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>
73 /* only on OMAP4430 */
134 #define OMAP_I2C_CON_TRX (1 << 9) /* TX/RX mode (master only) */
136 #define OMAP_I2C_CON_RM (1 << 2) /* Repeat mode (master only) */
137 #define OMAP_I2C_CON_STP (1 << 1) /* Stop cond (master only) */
140 /* I2C SCL time value when Master */
150 #define OMAP_I2C_SYSTEST_SCL_I_FUNC (1 << 8) /* SCL line input value */
151 #define OMAP_I2C_SYSTEST_SCL_O_FUNC (1 << 7) /* SCL line output value */
153 #define OMAP_I2C_SYSTEST_SDA_O_FUNC (1 << 5) /* SDA line output value */
154 /* SDA/SCL IO mode */
155 #define OMAP_I2C_SYSTEST_SCL_I (1 << 3) /* SCL line sense in */
156 #define OMAP_I2C_SYSTEST_SCL_O (1 << 2) /* SCL line drive out */
204 unsigned bb_valid:1; /* true when BB-bit reflects
270 writew_relaxed(val, omap->base + in omap_i2c_write_reg()
271 (omap->regs[reg] << omap->reg_shift)); in omap_i2c_write_reg()
276 return readw_relaxed(omap->base + in omap_i2c_read_reg()
277 (omap->regs[reg] << omap->reg_shift)); in omap_i2c_read_reg()
286 omap_i2c_write_reg(omap, OMAP_I2C_PSC_REG, omap->pscstate); in __omap_i2c_init()
288 /* SCL low and high time values */ in __omap_i2c_init()
289 omap_i2c_write_reg(omap, OMAP_I2C_SCLL_REG, omap->scllstate); in __omap_i2c_init()
290 omap_i2c_write_reg(omap, OMAP_I2C_SCLH_REG, omap->sclhstate); in __omap_i2c_init()
291 if (omap->rev >= OMAP_I2C_REV_ON_3430_3530) in __omap_i2c_init()
292 omap_i2c_write_reg(omap, OMAP_I2C_WE_REG, omap->westate); in __omap_i2c_init()
307 if (omap->iestate) in __omap_i2c_init()
308 omap_i2c_write_reg(omap, OMAP_I2C_IE_REG, omap->iestate); in __omap_i2c_init()
316 if (omap->rev >= OMAP_I2C_OMAP1_REV_2) { in omap_i2c_reset()
332 dev_warn(omap->dev, "timeout waiting " in omap_i2c_reset()
334 return -ETIMEDOUT; in omap_i2c_reset()
342 if (omap->rev > OMAP_I2C_REV_ON_3430_3530) { in omap_i2c_reset()
343 /* Schedule I2C-bus monitoring on the next transfer */ in omap_i2c_reset()
344 omap->bb_valid = 0; in omap_i2c_reset()
360 if (omap->rev >= OMAP_I2C_REV_ON_3430_3530) { in omap_i2c_init()
366 omap->westate = OMAP_I2C_WE_ALL; in omap_i2c_init()
369 if (omap->flags & OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK) { in omap_i2c_init()
376 fclk = clk_get(omap->dev, "fck"); in omap_i2c_init()
379 dev_err(omap->dev, "could not get fck: %i\n", error); in omap_i2c_init()
388 * between 7 - 12 MHz. The XOR input clock is typically in omap_i2c_init()
400 if (!(omap->flags & OMAP_I2C_FLAG_SIMPLE_CLOCK)) { in omap_i2c_init()
408 if (omap->speed > 400 || in omap_i2c_init()
409 omap->flags & OMAP_I2C_FLAG_FORCE_19200_INT_CLK) in omap_i2c_init()
411 else if (omap->speed > 100) in omap_i2c_init()
415 fclk = clk_get(omap->dev, "fck"); in omap_i2c_init()
418 dev_err(omap->dev, "could not get fck: %i\n", error); in omap_i2c_init()
427 psc = psc - 1; in omap_i2c_init()
430 if (omap->speed > 400) { in omap_i2c_init()
431 unsigned long scl; in omap_i2c_init() local
434 scl = internal_clk / 400; in omap_i2c_init()
