1 // SPDX-License-Identifier: GPL-2.0-only
3 // rt712-sdca-sdw.c -- rt712 SDCA ALSA SoC audio driver
15 #include "rt712-sdca.h"
16 #include "rt712-sdca-sdw.h"
18 static bool rt712_sdca_readable_register(struct device *dev, unsigned int reg)  in rt712_sdca_readable_register()  argument
44 static bool rt712_sdca_volatile_register(struct device *dev, unsigned int reg)  in rt712_sdca_volatile_register()  argument
66 static bool rt712_sdca_mbq_readable_register(struct device *dev, unsigned int reg)  in rt712_sdca_mbq_readable_register()  argument
94 static bool rt712_sdca_mbq_volatile_register(struct device *dev, unsigned int reg)  in rt712_sdca_mbq_volatile_register()  argument
125 	.name = "sdw-mbq",
138 static int rt712_sdca_update_status(struct sdw_slave *slave,  in rt712_sdca_update_status()  argument
141 	struct rt712_sdca_priv *rt712 = dev_get_drvdata(&slave->dev);  in rt712_sdca_update_status()
144 		rt712->hw_init = false;  in rt712_sdca_update_status()
147 		if (rt712->hs_jack) {  in rt712_sdca_update_status()
154 			sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INTMASK1,  in rt712_sdca_update_status()
156 			sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INTMASK2,  in rt712_sdca_update_status()
162 	 * Perform initialization only if slave status is present and  in rt712_sdca_update_status()
165 	if (rt712->hw_init || status != SDW_SLAVE_ATTACHED)  in rt712_sdca_update_status()
168 	/* perform I/O transfers required for Slave initialization */  in rt712_sdca_update_status()
169 	return rt712_sdca_io_init(&slave->dev, slave);  in rt712_sdca_update_status()
172 static int rt712_sdca_read_prop(struct sdw_slave *slave)  in rt712_sdca_read_prop()  argument
174 	struct sdw_slave_prop *prop = &slave->prop;  in rt712_sdca_read_prop()
181 	prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;  in rt712_sdca_read_prop()
182 	prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;  in rt712_sdca_read_prop()
184 	prop->paging_support = true;  in rt712_sdca_read_prop()
187 	prop->source_ports = BIT(4); /* BITMAP: 00010000 */  in rt712_sdca_read_prop()
188 	prop->sink_ports = BIT(3) | BIT(1); /* BITMAP:  00001010 */  in rt712_sdca_read_prop()
190 	nval = hweight32(prop->source_ports);  in rt712_sdca_read_prop()
191 	prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,  in rt712_sdca_read_prop()
192 		sizeof(*prop->src_dpn_prop), GFP_KERNEL);  in rt712_sdca_read_prop()
193 	if (!prop->src_dpn_prop)  in rt712_sdca_read_prop()
194 		return -ENOMEM;  in rt712_sdca_read_prop()
197 	dpn = prop->src_dpn_prop;  in rt712_sdca_read_prop()
198 	addr = prop->source_ports;  in rt712_sdca_read_prop()
208 	nval = hweight32(prop->sink_ports);  in rt712_sdca_read_prop()
209 	prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,  in rt712_sdca_read_prop()
210 		sizeof(*prop->sink_dpn_prop), GFP_KERNEL);  in rt712_sdca_read_prop()
211 	if (!prop->sink_dpn_prop)  in rt712_sdca_read_prop()
212 		return -ENOMEM;  in rt712_sdca_read_prop()
215 	dpn = prop->sink_dpn_prop;  in rt712_sdca_read_prop()
216 	addr = prop->sink_ports;  in rt712_sdca_read_prop()
226 	prop->clk_stop_timeout = 1380;  in rt712_sdca_read_prop()
228 	/* wake-up event */  in rt712_sdca_read_prop()
229 	prop->wake_capable = 1;  in rt712_sdca_read_prop()
