1 // SPDX-License-Identifier: GPL-2.0-only
3 // rt721-sdca-sdw.c -- rt721 SDCA ALSA SoC audio driver
16 #include "rt721-sdca.h"
17 #include "rt721-sdca-sdw.h"
18 #include "rt-sdw-common.h"
20 static bool rt721_sdca_readable_register(struct device *dev, unsigned int reg)  in rt721_sdca_readable_register()  argument
44 static bool rt721_sdca_volatile_register(struct device *dev, unsigned int reg)  in rt721_sdca_volatile_register()  argument
63 static bool rt721_sdca_mbq_readable_register(struct device *dev, unsigned int reg)  in rt721_sdca_mbq_readable_register()  argument
133 static bool rt721_sdca_mbq_volatile_register(struct device *dev, unsigned int reg)  in rt721_sdca_mbq_volatile_register()  argument
176 	.name = "sdw-mbq",
189 static int rt721_sdca_update_status(struct sdw_slave *slave,  in rt721_sdca_update_status()  argument
192 	struct rt721_sdca_priv *rt721 = dev_get_drvdata(&slave->dev);  in rt721_sdca_update_status()
195 		rt721->hw_init = false;  in rt721_sdca_update_status()
198 		if (rt721->hs_jack) {  in rt721_sdca_update_status()
205 			sdw_write_no_pm(rt721->slave, SDW_SCP_SDCA_INTMASK1,  in rt721_sdca_update_status()
207 			sdw_write_no_pm(rt721->slave, SDW_SCP_SDCA_INTMASK2,  in rt721_sdca_update_status()
213 	 * Perform initialization only if slave status is present and  in rt721_sdca_update_status()
216 	if (rt721->hw_init || status != SDW_SLAVE_ATTACHED)  in rt721_sdca_update_status()
219 	/* perform I/O transfers required for Slave initialization */  in rt721_sdca_update_status()
220 	return rt721_sdca_io_init(&slave->dev, slave);  in rt721_sdca_update_status()
223 static int rt721_sdca_read_prop(struct sdw_slave *slave)  in rt721_sdca_read_prop()  argument
225 	struct sdw_slave_prop *prop = &slave->prop;  in rt721_sdca_read_prop()
232 	sdw_slave_read_prop(slave);  in rt721_sdca_read_prop()
233 	prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;  in rt721_sdca_read_prop()
234 	prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;  in rt721_sdca_read_prop()
236 	prop->paging_support = true;  in rt721_sdca_read_prop()
240 	 * port = 2 for headset-mic capture  in rt721_sdca_read_prop()
242 	 * port = 6 for digital-mic capture  in rt721_sdca_read_prop()
244 	prop->source_ports = BIT(6) | BIT(2); /* BITMAP: 01000100 */  in rt721_sdca_read_prop()
245 	prop->sink_ports = BIT(3) | BIT(1); /* BITMAP:  00001010 */  in rt721_sdca_read_prop()
247 	nval = hweight32(prop->source_ports);  in rt721_sdca_read_prop()
248 	prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,  in rt721_sdca_read_prop()
249 		sizeof(*prop->src_dpn_prop), GFP_KERNEL);  in rt721_sdca_read_prop()
250 	if (!prop->src_dpn_prop)  in rt721_sdca_read_prop()
251 		return -ENOMEM;  in rt721_sdca_read_prop()
254 	dpn = prop->src_dpn_prop;  in rt721_sdca_read_prop()
255 	addr = prop->source_ports;  in rt721_sdca_read_prop()
265 	nval = hweight32(prop->sink_ports);  in rt721_sdca_read_prop()
266 	prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,  in rt721_sdca_read_prop()
267 		sizeof(*prop->sink_dpn_prop), GFP_KERNEL);  in rt721_sdca_read_prop()
268 	if (!prop->sink_dpn_prop)  in rt721_sdca_read_prop()
269 		return -ENOMEM;  in rt721_sdca_read_prop()
272 	dpn = prop->sink_dpn_prop;  in rt721_sdca_read_prop()
273 	addr = prop->sink_ports;  in rt721_sdca_read_prop()
283 	prop->clk_stop_timeout = 1380;  in rt721_sdca_read_prop()
285 	/* wake-up event */  in rt721_sdca_read_prop()
286 	prop->wake_capable = 1;  in rt721_sdca_read_prop()
