1 // SPDX-License-Identifier: GPL-2.0-only
3 // rt711-sdw-sdca.c -- rt711 SDCA ALSA SoC audio driver
16 #include "rt711-sdca.h"
17 #include "rt711-sdca-sdw.h"
19 static bool rt711_sdca_readable_register(struct device *dev, unsigned int reg)  in rt711_sdca_readable_register()  argument
45 static bool rt711_sdca_volatile_register(struct device *dev, unsigned int reg)  in rt711_sdca_volatile_register()  argument
68 static bool rt711_sdca_mbq_readable_register(struct device *dev, unsigned int reg)  in rt711_sdca_mbq_readable_register()  argument
95 static bool rt711_sdca_mbq_volatile_register(struct device *dev, unsigned int reg)  in rt711_sdca_mbq_volatile_register()  argument
128 	.name = "sdw-mbq",
141 static int rt711_sdca_update_status(struct sdw_slave *slave,  in rt711_sdca_update_status()  argument
144 	struct rt711_sdca_priv *rt711 = dev_get_drvdata(&slave->dev);  in rt711_sdca_update_status()
147 		rt711->hw_init = false;  in rt711_sdca_update_status()
150 		if (rt711->hs_jack) {  in rt711_sdca_update_status()
157 			sdw_write_no_pm(rt711->slave, SDW_SCP_SDCA_INTMASK1,  in rt711_sdca_update_status()
159 			sdw_write_no_pm(rt711->slave, SDW_SCP_SDCA_INTMASK2,  in rt711_sdca_update_status()
165 	 * Perform initialization only if slave status is present and  in rt711_sdca_update_status()
168 	if (rt711->hw_init || status != SDW_SLAVE_ATTACHED)  in rt711_sdca_update_status()
171 	/* perform I/O transfers required for Slave initialization */  in rt711_sdca_update_status()
172 	return rt711_sdca_io_init(&slave->dev, slave);  in rt711_sdca_update_status()
175 static int rt711_sdca_read_prop(struct sdw_slave *slave)  in rt711_sdca_read_prop()  argument
177 	struct sdw_slave_prop *prop = &slave->prop;  in rt711_sdca_read_prop()
184 	prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;  in rt711_sdca_read_prop()
185 	prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;  in rt711_sdca_read_prop()
187 	prop->paging_support = true;  in rt711_sdca_read_prop()
190 	prop->source_ports = 0x14; /* BITMAP: 00010100 */  in rt711_sdca_read_prop()
191 	prop->sink_ports = 0x8; /* BITMAP:  00001000 */  in rt711_sdca_read_prop()
193 	nval = hweight32(prop->source_ports);  in rt711_sdca_read_prop()
194 	prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,  in rt711_sdca_read_prop()
195 		sizeof(*prop->src_dpn_prop), GFP_KERNEL);  in rt711_sdca_read_prop()
196 	if (!prop->src_dpn_prop)  in rt711_sdca_read_prop()
197 		return -ENOMEM;  in rt711_sdca_read_prop()
200 	dpn = prop->src_dpn_prop;  in rt711_sdca_read_prop()
201 	addr = prop->source_ports;  in rt711_sdca_read_prop()
211 	nval = hweight32(prop->sink_ports);  in rt711_sdca_read_prop()
212 	prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,  in rt711_sdca_read_prop()
213 		sizeof(*prop->sink_dpn_prop), GFP_KERNEL);  in rt711_sdca_read_prop()
214 	if (!prop->sink_dpn_prop)  in rt711_sdca_read_prop()
215 		return -ENOMEM;  in rt711_sdca_read_prop()
218 	dpn = prop->sink_dpn_prop;  in rt711_sdca_read_prop()
219 	addr = prop->sink_ports;  in rt711_sdca_read_prop()
229 	prop->clk_stop_timeout = 700;  in rt711_sdca_read_prop()
231 	/* wake-up event */  in rt711_sdca_read_prop()
232 	prop->wake_capable = 1;  in rt711_sdca_read_prop()
