Lines Matching refs:i2c_dev
444 static void stm32f7_i2c_disable_irq(struct stm32f7_i2c_dev *i2c_dev, u32 mask) in stm32f7_i2c_disable_irq() argument
446 stm32f7_i2c_clr_bits(i2c_dev->base + STM32F7_I2C_CR1, mask); in stm32f7_i2c_disable_irq()
461 static int stm32f7_i2c_compute_timing(struct stm32f7_i2c_dev *i2c_dev, in stm32f7_i2c_compute_timing() argument
485 dev_err(i2c_dev->dev, "speed out of bound {%d}\n", in stm32f7_i2c_compute_timing()
492 dev_err(i2c_dev->dev, in stm32f7_i2c_compute_timing()
499 i2c_dev->dnf = DIV_ROUND_CLOSEST(i2c_dev->dnf_dt, i2cclk); in stm32f7_i2c_compute_timing()
500 if (i2c_dev->dnf > STM32F7_I2C_DNF_MAX) { in stm32f7_i2c_compute_timing()
501 dev_err(i2c_dev->dev, in stm32f7_i2c_compute_timing()
503 i2c_dev->dnf * i2cclk, STM32F7_I2C_DNF_MAX * i2cclk); in stm32f7_i2c_compute_timing()
509 (i2c_dev->analog_filter ? in stm32f7_i2c_compute_timing()
512 (i2c_dev->analog_filter ? in stm32f7_i2c_compute_timing()
514 dnf_delay = i2c_dev->dnf * i2cclk; in stm32f7_i2c_compute_timing()
517 af_delay_min - (i2c_dev->dnf + 3) * i2cclk; in stm32f7_i2c_compute_timing()
520 af_delay_max - (i2c_dev->dnf + 4) * i2cclk; in stm32f7_i2c_compute_timing()
529 dev_dbg(i2c_dev->dev, "SDADEL(min/max): %i/%i, SCLDEL(Min): %i\n", in stm32f7_i2c_compute_timing()
570 dev_err(i2c_dev->dev, "no Prescaler solution\n"); in stm32f7_i2c_compute_timing()
627 dev_err(i2c_dev->dev, "no solution at all\n"); in stm32f7_i2c_compute_timing()
638 dev_dbg(i2c_dev->dev, in stm32f7_i2c_compute_timing()
665 static int stm32f7_i2c_setup_timing(struct stm32f7_i2c_dev *i2c_dev, in stm32f7_i2c_setup_timing() argument
672 t->scl_rise_ns = i2c_dev->setup.rise_time; in stm32f7_i2c_setup_timing()
673 t->scl_fall_ns = i2c_dev->setup.fall_time; in stm32f7_i2c_setup_timing()
675 i2c_parse_fw_timings(i2c_dev->dev, t, false); in stm32f7_i2c_setup_timing()
678 dev_err(i2c_dev->dev, "Invalid bus speed (%i>%i)\n", in stm32f7_i2c_setup_timing()
684 i2c_dev->setup.rise_time = t->scl_rise_ns; in stm32f7_i2c_setup_timing()
685 i2c_dev->setup.fall_time = t->scl_fall_ns; in stm32f7_i2c_setup_timing()
686 i2c_dev->dnf_dt = t->digital_filter_width_ns; in stm32f7_i2c_setup_timing()
687 setup->clock_src = clk_get_rate(i2c_dev->clk); in stm32f7_i2c_setup_timing()
690 dev_err(i2c_dev->dev, "clock rate is 0\n"); in stm32f7_i2c_setup_timing()
694 if (!of_property_read_bool(i2c_dev->dev->of_node, "i2c-digital-filter")) in stm32f7_i2c_setup_timing()
695 i2c_dev->dnf_dt = STM32F7_I2C_DNF_DEFAULT; in stm32f7_i2c_setup_timing()
698 ret = stm32f7_i2c_compute_timing(i2c_dev, setup, in stm32f7_i2c_setup_timing()
699 &i2c_dev->timing); in stm32f7_i2c_setup_timing()
701 dev_err(i2c_dev->dev, in stm32f7_i2c_setup_timing()
707 dev_warn(i2c_dev->dev, in stm32f7_i2c_setup_timing()
714 dev_err(i2c_dev->dev, "Impossible to compute I2C timings.\n"); in stm32f7_i2c_setup_timing()
718 i2c_dev->analog_filter = of_property_read_bool(i2c_dev->dev->of_node, in stm32f7_i2c_setup_timing()
721 dev_dbg(i2c_dev->dev, "I2C Speed(%i), Clk Source(%i)\n", in stm32f7_i2c_setup_timing()
723 dev_dbg(i2c_dev->dev, "I2C Rise(%i) and Fall(%i) Time\n", in stm32f7_i2c_setup_timing()
725 dev_dbg(i2c_dev->dev, "I2C Analog Filter(%s), DNF(%i)\n", in stm32f7_i2c_setup_timing()
726 str_on_off(i2c_dev->analog_filter), i2c_dev->dnf); in stm32f7_i2c_setup_timing()
728 i2c_dev->bus_rate = setup->speed_freq; in stm32f7_i2c_setup_timing()
733 static void stm32f7_i2c_disable_dma_req(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_disable_dma_req() argument
735 void __iomem *base = i2c_dev->base; in stm32f7_i2c_disable_dma_req()
743 struct stm32f7_i2c_dev *i2c_dev = arg; in stm32f7_i2c_dma_callback() local
744 struct stm32_i2c_dma *dma = i2c_dev->dma; in stm32f7_i2c_dma_callback()
745 struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; in stm32f7_i2c_dma_callback()
747 stm32f7_i2c_disable_dma_req(i2c_dev); in stm32f7_i2c_dma_callback()
