119 #define pch_dbg(adap, fmt, arg...)  \  argument
120 	dev_dbg(adap->pch_adapter.dev.parent, "%s :" fmt, __func__, ##arg)
122 #define pch_err(adap, fmt, arg...)  \  argument
123 	dev_err(adap->pch_adapter.dev.parent, "%s :" fmt, __func__, ##arg)
215 static void pch_i2c_init(struct i2c_algo_pch_data *adap)  in pch_i2c_init()  argument
217 	void __iomem *p = adap->pch_base_address;  in pch_i2c_init()
230 	pch_setbit(adap->pch_base_address, PCH_I2CCTL, PCH_I2CCTL_I2CMEN);  in pch_i2c_init()
238 		pch_dbg(adap, "Fast mode enabled\n");  in pch_i2c_init()
254 	pch_dbg(adap,  in pch_i2c_init()
266 static s32 pch_i2c_wait_for_bus_idle(struct i2c_algo_pch_data *adap,  in pch_i2c_wait_for_bus_idle()  argument
269 	void __iomem *p = adap->pch_base_address;  in pch_i2c_wait_for_bus_idle()
275 			pch_dbg(adap, "I2CSR = %x\n", ioread32(p + PCH_I2CSR));  in pch_i2c_wait_for_bus_idle()
276 			pch_err(adap, "%s: Timeout Error.return%d\n",  in pch_i2c_wait_for_bus_idle()
278 			pch_i2c_init(adap);  in pch_i2c_wait_for_bus_idle()
302 static void pch_i2c_start(struct i2c_algo_pch_data *adap)  in pch_i2c_start()  argument
304 	void __iomem *p = adap->pch_base_address;  in pch_i2c_start()
305 	pch_dbg(adap, "I2CCTL = %x\n", ioread32(p + PCH_I2CCTL));  in pch_i2c_start()
306 	pch_setbit(adap->pch_base_address, PCH_I2CCTL, PCH_START);  in pch_i2c_start()
313 static void pch_i2c_stop(struct i2c_algo_pch_data *adap)  in pch_i2c_stop()  argument
315 	void __iomem *p = adap->pch_base_address;  in pch_i2c_stop()
316 	pch_dbg(adap, "I2CCTL = %x\n", ioread32(p + PCH_I2CCTL));  in pch_i2c_stop()
318 	pch_clrbit(adap->pch_base_address, PCH_I2CCTL, PCH_START);  in pch_i2c_stop()
321 static int pch_i2c_wait_for_check_xfer(struct i2c_algo_pch_data *adap)  in pch_i2c_wait_for_check_xfer()  argument
324 	void __iomem *p = adap->pch_base_address;  in pch_i2c_wait_for_check_xfer()
327 			(adap->pch_event_flag != 0), msecs_to_jiffies(1000));  in pch_i2c_wait_for_check_xfer()
329 		pch_err(adap, "%s:wait-event timeout\n", __func__);  in pch_i2c_wait_for_check_xfer()
330 		adap->pch_event_flag = 0;  in pch_i2c_wait_for_check_xfer()
331 		pch_i2c_stop(adap);  in pch_i2c_wait_for_check_xfer()
332 		pch_i2c_init(adap);  in pch_i2c_wait_for_check_xfer()
336 	if (adap->pch_event_flag & I2C_ERROR_MASK) {  in pch_i2c_wait_for_check_xfer()
337 		pch_err(adap, "Lost Arbitration\n");  in pch_i2c_wait_for_check_xfer()
338 		adap->pch_event_flag = 0;  in pch_i2c_wait_for_check_xfer()
339 		pch_clrbit(adap->pch_base_address, PCH_I2CSR, I2CMAL_BIT);  in pch_i2c_wait_for_check_xfer()
340 		pch_clrbit(adap->pch_base_address, PCH_I2CSR, I2CMIF_BIT);  in pch_i2c_wait_for_check_xfer()