435 fsscll = scl - (scl / 3) - 7; in omap_i2c_init()
436 fssclh = (scl / 3) - 5; in omap_i2c_init()
439 scl = fclk_rate / omap->speed; in omap_i2c_init()
440 hsscll = scl - (scl / 3) - 7; in omap_i2c_init()
441 hssclh = (scl / 3) - 5; in omap_i2c_init()
442 } else if (omap->speed > 100) { in omap_i2c_init()
443 unsigned long scl; in omap_i2c_init() local
446 scl = internal_clk / omap->speed; in omap_i2c_init()
447 fsscll = scl - (scl / 3) - 7; in omap_i2c_init()
448 fssclh = (scl / 3) - 5; in omap_i2c_init()
451 fsscll = internal_clk / (omap->speed * 2) - 7; in omap_i2c_init()
452 fssclh = internal_clk / (omap->speed * 2) - 5; in omap_i2c_init()
461 scll = fclk_rate / (omap->speed * 2) - 7 + psc; in omap_i2c_init()
462 sclh = fclk_rate / (omap->speed * 2) - 7 + psc; in omap_i2c_init()
465 omap->iestate = (OMAP_I2C_IE_XRDY | OMAP_I2C_IE_RRDY | in omap_i2c_init()
467 OMAP_I2C_IE_AL) | ((omap->fifo_size) ? in omap_i2c_init()
470 omap->pscstate = psc; in omap_i2c_init()
471 omap->scllstate = scll; in omap_i2c_init()
472 omap->sclhstate = sclh; in omap_i2c_init()
474 if (omap->rev <= OMAP_I2C_REV_ON_3430_3530) { in omap_i2c_init()
476 omap->bb_valid = 1; in omap_i2c_init()
485 * Try bus recovery, but only if SDA is actually low.
496 return -EBUSY; /* recovery would not fix SCL */ in omap_i2c_recover_bus()
497 return i2c_recover_bus(&omap->adapter); in omap_i2c_recover_bus()
518 * Wait while BB-bit doesn't reflect the I2C bus state
520 * In a multimaster environment, after IP software reset, BB-bit value doesn't
521 * correspond to the current bus state. It may happen what BB-bit will be 0,
523 * Here are BB-bit values after reset:
524 * SDA SCL BB NOTES
529 * Later, if IP detect SDA=0 and SCL=1 (ACK) or SDA 1->0 while SCL=1 (START)
530 * combinations on the bus, it set BB-bit to 1.
531 * If IP detect SDA 0->1 while SCL=1 (STOP) combination on the bus,
532 * it set BB-bit to 0 and BF to 1.
539 * 2. Any transfer started when BB=0 and SCL=0 results in IP
552 if (omap->bb_valid) in omap_i2c_wait_for_bb_valid()
561 * state. BB-bit value is valid. in omap_i2c_wait_for_bb_valid()
580 * SDA and SCL lines was high for 10 ms without bus in omap_i2c_wait_for_bb_valid()
582 * BB-bit value is valid. in omap_i2c_wait_for_bb_valid()
592 * SDA or SCL were low for the entire timeout without in omap_i2c_wait_for_bb_valid()
596 dev_warn(omap->dev, "timeout waiting for bus ready\n"); in omap_i2c_wait_for_bb_valid()
603 omap->bb_valid = 1; in omap_i2c_wait_for_bb_valid()
611 if (omap->flags & OMAP_I2C_FLAG_NO_FIFO) in omap_i2c_resize_fifo()
621 omap->threshold = clamp(size, (u8) 1, omap->fifo_size); in omap_i2c_resize_fifo()
628 buf |= ((omap->threshold - 1) << 8) | OMAP_I2C_BUF_RXFIF_CLR; in omap_i2c_resize_fifo()
632 buf |= (omap->threshold - 1) | OMAP_I2C_BUF_TXFIF_CLR; in omap_i2c_resize_fifo()
637 if (omap->rev < OMAP_I2C_REV_ON_3630) in omap_i2c_resize_fifo()
638 omap->b_hw = 1; /* Enable hardware fixes */ in omap_i2c_resize_fifo()
