1 // SPDX-License-Identifier: GPL-2.0-only
8 #include <linux/interrupt.h>
16 #include "../clk.h"
24 /* interrupt node enable */
26 /* interrupt control register */
28 /* interrupt capture register */
76 	int timer = irq - irqres[0].start;  in timer_irq_handler()
95 static int gptu_enable(struct clk *clk)  in gptu_enable()  argument
97 	int ret = request_irq(irqres[clk->bits].start, timer_irq_handler,  in gptu_enable()
105 		GPTU_CON(clk->bits));  in gptu_enable()
106 	gptu_w32(1, GPTU_RLD(clk->bits));  in gptu_enable()
107 	gptu_w32(gptu_r32(GPTU_IRNEN) | BIT(clk->bits), GPTU_IRNEN);  in gptu_enable()
108 	gptu_w32(RUN_SEN | RUN_RL, GPTU_RUN(clk->bits));  in gptu_enable()
112 static void gptu_disable(struct clk *clk)  in gptu_disable()  argument
114 	gptu_w32(0, GPTU_RUN(clk->bits));  in gptu_disable()
115 	gptu_w32(0, GPTU_CON(clk->bits));  in gptu_disable()
116 	gptu_w32(0, GPTU_RLD(clk->bits));  in gptu_disable()
117 	gptu_w32(gptu_r32(GPTU_IRNEN) & ~BIT(clk->bits), GPTU_IRNEN);  in gptu_disable()
118 	free_irq(irqres[clk->bits].start, NULL);  in gptu_disable()
124 	struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);  in clkdev_add_gptu()  local
126 	if (!clk)  in clkdev_add_gptu()
128 	clk->cl.dev_id = dev_name(dev);  in clkdev_add_gptu()
129 	clk->cl.con_id = con;  in clkdev_add_gptu()
130 	clk->cl.clk = clk;  in clkdev_add_gptu()
131 	clk->enable = gptu_enable;  in clkdev_add_gptu()
132 	clk->disable = gptu_disable;  in clkdev_add_gptu()
133 	clk->bits = timer;  in clkdev_add_gptu()
134 	clkdev_add(&clk->cl);  in clkdev_add_gptu()
139 	struct clk *clk;  in gptu_probe()  local
141 	if (of_irq_to_resource_table(pdev->dev.of_node, irqres, 6) != 6) {  in gptu_probe()
142 		dev_err(&pdev->dev, "Failed to get IRQ list\n");  in gptu_probe()
143 		return -EINVAL;  in gptu_probe()
152 	clk = clk_get(&pdev->dev, NULL);  in gptu_probe()
153 	if (IS_ERR(clk)) {  in gptu_probe()
154 		dev_err(&pdev->dev, "Failed to get clock\n");  in gptu_probe()
155 		return -ENOENT;  in gptu_probe()
157 	clk_enable(clk);  in gptu_probe()
164 		dev_err(&pdev->dev, "Failed to find magic\n");  in gptu_probe()
166 		clk_disable(clk);  in gptu_probe()
167 		clk_put(clk);  in gptu_probe()
168 		return -ENAVAIL;  in gptu_probe()
172 	clkdev_add_gptu(&pdev->dev, "timer1a", TIMER1A);  in gptu_probe()
173 	clkdev_add_gptu(&pdev->dev, "timer1b", TIMER1B);  in gptu_probe()
174 	clkdev_add_gptu(&pdev->dev, "timer2a", TIMER2A);  in gptu_probe()
175 	clkdev_add_gptu(&pdev->dev, "timer2b", TIMER2B);  in gptu_probe()
176 	clkdev_add_gptu(&pdev->dev, "timer3a", TIMER3A);  in gptu_probe()
177 	clkdev_add_gptu(&pdev->dev, "timer3b", TIMER3B);  in gptu_probe()
179 	dev_info(&pdev->dev, "gptu: 6 timers loaded\n");  in gptu_probe()
185 	{ .compatible = "lantiq,gptu-xway" },
192 		.name = "gptu-xway",