288 	/* Three data lanes are supported by rt721-sdca codec */  in rt721_sdca_read_prop()
289 	prop->lane_control_support = true;  in rt721_sdca_read_prop()
294 static int rt721_sdca_interrupt_callback(struct sdw_slave *slave,  in rt721_sdca_interrupt_callback()  argument
297 	struct rt721_sdca_priv *rt721 = dev_get_drvdata(&slave->dev);  in rt721_sdca_interrupt_callback()
302 	if (cancel_delayed_work_sync(&rt721->jack_detect_work)) {  in rt721_sdca_interrupt_callback()
303 		dev_warn(&slave->dev, "%s the pending delayed_work was cancelled", __func__);  in rt721_sdca_interrupt_callback()
305 		if (rt721->scp_sdca_stat2)  in rt721_sdca_interrupt_callback()
306 			scp_sdca_stat2 = rt721->scp_sdca_stat2;  in rt721_sdca_interrupt_callback()
316 	mutex_lock(&rt721->disable_irq_lock);  in rt721_sdca_interrupt_callback()
318 	ret = sdw_read_no_pm(rt721->slave, SDW_SCP_SDCA_INT1);  in rt721_sdca_interrupt_callback()
322 	rt721->scp_sdca_stat1 = ret;  in rt721_sdca_interrupt_callback()
323 	ret = sdw_read_no_pm(rt721->slave, SDW_SCP_SDCA_INT2);  in rt721_sdca_interrupt_callback()
327 	rt721->scp_sdca_stat2 = ret;  in rt721_sdca_interrupt_callback()
329 		rt721->scp_sdca_stat2 |= scp_sdca_stat2;  in rt721_sdca_interrupt_callback()
332 		ret = sdw_read_no_pm(rt721->slave, SDW_SCP_SDCA_INT1);  in rt721_sdca_interrupt_callback()
336 			ret = sdw_update_no_pm(rt721->slave, SDW_SCP_SDCA_INT1,  in rt721_sdca_interrupt_callback()
341 		ret = sdw_read_no_pm(rt721->slave, SDW_SCP_SDCA_INT2);  in rt721_sdca_interrupt_callback()
345 			ret = sdw_write_no_pm(rt721->slave, SDW_SCP_SDCA_INT2,  in rt721_sdca_interrupt_callback()
352 		ret = sdw_read_no_pm(rt721->slave, SDW_DP0_INT);  in rt721_sdca_interrupt_callback()
357 		ret = sdw_read_no_pm(rt721->slave, SDW_SCP_SDCA_INT1);  in rt721_sdca_interrupt_callback()
362 		ret = sdw_read_no_pm(rt721->slave, SDW_SCP_SDCA_INT2);  in rt721_sdca_interrupt_callback()
373 		dev_warn(&slave->dev,  in rt721_sdca_interrupt_callback()
375 			rt721->scp_sdca_stat1, rt721->scp_sdca_stat2);  in rt721_sdca_interrupt_callback()
376 	ret = sdw_read_no_pm(rt721->slave, SDW_SCP_SDCA_INT1);  in rt721_sdca_interrupt_callback()
377 	ret = sdw_read_no_pm(rt721->slave, SDW_SCP_SDCA_INT2);  in rt721_sdca_interrupt_callback()
379 	if (status->sdca_cascade && !rt721->disable_irq)  in rt721_sdca_interrupt_callback()
381 			&rt721->jack_detect_work, msecs_to_jiffies(280));  in rt721_sdca_interrupt_callback()
383 	mutex_unlock(&rt721->disable_irq_lock);  in rt721_sdca_interrupt_callback()
388 	mutex_unlock(&rt721->disable_irq_lock);  in rt721_sdca_interrupt_callback()
399 static int rt721_sdca_sdw_probe(struct sdw_slave *slave,  in rt721_sdca_sdw_probe()  argument
405 	mbq_regmap = devm_regmap_init_sdw_mbq(slave, &rt721_sdca_mbq_regmap);  in rt721_sdca_sdw_probe()
409 	regmap = devm_regmap_init_sdw(slave, &rt721_sdca_regmap);  in rt721_sdca_sdw_probe()
413 	return rt721_sdca_init(&slave->dev, regmap, mbq_regmap, slave);  in rt721_sdca_sdw_probe()
416 static int rt721_sdca_sdw_remove(struct sdw_slave *slave)  in rt721_sdca_sdw_remove()  argument
418 	struct rt721_sdca_priv *rt721 = dev_get_drvdata(&slave->dev);  in rt721_sdca_sdw_remove()
420 	if (rt721->hw_init) {  in rt721_sdca_sdw_remove()
421 		cancel_delayed_work_sync(&rt721->jack_detect_work);  in rt721_sdca_sdw_remove()
422 		cancel_delayed_work_sync(&rt721->jack_btn_check_work);  in rt721_sdca_sdw_remove()