641 if (omap->set_mpu_wkup_lat != NULL) in omap_i2c_resize_fifo()
642 omap->latency = (1000000 * omap->threshold) / in omap_i2c_resize_fifo()
643 (1000 * omap->speed / 8); in omap_i2c_resize_fifo()
669 dev_dbg(omap->dev, "addr: 0x%04x, len: %d, flags: 0x%x, stop: %d\n", in omap_i2c_xfer_msg()
670 msg->addr, msg->len, msg->flags, stop); in omap_i2c_xfer_msg()
672 omap->receiver = !!(msg->flags & I2C_M_RD); in omap_i2c_xfer_msg()
673 omap_i2c_resize_fifo(omap, msg->len, omap->receiver); in omap_i2c_xfer_msg()
675 omap_i2c_write_reg(omap, OMAP_I2C_SA_REG, msg->addr); in omap_i2c_xfer_msg()
678 omap->buf = msg->buf; in omap_i2c_xfer_msg()
679 omap->buf_len = msg->len; in omap_i2c_xfer_msg()
681 /* make sure writes to omap->buf_len are ordered */ in omap_i2c_xfer_msg()
684 omap_i2c_write_reg(omap, OMAP_I2C_CNT_REG, omap->buf_len); in omap_i2c_xfer_msg()
692 reinit_completion(&omap->cmd_complete); in omap_i2c_xfer_msg()
693 omap->cmd_err = 0; in omap_i2c_xfer_msg()
698 if (omap->speed > 400) in omap_i2c_xfer_msg()
701 if (msg->flags & I2C_M_STOP) in omap_i2c_xfer_msg()
703 if (msg->flags & I2C_M_TEN) in omap_i2c_xfer_msg()
705 if (!(msg->flags & I2C_M_RD)) in omap_i2c_xfer_msg()
708 if (!omap->b_hw && stop) in omap_i2c_xfer_msg()
720 if (omap->b_hw && stop) { in omap_i2c_xfer_msg()
728 dev_err(omap->dev, "controller timed out " in omap_i2c_xfer_msg()
730 return -ETIMEDOUT; in omap_i2c_xfer_msg()
745 time_left = wait_for_completion_timeout(&omap->cmd_complete, in omap_i2c_xfer_msg()
751 } while (ret == -EAGAIN); in omap_i2c_xfer_msg()
759 return -ETIMEDOUT; in omap_i2c_xfer_msg()
762 if (likely(!omap->cmd_err)) in omap_i2c_xfer_msg()
766 if (omap->cmd_err & (OMAP_I2C_STAT_ROVR | OMAP_I2C_STAT_XUDF)) { in omap_i2c_xfer_msg()
769 return -EIO; in omap_i2c_xfer_msg()
772 if (omap->cmd_err & OMAP_I2C_STAT_AL) in omap_i2c_xfer_msg()
773 return -EAGAIN; in omap_i2c_xfer_msg()
775 if (omap->cmd_err & OMAP_I2C_STAT_NACK) { in omap_i2c_xfer_msg()
776 if (msg->flags & I2C_M_IGNORE_NAK) in omap_i2c_xfer_msg()
782 return -EREMOTEIO; in omap_i2c_xfer_msg()
784 return -EIO; in omap_i2c_xfer_msg()
800 r = pm_runtime_get_sync(omap->dev); in omap_i2c_xfer_common()
812 if (omap->set_mpu_wkup_lat != NULL) in omap_i2c_xfer_common()
813 omap->set_mpu_wkup_lat(omap->dev, omap->latency); in omap_i2c_xfer_common()
816 r = omap_i2c_xfer_msg(adap, &msgs[i], (i == (num - 1)), in omap_i2c_xfer_common()
827 if (omap->set_mpu_wkup_lat != NULL) in omap_i2c_xfer_common()
828 omap->set_mpu_wkup_lat(omap->dev, -1); in omap_i2c_xfer_common()
831 pm_runtime_mark_last_busy(omap->dev); in omap_i2c_xfer_common()
832 pm_runtime_put_autosuspend(omap->dev); in omap_i2c_xfer_common()
858 omap->cmd_err |= err; in omap_i2c_complete_cmd()
859 complete(&omap->cmd_complete); in omap_i2c_complete_cmd()
889 dev_dbg(omap->dev, "RDR when bus is busy.\n"); in i2c_omap_errata_i207()
896 /* rev1 devices are apparently only on some 15xx */
905 if (pm_runtime_suspended(omap->dev)) in omap_i2c_omap1_isr()
