Lines Matching +full:scl +full:- +full:output +full:- +full:only
1 // SPDX-License-Identifier: GPL-2.0-or-later
7 * Copyright (C) 2004 - 2007 Texas Instruments.
30 #include <linux/platform_data/i2c-omap.h>
72 /* only on OMAP4430 */
133 #define OMAP_I2C_CON_TRX (1 << 9) /* TX/RX mode (master only) */
135 #define OMAP_I2C_CON_RM (1 << 2) /* Repeat mode (master only) */
136 #define OMAP_I2C_CON_STP (1 << 1) /* Stop cond (master only) */
139 /* I2C SCL time value when Master */
149 #define OMAP_I2C_SYSTEST_SCL_I_FUNC (1 << 8) /* SCL line input value */
150 #define OMAP_I2C_SYSTEST_SCL_O_FUNC (1 << 7) /* SCL line output value */
152 #define OMAP_I2C_SYSTEST_SDA_O_FUNC (1 << 5) /* SDA line output value */
153 /* SDA/SCL IO mode */
154 #define OMAP_I2C_SYSTEST_SCL_I (1 << 3) /* SCL line sense in */
155 #define OMAP_I2C_SYSTEST_SCL_O (1 << 2) /* SCL line drive out */
203 unsigned bb_valid:1; /* true when BB-bit reflects
268 writew_relaxed(val, omap->base + in omap_i2c_write_reg()
269 (omap->regs[reg] << omap->reg_shift)); in omap_i2c_write_reg()
274 return readw_relaxed(omap->base + in omap_i2c_read_reg()
275 (omap->regs[reg] << omap->reg_shift)); in omap_i2c_read_reg()
284 omap_i2c_write_reg(omap, OMAP_I2C_PSC_REG, omap->pscstate); in __omap_i2c_init()
286 /* SCL low and high time values */ in __omap_i2c_init()
287 omap_i2c_write_reg(omap, OMAP_I2C_SCLL_REG, omap->scllstate); in __omap_i2c_init()
288 omap_i2c_write_reg(omap, OMAP_I2C_SCLH_REG, omap->sclhstate); in __omap_i2c_init()
289 if (omap->rev >= OMAP_I2C_REV_ON_3430_3530) in __omap_i2c_init()
290 omap_i2c_write_reg(omap, OMAP_I2C_WE_REG, omap->westate); in __omap_i2c_init()
305 if (omap->iestate) in __omap_i2c_init()
306 omap_i2c_write_reg(omap, OMAP_I2C_IE_REG, omap->iestate); in __omap_i2c_init()
314 if (omap->rev >= OMAP_I2C_OMAP1_REV_2) { in omap_i2c_reset()
330 dev_warn(omap->dev, "timeout waiting " in omap_i2c_reset()
332 return -ETIMEDOUT; in omap_i2c_reset()
340 if (omap->rev > OMAP_I2C_REV_ON_3430_3530) { in omap_i2c_reset()
341 /* Schedule I2C-bus monitoring on the next transfer */ in omap_i2c_reset()
342 omap->bb_valid = 0; in omap_i2c_reset()
358 if (omap->rev >= OMAP_I2C_REV_ON_3430_3530) { in omap_i2c_init()
364 omap->westate = OMAP_I2C_WE_ALL; in omap_i2c_init()
367 if (omap->flags & OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK) { in omap_i2c_init()
374 fclk = clk_get(omap->dev, "fck"); in omap_i2c_init()
377 dev_err(omap->dev, "could not get fck: %i\n", error); in omap_i2c_init()
386 * between 7 - 12 MHz. The XOR input clock is typically in omap_i2c_init()
398 if (!(omap->flags & OMAP_I2C_FLAG_SIMPLE_CLOCK)) { in omap_i2c_init()
406 if (omap->speed > 400 || in omap_i2c_init()
407 omap->flags & OMAP_I2C_FLAG_FORCE_19200_INT_CLK) in omap_i2c_init()
409 else if (omap->speed > 100) in omap_i2c_init()
413 fclk = clk_get(omap->dev, "fck"); in omap_i2c_init()
416 dev_err(omap->dev, "could not get fck: %i\n", error); in omap_i2c_init()
425 psc = psc - 1; in omap_i2c_init()
