Lines Matching refs:omap
273 static inline void omap_i2c_write_reg(struct omap_i2c_dev *omap, in omap_i2c_write_reg() argument
276 writew_relaxed(val, omap->base + in omap_i2c_write_reg()
277 (omap->regs[reg] << omap->reg_shift)); in omap_i2c_write_reg()
280 static inline u16 omap_i2c_read_reg(struct omap_i2c_dev *omap, int reg) in omap_i2c_read_reg() argument
282 return readw_relaxed(omap->base + in omap_i2c_read_reg()
283 (omap->regs[reg] << omap->reg_shift)); in omap_i2c_read_reg()
286 static void __omap_i2c_init(struct omap_i2c_dev *omap) in __omap_i2c_init() argument
289 omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, 0); in __omap_i2c_init()
292 omap_i2c_write_reg(omap, OMAP_I2C_PSC_REG, omap->pscstate); in __omap_i2c_init()
295 omap_i2c_write_reg(omap, OMAP_I2C_SCLL_REG, omap->scllstate); in __omap_i2c_init()
296 omap_i2c_write_reg(omap, OMAP_I2C_SCLH_REG, omap->sclhstate); in __omap_i2c_init()
297 if (omap->rev >= OMAP_I2C_REV_ON_3430_3530) in __omap_i2c_init()
298 omap_i2c_write_reg(omap, OMAP_I2C_WE_REG, omap->westate); in __omap_i2c_init()
301 omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, OMAP_I2C_CON_EN); in __omap_i2c_init()
313 if (omap->iestate) in __omap_i2c_init()
314 omap_i2c_write_reg(omap, OMAP_I2C_IE_REG, omap->iestate); in __omap_i2c_init()
317 static int omap_i2c_reset(struct omap_i2c_dev *omap) in omap_i2c_reset() argument
322 if (omap->rev >= OMAP_I2C_OMAP1_REV_2) { in omap_i2c_reset()
323 sysc = omap_i2c_read_reg(omap, OMAP_I2C_SYSC_REG); in omap_i2c_reset()
326 omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, in omap_i2c_reset()
327 omap_i2c_read_reg(omap, OMAP_I2C_CON_REG) & in omap_i2c_reset()
330 omap_i2c_write_reg(omap, OMAP_I2C_SYSC_REG, SYSC_SOFTRESET_MASK); in omap_i2c_reset()
334 omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, OMAP_I2C_CON_EN); in omap_i2c_reset()
335 while (!(omap_i2c_read_reg(omap, OMAP_I2C_SYSS_REG) & in omap_i2c_reset()
338 dev_warn(omap->dev, "timeout waiting " in omap_i2c_reset()
346 omap_i2c_write_reg(omap, OMAP_I2C_SYSC_REG, sysc); in omap_i2c_reset()
348 if (omap->rev > OMAP_I2C_REV_ON_3430_3530) { in omap_i2c_reset()
350 omap->bb_valid = 0; in omap_i2c_reset()
357 static int omap_i2c_init(struct omap_i2c_dev *omap) in omap_i2c_init() argument
365 if (omap->rev >= OMAP_I2C_REV_ON_3430_3530) { in omap_i2c_init()
371 omap->westate = OMAP_I2C_WE_ALL; in omap_i2c_init()
374 if (omap->flags & OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK) { in omap_i2c_init()
381 fclk = clk_get(omap->dev, "fck"); 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()
422 if (omap->speed > 400) { in omap_i2c_init()
431 scl = fclk_rate / omap->speed; in omap_i2c_init()
434 } else if (omap->speed > 100) { in omap_i2c_init()
438 scl = internal_clk / omap->speed; in omap_i2c_init()
443 fsscll = internal_clk / (omap->speed * 2) - 7; in omap_i2c_init()
