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>
38 	unsigned int syscfg;  member
45 		.compatible = "st,stih407-irq-syscfg",
52 			int device, int channel, bool irq)  in st_irq_xlate()  argument
54 	struct st_irq_syscfg *ddata = dev_get_drvdata(&pdev->dev);  in st_irq_xlate()
59 		ddata->config |= ST_A9_IRQ_EN_EXT_0;  in st_irq_xlate()
62 		ddata->config |= ST_A9_IRQ_EN_EXT_1;  in st_irq_xlate()
65 		ddata->config |= ST_A9_IRQ_EN_EXT_2;  in st_irq_xlate()
68 		ddata->config |= ST_A9_IRQ_EN_CTI_0;  in st_irq_xlate()
71 		ddata->config |= ST_A9_IRQ_EN_CTI_1;  in st_irq_xlate()
74 		ddata->config |= ST_A9_IRQ_EN_PMU_0;  in st_irq_xlate()
77 		ddata->config |= ST_A9_IRQ_EN_PMU_1;  in st_irq_xlate()
80 		ddata->config |= ST_A9_IRQ_EN_PL310_L2;  in st_irq_xlate()
85 		dev_err(&pdev->dev, "Unrecognised device %d\n", device);  in st_irq_xlate()
86 		return -EINVAL;  in st_irq_xlate()
89 	/* Select IRQ/FIQ channel for device. */  in st_irq_xlate()
90 	ddata->config |= irq ?  in st_irq_xlate()
99 	struct device_node *np = pdev->dev.of_node;  in st_irq_syscfg_enable()
100 	struct st_irq_syscfg *ddata = dev_get_drvdata(&pdev->dev);  in st_irq_syscfg_enable()
104 	channels = of_property_count_u32_elems(np, "st,irq-device");  in st_irq_syscfg_enable()
106 		dev_err(&pdev->dev, "st,enable-irq-device must have 2 elems\n");  in st_irq_syscfg_enable()
107 		return -EINVAL;  in st_irq_syscfg_enable()
110 	channels = of_property_count_u32_elems(np, "st,fiq-device");  in st_irq_syscfg_enable()
112 		dev_err(&pdev->dev, "st,enable-fiq-device must have 2 elems\n");  in st_irq_syscfg_enable()
113 		return -EINVAL;  in st_irq_syscfg_enable()
117 		of_property_read_u32_index(np, "st,irq-device", i, &device);  in st_irq_syscfg_enable()
123 		of_property_read_u32_index(np, "st,fiq-device", i, &device);  in st_irq_syscfg_enable()
131 	of_property_read_u32(np, "st,invert-ext", &invert);  in st_irq_syscfg_enable()
132 	ddata->config |= ST_A9_EXTIRQ_INV_SEL(invert);  in st_irq_syscfg_enable()
134 	return regmap_update_bits(ddata->regmap, ddata->syscfg,  in st_irq_syscfg_enable()
135 				  ST_A9_IRQ_MASK, ddata->config);  in st_irq_syscfg_enable()
140 	struct device_node *np = pdev->dev.of_node;  in st_irq_syscfg_probe()
143 	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);  in st_irq_syscfg_probe()
145 		return -ENOMEM;  in st_irq_syscfg_probe()
147 	ddata->syscfg = (unsigned int) device_get_match_data(&pdev->dev);  in st_irq_syscfg_probe()
149 	ddata->regmap = syscon_regmap_lookup_by_phandle(np, "st,syscfg");  in st_irq_syscfg_probe()
150 	if (IS_ERR(ddata->regmap)) {  in st_irq_syscfg_probe()
151 		dev_err(&pdev->dev, "syscfg phandle missing\n");  in st_irq_syscfg_probe()
152 		return PTR_ERR(ddata->regmap);  in st_irq_syscfg_probe()
155 	dev_set_drvdata(&pdev->dev, ddata);  in st_irq_syscfg_probe()
164 	return regmap_update_bits(ddata->regmap, ddata->syscfg,  in st_irq_syscfg_resume()
165 				  ST_A9_IRQ_MASK, ddata->config);  in st_irq_syscfg_resume()