425 	if (rt721->first_hw_init)  in rt721_sdca_sdw_remove()
426 		pm_runtime_disable(&slave->dev);  in rt721_sdca_sdw_remove()
428 	mutex_destroy(&rt721->calibrate_mutex);  in rt721_sdca_sdw_remove()
429 	mutex_destroy(&rt721->disable_irq_lock);  in rt721_sdca_sdw_remove()
440 static int __maybe_unused rt721_sdca_dev_suspend(struct device *dev)  in rt721_sdca_dev_suspend()  argument
442 	struct rt721_sdca_priv *rt721 = dev_get_drvdata(dev);  in rt721_sdca_dev_suspend()
444 	if (!rt721->hw_init)  in rt721_sdca_dev_suspend()
447 	cancel_delayed_work_sync(&rt721->jack_detect_work);  in rt721_sdca_dev_suspend()
448 	cancel_delayed_work_sync(&rt721->jack_btn_check_work);  in rt721_sdca_dev_suspend()
450 	regcache_cache_only(rt721->regmap, true);  in rt721_sdca_dev_suspend()
451 	regcache_cache_only(rt721->mbq_regmap, true);  in rt721_sdca_dev_suspend()
456 static int __maybe_unused rt721_sdca_dev_system_suspend(struct device *dev)  in rt721_sdca_dev_system_suspend()  argument
458 	struct rt721_sdca_priv *rt721_sdca = dev_get_drvdata(dev);  in rt721_sdca_dev_system_suspend()
459 	struct sdw_slave *slave = dev_to_sdw_dev(dev);  in rt721_sdca_dev_system_suspend()  local
462 	if (!rt721_sdca->hw_init)  in rt721_sdca_dev_system_suspend()
470 	mutex_lock(&rt721_sdca->disable_irq_lock);  in rt721_sdca_dev_system_suspend()
471 	rt721_sdca->disable_irq = true;  in rt721_sdca_dev_system_suspend()
472 	ret1 = sdw_update_no_pm(slave, SDW_SCP_SDCA_INTMASK1,  in rt721_sdca_dev_system_suspend()
474 	ret2 = sdw_update_no_pm(slave, SDW_SCP_SDCA_INTMASK2,  in rt721_sdca_dev_system_suspend()
476 	mutex_unlock(&rt721_sdca->disable_irq_lock);  in rt721_sdca_dev_system_suspend()
480 		dev_dbg(&slave->dev, "%s: could not disable SDCA interrupts\n:", __func__);  in rt721_sdca_dev_system_suspend()
483 	return rt721_sdca_dev_suspend(dev);  in rt721_sdca_dev_system_suspend()
488 static int __maybe_unused rt721_sdca_dev_resume(struct device *dev)  in rt721_sdca_dev_resume()  argument
490 	struct sdw_slave *slave = dev_to_sdw_dev(dev);  in rt721_sdca_dev_resume()  local
491 	struct rt721_sdca_priv *rt721 = dev_get_drvdata(dev);  in rt721_sdca_dev_resume()
494 	if (!rt721->first_hw_init)  in rt721_sdca_dev_resume()
497 	if (!slave->unattach_request) {  in rt721_sdca_dev_resume()
498 		mutex_lock(&rt721->disable_irq_lock);  in rt721_sdca_dev_resume()
499 		if (rt721->disable_irq == true) {  in rt721_sdca_dev_resume()
500 			sdw_write_no_pm(slave, SDW_SCP_SDCA_INTMASK1, SDW_SCP_SDCA_INTMASK_SDCA_0);  in rt721_sdca_dev_resume()
501 			sdw_write_no_pm(slave, SDW_SCP_SDCA_INTMASK2, SDW_SCP_SDCA_INTMASK_SDCA_8);  in rt721_sdca_dev_resume()
502 			rt721->disable_irq = false;  in rt721_sdca_dev_resume()
504 		mutex_unlock(&rt721->disable_irq_lock);  in rt721_sdca_dev_resume()
508 	time = wait_for_completion_timeout(&slave->initialization_complete,  in rt721_sdca_dev_resume()
511 		dev_err(&slave->dev, "Initialization not complete, timed out\n");  in rt721_sdca_dev_resume()
512 		sdw_show_ping_status(slave->bus, true);  in rt721_sdca_dev_resume()
514 		return -ETIMEDOUT;  in rt721_sdca_dev_resume()
518 	slave->unattach_request = 0;  in rt721_sdca_dev_resume()
519 	regcache_cache_only(rt721->regmap, false);  in rt721_sdca_dev_resume()
520 	regcache_sync(rt721->regmap);  in rt721_sdca_dev_resume()
521 	regcache_cache_only(rt721->mbq_regmap, false);  in rt721_sdca_dev_resume()
522 	regcache_sync(rt721->mbq_regmap);  in rt721_sdca_dev_resume()
533 		.name = "rt721-sdca",