428 if (omap->speed > 400) { in omap_i2c_init()
429 unsigned long scl; in omap_i2c_init() local
432 scl = internal_clk / 400; in omap_i2c_init()
433 fsscll = scl - (scl / 3) - 7; in omap_i2c_init()
434 fssclh = (scl / 3) - 5; in omap_i2c_init()
437 scl = fclk_rate / omap->speed; in omap_i2c_init()
438 hsscll = scl - (scl / 3) - 7; in omap_i2c_init()
439 hssclh = (scl / 3) - 5; in omap_i2c_init()
440 } else if (omap->speed > 100) { in omap_i2c_init()
441 unsigned long scl; in omap_i2c_init() local
444 scl = internal_clk / omap->speed; in omap_i2c_init()
445 fsscll = scl - (scl / 3) - 7; in omap_i2c_init()
446 fssclh = (scl / 3) - 5; in omap_i2c_init()
449 fsscll = internal_clk / (omap->speed * 2) - 7; in omap_i2c_init()
450 fssclh = internal_clk / (omap->speed * 2) - 5; in omap_i2c_init()
459 scll = fclk_rate / (omap->speed * 2) - 7 + psc; in omap_i2c_init()
460 sclh = fclk_rate / (omap->speed * 2) - 7 + psc; in omap_i2c_init()
463 omap->iestate = (OMAP_I2C_IE_XRDY | OMAP_I2C_IE_RRDY | in omap_i2c_init()
465 OMAP_I2C_IE_AL) | ((omap->fifo_size) ? in omap_i2c_init()
468 omap->pscstate = psc; in omap_i2c_init()
469 omap->scllstate = scll; in omap_i2c_init()
470 omap->sclhstate = sclh; in omap_i2c_init()
472 if (omap->rev <= OMAP_I2C_REV_ON_3430_3530) { in omap_i2c_init()
474 omap->bb_valid = 1; in omap_i2c_init()
483 * Try bus recovery, but only if SDA is actually low.
494 return -EBUSY; /* recovery would not fix SCL */ in omap_i2c_recover_bus()
495 return i2c_recover_bus(&omap->adapter); in omap_i2c_recover_bus()
516 * Wait while BB-bit doesn't reflect the I2C bus state
518 * In a multimaster environment, after IP software reset, BB-bit value doesn't
519 * correspond to the current bus state. It may happen what BB-bit will be 0,
521 * Here are BB-bit values after reset:
522 * SDA SCL BB NOTES
527 * Later, if IP detect SDA=0 and SCL=1 (ACK) or SDA 1->0 while SCL=1 (START)
528 * combinations on the bus, it set BB-bit to 1.
529 * If IP detect SDA 0->1 while SCL=1 (STOP) combination on the bus,
530 * it set BB-bit to 0 and BF to 1.
537 * 2. Any transfer started when BB=0 and SCL=0 results in IP
550 if (omap->bb_valid) in omap_i2c_wait_for_bb_valid()
559 * state. BB-bit value is valid. in omap_i2c_wait_for_bb_valid()
578 * SDA and SCL lines was high for 10 ms without bus in omap_i2c_wait_for_bb_valid()
580 * BB-bit value is valid. in omap_i2c_wait_for_bb_valid()
590 * SDA or SCL were low for the entire timeout without in omap_i2c_wait_for_bb_valid()
594 dev_warn(omap->dev, "timeout waiting for bus ready\n"); in omap_i2c_wait_for_bb_valid()
601 omap->bb_valid = 1; in omap_i2c_wait_for_bb_valid()
609 if (omap->flags & OMAP_I2C_FLAG_NO_FIFO) in omap_i2c_resize_fifo()
619 omap->threshold = clamp(size, (u8) 1, omap->fifo_size); in omap_i2c_resize_fifo()
626 buf |= ((omap->threshold - 1) << 8) | OMAP_I2C_BUF_RXFIF_CLR; in omap_i2c_resize_fifo()
630 buf |= (omap->threshold - 1) | OMAP_I2C_BUF_TXFIF_CLR; in omap_i2c_resize_fifo()