913 dev_err(omap->dev, "Arbitration lost\n"); in omap_i2c_omap1_isr()
924 if (omap->buf_len) { in omap_i2c_omap1_isr()
926 *omap->buf++ = w; in omap_i2c_omap1_isr()
927 omap->buf_len--; in omap_i2c_omap1_isr()
928 if (omap->buf_len) { in omap_i2c_omap1_isr()
929 *omap->buf++ = w >> 8; in omap_i2c_omap1_isr()
930 omap->buf_len--; in omap_i2c_omap1_isr()
933 dev_err(omap->dev, "RRDY IRQ while no data requested\n"); in omap_i2c_omap1_isr()
936 if (omap->buf_len) { in omap_i2c_omap1_isr()
937 w = *omap->buf++; in omap_i2c_omap1_isr()
938 omap->buf_len--; in omap_i2c_omap1_isr()
939 if (omap->buf_len) { in omap_i2c_omap1_isr()
940 w |= *omap->buf++ << 8; in omap_i2c_omap1_isr()
941 omap->buf_len--; in omap_i2c_omap1_isr()
945 dev_err(omap->dev, "XRDY IRQ while no data to send\n"); in omap_i2c_omap1_isr()
976 omap->cmd_err |= OMAP_I2C_STAT_NACK; in errata_omap3_i462()
981 dev_err(omap->dev, "Arbitration lost\n"); in errata_omap3_i462()
982 omap->cmd_err |= OMAP_I2C_STAT_AL; in errata_omap3_i462()
986 return -EIO; in errata_omap3_i462()
990 } while (--timeout); in errata_omap3_i462()
993 dev_err(omap->dev, "timeout waiting on XUDF bit\n"); in errata_omap3_i462()
1005 while (num_bytes--) { in omap_i2c_receive_data()
1007 *omap->buf++ = w; in omap_i2c_receive_data()
1008 omap->buf_len--; in omap_i2c_receive_data()
1014 if (omap->flags & OMAP_I2C_FLAG_16BIT_DATA_REG) { in omap_i2c_receive_data()
1015 *omap->buf++ = w >> 8; in omap_i2c_receive_data()
1016 omap->buf_len--; in omap_i2c_receive_data()
1026 while (num_bytes--) { in omap_i2c_transmit_data()
1027 w = *omap->buf++; in omap_i2c_transmit_data()
1028 omap->buf_len--; in omap_i2c_transmit_data()
1034 if (omap->flags & OMAP_I2C_FLAG_16BIT_DATA_REG) { in omap_i2c_transmit_data()
1035 w |= *omap->buf++ << 8; in omap_i2c_transmit_data()
1036 omap->buf_len--; in omap_i2c_transmit_data()
1039 if (omap->errata & I2C_OMAP_ERRATA_I462) { in omap_i2c_transmit_data()
1065 if (omap->receiver) in omap_i2c_xfer_data()
1072 err = -EAGAIN; in omap_i2c_xfer_data()
1076 dev_dbg(omap->dev, "IRQ (ISR = 0x%04x)\n", stat); in omap_i2c_xfer_data()
1078 dev_warn(omap->dev, "Too much work in one IRQ\n"); in omap_i2c_xfer_data()
1083 omap->cmd_err |= OMAP_I2C_STAT_NACK; in omap_i2c_xfer_data()
1087 err = -EAGAIN; in omap_i2c_xfer_data()
1093 dev_err(omap->dev, "Arbitration lost\n"); in omap_i2c_xfer_data()
1117 if (omap->fifo_size) in omap_i2c_xfer_data()
1118 num_bytes = omap->buf_len; in omap_i2c_xfer_data()
1120 if (omap->errata & I2C_OMAP_ERRATA_I207) { in omap_i2c_xfer_data()
1134 if (omap->threshold) in omap_i2c_xfer_data()
1135 num_bytes = omap->threshold; in omap_i2c_xfer_data()
1146 if (omap->fifo_size) in omap_i2c_xfer_data()
1147 num_bytes = omap->buf_len; in omap_i2c_xfer_data()
1161 if (omap->threshold) in omap_i2c_xfer_data()
1162 num_bytes = omap->threshold; in omap_i2c_xfer_data()
1173 dev_err(omap->dev, "Receive overrun\n"); in omap_i2c_xfer_data()
1180 dev_err(omap->dev, "Transmit underflow\n"); in omap_i2c_xfer_data()
