3  * adv7511_cec.c - Analog Devices ADV7511/33 cec driver
16 #include "adv7511.h"
35 static void adv_cec_tx_raw_status(struct adv7511 *adv7511, u8 tx_raw_status)  in adv_cec_tx_raw_status()  argument
37 	unsigned int offset = adv7511->reg_cec_offset;  in adv_cec_tx_raw_status()
40 	if (regmap_read(adv7511->regmap_cec,  in adv_cec_tx_raw_status()
48 		cec_transmit_attempt_done(adv7511->cec_adap,  in adv_cec_tx_raw_status()
64 		if (regmap_read(adv7511->regmap_cec,  in adv_cec_tx_raw_status()
76 		cec_transmit_done(adv7511->cec_adap, status,  in adv_cec_tx_raw_status()
81 		cec_transmit_attempt_done(adv7511->cec_adap, CEC_TX_STATUS_OK);  in adv_cec_tx_raw_status()
86 static void adv7511_cec_rx(struct adv7511 *adv7511, int rx_buf)  in adv7511_cec_rx()  argument
88 	unsigned int offset = adv7511->reg_cec_offset;  in adv7511_cec_rx()
94 	if (regmap_read(adv7511->regmap_cec,  in adv7511_cec_rx()
107 		regmap_read(adv7511->regmap_cec,  in adv7511_cec_rx()
114 	regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_rx()
117 	regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_rx()
120 	cec_received_msg(adv7511->cec_adap, &msg);  in adv7511_cec_rx()
123 void adv7511_cec_irq_process(struct adv7511 *adv7511, unsigned int irq1)  in adv7511_cec_irq_process()  argument
125 	unsigned int offset = adv7511->reg_cec_offset;  in adv7511_cec_irq_process()
137 		adv_cec_tx_raw_status(adv7511, irq1);  in adv7511_cec_irq_process()
142 	if (regmap_read(adv7511->regmap_cec,  in adv7511_cec_irq_process()
174 		adv7511_cec_rx(adv7511, rx_buf);  in adv7511_cec_irq_process()
180 	struct adv7511 *adv7511 = cec_get_drvdata(adap);  in adv7511_cec_adap_enable()  local
181 	unsigned int offset = adv7511->reg_cec_offset;  in adv7511_cec_adap_enable()
183 	if (adv7511->i2c_cec == NULL)  in adv7511_cec_adap_enable()
186 	if (!adv7511->cec_enabled_adap && enable) {  in adv7511_cec_adap_enable()
188 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_adap_enable()
192 		regmap_write(adv7511->regmap_cec,  in adv7511_cec_adap_enable()
194 		regmap_write(adv7511->regmap_cec,  in adv7511_cec_adap_enable()
197 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_adap_enable()
204 		regmap_update_bits(adv7511->regmap,  in adv7511_cec_adap_enable()
207 	} else if (adv7511->cec_enabled_adap && !enable) {  in adv7511_cec_adap_enable()
208 		regmap_update_bits(adv7511->regmap,  in adv7511_cec_adap_enable()
211 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_adap_enable()
215 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_adap_enable()
218 		adv7511->cec_valid_addrs = 0;  in adv7511_cec_adap_enable()
220 	adv7511->cec_enabled_adap = enable;  in adv7511_cec_adap_enable()
226 	struct adv7511 *adv7511 = cec_get_drvdata(adap);  in adv7511_cec_adap_log_addr()  local
227 	unsigned int offset = adv7511->reg_cec_offset;  in adv7511_cec_adap_log_addr()
230 	if (!adv7511->cec_enabled_adap)  in adv7511_cec_adap_log_addr()
234 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_adap_log_addr()
237 		adv7511->cec_valid_addrs = 0;  in adv7511_cec_adap_log_addr()
242 		bool is_valid = adv7511->cec_valid_addrs & (1 << i);  in adv7511_cec_adap_log_addr()
246 		if (is_valid && adv7511->cec_addr[i] == addr)  in adv7511_cec_adap_log_addr()
254 	adv7511->cec_addr[i] = addr;  in adv7511_cec_adap_log_addr()
255 	adv7511->cec_valid_addrs |= 1 << i;  in adv7511_cec_adap_log_addr()
260 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_adap_log_addr()
264 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_adap_log_addr()
270 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_adap_log_addr()
274 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_adap_log_addr()
280 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_adap_log_addr()
284 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_adap_log_addr()
295 	struct adv7511 *adv7511 = cec_get_drvdata(adap);  in adv7511_cec_adap_transmit()  local
296 	unsigned int offset = adv7511->reg_cec_offset;  in adv7511_cec_adap_transmit()
305 	regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_adap_transmit()
310 	regmap_update_bits(adv7511->regmap, ADV7511_REG_INT(1), 0x38, 0x38);  in adv7511_cec_adap_transmit()
314 		regmap_write(adv7511->regmap_cec,  in adv7511_cec_adap_transmit()
319 	regmap_write(adv7511->regmap_cec,  in adv7511_cec_adap_transmit()
322 	regmap_write(adv7511->regmap_cec,  in adv7511_cec_adap_transmit()
333 static int adv7511_cec_parse_dt(struct device *dev, struct adv7511 *adv7511)  in adv7511_cec_parse_dt()  argument
335 	adv7511->cec_clk = devm_clk_get(dev, "cec");  in adv7511_cec_parse_dt()
336 	if (IS_ERR(adv7511->cec_clk)) {  in adv7511_cec_parse_dt()
337 		int ret = PTR_ERR(adv7511->cec_clk);  in adv7511_cec_parse_dt()
339 		adv7511->cec_clk = NULL;  in adv7511_cec_parse_dt()
342 	clk_prepare_enable(adv7511->cec_clk);  in adv7511_cec_parse_dt()
343 	adv7511->cec_clk_freq = clk_get_rate(adv7511->cec_clk);  in adv7511_cec_parse_dt()
347 int adv7511_cec_init(struct device *dev, struct adv7511 *adv7511)  in adv7511_cec_init()  argument
349 	unsigned int offset = adv7511->reg_cec_offset;  in adv7511_cec_init()
350 	int ret = adv7511_cec_parse_dt(dev, adv7511);  in adv7511_cec_init()
355 	adv7511->cec_adap = cec_allocate_adapter(&adv7511_cec_adap_ops,  in adv7511_cec_init()
356 		adv7511, dev_name(dev), CEC_CAP_DEFAULTS, ADV7511_MAX_ADDRS);  in adv7511_cec_init()
357 	if (IS_ERR(adv7511->cec_adap)) {  in adv7511_cec_init()
358 		ret = PTR_ERR(adv7511->cec_adap);  in adv7511_cec_init()
362 	regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL, 0);  in adv7511_cec_init()
364 	regmap_write(adv7511->regmap_cec,  in adv7511_cec_init()
366 	regmap_write(adv7511->regmap_cec,  in adv7511_cec_init()
370 	regmap_write(adv7511->regmap_cec,  in adv7511_cec_init()
373 	regmap_write(adv7511->regmap_cec,  in adv7511_cec_init()
375 		     ((adv7511->cec_clk_freq / 750000) - 1) << 2);  in adv7511_cec_init()
377 	ret = cec_register_adapter(adv7511->cec_adap, dev);  in adv7511_cec_init()
383 	cec_delete_adapter(adv7511->cec_adap);  in adv7511_cec_init()
384 	adv7511->cec_adap = NULL;  in adv7511_cec_init()
389 	regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL,  in adv7511_cec_init()