234 static int rt712_sdca_interrupt_callback(struct sdw_slave *slave,  in rt712_sdca_interrupt_callback()  argument
237 	struct rt712_sdca_priv *rt712 = dev_get_drvdata(&slave->dev);  in rt712_sdca_interrupt_callback()
242 	dev_dbg(&slave->dev,  in rt712_sdca_interrupt_callback()
244 		status->control_port, status->sdca_cascade);  in rt712_sdca_interrupt_callback()
246 	if (cancel_delayed_work_sync(&rt712->jack_detect_work)) {  in rt712_sdca_interrupt_callback()
247 		dev_warn(&slave->dev, "%s the pending delayed_work was cancelled", __func__);  in rt712_sdca_interrupt_callback()
249 		if (rt712->scp_sdca_stat2)  in rt712_sdca_interrupt_callback()
250 			scp_sdca_stat2 = rt712->scp_sdca_stat2;  in rt712_sdca_interrupt_callback()
260 	mutex_lock(&rt712->disable_irq_lock);  in rt712_sdca_interrupt_callback()
262 	ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT1);  in rt712_sdca_interrupt_callback()
265 	rt712->scp_sdca_stat1 = ret;  in rt712_sdca_interrupt_callback()
266 	ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT2);  in rt712_sdca_interrupt_callback()
269 	rt712->scp_sdca_stat2 = ret;  in rt712_sdca_interrupt_callback()
271 		rt712->scp_sdca_stat2 |= scp_sdca_stat2;  in rt712_sdca_interrupt_callback()
275 		ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT1);  in rt712_sdca_interrupt_callback()
279 			ret = sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INT1,  in rt712_sdca_interrupt_callback()
284 		ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT2);  in rt712_sdca_interrupt_callback()
288 			ret = sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INT2,  in rt712_sdca_interrupt_callback()
295 		ret = sdw_read_no_pm(rt712->slave, SDW_DP0_INT);  in rt712_sdca_interrupt_callback()
300 		ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT1);  in rt712_sdca_interrupt_callback()
305 		ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT2);  in rt712_sdca_interrupt_callback()
316 		dev_warn(&slave->dev,  in rt712_sdca_interrupt_callback()
318 			rt712->scp_sdca_stat1, rt712->scp_sdca_stat2);  in rt712_sdca_interrupt_callback()
320 	if (status->sdca_cascade && !rt712->disable_irq)  in rt712_sdca_interrupt_callback()
322 			&rt712->jack_detect_work, msecs_to_jiffies(30));  in rt712_sdca_interrupt_callback()
324 	mutex_unlock(&rt712->disable_irq_lock);  in rt712_sdca_interrupt_callback()
329 	mutex_unlock(&rt712->disable_irq_lock);  in rt712_sdca_interrupt_callback()
340 static int rt712_sdca_sdw_probe(struct sdw_slave *slave,  in rt712_sdca_sdw_probe()  argument
346 	mbq_regmap = devm_regmap_init_sdw_mbq(slave, &rt712_sdca_mbq_regmap);  in rt712_sdca_sdw_probe()
350 	regmap = devm_regmap_init_sdw(slave, &rt712_sdca_regmap);  in rt712_sdca_sdw_probe()
354 	return rt712_sdca_init(&slave->dev, regmap, mbq_regmap, slave);  in rt712_sdca_sdw_probe()
357 static int rt712_sdca_sdw_remove(struct sdw_slave *slave)  in rt712_sdca_sdw_remove()  argument
359 	struct rt712_sdca_priv *rt712 = dev_get_drvdata(&slave->dev);  in rt712_sdca_sdw_remove()
361 	if (rt712->hw_init) {  in rt712_sdca_sdw_remove()
362 		cancel_delayed_work_sync(&rt712->jack_detect_work);  in rt712_sdca_sdw_remove()
363 		cancel_delayed_work_sync(&rt712->jack_btn_check_work);  in rt712_sdca_sdw_remove()
366 	pm_runtime_disable(&slave->dev);  in rt712_sdca_sdw_remove()
368 	mutex_destroy(&rt712->calibrate_mutex);  in rt712_sdca_sdw_remove()