444 fssclh = internal_clk / (omap->speed * 2) - 5; in omap_i2c_init()
453 scll = fclk_rate / (omap->speed * 2) - 7 + psc; in omap_i2c_init()
454 sclh = fclk_rate / (omap->speed * 2) - 7 + psc; in omap_i2c_init()
457 omap->iestate = (OMAP_I2C_IE_XRDY | OMAP_I2C_IE_RRDY | in omap_i2c_init()
459 OMAP_I2C_IE_AL) | ((omap->fifo_size) ? in omap_i2c_init()
462 omap->pscstate = psc; in omap_i2c_init()
463 omap->scllstate = scll; in omap_i2c_init()
464 omap->sclhstate = sclh; in omap_i2c_init()
466 if (omap->rev <= OMAP_I2C_REV_ON_3430_3530) { in omap_i2c_init()
468 omap->bb_valid = 1; in omap_i2c_init()
471 __omap_i2c_init(omap); in omap_i2c_init()
479 static int omap_i2c_wait_for_bb(struct omap_i2c_dev *omap) in omap_i2c_wait_for_bb() argument
484 while (omap_i2c_read_reg(omap, OMAP_I2C_STAT_REG) & OMAP_I2C_STAT_BB) { in omap_i2c_wait_for_bb()
486 return i2c_recover_bus(&omap->adapter); in omap_i2c_wait_for_bb()
521 static int omap_i2c_wait_for_bb_valid(struct omap_i2c_dev *omap) in omap_i2c_wait_for_bb_valid() argument
528 if (omap->bb_valid) in omap_i2c_wait_for_bb_valid()
533 stat = omap_i2c_read_reg(omap, OMAP_I2C_STAT_REG); in omap_i2c_wait_for_bb_valid()
546 systest = omap_i2c_read_reg(omap, OMAP_I2C_SYSTEST_REG); in omap_i2c_wait_for_bb_valid()
567 dev_warn(omap->dev, "timeout waiting for bus ready\n"); in omap_i2c_wait_for_bb_valid()
574 omap->bb_valid = 1; in omap_i2c_wait_for_bb_valid()
578 static void omap_i2c_resize_fifo(struct omap_i2c_dev *omap, u8 size, bool is_rx) in omap_i2c_resize_fifo() argument
582 if (omap->flags & OMAP_I2C_FLAG_NO_FIFO) in omap_i2c_resize_fifo()
592 omap->threshold = clamp(size, (u8) 1, omap->fifo_size); in omap_i2c_resize_fifo()
594 buf = omap_i2c_read_reg(omap, OMAP_I2C_BUF_REG); in omap_i2c_resize_fifo()
599 buf |= ((omap->threshold - 1) << 8) | OMAP_I2C_BUF_RXFIF_CLR; in omap_i2c_resize_fifo()
603 buf |= (omap->threshold - 1) | OMAP_I2C_BUF_TXFIF_CLR; in omap_i2c_resize_fifo()
606 omap_i2c_write_reg(omap, OMAP_I2C_BUF_REG, buf); in omap_i2c_resize_fifo()
608 if (omap->rev < OMAP_I2C_REV_ON_3630) in omap_i2c_resize_fifo()
609 omap->b_hw = 1; /* Enable hardware fixes */ in omap_i2c_resize_fifo()
612 if (omap->set_mpu_wkup_lat != NULL) in omap_i2c_resize_fifo()
613 omap->latency = (1000000 * omap->threshold) / in omap_i2c_resize_fifo()
614 (1000 * omap->speed / 8); in omap_i2c_resize_fifo()
623 struct omap_i2c_dev *omap = i2c_get_adapdata(adap); in omap_i2c_xfer_msg() local
627 dev_dbg(omap->dev, "addr: 0x%04x, len: %d, flags: 0x%x, stop: %d\n", in omap_i2c_xfer_msg()
633 omap->receiver = !!(msg->flags & I2C_M_RD); in omap_i2c_xfer_msg()
634 omap_i2c_resize_fifo(omap, msg->len, omap->receiver); in omap_i2c_xfer_msg()
636 omap_i2c_write_reg(omap, OMAP_I2C_SA_REG, msg->addr); in omap_i2c_xfer_msg()
639 omap->buf = msg->buf; in omap_i2c_xfer_msg()
640 omap->buf_len = msg->len; in omap_i2c_xfer_msg()