341 		pch_i2c_init(adap);  in pch_i2c_wait_for_check_xfer()
345 	adap->pch_event_flag = 0;  in pch_i2c_wait_for_check_xfer()
348 		pch_dbg(adap, "Receive NACK for slave address setting\n");  in pch_i2c_wait_for_check_xfer()
359 static void pch_i2c_repstart(struct i2c_algo_pch_data *adap)  in pch_i2c_repstart()  argument
361 	void __iomem *p = adap->pch_base_address;  in pch_i2c_repstart()
362 	pch_dbg(adap, "I2CCTL = %x\n", ioread32(p + PCH_I2CCTL));  in pch_i2c_repstart()
363 	pch_setbit(adap->pch_base_address, PCH_I2CCTL, PCH_REPSTART);  in pch_i2c_repstart()
378 	struct i2c_algo_pch_data *adap = i2c_adap->algo_data;  in pch_i2c_writebytes()  local
386 	void __iomem *p = adap->pch_base_address;  in pch_i2c_writebytes()
393 	pch_setbit(adap->pch_base_address, PCH_I2CCTL, I2C_TX_MODE);  in pch_i2c_writebytes()
395 	pch_dbg(adap, "I2CCTL = %x msgs->len = %d\n", ioread32(p + PCH_I2CCTL),  in pch_i2c_writebytes()
399 		if (pch_i2c_wait_for_bus_idle(adap, BUS_IDLE_TIMEOUT) == -ETIME)  in pch_i2c_writebytes()
407 			pch_i2c_start(adap);  in pch_i2c_writebytes()
409 		rtn = pch_i2c_wait_for_check_xfer(adap);  in pch_i2c_writebytes()
419 			pch_i2c_start(adap);  in pch_i2c_writebytes()
422 	rtn = pch_i2c_wait_for_check_xfer(adap);  in pch_i2c_writebytes()
429 		pch_dbg(adap, "writing %x to Data register\n", buf[wrcount]);  in pch_i2c_writebytes()
431 		rtn = pch_i2c_wait_for_check_xfer(adap);  in pch_i2c_writebytes()
435 		pch_clrbit(adap->pch_base_address, PCH_I2CSR, I2CMCF_BIT);  in pch_i2c_writebytes()
436 		pch_clrbit(adap->pch_base_address, PCH_I2CSR, I2CMIF_BIT);  in pch_i2c_writebytes()
441 		pch_i2c_stop(adap);  in pch_i2c_writebytes()
443 		pch_i2c_repstart(adap);  in pch_i2c_writebytes()
445 	pch_dbg(adap, "return=%d\n", wrcount);  in pch_i2c_writebytes()
454 static void pch_i2c_sendack(struct i2c_algo_pch_data *adap)  in pch_i2c_sendack()  argument
456 	void __iomem *p = adap->pch_base_address;  in pch_i2c_sendack()
457 	pch_dbg(adap, "I2CCTL = %x\n", ioread32(p + PCH_I2CCTL));  in pch_i2c_sendack()
458 	pch_clrbit(adap->pch_base_address, PCH_I2CCTL, PCH_ACK);  in pch_i2c_sendack()
465 static void pch_i2c_sendnack(struct i2c_algo_pch_data *adap)  in pch_i2c_sendnack()  argument
467 	void __iomem *p = adap->pch_base_address;  in pch_i2c_sendnack()
468 	pch_dbg(adap, "I2CCTL = %x\n", ioread32(p + PCH_I2CCTL));  in pch_i2c_sendnack()
469 	pch_setbit(adap->pch_base_address, PCH_I2CCTL, PCH_ACK);  in pch_i2c_sendnack()
478 static void pch_i2c_restart(struct i2c_algo_pch_data *adap)  in pch_i2c_restart()  argument
480 	void __iomem *p = adap->pch_base_address;  in pch_i2c_restart()
