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
48 static bool rt712_sdca_volatile_register(struct device *dev, unsigned int reg)  in rt712_sdca_volatile_register()  argument
74 static bool rt712_sdca_mbq_readable_register(struct device *dev, unsigned int reg)  in rt712_sdca_mbq_readable_register()  argument
110 static bool rt712_sdca_mbq_volatile_register(struct device *dev, unsigned int reg)  in rt712_sdca_mbq_volatile_register()  argument
143 	.name = "sdw-mbq",
156 static int rt712_sdca_update_status(struct sdw_slave *slave,  in rt712_sdca_update_status()  argument
159 	struct rt712_sdca_priv *rt712 = dev_get_drvdata(&slave->dev);  in rt712_sdca_update_status()
162 		rt712->hw_init = false;  in rt712_sdca_update_status()
165 		if (rt712->hs_jack) {  in rt712_sdca_update_status()
172 			sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INTMASK1,  in rt712_sdca_update_status()
174 			sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INTMASK2,  in rt712_sdca_update_status()
180 	 * Perform initialization only if slave status is present and  in rt712_sdca_update_status()
183 	if (rt712->hw_init || status != SDW_SLAVE_ATTACHED)  in rt712_sdca_update_status()
186 	/* perform I/O transfers required for Slave initialization */  in rt712_sdca_update_status()
187 	return rt712_sdca_io_init(&slave->dev, slave);  in rt712_sdca_update_status()
190 static int rt712_sdca_read_prop(struct sdw_slave *slave)  in rt712_sdca_read_prop()  argument
192 	struct sdw_slave_prop *prop = &slave->prop;  in rt712_sdca_read_prop()
199 	sdw_slave_read_prop(slave);  in rt712_sdca_read_prop()
201 	prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;  in rt712_sdca_read_prop()
202 	prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;  in rt712_sdca_read_prop()
204 	prop->paging_support = true;  in rt712_sdca_read_prop()
207 	prop->source_ports = BIT(8) | BIT(4); /* BITMAP: 100010000 */  in rt712_sdca_read_prop()
208 	prop->sink_ports = BIT(3) | BIT(1); /* BITMAP:  00001010 */  in rt712_sdca_read_prop()
210 	nval = hweight32(prop->source_ports);  in rt712_sdca_read_prop()
211 	prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,  in rt712_sdca_read_prop()
212 		sizeof(*prop->src_dpn_prop), GFP_KERNEL);  in rt712_sdca_read_prop()
213 	if (!prop->src_dpn_prop)  in rt712_sdca_read_prop()
214 		return -ENOMEM;  in rt712_sdca_read_prop()
217 	dpn = prop->src_dpn_prop;  in rt712_sdca_read_prop()
218 	addr = prop->source_ports;  in rt712_sdca_read_prop()
228 	nval = hweight32(prop->sink_ports);  in rt712_sdca_read_prop()
229 	prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,  in rt712_sdca_read_prop()
230 		sizeof(*prop->sink_dpn_prop), GFP_KERNEL);  in rt712_sdca_read_prop()
231 	if (!prop->sink_dpn_prop)  in rt712_sdca_read_prop()
232 		return -ENOMEM;  in rt712_sdca_read_prop()
235 	dpn = prop->sink_dpn_prop;  in rt712_sdca_read_prop()
236 	addr = prop->sink_ports;  in rt712_sdca_read_prop()
246 	prop->clk_stop_timeout = 1380;  in rt712_sdca_read_prop()
248 	/* wake-up event */  in rt712_sdca_read_prop()
249 	prop->wake_capable = 1;  in rt712_sdca_read_prop()
254 static int rt712_sdca_interrupt_callback(struct sdw_slave *slave,  in rt712_sdca_interrupt_callback()  argument