645 omap_i2c_write_reg(omap, OMAP_I2C_CNT_REG, omap->buf_len); in omap_i2c_xfer_msg()
648 w = omap_i2c_read_reg(omap, OMAP_I2C_BUF_REG); in omap_i2c_xfer_msg()
650 omap_i2c_write_reg(omap, OMAP_I2C_BUF_REG, w); in omap_i2c_xfer_msg()
652 reinit_completion(&omap->cmd_complete); in omap_i2c_xfer_msg()
653 omap->cmd_err = 0; in omap_i2c_xfer_msg()
658 if (omap->speed > 400) in omap_i2c_xfer_msg()
668 if (!omap->b_hw && stop) in omap_i2c_xfer_msg()
675 omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, w); in omap_i2c_xfer_msg()
680 if (omap->b_hw && stop) { in omap_i2c_xfer_msg()
682 u16 con = omap_i2c_read_reg(omap, OMAP_I2C_CON_REG); in omap_i2c_xfer_msg()
684 con = omap_i2c_read_reg(omap, OMAP_I2C_CON_REG); in omap_i2c_xfer_msg()
688 dev_err(omap->dev, "controller timed out " in omap_i2c_xfer_msg()
697 omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, w); in omap_i2c_xfer_msg()
704 timeout = wait_for_completion_timeout(&omap->cmd_complete, in omap_i2c_xfer_msg()
707 dev_err(omap->dev, "controller timed out\n"); in omap_i2c_xfer_msg()
708 omap_i2c_reset(omap); in omap_i2c_xfer_msg()
709 __omap_i2c_init(omap); in omap_i2c_xfer_msg()
713 if (likely(!omap->cmd_err)) in omap_i2c_xfer_msg()
717 if (omap->cmd_err & (OMAP_I2C_STAT_ROVR | OMAP_I2C_STAT_XUDF)) { in omap_i2c_xfer_msg()
718 omap_i2c_reset(omap); in omap_i2c_xfer_msg()
719 __omap_i2c_init(omap); in omap_i2c_xfer_msg()
723 if (omap->cmd_err & OMAP_I2C_STAT_AL) in omap_i2c_xfer_msg()
726 if (omap->cmd_err & OMAP_I2C_STAT_NACK) { in omap_i2c_xfer_msg()
730 w = omap_i2c_read_reg(omap, OMAP_I2C_CON_REG); in omap_i2c_xfer_msg()
732 omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, w); in omap_i2c_xfer_msg()
746 struct omap_i2c_dev *omap = i2c_get_adapdata(adap); in omap_i2c_xfer() local
750 r = pm_runtime_get_sync(omap->dev); in omap_i2c_xfer()
754 r = omap_i2c_wait_for_bb_valid(omap); in omap_i2c_xfer()
758 r = omap_i2c_wait_for_bb(omap); in omap_i2c_xfer()
762 if (omap->set_mpu_wkup_lat != NULL) in omap_i2c_xfer()
763 omap->set_mpu_wkup_lat(omap->dev, omap->latency); in omap_i2c_xfer()
774 omap_i2c_wait_for_bb(omap); in omap_i2c_xfer()
776 if (omap->set_mpu_wkup_lat != NULL) in omap_i2c_xfer()
777 omap->set_mpu_wkup_lat(omap->dev, -1); in omap_i2c_xfer()
780 pm_runtime_mark_last_busy(omap->dev); in omap_i2c_xfer()
781 pm_runtime_put_autosuspend(omap->dev); in omap_i2c_xfer()
793 omap_i2c_complete_cmd(struct omap_i2c_dev *omap, u16 err) in omap_i2c_complete_cmd() argument
795 omap->cmd_err |= err; in omap_i2c_complete_cmd()
796 complete(&omap->cmd_complete); in omap_i2c_complete_cmd()
800 omap_i2c_ack_stat(struct omap_i2c_dev *omap, u16 stat) in omap_i2c_ack_stat() argument
802 omap_i2c_write_reg(omap, OMAP_I2C_STAT_REG, stat); in omap_i2c_ack_stat()
805 static inline void i2c_omap_errata_i207(struct omap_i2c_dev *omap, u16 stat) in i2c_omap_errata_i207() argument
816 omap_i2c_ack_stat(omap, OMAP_I2C_STAT_RDR); in i2c_omap_errata_i207()