635 if (omap->rev < OMAP_I2C_REV_ON_3630) in omap_i2c_resize_fifo()
636 omap->b_hw = 1; /* Enable hardware fixes */ in omap_i2c_resize_fifo()
639 if (omap->set_mpu_wkup_lat != NULL) in omap_i2c_resize_fifo()
640 omap->latency = (1000000 * omap->threshold) / in omap_i2c_resize_fifo()
641 (1000 * omap->speed / 8); in omap_i2c_resize_fifo()
667 dev_dbg(omap->dev, "addr: 0x%04x, len: %d, flags: 0x%x, stop: %d\n", in omap_i2c_xfer_msg()
668 msg->addr, msg->len, msg->flags, stop); in omap_i2c_xfer_msg()
670 omap->receiver = !!(msg->flags & I2C_M_RD); in omap_i2c_xfer_msg()
671 omap_i2c_resize_fifo(omap, msg->len, omap->receiver); in omap_i2c_xfer_msg()
673 omap_i2c_write_reg(omap, OMAP_I2C_SA_REG, msg->addr); in omap_i2c_xfer_msg()
676 omap->buf = msg->buf; in omap_i2c_xfer_msg()
677 omap->buf_len = msg->len; in omap_i2c_xfer_msg()
679 /* make sure writes to omap->buf_len are ordered */ in omap_i2c_xfer_msg()
682 omap_i2c_write_reg(omap, OMAP_I2C_CNT_REG, omap->buf_len); in omap_i2c_xfer_msg()
690 reinit_completion(&omap->cmd_complete); in omap_i2c_xfer_msg()
691 omap->cmd_err = 0; in omap_i2c_xfer_msg()
696 if (omap->speed > 400) in omap_i2c_xfer_msg()
699 if (msg->flags & I2C_M_STOP) in omap_i2c_xfer_msg()
701 if (msg->flags & I2C_M_TEN) in omap_i2c_xfer_msg()
703 if (!(msg->flags & I2C_M_RD)) in omap_i2c_xfer_msg()
706 if (!omap->b_hw && stop) in omap_i2c_xfer_msg()
718 if (omap->b_hw && stop) { in omap_i2c_xfer_msg()
726 dev_err(omap->dev, "controller timed out " in omap_i2c_xfer_msg()
728 return -ETIMEDOUT; in omap_i2c_xfer_msg()
743 timeout = wait_for_completion_timeout(&omap->cmd_complete, in omap_i2c_xfer_msg()
749 } while (ret == -EAGAIN); in omap_i2c_xfer_msg()
755 dev_err(omap->dev, "controller timed out\n"); in omap_i2c_xfer_msg()
758 return -ETIMEDOUT; in omap_i2c_xfer_msg()
761 if (likely(!omap->cmd_err)) in omap_i2c_xfer_msg()
765 if (omap->cmd_err & (OMAP_I2C_STAT_ROVR | OMAP_I2C_STAT_XUDF)) { in omap_i2c_xfer_msg()
768 return -EIO; in omap_i2c_xfer_msg()
771 if (omap->cmd_err & OMAP_I2C_STAT_AL) in omap_i2c_xfer_msg()
772 return -EAGAIN; in omap_i2c_xfer_msg()
774 if (omap->cmd_err & OMAP_I2C_STAT_NACK) { in omap_i2c_xfer_msg()
775 if (msg->flags & I2C_M_IGNORE_NAK) in omap_i2c_xfer_msg()
781 return -EREMOTEIO; in omap_i2c_xfer_msg()
783 return -EIO; in omap_i2c_xfer_msg()
799 r = pm_runtime_get_sync(omap->dev); in omap_i2c_xfer_common()
811 if (omap->set_mpu_wkup_lat != NULL) in omap_i2c_xfer_common()
812 omap->set_mpu_wkup_lat(omap->dev, omap->latency); in omap_i2c_xfer_common()
815 r = omap_i2c_xfer_msg(adap, &msgs[i], (i == (num - 1)), in omap_i2c_xfer_common()
826 if (omap->set_mpu_wkup_lat != NULL) in omap_i2c_xfer_common()
827 omap->set_mpu_wkup_lat(omap->dev, -1); in omap_i2c_xfer_common()
830 pm_runtime_mark_last_busy(omap->dev); in omap_i2c_xfer_common()
831 pm_runtime_put_autosuspend(omap->dev); in omap_i2c_xfer_common()
857 omap->cmd_err |= err; in omap_i2c_complete_cmd()
858 complete(&omap->cmd_complete); in omap_i2c_complete_cmd()
