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struct qcom_iris *iris;
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int ret;
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int i;
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of_node = of_get_child_by_name(parent->of_node, "iris");
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if (!of_node) {
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dev_err(parent, "No child node \"iris\" found\n");
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return ERR_PTR(-EINVAL);
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}
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iris = kzalloc(sizeof(*iris), GFP_KERNEL);
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if (!iris) {
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of_node_put(of_node);
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return ERR_PTR(-ENOMEM);
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}
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device_initialize(&iris->dev);
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iris->dev.parent = parent;
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iris->dev.release = qcom_iris_release;
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iris->dev.of_node = of_node;
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dev_set_name(&iris->dev, "%s.iris", dev_name(parent));
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ret = device_add(&iris->dev);
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if (ret) {
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put_device(&iris->dev);
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return ERR_PTR(ret);
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}
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match = of_match_device(iris_of_match, &iris->dev);
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if (!match) {
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dev_err(&iris->dev, "no matching compatible for iris\n");
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ret = -EINVAL;
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goto err_device_del;
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}
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data = match->data;
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iris->xo_clk = devm_clk_get(&iris->dev, "xo");
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if (IS_ERR(iris->xo_clk)) {
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ret = PTR_ERR(iris->xo_clk);
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if (ret != -EPROBE_DEFER)
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dev_err(&iris->dev, "failed to acquire xo clk\n");
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goto err_device_del;
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}
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iris->num_vregs = data->num_vregs;
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iris->vregs = devm_kcalloc(&iris->dev,
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iris->num_vregs,
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sizeof(struct regulator_bulk_data),
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GFP_KERNEL);
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if (!iris->vregs) {
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ret = -ENOMEM;
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goto err_device_del;
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}
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for (i = 0; i < iris->num_vregs; i++)
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iris->vregs[i].supply = data->vregs[i].name;
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ret = devm_regulator_bulk_get(&iris->dev, iris->num_vregs, iris->vregs);
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if (ret) {
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dev_err(&iris->dev, "failed to get regulators\n");
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goto err_device_del;
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}
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for (i = 0; i < iris->num_vregs; i++) {
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if (data->vregs[i].max_voltage)
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regulator_set_voltage(iris->vregs[i].consumer,
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data->vregs[i].min_voltage,
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data->vregs[i].max_voltage);
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if (data->vregs[i].load_uA)
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regulator_set_load(iris->vregs[i].consumer,
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data->vregs[i].load_uA);
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}
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*use_48mhz_xo = data->use_48mhz_xo;
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return iris;
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err_device_del:
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device_del(&iris->dev);
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return ERR_PTR(ret);
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}
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void qcom_iris_remove(struct qcom_iris *iris)
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{
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device_del(&iris->dev);
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}
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