3  * adv7511_cec.c - Analog Devices ADV7511/33 cec driver
17 #include "adv7511.h"
36 static void adv_cec_tx_raw_status(struct adv7511 *adv7511, u8 tx_raw_status)  in adv_cec_tx_raw_status()  argument
38 	unsigned int offset = adv7511->info->reg_cec_offset;  in adv_cec_tx_raw_status()
41 	if (regmap_read(adv7511->regmap_cec,  in adv_cec_tx_raw_status()
49 		drm_connector_hdmi_cec_transmit_attempt_done(adv7511->cec_connector,  in adv_cec_tx_raw_status()
65 		if (regmap_read(adv7511->regmap_cec,  in adv_cec_tx_raw_status()
77 		drm_connector_hdmi_cec_transmit_done(adv7511->cec_connector, status,  in adv_cec_tx_raw_status()
83 		drm_connector_hdmi_cec_transmit_attempt_done(adv7511->cec_connector,  in adv_cec_tx_raw_status()
89 static void adv7511_cec_rx(struct adv7511 *adv7511, int rx_buf)  in adv7511_cec_rx()  argument
91 	unsigned int offset = adv7511->info->reg_cec_offset;  in adv7511_cec_rx()
97 	if (regmap_read(adv7511->regmap_cec,  in adv7511_cec_rx()
110 		regmap_read(adv7511->regmap_cec,  in adv7511_cec_rx()
117 	regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_rx()
120 	regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_rx()
123 	drm_connector_hdmi_cec_received_msg(adv7511->cec_connector, &msg);  in adv7511_cec_rx()
126 int adv7511_cec_irq_process(struct adv7511 *adv7511, unsigned int irq1)  in adv7511_cec_irq_process()  argument
128 	unsigned int offset = adv7511->info->reg_cec_offset;  in adv7511_cec_irq_process()
141 		adv_cec_tx_raw_status(adv7511, irq1);  in adv7511_cec_irq_process()
148 	if (regmap_read(adv7511->regmap_cec,  in adv7511_cec_irq_process()
180 		adv7511_cec_rx(adv7511, rx_buf);  in adv7511_cec_irq_process()
188 	struct adv7511 *adv7511 = bridge_to_adv7511(bridge);  in adv7511_cec_enable()  local
189 	unsigned int offset = adv7511->info->reg_cec_offset;  in adv7511_cec_enable()
191 	if (adv7511->i2c_cec == NULL)  in adv7511_cec_enable()
194 	if (!adv7511->cec_enabled_adap && enable) {  in adv7511_cec_enable()
196 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_enable()
200 		regmap_write(adv7511->regmap_cec,  in adv7511_cec_enable()
202 		regmap_write(adv7511->regmap_cec,  in adv7511_cec_enable()
205 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_enable()
212 		regmap_update_bits(adv7511->regmap,  in adv7511_cec_enable()
215 	} else if (adv7511->cec_enabled_adap && !enable) {  in adv7511_cec_enable()
216 		regmap_update_bits(adv7511->regmap,  in adv7511_cec_enable()
219 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_enable()
223 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_enable()
226 		adv7511->cec_valid_addrs = 0;  in adv7511_cec_enable()
228 	adv7511->cec_enabled_adap = enable;  in adv7511_cec_enable()
234 	struct adv7511 *adv7511 = bridge_to_adv7511(bridge);  in adv7511_cec_log_addr()  local
235 	unsigned int offset = adv7511->info->reg_cec_offset;  in adv7511_cec_log_addr()
238 	if (!adv7511->cec_enabled_adap)  in adv7511_cec_log_addr()
242 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_log_addr()
245 		adv7511->cec_valid_addrs = 0;  in adv7511_cec_log_addr()
250 		bool is_valid = adv7511->cec_valid_addrs & (1 << i);  in adv7511_cec_log_addr()
254 		if (is_valid && adv7511->cec_addr[i] == addr)  in adv7511_cec_log_addr()
262 	adv7511->cec_addr[i] = addr;  in adv7511_cec_log_addr()
263 	adv7511->cec_valid_addrs |= 1 << i;  in adv7511_cec_log_addr()
268 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_log_addr()
272 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_log_addr()
278 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_log_addr()
282 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_log_addr()
288 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_log_addr()
292 		regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_log_addr()
303 	struct adv7511 *adv7511 = bridge_to_adv7511(bridge);  in adv7511_cec_transmit()  local
304 	unsigned int offset = adv7511->info->reg_cec_offset;  in adv7511_cec_transmit()
313 	regmap_update_bits(adv7511->regmap_cec,  in adv7511_cec_transmit()
318 	regmap_update_bits(adv7511->regmap, ADV7511_REG_INT(1), 0x38, 0x38);  in adv7511_cec_transmit()
322 		regmap_write(adv7511->regmap_cec,  in adv7511_cec_transmit()
327 	regmap_write(adv7511->regmap_cec,  in adv7511_cec_transmit()
330 	regmap_write(adv7511->regmap_cec,  in adv7511_cec_transmit()
335 static int adv7511_cec_parse_dt(struct device *dev, struct adv7511 *adv7511)  in adv7511_cec_parse_dt()  argument
337 	adv7511->cec_clk = devm_clk_get(dev, "cec");  in adv7511_cec_parse_dt()
338 	if (IS_ERR(adv7511->cec_clk)) {  in adv7511_cec_parse_dt()
339 		int ret = PTR_ERR(adv7511->cec_clk);  in adv7511_cec_parse_dt()
341 		adv7511->cec_clk = NULL;  in adv7511_cec_parse_dt()
344 	clk_prepare_enable(adv7511->cec_clk);  in adv7511_cec_parse_dt()
345 	adv7511->cec_clk_freq = clk_get_rate(adv7511->cec_clk);  in adv7511_cec_parse_dt()
352 	struct adv7511 *adv7511 = bridge_to_adv7511(bridge);  in adv7511_cec_init()  local
353 	struct device *dev = &adv7511->i2c_main->dev;  in adv7511_cec_init()
354 	unsigned int offset = adv7511->info->reg_cec_offset;  in adv7511_cec_init()
355 	int ret = adv7511_cec_parse_dt(dev, adv7511);  in adv7511_cec_init()
360 	adv7511->cec_connector = connector;  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()
380 	regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL,  in adv7511_cec_init()