3  * Ingenic SoCs TCU IRQ driver
14 #include <linux/mfd/ingenic-tcu.h>
23 #include <dt-bindings/clock/ingenic,tcu.h>
53 	struct ingenic_tcu *tcu = ingenic_tcu;  in ingenic_tcu_timer_read()  local
56 	regmap_read(tcu->map, TCU_REG_TCNTc(tcu->cs_channel), &count);  in ingenic_tcu_timer_read()
81 	struct ingenic_tcu *tcu = to_ingenic_tcu(timer);  in ingenic_tcu_cevt_set_state_shutdown()  local
83 	regmap_write(tcu->map, TCU_REG_TECR, BIT(timer->channel));  in ingenic_tcu_cevt_set_state_shutdown()
92 	struct ingenic_tcu *tcu = to_ingenic_tcu(timer);  in ingenic_tcu_cevt_set_next()  local
97 	regmap_write(tcu->map, TCU_REG_TDFRc(timer->channel), next);  in ingenic_tcu_cevt_set_next()
98 	regmap_write(tcu->map, TCU_REG_TCNTc(timer->channel), 0);  in ingenic_tcu_cevt_set_next()
99 	regmap_write(tcu->map, TCU_REG_TESR, BIT(timer->channel));  in ingenic_tcu_cevt_set_next()
114 	struct ingenic_tcu *tcu = to_ingenic_tcu(timer);  in ingenic_tcu_cevt_cb()  local
117 	regmap_write(tcu->map, TCU_REG_TECR, BIT(timer->channel));  in ingenic_tcu_cevt_cb()
142 	struct ingenic_tcu *tcu = ingenic_tcu;  in ingenic_tcu_setup_cevt()  local
143 	struct ingenic_tcu_timer *timer = &tcu->timers[cpu];  in ingenic_tcu_setup_cevt()
149 	timer->clk = ingenic_tcu_get_clock(tcu->np, timer->channel);  in ingenic_tcu_setup_cevt()
163 	domain = irq_find_host(tcu->np);  in ingenic_tcu_setup_cevt()
175 	snprintf(timer->name, sizeof(timer->name), "TCU%u", timer->channel);  in ingenic_tcu_setup_cevt()
204 					       struct ingenic_tcu *tcu)  in ingenic_tcu_clocksource_init()  argument
206 	unsigned int channel = tcu->cs_channel;  in ingenic_tcu_clocksource_init()
207 	struct clocksource *cs = &tcu->cs;  in ingenic_tcu_clocksource_init()
211 	tcu->cs_clk = ingenic_tcu_get_clock(np, channel);  in ingenic_tcu_clocksource_init()
212 	if (IS_ERR(tcu->cs_clk))  in ingenic_tcu_clocksource_init()
213 		return PTR_ERR(tcu->cs_clk);  in ingenic_tcu_clocksource_init()
215 	err = clk_prepare_enable(tcu->cs_clk);  in ingenic_tcu_clocksource_init()
219 	rate = clk_get_rate(tcu->cs_clk);  in ingenic_tcu_clocksource_init()
226 	regmap_update_bits(tcu->map, TCU_REG_TCSRc(channel),  in ingenic_tcu_clocksource_init()
230 	regmap_write(tcu->map, TCU_REG_TDFRc(channel), 0xffff);  in ingenic_tcu_clocksource_init()
231 	regmap_write(tcu->map, TCU_REG_TCNTc(channel), 0);  in ingenic_tcu_clocksource_init()
234 	regmap_write(tcu->map, TCU_REG_TESR, BIT(channel));  in ingenic_tcu_clocksource_init()
249 	clk_disable_unprepare(tcu->cs_clk);  in ingenic_tcu_clocksource_init()
251 	clk_put(tcu->cs_clk);  in ingenic_tcu_clocksource_init()
264 	{ .compatible = "ingenic,jz4740-tcu", .data = &jz4740_soc_info, },
265 	{ .compatible = "ingenic,jz4725b-tcu", .data = &jz4725b_soc_info, },
266 	{ .compatible = "ingenic,jz4760-tcu", .data = &jz4740_soc_info, },
267 	{ .compatible = "ingenic,jz4770-tcu", .data = &jz4740_soc_info, },
268 	{ .compatible = "ingenic,x1000-tcu", .data = &jz4740_soc_info, },
277 	struct ingenic_tcu *tcu;  in ingenic_tcu_init()  local
289 	tcu = kzalloc(struct_size(tcu, timers, num_possible_cpus()),  in ingenic_tcu_init()
291 	if (!tcu)  in ingenic_tcu_init()
295 	 * Enable all TCU channels for PWM use by default except channels 0/1,  in ingenic_tcu_init()
298 	tcu->pwm_channels_mask = GENMASK(soc_info->num_channels - 1,  in ingenic_tcu_init()
301 			     (u32 *)&tcu->pwm_channels_mask);  in ingenic_tcu_init()
304 	if (hweight8(tcu->pwm_channels_mask) >  in ingenic_tcu_init()
307 			tcu->pwm_channels_mask);  in ingenic_tcu_init()
312 	tcu->map = map;  in ingenic_tcu_init()
313 	tcu->np = np;  in ingenic_tcu_init()
314 	ingenic_tcu = tcu;  in ingenic_tcu_init()
317 		timer = &tcu->timers[cpu];  in ingenic_tcu_init()
320 		timer->channel = find_next_zero_bit(&tcu->pwm_channels_mask,  in ingenic_tcu_init()
326 	tcu->cs_channel = find_next_zero_bit(&tcu->pwm_channels_mask,  in ingenic_tcu_init()
330 	ret = ingenic_tcu_clocksource_init(np, tcu);  in ingenic_tcu_init()
345 	rate = clk_get_rate(tcu->cs_clk);  in ingenic_tcu_init()
351 	clocksource_unregister(&tcu->cs);  in ingenic_tcu_init()
352 	clk_disable_unprepare(tcu->cs_clk);  in ingenic_tcu_init()
353 	clk_put(tcu->cs_clk);  in ingenic_tcu_init()
355 	kfree(tcu);  in ingenic_tcu_init()
359 TIMER_OF_DECLARE(jz4740_tcu_intc,  "ingenic,jz4740-tcu",  ingenic_tcu_init);
360 TIMER_OF_DECLARE(jz4725b_tcu_intc, "ingenic,jz4725b-tcu", ingenic_tcu_init);
361 TIMER_OF_DECLARE(jz4760_tcu_intc,  "ingenic,jz4760-tcu",  ingenic_tcu_init);
362 TIMER_OF_DECLARE(jz4770_tcu_intc,  "ingenic,jz4770-tcu",  ingenic_tcu_init);
363 TIMER_OF_DECLARE(x1000_tcu_intc,  "ingenic,x1000-tcu",  ingenic_tcu_init);
374 	struct ingenic_tcu *tcu = dev_get_drvdata(dev);  in ingenic_tcu_suspend()  local
377 	clk_disable(tcu->cs_clk);  in ingenic_tcu_suspend()
380 		clk_disable(tcu->timers[cpu].clk);  in ingenic_tcu_suspend()
387 	struct ingenic_tcu *tcu = dev_get_drvdata(dev);  in ingenic_tcu_resume()  local
392 		ret = clk_enable(tcu->timers[cpu].clk);  in ingenic_tcu_resume()
397 	ret = clk_enable(tcu->cs_clk);  in ingenic_tcu_resume()
405 		clk_disable(tcu->timers[cpu - 1].clk);  in ingenic_tcu_resume()
410 	/* _noirq: We want the TCU clocks to be gated last / ungated first */
417 		.name	= "ingenic-tcu-timer",