819 if (!(omap_i2c_read_reg(omap, OMAP_I2C_STAT_REG) in i2c_omap_errata_i207()
823 if (omap_i2c_read_reg(omap, OMAP_I2C_STAT_REG) in i2c_omap_errata_i207()
825 omap_i2c_ack_stat(omap, OMAP_I2C_STAT_RDR); in i2c_omap_errata_i207()
826 dev_dbg(omap->dev, "RDR when bus is busy.\n"); in i2c_omap_errata_i207()
839 struct omap_i2c_dev *omap = dev_id; in omap_i2c_omap1_isr() local
842 if (pm_runtime_suspended(omap->dev)) in omap_i2c_omap1_isr()
845 iv = omap_i2c_read_reg(omap, OMAP_I2C_IV_REG); in omap_i2c_omap1_isr()
850 dev_err(omap->dev, "Arbitration lost\n"); in omap_i2c_omap1_isr()
851 omap_i2c_complete_cmd(omap, OMAP_I2C_STAT_AL); in omap_i2c_omap1_isr()
854 omap_i2c_complete_cmd(omap, OMAP_I2C_STAT_NACK); in omap_i2c_omap1_isr()
855 omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, OMAP_I2C_CON_STP); in omap_i2c_omap1_isr()
858 omap_i2c_complete_cmd(omap, 0); in omap_i2c_omap1_isr()
861 if (omap->buf_len) { in omap_i2c_omap1_isr()
862 w = omap_i2c_read_reg(omap, OMAP_I2C_DATA_REG); in omap_i2c_omap1_isr()
863 *omap->buf++ = w; in omap_i2c_omap1_isr()
864 omap->buf_len--; in omap_i2c_omap1_isr()
865 if (omap->buf_len) { in omap_i2c_omap1_isr()
866 *omap->buf++ = w >> 8; in omap_i2c_omap1_isr()
867 omap->buf_len--; in omap_i2c_omap1_isr()
870 dev_err(omap->dev, "RRDY IRQ while no data requested\n"); in omap_i2c_omap1_isr()
873 if (omap->buf_len) { in omap_i2c_omap1_isr()
874 w = *omap->buf++; in omap_i2c_omap1_isr()
875 omap->buf_len--; in omap_i2c_omap1_isr()
876 if (omap->buf_len) { in omap_i2c_omap1_isr()
877 w |= *omap->buf++ << 8; in omap_i2c_omap1_isr()
878 omap->buf_len--; in omap_i2c_omap1_isr()
880 omap_i2c_write_reg(omap, OMAP_I2C_DATA_REG, w); in omap_i2c_omap1_isr()
882 dev_err(omap->dev, "XRDY IRQ while no data to send\n"); in omap_i2c_omap1_isr()
899 static int errata_omap3_i462(struct omap_i2c_dev *omap) in errata_omap3_i462() argument
905 stat = omap_i2c_read_reg(omap, OMAP_I2C_STAT_REG); in errata_omap3_i462()
910 omap_i2c_ack_stat(omap, (OMAP_I2C_STAT_XRDY | in errata_omap3_i462()
913 omap->cmd_err |= OMAP_I2C_STAT_NACK; in errata_omap3_i462()
914 omap_i2c_ack_stat(omap, OMAP_I2C_STAT_NACK); in errata_omap3_i462()
918 dev_err(omap->dev, "Arbitration lost\n"); in errata_omap3_i462()
919 omap->cmd_err |= OMAP_I2C_STAT_AL; in errata_omap3_i462()
920 omap_i2c_ack_stat(omap, OMAP_I2C_STAT_AL); in errata_omap3_i462()
930 dev_err(omap->dev, "timeout waiting on XUDF bit\n"); in errata_omap3_i462()
937 static void omap_i2c_receive_data(struct omap_i2c_dev *omap, u8 num_bytes, in omap_i2c_receive_data() argument
943 w = omap_i2c_read_reg(omap, OMAP_I2C_DATA_REG); in omap_i2c_receive_data()
944 *omap->buf++ = w; in omap_i2c_receive_data()
945 omap->buf_len--; in omap_i2c_receive_data()
951 if (omap->flags & OMAP_I2C_FLAG_16BIT_DATA_REG) { in omap_i2c_receive_data()
952 *omap->buf++ = w >> 8; in omap_i2c_receive_data()