1197 if (ret != -EAGAIN) in omap_i2c_isr_thread()
1239 .compatible = "ti,omap4-i2c",
1243 .compatible = "ti,omap3-i2c",
1247 .compatible = "ti,omap2430-i2c",
1251 .compatible = "ti,omap2420-i2c",
1310 /* select SDA/SCL IO mode */ in omap_i2c_prepare_recovery()
1312 /* set SCL to high-impedance state (reset value is 0) */ in omap_i2c_prepare_recovery()
1314 /* set SDA to high-impedance state (reset value is 0) */ in omap_i2c_prepare_recovery()
1348 dev_get_platdata(&pdev->dev); in omap_i2c_probe()
1349 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 if (pdev->dev.of_node) { in omap_i2c_probe()
1370 pdata = device_get_match_data(&pdev->dev); in omap_i2c_probe()
1371 omap->flags = pdata->flags; in omap_i2c_probe()
1373 of_property_read_u32(node, "clock-frequency", &freq); in omap_i2c_probe()
1375 omap->speed = freq / 1000; in omap_i2c_probe()
1377 omap->speed = pdata->clkrate; in omap_i2c_probe()
1378 omap->flags = pdata->flags; in omap_i2c_probe()
1379 omap->set_mpu_wkup_lat = pdata->set_mpu_wkup_lat; in omap_i2c_probe()
1382 omap->dev = &pdev->dev; in omap_i2c_probe()
1383 omap->irq = irq; in omap_i2c_probe()
1386 init_completion(&omap->cmd_complete); in omap_i2c_probe()
1388 omap->reg_shift = (omap->flags >> OMAP_I2C_FLAG_BUS_SHIFT__SHIFT) & 3; in omap_i2c_probe()
1390 pm_runtime_enable(omap->dev); in omap_i2c_probe()
1391 pm_runtime_set_autosuspend_delay(omap->dev, OMAP_I2C_PM_TIMEOUT); in omap_i2c_probe()
1392 pm_runtime_use_autosuspend(omap->dev); in omap_i2c_probe()
1394 r = pm_runtime_resume_and_get(omap->dev); in omap_i2c_probe()
1399 * Read the Rev hi bit-[15:14] ie scheme this is 1 indicates ver2. in omap_i2c_probe()
1404 rev = readw_relaxed(omap->base + 0x04); in omap_i2c_probe()
1406 omap->scheme = OMAP_I2C_SCHEME(rev); in omap_i2c_probe()
1407 switch (omap->scheme) { in omap_i2c_probe()
1409 omap->regs = (u8 *)reg_map_ip_v1; in omap_i2c_probe()
1410 omap->rev = omap_i2c_read_reg(omap, OMAP_I2C_REV_REG); in omap_i2c_probe()
1411 minor = OMAP_I2C_REV_SCHEME_0_MAJOR(omap->rev); in omap_i2c_probe()
1412 major = OMAP_I2C_REV_SCHEME_0_MAJOR(omap->rev); in omap_i2c_probe()
1416 omap->regs = (u8 *)reg_map_ip_v2; in omap_i2c_probe()
1421 omap->rev = rev; in omap_i2c_probe()
1424 omap->errata = 0; in omap_i2c_probe()
1426 if (omap->rev >= OMAP_I2C_REV_ON_2430 && in omap_i2c_probe()
1427 omap->rev < OMAP_I2C_REV_ON_4430_PLUS) in omap_i2c_probe()
1428 omap->errata |= I2C_OMAP_ERRATA_I207; in omap_i2c_probe()
1430 if (omap->rev <= OMAP_I2C_REV_ON_3430_3530) in omap_i2c_probe()
1431 omap->errata |= I2C_OMAP_ERRATA_I462; in omap_i2c_probe()
1433 if (!(omap->flags & OMAP_I2C_FLAG_NO_FIFO)) { in omap_i2c_probe()
1436 /* Set up the fifo size - Get total size */ in omap_i2c_probe()
1438 omap->fifo_size = 0x8 << s; in omap_i2c_probe()
1446 omap->fifo_size = (omap->fifo_size / 2); in omap_i2c_probe()
1448 if (omap->rev < OMAP_I2C_REV_ON_3630) in omap_i2c_probe()
1449 omap->b_hw = 1; /* Enable hardware fixes */ in omap_i2c_probe()