888 dev_dbg(omap->dev, "RDR when bus is busy.\n"); in i2c_omap_errata_i207()
895 /* rev1 devices are apparently only on some 15xx */
904 if (pm_runtime_suspended(omap->dev)) in omap_i2c_omap1_isr()
912 dev_err(omap->dev, "Arbitration lost\n"); in omap_i2c_omap1_isr()
923 if (omap->buf_len) { in omap_i2c_omap1_isr()
925 *omap->buf++ = w; in omap_i2c_omap1_isr()
926 omap->buf_len--; in omap_i2c_omap1_isr()
927 if (omap->buf_len) { in omap_i2c_omap1_isr()
928 *omap->buf++ = w >> 8; in omap_i2c_omap1_isr()
929 omap->buf_len--; in omap_i2c_omap1_isr()
932 dev_err(omap->dev, "RRDY IRQ while no data requested\n"); in omap_i2c_omap1_isr()
935 if (omap->buf_len) { in omap_i2c_omap1_isr()
936 w = *omap->buf++; in omap_i2c_omap1_isr()
937 omap->buf_len--; in omap_i2c_omap1_isr()
938 if (omap->buf_len) { in omap_i2c_omap1_isr()
939 w |= *omap->buf++ << 8; in omap_i2c_omap1_isr()
940 omap->buf_len--; in omap_i2c_omap1_isr()
944 dev_err(omap->dev, "XRDY IRQ while no data to send\n"); in omap_i2c_omap1_isr()
975 omap->cmd_err |= OMAP_I2C_STAT_NACK; in errata_omap3_i462()
980 dev_err(omap->dev, "Arbitration lost\n"); in errata_omap3_i462()
981 omap->cmd_err |= OMAP_I2C_STAT_AL; in errata_omap3_i462()
985 return -EIO; in errata_omap3_i462()
989 } while (--timeout); in errata_omap3_i462()
992 dev_err(omap->dev, "timeout waiting on XUDF bit\n"); in errata_omap3_i462()
1004 while (num_bytes--) { in omap_i2c_receive_data()
1006 *omap->buf++ = w; in omap_i2c_receive_data()
1007 omap->buf_len--; in omap_i2c_receive_data()
1013 if (omap->flags & OMAP_I2C_FLAG_16BIT_DATA_REG) { in omap_i2c_receive_data()
1014 *omap->buf++ = w >> 8; in omap_i2c_receive_data()
1015 omap->buf_len--; in omap_i2c_receive_data()
1025 while (num_bytes--) { in omap_i2c_transmit_data()
1026 w = *omap->buf++; in omap_i2c_transmit_data()
1027 omap->buf_len--; in omap_i2c_transmit_data()
1033 if (omap->flags & OMAP_I2C_FLAG_16BIT_DATA_REG) { in omap_i2c_transmit_data()
1034 w |= *omap->buf++ << 8; in omap_i2c_transmit_data()
1035 omap->buf_len--; in omap_i2c_transmit_data()
1038 if (omap->errata & I2C_OMAP_ERRATA_I462) { in omap_i2c_transmit_data()
1064 if (omap->receiver) in omap_i2c_xfer_data()
1071 err = -EAGAIN; in omap_i2c_xfer_data()
1075 dev_dbg(omap->dev, "IRQ (ISR = 0x%04x)\n", stat); in omap_i2c_xfer_data()
1077 dev_warn(omap->dev, "Too much work in one IRQ\n"); in omap_i2c_xfer_data()
1082 omap->cmd_err |= OMAP_I2C_STAT_NACK; in omap_i2c_xfer_data()
1086 err = -EAGAIN; in omap_i2c_xfer_data()
1092 dev_err(omap->dev, "Arbitration lost\n"); in omap_i2c_xfer_data()
1116 if (omap->fifo_size) in omap_i2c_xfer_data()
1117 num_bytes = omap->buf_len; in omap_i2c_xfer_data()
1119 if (omap->errata & I2C_OMAP_ERRATA_I207) { in omap_i2c_xfer_data()
1133 if (omap->threshold) in omap_i2c_xfer_data()
1134 num_bytes = omap->threshold; in omap_i2c_xfer_data()
1145 if (omap->fifo_size) in omap_i2c_xfer_data()
1146 num_bytes = omap->buf_len; in omap_i2c_xfer_data()
1160 if (omap->threshold) in omap_i2c_xfer_data()
