drivers/reset/reset-qcom-pdc.c

1 // SPDX-License-Identifier: GPL-2.0
10 #include <linux/reset-controller.h>
12 #include <dt-bindings/reset/qcom,sdm845-pdc.h>
34 	.name		= "pdc-reset",
92 	u32 mask = BIT(data->desc->resets[idx].bit);  in qcom_pdc_control_assert()
94 	return regmap_update_bits(data->regmap, data->desc->offset, mask, mask);  in qcom_pdc_control_assert()
101 	u32 mask = BIT(data->desc->resets[idx].bit);  in qcom_pdc_control_deassert()
103 	return regmap_update_bits(data->regmap, data->desc->offset, mask, 0);  in qcom_pdc_control_deassert()
115 	struct device *dev = &pdev->dev;  in qcom_pdc_reset_probe()
118 	desc = device_get_match_data(&pdev->dev);  in qcom_pdc_reset_probe()
120 		return -EINVAL;  in qcom_pdc_reset_probe()
124 		return -ENOMEM;  in qcom_pdc_reset_probe()
126 	data->desc = desc;  in qcom_pdc_reset_probe()
131 	data->regmap = devm_regmap_init_mmio(dev, base, &pdc_regmap_config);  in qcom_pdc_reset_probe()
132 	if (IS_ERR(data->regmap)) {  in qcom_pdc_reset_probe()
134 		return PTR_ERR(data->regmap);  in qcom_pdc_reset_probe()
137 	data->rcdev.owner = THIS_MODULE;  in qcom_pdc_reset_probe()
138 	data->rcdev.ops = &qcom_pdc_reset_ops;  in qcom_pdc_reset_probe()
139 	data->rcdev.nr_resets = desc->num_resets;  in qcom_pdc_reset_probe()
140 	data->rcdev.of_node = dev->of_node;  in qcom_pdc_reset_probe()
142 	return devm_reset_controller_register(dev, &data->rcdev);  in qcom_pdc_reset_probe()
146 	{ .compatible = "qcom,sc7280-pdc-global", .data = &sc7280_pdc_reset_desc },
147 	{ .compatible = "qcom,sdm845-pdc-global", .data = &sdm845_pdc_reset_desc },
161 MODULE_DESCRIPTION("Qualcomm PDC Reset Driver");