953 omap->buf_len--; in omap_i2c_receive_data()
958 static int omap_i2c_transmit_data(struct omap_i2c_dev *omap, u8 num_bytes, in omap_i2c_transmit_data() argument
964 w = *omap->buf++; in omap_i2c_transmit_data()
965 omap->buf_len--; in omap_i2c_transmit_data()
971 if (omap->flags & OMAP_I2C_FLAG_16BIT_DATA_REG) { in omap_i2c_transmit_data()
972 w |= *omap->buf++ << 8; in omap_i2c_transmit_data()
973 omap->buf_len--; in omap_i2c_transmit_data()
976 if (omap->errata & I2C_OMAP_ERRATA_I462) { in omap_i2c_transmit_data()
979 ret = errata_omap3_i462(omap); in omap_i2c_transmit_data()
984 omap_i2c_write_reg(omap, OMAP_I2C_DATA_REG, w); in omap_i2c_transmit_data()
993 struct omap_i2c_dev *omap = dev_id; in omap_i2c_isr() local
998 spin_lock(&omap->lock); in omap_i2c_isr()
999 mask = omap_i2c_read_reg(omap, OMAP_I2C_IE_REG); in omap_i2c_isr()
1000 stat = omap_i2c_read_reg(omap, OMAP_I2C_STAT_REG); in omap_i2c_isr()
1005 spin_unlock(&omap->lock); in omap_i2c_isr()
1013 struct omap_i2c_dev *omap = dev_id; in omap_i2c_isr_thread() local
1019 spin_lock_irqsave(&omap->lock, flags); in omap_i2c_isr_thread()
1021 bits = omap_i2c_read_reg(omap, OMAP_I2C_IE_REG); in omap_i2c_isr_thread()
1022 stat = omap_i2c_read_reg(omap, OMAP_I2C_STAT_REG); in omap_i2c_isr_thread()
1026 if (omap->receiver) in omap_i2c_isr_thread()
1036 dev_dbg(omap->dev, "IRQ (ISR = 0x%04x)\n", stat); in omap_i2c_isr_thread()
1038 dev_warn(omap->dev, "Too much work in one IRQ\n"); in omap_i2c_isr_thread()
1044 omap_i2c_ack_stat(omap, OMAP_I2C_STAT_NACK); in omap_i2c_isr_thread()
1048 dev_err(omap->dev, "Arbitration lost\n"); in omap_i2c_isr_thread()
1050 omap_i2c_ack_stat(omap, OMAP_I2C_STAT_AL); in omap_i2c_isr_thread()
1057 omap_i2c_ack_stat(omap, OMAP_I2C_STAT_ARDY); in omap_i2c_isr_thread()
1061 omap_i2c_ack_stat(omap, (OMAP_I2C_STAT_RRDY | in omap_i2c_isr_thread()
1072 if (omap->fifo_size) in omap_i2c_isr_thread()
1073 num_bytes = omap->buf_len; in omap_i2c_isr_thread()
1075 if (omap->errata & I2C_OMAP_ERRATA_I207) { in omap_i2c_isr_thread()
1076 i2c_omap_errata_i207(omap, stat); in omap_i2c_isr_thread()
1077 num_bytes = (omap_i2c_read_reg(omap, in omap_i2c_isr_thread()
1081 omap_i2c_receive_data(omap, num_bytes, true); in omap_i2c_isr_thread()
1082 omap_i2c_ack_stat(omap, OMAP_I2C_STAT_RDR); in omap_i2c_isr_thread()
1089 if (omap->threshold) in omap_i2c_isr_thread()
1090 num_bytes = omap->threshold; in omap_i2c_isr_thread()
1092 omap_i2c_receive_data(omap, num_bytes, false); in omap_i2c_isr_thread()
1093 omap_i2c_ack_stat(omap, OMAP_I2C_STAT_RRDY); in omap_i2c_isr_thread()
1101 if (omap->fifo_size) in omap_i2c_isr_thread()
1102 num_bytes = omap->buf_len; in omap_i2c_isr_thread()
1104 ret = omap_i2c_transmit_data(omap, num_bytes, true); in omap_i2c_isr_thread()
1108 omap_i2c_ack_stat(omap, OMAP_I2C_STAT_XDR); in omap_i2c_isr_thread()
1116 if (omap->threshold) in omap_i2c_isr_thread()