1161 num_bytes = omap->threshold; in omap_i2c_xfer_data()
1172 dev_err(omap->dev, "Receive overrun\n"); in omap_i2c_xfer_data()
1179 dev_err(omap->dev, "Transmit underflow\n"); in omap_i2c_xfer_data()
1196 if (ret != -EAGAIN) in omap_i2c_isr_thread()
1238 .compatible = "ti,omap4-i2c",
1242 .compatible = "ti,omap3-i2c",
1246 .compatible = "ti,omap2430-i2c",
1250 .compatible = "ti,omap2420-i2c",
1309 /* select SDA/SCL IO mode */ in omap_i2c_prepare_recovery()
1311 /* set SCL to high-impedance state (reset value is 0) */ in omap_i2c_prepare_recovery()
1313 /* set SDA to high-impedance state (reset value is 0) */ in omap_i2c_prepare_recovery()
1347 dev_get_platdata(&pdev->dev); in omap_i2c_probe()
1348 struct device_node *node = pdev->dev.of_node; in omap_i2c_probe()
1359 omap = devm_kzalloc(&pdev->dev, sizeof(struct omap_i2c_dev), GFP_KERNEL); in omap_i2c_probe()
1361 return -ENOMEM; in omap_i2c_probe()
1363 omap->base = devm_platform_ioremap_resource(pdev, 0); in omap_i2c_probe()
1364 if (IS_ERR(omap->base)) in omap_i2c_probe()
1365 return PTR_ERR(omap->base); in omap_i2c_probe()
1367 match = of_match_device(of_match_ptr(omap_i2c_of_match), &pdev->dev); in omap_i2c_probe()
1371 pdata = match->data; in omap_i2c_probe()
1372 omap->flags = pdata->flags; in omap_i2c_probe()
1374 of_property_read_u32(node, "clock-frequency", &freq); in omap_i2c_probe()
1376 omap->speed = freq / 1000; in omap_i2c_probe()
1378 omap->speed = pdata->clkrate; in omap_i2c_probe()
1379 omap->flags = pdata->flags; in omap_i2c_probe()
1380 omap->set_mpu_wkup_lat = pdata->set_mpu_wkup_lat; in omap_i2c_probe()
1383 omap->dev = &pdev->dev; in omap_i2c_probe()
1384 omap->irq = irq; in omap_i2c_probe()
1387 init_completion(&omap->cmd_complete); in omap_i2c_probe()
1389 omap->reg_shift = (omap->flags >> OMAP_I2C_FLAG_BUS_SHIFT__SHIFT) & 3; in omap_i2c_probe()
1391 pm_runtime_enable(omap->dev); in omap_i2c_probe()
1392 pm_runtime_set_autosuspend_delay(omap->dev, OMAP_I2C_PM_TIMEOUT); in omap_i2c_probe()
1393 pm_runtime_use_autosuspend(omap->dev); in omap_i2c_probe()
1395 r = pm_runtime_resume_and_get(omap->dev); in omap_i2c_probe()
1400 * Read the Rev hi bit-[15:14] ie scheme this is 1 indicates ver2. in omap_i2c_probe()
1405 rev = readw_relaxed(omap->base + 0x04); in omap_i2c_probe()
1407 omap->scheme = OMAP_I2C_SCHEME(rev); in omap_i2c_probe()
1408 switch (omap->scheme) { in omap_i2c_probe()
1410 omap->regs = (u8 *)reg_map_ip_v1; in omap_i2c_probe()
1411 omap->rev = omap_i2c_read_reg(omap, OMAP_I2C_REV_REG); in omap_i2c_probe()
1412 minor = OMAP_I2C_REV_SCHEME_0_MAJOR(omap->rev); in omap_i2c_probe()
1413 major = OMAP_I2C_REV_SCHEME_0_MAJOR(omap->rev); in omap_i2c_probe()
1417 omap->regs = (u8 *)reg_map_ip_v2; in omap_i2c_probe()
1422 omap->rev = rev; in omap_i2c_probe()
1425 omap->errata = 0; in omap_i2c_probe()
1427 if (omap->rev >= OMAP_I2C_REV_ON_2430 && in omap_i2c_probe()
1428 omap->rev < OMAP_I2C_REV_ON_4430_PLUS) in omap_i2c_probe()
1429 omap->errata |= I2C_OMAP_ERRATA_I207; in omap_i2c_probe()