237 static int rt711_sdca_interrupt_callback(struct sdw_slave *slave,  in rt711_sdca_interrupt_callback()  argument
240 	struct rt711_sdca_priv *rt711 = dev_get_drvdata(&slave->dev);  in rt711_sdca_interrupt_callback()
245 	dev_dbg(&slave->dev,  in rt711_sdca_interrupt_callback()
247 		status->control_port, status->sdca_cascade);  in rt711_sdca_interrupt_callback()
249 	if (cancel_delayed_work_sync(&rt711->jack_detect_work)) {  in rt711_sdca_interrupt_callback()
250 		dev_warn(&slave->dev, "%s the pending delayed_work was cancelled", __func__);  in rt711_sdca_interrupt_callback()
252 		if (rt711->scp_sdca_stat2)  in rt711_sdca_interrupt_callback()
253 			scp_sdca_stat2 = rt711->scp_sdca_stat2;  in rt711_sdca_interrupt_callback()
263 	mutex_lock(&rt711->disable_irq_lock);  in rt711_sdca_interrupt_callback()
265 	ret = sdw_read_no_pm(rt711->slave, SDW_SCP_SDCA_INT1);  in rt711_sdca_interrupt_callback()
268 	rt711->scp_sdca_stat1 = ret;  in rt711_sdca_interrupt_callback()
269 	ret = sdw_read_no_pm(rt711->slave, SDW_SCP_SDCA_INT2);  in rt711_sdca_interrupt_callback()
272 	rt711->scp_sdca_stat2 = ret;  in rt711_sdca_interrupt_callback()
274 		rt711->scp_sdca_stat2 |= scp_sdca_stat2;  in rt711_sdca_interrupt_callback()
278 		ret = sdw_read_no_pm(rt711->slave, SDW_SCP_SDCA_INT1);  in rt711_sdca_interrupt_callback()
282 			ret = sdw_write_no_pm(rt711->slave, SDW_SCP_SDCA_INT1,  in rt711_sdca_interrupt_callback()
287 		ret = sdw_read_no_pm(rt711->slave, SDW_SCP_SDCA_INT2);  in rt711_sdca_interrupt_callback()
291 			ret = sdw_write_no_pm(rt711->slave, SDW_SCP_SDCA_INT2,  in rt711_sdca_interrupt_callback()
298 		ret = sdw_read_no_pm(rt711->slave, SDW_DP0_INT);  in rt711_sdca_interrupt_callback()
303 		ret = sdw_read_no_pm(rt711->slave, SDW_SCP_SDCA_INT1);  in rt711_sdca_interrupt_callback()
308 		ret = sdw_read_no_pm(rt711->slave, SDW_SCP_SDCA_INT2);  in rt711_sdca_interrupt_callback()
319 		dev_warn(&slave->dev,  in rt711_sdca_interrupt_callback()
321 			rt711->scp_sdca_stat1, rt711->scp_sdca_stat2);  in rt711_sdca_interrupt_callback()
323 	if (status->sdca_cascade && !rt711->disable_irq)  in rt711_sdca_interrupt_callback()
325 			&rt711->jack_detect_work, msecs_to_jiffies(30));  in rt711_sdca_interrupt_callback()
327 	mutex_unlock(&rt711->disable_irq_lock);  in rt711_sdca_interrupt_callback()
332 	mutex_unlock(&rt711->disable_irq_lock);  in rt711_sdca_interrupt_callback()
343 static int rt711_sdca_sdw_probe(struct sdw_slave *slave,  in rt711_sdca_sdw_probe()  argument
349 	mbq_regmap = devm_regmap_init_sdw_mbq(slave, &rt711_sdca_mbq_regmap);  in rt711_sdca_sdw_probe()
353 	regmap = devm_regmap_init_sdw(slave, &rt711_sdca_regmap);  in rt711_sdca_sdw_probe()
357 	return rt711_sdca_init(&slave->dev, regmap, mbq_regmap, slave);  in rt711_sdca_sdw_probe()
360 static int rt711_sdca_sdw_remove(struct sdw_slave *slave)  in rt711_sdca_sdw_remove()  argument
362 	struct rt711_sdca_priv *rt711 = dev_get_drvdata(&slave->dev);  in rt711_sdca_sdw_remove()
364 	if (rt711->hw_init) {  in rt711_sdca_sdw_remove()
365 		cancel_delayed_work_sync(&rt711->jack_detect_work);  in rt711_sdca_sdw_remove()
366 		cancel_delayed_work_sync(&rt711->jack_btn_check_work);  in rt711_sdca_sdw_remove()
369 	pm_runtime_disable(&slave->dev);  in rt711_sdca_sdw_remove()
371 	mutex_destroy(&rt711->calibrate_mutex);  in rt711_sdca_sdw_remove()