369 	mutex_destroy(&rt712->disable_irq_lock);  in rt712_sdca_sdw_remove()
383 static int __maybe_unused rt712_sdca_dev_suspend(struct device *dev)  in rt712_sdca_dev_suspend()  argument
385 	struct rt712_sdca_priv *rt712 = dev_get_drvdata(dev);  in rt712_sdca_dev_suspend()
387 	if (!rt712->hw_init)  in rt712_sdca_dev_suspend()
390 	cancel_delayed_work_sync(&rt712->jack_detect_work);  in rt712_sdca_dev_suspend()
391 	cancel_delayed_work_sync(&rt712->jack_btn_check_work);  in rt712_sdca_dev_suspend()
393 	regcache_cache_only(rt712->regmap, true);  in rt712_sdca_dev_suspend()
394 	regcache_cache_only(rt712->mbq_regmap, true);  in rt712_sdca_dev_suspend()
399 static int __maybe_unused rt712_sdca_dev_system_suspend(struct device *dev)  in rt712_sdca_dev_system_suspend()  argument
401 	struct rt712_sdca_priv *rt712_sdca = dev_get_drvdata(dev);  in rt712_sdca_dev_system_suspend()
402 	struct sdw_slave *slave = dev_to_sdw_dev(dev);  in rt712_sdca_dev_system_suspend()  local
405 	if (!rt712_sdca->hw_init)  in rt712_sdca_dev_system_suspend()
413 	mutex_lock(&rt712_sdca->disable_irq_lock);  in rt712_sdca_dev_system_suspend()
414 	rt712_sdca->disable_irq = true;  in rt712_sdca_dev_system_suspend()
415 	ret1 = sdw_update_no_pm(slave, SDW_SCP_SDCA_INTMASK1,  in rt712_sdca_dev_system_suspend()
417 	ret2 = sdw_update_no_pm(slave, SDW_SCP_SDCA_INTMASK2,  in rt712_sdca_dev_system_suspend()
419 	mutex_unlock(&rt712_sdca->disable_irq_lock);  in rt712_sdca_dev_system_suspend()
423 		dev_dbg(&slave->dev, "%s: could not disable SDCA interrupts\n:", __func__);  in rt712_sdca_dev_system_suspend()
426 	return rt712_sdca_dev_suspend(dev);  in rt712_sdca_dev_system_suspend()
431 static int __maybe_unused rt712_sdca_dev_resume(struct device *dev)  in rt712_sdca_dev_resume()  argument
433 	struct sdw_slave *slave = dev_to_sdw_dev(dev);  in rt712_sdca_dev_resume()  local
434 	struct rt712_sdca_priv *rt712 = dev_get_drvdata(dev);  in rt712_sdca_dev_resume()
437 	if (!rt712->first_hw_init)  in rt712_sdca_dev_resume()
440 	if (!slave->unattach_request) {  in rt712_sdca_dev_resume()
441 		mutex_lock(&rt712->disable_irq_lock);  in rt712_sdca_dev_resume()
442 		if (rt712->disable_irq == true) {  in rt712_sdca_dev_resume()
444 			sdw_write_no_pm(slave, SDW_SCP_SDCA_INTMASK1, SDW_SCP_SDCA_INTMASK_SDCA_0);  in rt712_sdca_dev_resume()
445 			sdw_write_no_pm(slave, SDW_SCP_SDCA_INTMASK2, SDW_SCP_SDCA_INTMASK_SDCA_8);  in rt712_sdca_dev_resume()
446 			rt712->disable_irq = false;  in rt712_sdca_dev_resume()
448 		mutex_unlock(&rt712->disable_irq_lock);  in rt712_sdca_dev_resume()
452 	time = wait_for_completion_timeout(&slave->initialization_complete,  in rt712_sdca_dev_resume()
455 		dev_err(&slave->dev, "Initialization not complete, timed out\n");  in rt712_sdca_dev_resume()
456 		sdw_show_ping_status(slave->bus, true);  in rt712_sdca_dev_resume()
458 		return -ETIMEDOUT;  in rt712_sdca_dev_resume()
462 	slave->unattach_request = 0;  in rt712_sdca_dev_resume()
463 	regcache_cache_only(rt712->regmap, false);  in rt712_sdca_dev_resume()
464 	regcache_sync(rt712->regmap);  in rt712_sdca_dev_resume()
465 	regcache_cache_only(rt712->mbq_regmap, false);  in rt712_sdca_dev_resume()
466 	regcache_sync(rt712->mbq_regmap);  in rt712_sdca_dev_resume()
477 		.name = "rt712-sdca",