481 	pch_dbg(adap, "I2CCTL = %x\n", ioread32(p + PCH_I2CCTL));  in pch_i2c_restart()
482 	pch_setbit(adap->pch_base_address, PCH_I2CCTL, PCH_RESTART);  in pch_i2c_restart()
495 	struct i2c_algo_pch_data *adap = i2c_adap->algo_data;  in pch_i2c_readbytes()  local
503 	void __iomem *p = adap->pch_base_address;  in pch_i2c_readbytes()
511 	pch_clrbit(adap->pch_base_address, PCH_I2CCTL, I2C_TX_MODE);  in pch_i2c_readbytes()
514 		if (pch_i2c_wait_for_bus_idle(adap, BUS_IDLE_TIMEOUT) == -ETIME)  in pch_i2c_readbytes()
522 			pch_i2c_start(adap);  in pch_i2c_readbytes()
524 		rtn = pch_i2c_wait_for_check_xfer(adap);  in pch_i2c_readbytes()
531 		pch_i2c_restart(adap);  in pch_i2c_readbytes()
533 		rtn = pch_i2c_wait_for_check_xfer(adap);  in pch_i2c_readbytes()
547 		pch_i2c_start(adap);  in pch_i2c_readbytes()
549 	rtn = pch_i2c_wait_for_check_xfer(adap);  in pch_i2c_readbytes()
554 		pch_i2c_stop(adap);  in pch_i2c_readbytes()
561 		pch_i2c_sendack(adap);  in pch_i2c_readbytes()
570 			rtn = pch_i2c_wait_for_check_xfer(adap);  in pch_i2c_readbytes()
575 		pch_i2c_sendnack(adap);  in pch_i2c_readbytes()
582 		rtn = pch_i2c_wait_for_check_xfer(adap);  in pch_i2c_readbytes()
587 			pch_i2c_stop(adap);  in pch_i2c_readbytes()
589 			pch_i2c_repstart(adap);  in pch_i2c_readbytes()
602 static void pch_i2c_cb(struct i2c_algo_pch_data *adap)  in pch_i2c_cb()  argument
605 	void __iomem *p = adap->pch_base_address;  in pch_i2c_cb()
610 		adap->pch_event_flag |= I2CMAL_EVENT;  in pch_i2c_cb()
613 		adap->pch_event_flag |= I2CMCF_EVENT;  in pch_i2c_cb()
616 	pch_clrbit(adap->pch_base_address, PCH_I2CSR, sts);  in pch_i2c_cb()
618 	pch_dbg(adap, "PCH_I2CSR = %x\n", ioread32(p + PCH_I2CSR));  in pch_i2c_cb()
670 	struct i2c_algo_pch_data *adap = i2c_adap->algo_data;  in pch_i2c_xfer()  local
676 	if (adap->p_adapter_info->pch_i2c_suspended) {  in pch_i2c_xfer()
681 	pch_dbg(adap, "adap->p_adapter_info->pch_i2c_suspended is %d\n",  in pch_i2c_xfer()
682 		adap->p_adapter_info->pch_i2c_suspended);  in pch_i2c_xfer()
684 	adap->pch_i2c_xfer_in_progress = true;  in pch_i2c_xfer()
688 		pmsg->flags |= adap->pch_buff_mode_en;  in pch_i2c_xfer()
690 		pch_dbg(adap,  in pch_i2c_xfer()
702 	adap->pch_i2c_xfer_in_progress = false;	/* transfer completed */  in pch_i2c_xfer()
713 static u32 pch_i2c_func(struct i2c_adapter *adap)  in pch_i2c_func()  argument
727 static void pch_i2c_disbl_int(struct i2c_algo_pch_data *adap)  in pch_i2c_disbl_int()  argument
729 	void __iomem *p = adap->pch_base_address;  in pch_i2c_disbl_int()
731 	pch_clrbit(adap->pch_base_address, PCH_I2CCTL, NORMAL_INTR_ENBL);  in pch_i2c_disbl_int()