257 	struct rt712_sdca_priv *rt712 = dev_get_drvdata(&slave->dev);  in rt712_sdca_interrupt_callback()
262 	dev_dbg(&slave->dev,  in rt712_sdca_interrupt_callback()
264 		status->control_port, status->sdca_cascade);  in rt712_sdca_interrupt_callback()
266 	if (cancel_delayed_work_sync(&rt712->jack_detect_work)) {  in rt712_sdca_interrupt_callback()
267 		dev_warn(&slave->dev, "%s the pending delayed_work was cancelled", __func__);  in rt712_sdca_interrupt_callback()
269 		if (rt712->scp_sdca_stat2)  in rt712_sdca_interrupt_callback()
270 			scp_sdca_stat2 = rt712->scp_sdca_stat2;  in rt712_sdca_interrupt_callback()
280 	mutex_lock(&rt712->disable_irq_lock);  in rt712_sdca_interrupt_callback()
282 	ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT1);  in rt712_sdca_interrupt_callback()
285 	rt712->scp_sdca_stat1 = ret;  in rt712_sdca_interrupt_callback()
286 	ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT2);  in rt712_sdca_interrupt_callback()
289 	rt712->scp_sdca_stat2 = ret;  in rt712_sdca_interrupt_callback()
291 		rt712->scp_sdca_stat2 |= scp_sdca_stat2;  in rt712_sdca_interrupt_callback()
295 		ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT1);  in rt712_sdca_interrupt_callback()
299 			ret = sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INT1,  in rt712_sdca_interrupt_callback()
304 		ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT2);  in rt712_sdca_interrupt_callback()
308 			ret = sdw_write_no_pm(rt712->slave, SDW_SCP_SDCA_INT2,  in rt712_sdca_interrupt_callback()
315 		ret = sdw_read_no_pm(rt712->slave, SDW_DP0_INT);  in rt712_sdca_interrupt_callback()
320 		ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT1);  in rt712_sdca_interrupt_callback()
325 		ret = sdw_read_no_pm(rt712->slave, SDW_SCP_SDCA_INT2);  in rt712_sdca_interrupt_callback()
336 		dev_warn(&slave->dev,  in rt712_sdca_interrupt_callback()
338 			rt712->scp_sdca_stat1, rt712->scp_sdca_stat2);  in rt712_sdca_interrupt_callback()
340 	if (status->sdca_cascade && !rt712->disable_irq)  in rt712_sdca_interrupt_callback()
342 			&rt712->jack_detect_work, msecs_to_jiffies(30));  in rt712_sdca_interrupt_callback()
344 	mutex_unlock(&rt712->disable_irq_lock);  in rt712_sdca_interrupt_callback()
349 	mutex_unlock(&rt712->disable_irq_lock);  in rt712_sdca_interrupt_callback()
360 static int rt712_sdca_sdw_probe(struct sdw_slave *slave,  in rt712_sdca_sdw_probe()  argument
366 	mbq_regmap = devm_regmap_init_sdw_mbq(slave, &rt712_sdca_mbq_regmap);  in rt712_sdca_sdw_probe()
370 	regmap = devm_regmap_init_sdw(slave, &rt712_sdca_regmap);  in rt712_sdca_sdw_probe()
374 	return rt712_sdca_init(&slave->dev, regmap, mbq_regmap, slave);  in rt712_sdca_sdw_probe()
377 static int rt712_sdca_sdw_remove(struct sdw_slave *slave)  in rt712_sdca_sdw_remove()  argument
379 	struct rt712_sdca_priv *rt712 = dev_get_drvdata(&slave->dev);  in rt712_sdca_sdw_remove()
381 	if (rt712->hw_init) {  in rt712_sdca_sdw_remove()
382 		cancel_delayed_work_sync(&rt712->jack_detect_work);  in rt712_sdca_sdw_remove()
383 		cancel_delayed_work_sync(&rt712->jack_btn_check_work);  in rt712_sdca_sdw_remove()
386 	pm_runtime_disable(&slave->dev);  in rt712_sdca_sdw_remove()
388 	mutex_destroy(&rt712->calibrate_mutex);  in rt712_sdca_sdw_remove()