1117 num_bytes = omap->threshold; in omap_i2c_isr_thread()
1119 ret = omap_i2c_transmit_data(omap, num_bytes, false); in omap_i2c_isr_thread()
1123 omap_i2c_ack_stat(omap, OMAP_I2C_STAT_XRDY); in omap_i2c_isr_thread()
1128 dev_err(omap->dev, "Receive overrun\n"); in omap_i2c_isr_thread()
1130 omap_i2c_ack_stat(omap, OMAP_I2C_STAT_ROVR); in omap_i2c_isr_thread()
1135 dev_err(omap->dev, "Transmit underflow\n"); in omap_i2c_isr_thread()
1137 omap_i2c_ack_stat(omap, OMAP_I2C_STAT_XUDF); in omap_i2c_isr_thread()
1142 omap_i2c_complete_cmd(omap, err); in omap_i2c_isr_thread()
1145 spin_unlock_irqrestore(&omap->lock, flags); in omap_i2c_isr_thread()
1287 struct omap_i2c_dev *omap; in omap_i2c_probe() local
1305 omap = devm_kzalloc(&pdev->dev, sizeof(struct omap_i2c_dev), GFP_KERNEL); in omap_i2c_probe()
1306 if (!omap) in omap_i2c_probe()
1310 omap->base = devm_ioremap_resource(&pdev->dev, mem); in omap_i2c_probe()
1311 if (IS_ERR(omap->base)) in omap_i2c_probe()
1312 return PTR_ERR(omap->base); in omap_i2c_probe()
1319 omap->flags = pdata->flags; in omap_i2c_probe()
1323 omap->speed = freq / 1000; in omap_i2c_probe()
1325 omap->speed = pdata->clkrate; in omap_i2c_probe()
1326 omap->flags = pdata->flags; in omap_i2c_probe()
1327 omap->set_mpu_wkup_lat = pdata->set_mpu_wkup_lat; in omap_i2c_probe()
1330 omap->dev = &pdev->dev; in omap_i2c_probe()
1331 omap->irq = irq; in omap_i2c_probe()
1333 spin_lock_init(&omap->lock); in omap_i2c_probe()
1335 platform_set_drvdata(pdev, omap); in omap_i2c_probe()
1336 init_completion(&omap->cmd_complete); in omap_i2c_probe()
1338 omap->reg_shift = (omap->flags >> OMAP_I2C_FLAG_BUS_SHIFT__SHIFT) & 3; in omap_i2c_probe()
1340 pm_runtime_enable(omap->dev); in omap_i2c_probe()
1341 pm_runtime_set_autosuspend_delay(omap->dev, OMAP_I2C_PM_TIMEOUT); in omap_i2c_probe()
1342 pm_runtime_use_autosuspend(omap->dev); in omap_i2c_probe()
1344 r = pm_runtime_get_sync(omap->dev); in omap_i2c_probe()
1354 rev = readw_relaxed(omap->base + 0x04); in omap_i2c_probe()
1356 omap->scheme = OMAP_I2C_SCHEME(rev); in omap_i2c_probe()
1357 switch (omap->scheme) { in omap_i2c_probe()
1359 omap->regs = (u8 *)reg_map_ip_v1; in omap_i2c_probe()
1360 omap->rev = omap_i2c_read_reg(omap, OMAP_I2C_REV_REG); in omap_i2c_probe()
1361 minor = OMAP_I2C_REV_SCHEME_0_MAJOR(omap->rev); in omap_i2c_probe()
1362 major = OMAP_I2C_REV_SCHEME_0_MAJOR(omap->rev); in omap_i2c_probe()
1367 omap->regs = (u8 *)reg_map_ip_v2; in omap_i2c_probe()
1369 omap_i2c_read_reg(omap, OMAP_I2C_IP_V2_REVNB_LO); in omap_i2c_probe()
1372 omap->rev = rev; in omap_i2c_probe()
1375 omap->errata = 0; in omap_i2c_probe()
1377 if (omap->rev >= OMAP_I2C_REV_ON_2430 && in omap_i2c_probe()
1378 omap->rev < OMAP_I2C_REV_ON_4430_PLUS) in omap_i2c_probe()
1379 omap->errata |= I2C_OMAP_ERRATA_I207; in omap_i2c_probe()
1381 if (omap->rev <= OMAP_I2C_REV_ON_3430_3530) in omap_i2c_probe()
