1 // SPDX-License-Identifier: GPL-2.0-only
7  *  This is a re-write of Christophe Kerello's PMU driver.
10 #include <dt-bindings/interrupt-controller/irq-st.h>
48 		.compatible = "st,stih415-irq-syscfg",
52 		.compatible = "st,stih416-irq-syscfg",
56 		.compatible = "st,stih407-irq-syscfg",
60 		.compatible = "st,stid127-irq-syscfg",
69 	struct st_irq_syscfg *ddata = dev_get_drvdata(&pdev->dev);  in st_irq_xlate()
71 	/* Set the device enable bit. */  in st_irq_xlate()
74 		ddata->config |= ST_A9_IRQ_EN_EXT_0;  in st_irq_xlate()
77 		ddata->config |= ST_A9_IRQ_EN_EXT_1;  in st_irq_xlate()
80 		ddata->config |= ST_A9_IRQ_EN_EXT_2;  in st_irq_xlate()
83 		ddata->config |= ST_A9_IRQ_EN_CTI_0;  in st_irq_xlate()
86 		ddata->config |= ST_A9_IRQ_EN_CTI_1;  in st_irq_xlate()
89 		ddata->config |= ST_A9_IRQ_EN_PMU_0;  in st_irq_xlate()
92 		ddata->config |= ST_A9_IRQ_EN_PMU_1;  in st_irq_xlate()
95 		ddata->config |= ST_A9_IRQ_EN_PL310_L2;  in st_irq_xlate()
100 		dev_err(&pdev->dev, "Unrecognised device %d\n", device);  in st_irq_xlate()
101 		return -EINVAL;  in st_irq_xlate()
105 	ddata->config |= irq ?  in st_irq_xlate()
114 	struct device_node *np = pdev->dev.of_node;  in st_irq_syscfg_enable()
115 	struct st_irq_syscfg *ddata = dev_get_drvdata(&pdev->dev);  in st_irq_syscfg_enable()
117 	u32 device, invert;  in st_irq_syscfg_enable()  local
119 	channels = of_property_count_u32_elems(np, "st,irq-device");  in st_irq_syscfg_enable()
121 		dev_err(&pdev->dev, "st,enable-irq-device must have 2 elems\n");  in st_irq_syscfg_enable()
122 		return -EINVAL;  in st_irq_syscfg_enable()
125 	channels = of_property_count_u32_elems(np, "st,fiq-device");  in st_irq_syscfg_enable()
127 		dev_err(&pdev->dev, "st,enable-fiq-device must have 2 elems\n");  in st_irq_syscfg_enable()
128 		return -EINVAL;  in st_irq_syscfg_enable()
132 		of_property_read_u32_index(np, "st,irq-device", i, &device);  in st_irq_syscfg_enable()
138 		of_property_read_u32_index(np, "st,fiq-device", i, &device);  in st_irq_syscfg_enable()
146 	of_property_read_u32(np, "st,invert-ext", &invert);  in st_irq_syscfg_enable()
147 	ddata->config |= ST_A9_EXTIRQ_INV_SEL(invert);  in st_irq_syscfg_enable()
149 	return regmap_update_bits(ddata->regmap, ddata->syscfg,  in st_irq_syscfg_enable()
150 				  ST_A9_IRQ_MASK, ddata->config);  in st_irq_syscfg_enable()
155 	struct device_node *np = pdev->dev.of_node;  in st_irq_syscfg_probe()
159 	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);  in st_irq_syscfg_probe()
161 		return -ENOMEM;  in st_irq_syscfg_probe()
163 	match = of_match_device(st_irq_syscfg_match, &pdev->dev);  in st_irq_syscfg_probe()
165 		return -ENODEV;  in st_irq_syscfg_probe()
167 	ddata->syscfg = (unsigned int)match->data;  in st_irq_syscfg_probe()
169 	ddata->regmap = syscon_regmap_lookup_by_phandle(np, "st,syscfg");  in st_irq_syscfg_probe()
170 	if (IS_ERR(ddata->regmap)) {  in st_irq_syscfg_probe()
171 		dev_err(&pdev->dev, "syscfg phandle missing\n");  in st_irq_syscfg_probe()
172 		return PTR_ERR(ddata->regmap);  in st_irq_syscfg_probe()
175 	dev_set_drvdata(&pdev->dev, ddata);  in st_irq_syscfg_probe()
184 	return regmap_update_bits(ddata->regmap, ddata->syscfg,  in st_irq_syscfg_resume()
185 				  ST_A9_IRQ_MASK, ddata->config);  in st_irq_syscfg_resume()