1431 if (omap->rev <= OMAP_I2C_REV_ON_3430_3530) in omap_i2c_probe()
1432 omap->errata |= I2C_OMAP_ERRATA_I462; in omap_i2c_probe()
1434 if (!(omap->flags & OMAP_I2C_FLAG_NO_FIFO)) { in omap_i2c_probe()
1437 /* Set up the fifo size - Get total size */ in omap_i2c_probe()
1439 omap->fifo_size = 0x8 << s; in omap_i2c_probe()
1447 omap->fifo_size = (omap->fifo_size / 2); in omap_i2c_probe()
1449 if (omap->rev < OMAP_I2C_REV_ON_3630) in omap_i2c_probe()
1450 omap->b_hw = 1; /* Enable hardware fixes */ in omap_i2c_probe()
1453 if (omap->set_mpu_wkup_lat != NULL) in omap_i2c_probe()
1454 omap->latency = (1000000 * omap->fifo_size) / in omap_i2c_probe()
1455 (1000 * omap->speed / 8); in omap_i2c_probe()
1461 if (omap->rev < OMAP_I2C_OMAP1_REV_2) in omap_i2c_probe()
1462 r = devm_request_irq(&pdev->dev, omap->irq, omap_i2c_omap1_isr, in omap_i2c_probe()
1463 IRQF_NO_SUSPEND, pdev->name, omap); in omap_i2c_probe()
1465 r = devm_request_threaded_irq(&pdev->dev, omap->irq, in omap_i2c_probe()
1468 pdev->name, omap); in omap_i2c_probe()
1471 dev_err(omap->dev, "failure requesting irq %i\n", omap->irq); in omap_i2c_probe()
1475 adap = &omap->adapter; in omap_i2c_probe()
1477 adap->owner = THIS_MODULE; in omap_i2c_probe()
1478 adap->class = I2C_CLASS_DEPRECATED; in omap_i2c_probe()
1479 strscpy(adap->name, "OMAP I2C adapter", sizeof(adap->name)); in omap_i2c_probe()
1480 adap->algo = &omap_i2c_algo; in omap_i2c_probe()
1481 adap->quirks = &omap_i2c_quirks; in omap_i2c_probe()
1482 adap->dev.parent = &pdev->dev; in omap_i2c_probe()
1483 adap->dev.of_node = pdev->dev.of_node; in omap_i2c_probe()
1484 adap->bus_recovery_info = &omap_i2c_bus_recovery_info; in omap_i2c_probe()
1487 adap->nr = pdev->id; in omap_i2c_probe()
1492 dev_info(omap->dev, "bus %d rev%d.%d at %d kHz\n", adap->nr, in omap_i2c_probe()
1493 major, minor, omap->speed); in omap_i2c_probe()
1495 pm_runtime_mark_last_busy(omap->dev); in omap_i2c_probe()
1496 pm_runtime_put_autosuspend(omap->dev); in omap_i2c_probe()
1502 pm_runtime_dont_use_autosuspend(omap->dev); in omap_i2c_probe()
1503 pm_runtime_put_sync(omap->dev); in omap_i2c_probe()
1505 pm_runtime_disable(&pdev->dev); in omap_i2c_probe()
1515 i2c_del_adapter(&omap->adapter); in omap_i2c_remove()
1517 ret = pm_runtime_get_sync(&pdev->dev); in omap_i2c_remove()
1519 dev_err(omap->dev, "Failed to resume hardware, skip disable\n"); in omap_i2c_remove()
1523 pm_runtime_dont_use_autosuspend(&pdev->dev); in omap_i2c_remove()
1524 pm_runtime_put_sync(&pdev->dev); in omap_i2c_remove()
1525 pm_runtime_disable(&pdev->dev); in omap_i2c_remove()
1532 omap->iestate = omap_i2c_read_reg(omap, OMAP_I2C_IE_REG); in omap_i2c_runtime_suspend()
1534 if (omap->scheme == OMAP_I2C_SCHEME_0) in omap_i2c_runtime_suspend()
1540 if (omap->rev < OMAP_I2C_OMAP1_REV_2) { in omap_i2c_runtime_suspend()
1543 omap_i2c_write_reg(omap, OMAP_I2C_STAT_REG, omap->iestate); in omap_i2c_runtime_suspend()
1560 if (!omap->regs) in omap_i2c_runtime_resume()