1382 omap->errata |= I2C_OMAP_ERRATA_I462; in omap_i2c_probe()
1384 if (!(omap->flags & OMAP_I2C_FLAG_NO_FIFO)) { in omap_i2c_probe()
1388 s = (omap_i2c_read_reg(omap, OMAP_I2C_BUFSTAT_REG) >> 14) & 0x3; in omap_i2c_probe()
1389 omap->fifo_size = 0x8 << s; in omap_i2c_probe()
1397 omap->fifo_size = (omap->fifo_size / 2); in omap_i2c_probe()
1399 if (omap->rev < OMAP_I2C_REV_ON_3630) in omap_i2c_probe()
1400 omap->b_hw = 1; /* Enable hardware fixes */ in omap_i2c_probe()
1403 if (omap->set_mpu_wkup_lat != NULL) in omap_i2c_probe()
1404 omap->latency = (1000000 * omap->fifo_size) / in omap_i2c_probe()
1405 (1000 * omap->speed / 8); in omap_i2c_probe()
1409 omap_i2c_init(omap); in omap_i2c_probe()
1411 if (omap->rev < OMAP_I2C_OMAP1_REV_2) in omap_i2c_probe()
1412 r = devm_request_irq(&pdev->dev, omap->irq, omap_i2c_omap1_isr, in omap_i2c_probe()
1413 IRQF_NO_SUSPEND, pdev->name, omap); in omap_i2c_probe()
1415 r = devm_request_threaded_irq(&pdev->dev, omap->irq, in omap_i2c_probe()
1418 pdev->name, omap); in omap_i2c_probe()
1421 dev_err(omap->dev, "failure requesting irq %i\n", omap->irq); in omap_i2c_probe()
1425 adap = &omap->adapter; in omap_i2c_probe()
1426 i2c_set_adapdata(adap, omap); in omap_i2c_probe()
1439 dev_err(omap->dev, "failure adding adapter\n"); in omap_i2c_probe()
1443 dev_info(omap->dev, "bus %d rev%d.%d at %d kHz\n", adap->nr, in omap_i2c_probe()
1444 major, minor, omap->speed); in omap_i2c_probe()
1446 pm_runtime_mark_last_busy(omap->dev); in omap_i2c_probe()
1447 pm_runtime_put_autosuspend(omap->dev); in omap_i2c_probe()
1452 omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, 0); in omap_i2c_probe()
1453 pm_runtime_put(omap->dev); in omap_i2c_probe()
1462 struct omap_i2c_dev *omap = platform_get_drvdata(pdev); in omap_i2c_remove() local
1465 i2c_del_adapter(&omap->adapter); in omap_i2c_remove()
1470 omap_i2c_write_reg(omap, OMAP_I2C_CON_REG, 0); in omap_i2c_remove()
1479 struct omap_i2c_dev *omap = dev_get_drvdata(dev); in omap_i2c_runtime_suspend() local
1481 omap->iestate = omap_i2c_read_reg(omap, OMAP_I2C_IE_REG); in omap_i2c_runtime_suspend()
1483 if (omap->scheme == OMAP_I2C_SCHEME_0) in omap_i2c_runtime_suspend()
1484 omap_i2c_write_reg(omap, OMAP_I2C_IE_REG, 0); in omap_i2c_runtime_suspend()
1486 omap_i2c_write_reg(omap, OMAP_I2C_IP_V2_IRQENABLE_CLR, in omap_i2c_runtime_suspend()
1489 if (omap->rev < OMAP_I2C_OMAP1_REV_2) { in omap_i2c_runtime_suspend()
1490 omap_i2c_read_reg(omap, OMAP_I2C_IV_REG); /* Read clears */ in omap_i2c_runtime_suspend()
1492 omap_i2c_write_reg(omap, OMAP_I2C_STAT_REG, omap->iestate); in omap_i2c_runtime_suspend()
1495 omap_i2c_read_reg(omap, OMAP_I2C_STAT_REG); in omap_i2c_runtime_suspend()
1505 struct omap_i2c_dev *omap = dev_get_drvdata(dev); in omap_i2c_runtime_resume() local
1509 if (!omap->regs) in omap_i2c_runtime_resume()
1512 __omap_i2c_init(omap); in omap_i2c_runtime_resume()