372 	mutex_destroy(&rt711->disable_irq_lock);  in rt711_sdca_sdw_remove()
383 static int __maybe_unused rt711_sdca_dev_suspend(struct device *dev)  in rt711_sdca_dev_suspend()  argument
385 	struct rt711_sdca_priv *rt711 = dev_get_drvdata(dev);  in rt711_sdca_dev_suspend()
387 	if (!rt711->hw_init)  in rt711_sdca_dev_suspend()
390 	cancel_delayed_work_sync(&rt711->jack_detect_work);  in rt711_sdca_dev_suspend()
391 	cancel_delayed_work_sync(&rt711->jack_btn_check_work);  in rt711_sdca_dev_suspend()
393 	regcache_cache_only(rt711->regmap, true);  in rt711_sdca_dev_suspend()
394 	regcache_cache_only(rt711->mbq_regmap, true);  in rt711_sdca_dev_suspend()
399 static int __maybe_unused rt711_sdca_dev_system_suspend(struct device *dev)  in rt711_sdca_dev_system_suspend()  argument
401 	struct rt711_sdca_priv *rt711_sdca = dev_get_drvdata(dev);  in rt711_sdca_dev_system_suspend()
402 	struct sdw_slave *slave = dev_to_sdw_dev(dev);  in rt711_sdca_dev_system_suspend()  local
405 	if (!rt711_sdca->hw_init)  in rt711_sdca_dev_system_suspend()
413 	mutex_lock(&rt711_sdca->disable_irq_lock);  in rt711_sdca_dev_system_suspend()
414 	rt711_sdca->disable_irq = true;  in rt711_sdca_dev_system_suspend()
415 	ret1 = sdw_update_no_pm(slave, SDW_SCP_SDCA_INTMASK1,  in rt711_sdca_dev_system_suspend()
417 	ret2 = sdw_update_no_pm(slave, SDW_SCP_SDCA_INTMASK2,  in rt711_sdca_dev_system_suspend()
419 	mutex_unlock(&rt711_sdca->disable_irq_lock);  in rt711_sdca_dev_system_suspend()
423 		dev_dbg(&slave->dev, "%s: could not disable SDCA interrupts\n:", __func__);  in rt711_sdca_dev_system_suspend()
426 	return rt711_sdca_dev_suspend(dev);  in rt711_sdca_dev_system_suspend()
431 static int __maybe_unused rt711_sdca_dev_resume(struct device *dev)  in rt711_sdca_dev_resume()  argument
433 	struct sdw_slave *slave = dev_to_sdw_dev(dev);  in rt711_sdca_dev_resume()  local
434 	struct rt711_sdca_priv *rt711 = dev_get_drvdata(dev);  in rt711_sdca_dev_resume()
437 	if (!rt711->first_hw_init)  in rt711_sdca_dev_resume()
440 	if (!slave->unattach_request) {  in rt711_sdca_dev_resume()
441 		mutex_lock(&rt711->disable_irq_lock);  in rt711_sdca_dev_resume()
442 		if (rt711->disable_irq == true) {  in rt711_sdca_dev_resume()
443 			sdw_write_no_pm(slave, SDW_SCP_SDCA_INTMASK1, SDW_SCP_SDCA_INTMASK_SDCA_0);  in rt711_sdca_dev_resume()
444 			sdw_write_no_pm(slave, SDW_SCP_SDCA_INTMASK2, SDW_SCP_SDCA_INTMASK_SDCA_8);  in rt711_sdca_dev_resume()
445 			rt711->disable_irq = false;  in rt711_sdca_dev_resume()
447 		mutex_unlock(&rt711->disable_irq_lock);  in rt711_sdca_dev_resume()
451 	time = wait_for_completion_timeout(&slave->initialization_complete,  in rt711_sdca_dev_resume()
454 		dev_err(&slave->dev, "Initialization not complete, timed out\n");  in rt711_sdca_dev_resume()
455 		sdw_show_ping_status(slave->bus, true);  in rt711_sdca_dev_resume()
457 		return -ETIMEDOUT;  in rt711_sdca_dev_resume()
461 	slave->unattach_request = 0;  in rt711_sdca_dev_resume()
462 	regcache_cache_only(rt711->regmap, false);  in rt711_sdca_dev_resume()
463 	regcache_sync(rt711->regmap);  in rt711_sdca_dev_resume()
464 	regcache_cache_only(rt711->mbq_regmap, false);  in rt711_sdca_dev_resume()
465 	regcache_sync(rt711->mbq_regmap);  in rt711_sdca_dev_resume()
476 		.name = "rt711-sdca",