389 	mutex_destroy(&rt712->disable_irq_lock);  in rt712_sdca_sdw_remove()
403 static int __maybe_unused rt712_sdca_dev_suspend(struct device *dev)  in rt712_sdca_dev_suspend()  argument
405 	struct rt712_sdca_priv *rt712 = dev_get_drvdata(dev);  in rt712_sdca_dev_suspend()
407 	if (!rt712->hw_init)  in rt712_sdca_dev_suspend()
410 	cancel_delayed_work_sync(&rt712->jack_detect_work);  in rt712_sdca_dev_suspend()
411 	cancel_delayed_work_sync(&rt712->jack_btn_check_work);  in rt712_sdca_dev_suspend()
413 	regcache_cache_only(rt712->regmap, true);  in rt712_sdca_dev_suspend()
414 	regcache_cache_only(rt712->mbq_regmap, true);  in rt712_sdca_dev_suspend()
419 static int __maybe_unused rt712_sdca_dev_system_suspend(struct device *dev)  in rt712_sdca_dev_system_suspend()  argument
421 	struct rt712_sdca_priv *rt712_sdca = dev_get_drvdata(dev);  in rt712_sdca_dev_system_suspend()
422 	struct sdw_slave *slave = dev_to_sdw_dev(dev);  in rt712_sdca_dev_system_suspend()  local
425 	if (!rt712_sdca->hw_init)  in rt712_sdca_dev_system_suspend()
433 	mutex_lock(&rt712_sdca->disable_irq_lock);  in rt712_sdca_dev_system_suspend()
434 	rt712_sdca->disable_irq = true;  in rt712_sdca_dev_system_suspend()
435 	ret1 = sdw_update_no_pm(slave, SDW_SCP_SDCA_INTMASK1,  in rt712_sdca_dev_system_suspend()
437 	ret2 = sdw_update_no_pm(slave, SDW_SCP_SDCA_INTMASK2,  in rt712_sdca_dev_system_suspend()
439 	mutex_unlock(&rt712_sdca->disable_irq_lock);  in rt712_sdca_dev_system_suspend()
443 		dev_dbg(&slave->dev, "%s: could not disable SDCA interrupts\n:", __func__);  in rt712_sdca_dev_system_suspend()
446 	return rt712_sdca_dev_suspend(dev);  in rt712_sdca_dev_system_suspend()
451 static int __maybe_unused rt712_sdca_dev_resume(struct device *dev)  in rt712_sdca_dev_resume()  argument
453 	struct sdw_slave *slave = dev_to_sdw_dev(dev);  in rt712_sdca_dev_resume()  local
454 	struct rt712_sdca_priv *rt712 = dev_get_drvdata(dev);  in rt712_sdca_dev_resume()
457 	if (!rt712->first_hw_init)  in rt712_sdca_dev_resume()
460 	if (!slave->unattach_request) {  in rt712_sdca_dev_resume()
461 		mutex_lock(&rt712->disable_irq_lock);  in rt712_sdca_dev_resume()
462 		if (rt712->disable_irq == true) {  in rt712_sdca_dev_resume()
464 			sdw_write_no_pm(slave, SDW_SCP_SDCA_INTMASK1, SDW_SCP_SDCA_INTMASK_SDCA_0);  in rt712_sdca_dev_resume()
465 			sdw_write_no_pm(slave, SDW_SCP_SDCA_INTMASK2, SDW_SCP_SDCA_INTMASK_SDCA_8);  in rt712_sdca_dev_resume()
466 			rt712->disable_irq = false;  in rt712_sdca_dev_resume()
468 		mutex_unlock(&rt712->disable_irq_lock);  in rt712_sdca_dev_resume()
472 	time = wait_for_completion_timeout(&slave->initialization_complete,  in rt712_sdca_dev_resume()
475 		dev_err(&slave->dev, "%s: Initialization not complete, timed out\n", __func__);  in rt712_sdca_dev_resume()
476 		sdw_show_ping_status(slave->bus, true);  in rt712_sdca_dev_resume()
478 		return -ETIMEDOUT;  in rt712_sdca_dev_resume()
482 	slave->unattach_request = 0;  in rt712_sdca_dev_resume()
483 	regcache_cache_only(rt712->regmap, false);  in rt712_sdca_dev_resume()
484 	regcache_sync(rt712->regmap);  in rt712_sdca_dev_resume()
485 	regcache_cache_only(rt712->mbq_regmap, false);  in rt712_sdca_dev_resume()
486 	regcache_sync(rt712->mbq_regmap);  in rt712_sdca_dev_resume()
497 		.name = "rt712-sdca",