1452 if (omap->set_mpu_wkup_lat != NULL) in omap_i2c_probe()
1453 omap->latency = (1000000 * omap->fifo_size) / in omap_i2c_probe()
1454 (1000 * omap->speed / 8); in omap_i2c_probe()
1457 if (of_property_present(node, "mux-states")) { in omap_i2c_probe()
1460 mux_state = devm_mux_state_get(&pdev->dev, NULL); in omap_i2c_probe()
1463 dev_dbg(&pdev->dev, "failed to get I2C mux: %d\n", r); in omap_i2c_probe()
1466 omap->mux_state = mux_state; in omap_i2c_probe()
1467 r = mux_state_select(omap->mux_state); in omap_i2c_probe()
1469 dev_err(&pdev->dev, "failed to select I2C mux: %d\n", r); in omap_i2c_probe()
1477 if (omap->rev < OMAP_I2C_OMAP1_REV_2) in omap_i2c_probe()
1478 r = devm_request_irq(&pdev->dev, omap->irq, omap_i2c_omap1_isr, in omap_i2c_probe()
1479 IRQF_NO_SUSPEND, pdev->name, omap); in omap_i2c_probe()
1481 r = devm_request_threaded_irq(&pdev->dev, omap->irq, in omap_i2c_probe()
1484 pdev->name, omap); in omap_i2c_probe()
1487 dev_err(omap->dev, "failure requesting irq %i\n", omap->irq); in omap_i2c_probe()
1491 adap = &omap->adapter; in omap_i2c_probe()
1493 adap->owner = THIS_MODULE; in omap_i2c_probe()
1494 adap->class = I2C_CLASS_DEPRECATED; in omap_i2c_probe()
1495 strscpy(adap->name, "OMAP I2C adapter", sizeof(adap->name)); in omap_i2c_probe()
1496 adap->algo = &omap_i2c_algo; in omap_i2c_probe()
1497 adap->quirks = &omap_i2c_quirks; in omap_i2c_probe()
1498 adap->dev.parent = &pdev->dev; in omap_i2c_probe()
1499 adap->dev.of_node = pdev->dev.of_node; in omap_i2c_probe()
1500 adap->bus_recovery_info = &omap_i2c_bus_recovery_info; in omap_i2c_probe()
1503 adap->nr = pdev->id; in omap_i2c_probe()
1508 dev_info(omap->dev, "bus %d rev%d.%d at %d kHz\n", adap->nr, in omap_i2c_probe()
1509 major, minor, omap->speed); in omap_i2c_probe()
1511 pm_runtime_mark_last_busy(omap->dev); in omap_i2c_probe()
1512 pm_runtime_put_autosuspend(omap->dev); in omap_i2c_probe()
1518 pm_runtime_dont_use_autosuspend(omap->dev); in omap_i2c_probe()
1519 pm_runtime_put_sync(omap->dev); in omap_i2c_probe()
1521 pm_runtime_disable(&pdev->dev); in omap_i2c_probe()
1531 i2c_del_adapter(&omap->adapter); in omap_i2c_remove()
1533 if (omap->mux_state) in omap_i2c_remove()
1534 mux_state_deselect(omap->mux_state); in omap_i2c_remove()
1536 ret = pm_runtime_get_sync(&pdev->dev); in omap_i2c_remove()
1538 dev_err(omap->dev, "Failed to resume hardware, skip disable\n"); in omap_i2c_remove()
1542 pm_runtime_dont_use_autosuspend(&pdev->dev); in omap_i2c_remove()
1543 pm_runtime_put_sync(&pdev->dev); in omap_i2c_remove()
1544 pm_runtime_disable(&pdev->dev); in omap_i2c_remove()
1551 omap->iestate = omap_i2c_read_reg(omap, OMAP_I2C_IE_REG); in omap_i2c_runtime_suspend()
1553 if (omap->scheme == OMAP_I2C_SCHEME_0) in omap_i2c_runtime_suspend()
1559 if (omap->rev < OMAP_I2C_OMAP1_REV_2) { in omap_i2c_runtime_suspend()
1562 omap_i2c_write_reg(omap, OMAP_I2C_STAT_REG, omap->iestate); in omap_i2c_runtime_suspend()
1579 if (!omap->regs) in omap_i2c_runtime_resume()