749 dma_unmap_single(i2c_dev->dev, dma->dma_buf, dma->dma_len, in stm32f7_i2c_dma_callback()
752 i2c_put_dma_safe_msg_buf(f7_msg->buf, i2c_dev->msg, true); in stm32f7_i2c_dma_callback()
756 static void stm32f7_i2c_hw_config(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_hw_config() argument
758 struct stm32f7_i2c_timings *t = &i2c_dev->timing; in stm32f7_i2c_hw_config()
767 writel_relaxed(timing, i2c_dev->base + STM32F7_I2C_TIMINGR); in stm32f7_i2c_hw_config()
770 if (i2c_dev->analog_filter) in stm32f7_i2c_hw_config()
771 stm32f7_i2c_clr_bits(i2c_dev->base + STM32F7_I2C_CR1, in stm32f7_i2c_hw_config()
774 stm32f7_i2c_set_bits(i2c_dev->base + STM32F7_I2C_CR1, in stm32f7_i2c_hw_config()
778 stm32f7_i2c_clr_bits(i2c_dev->base + STM32F7_I2C_CR1, in stm32f7_i2c_hw_config()
780 stm32f7_i2c_set_bits(i2c_dev->base + STM32F7_I2C_CR1, in stm32f7_i2c_hw_config()
781 STM32F7_I2C_CR1_DNF(i2c_dev->dnf)); in stm32f7_i2c_hw_config()
783 stm32f7_i2c_set_bits(i2c_dev->base + STM32F7_I2C_CR1, in stm32f7_i2c_hw_config()
787 static void stm32f7_i2c_write_tx_data(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_write_tx_data() argument
789 struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; in stm32f7_i2c_write_tx_data()
790 void __iomem *base = i2c_dev->base; in stm32f7_i2c_write_tx_data()
798 static void stm32f7_i2c_read_rx_data(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_read_rx_data() argument
800 struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; in stm32f7_i2c_read_rx_data()
801 void __iomem *base = i2c_dev->base; in stm32f7_i2c_read_rx_data()
812 static void stm32f7_i2c_reload(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_reload() argument
814 struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; in stm32f7_i2c_reload()
817 if (i2c_dev->use_dma) in stm32f7_i2c_reload()
820 cr2 = readl_relaxed(i2c_dev->base + STM32F7_I2C_CR2); in stm32f7_i2c_reload()
830 writel_relaxed(cr2, i2c_dev->base + STM32F7_I2C_CR2); in stm32f7_i2c_reload()
833 static void stm32f7_i2c_smbus_reload(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_smbus_reload() argument
835 struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; in stm32f7_i2c_smbus_reload()
843 stm32f7_i2c_read_rx_data(i2c_dev); in stm32f7_i2c_smbus_reload()
850 cr2 = readl_relaxed(i2c_dev->base + STM32F7_I2C_CR2); in stm32f7_i2c_smbus_reload()
853 writel_relaxed(cr2, i2c_dev->base + STM32F7_I2C_CR2); in stm32f7_i2c_smbus_reload()
858 struct stm32f7_i2c_dev *i2c_dev = i2c_get_adapdata(i2c_adap); in stm32f7_i2c_release_bus() local
860 stm32f7_i2c_clr_bits(i2c_dev->base + STM32F7_I2C_CR1, in stm32f7_i2c_release_bus()
863 stm32f7_i2c_hw_config(i2c_dev); in stm32f7_i2c_release_bus()
866 static int stm32f7_i2c_wait_free_bus(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_wait_free_bus() argument
871 ret = readl_relaxed_poll_timeout(i2c_dev->base + STM32F7_I2C_ISR, in stm32f7_i2c_wait_free_bus()
878 stm32f7_i2c_release_bus(&i2c_dev->adap); in stm32f7_i2c_wait_free_bus()
883 static void stm32f7_i2c_xfer_msg(struct stm32f7_i2c_dev *i2c_dev, in stm32f7_i2c_xfer_msg() argument
886 struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; in stm32f7_i2c_xfer_msg()
887 void __iomem *base = i2c_dev->base; in stm32f7_i2c_xfer_msg()
896 f7_msg->stop = (i2c_dev->msg_id >= i2c_dev->msg_num - 1); in stm32f7_i2c_xfer_msg()
898 reinit_completion(&i2c_dev->complete); in stm32f7_i2c_xfer_msg()
937 i2c_dev->use_dma = false; in stm32f7_i2c_xfer_msg()
938 if (i2c_dev->dma && !i2c_dev->atomic) { in stm32f7_i2c_xfer_msg()
942 ret = stm32_i2c_prep_dma_xfer(i2c_dev->dev, i2c_dev->dma, in stm32f7_i2c_xfer_msg()
946 i2c_dev); in stm32f7_i2c_xfer_msg()
948 dev_warn(i2c_dev->dev, "can't use DMA\n"); in stm32f7_i2c_xfer_msg()
952 i2c_dev->use_dma = true; in stm32f7_i2c_xfer_msg()
957 if (!i2c_dev->use_dma) { in stm32f7_i2c_xfer_msg()
969 if (i2c_dev->atomic) in stm32f7_i2c_xfer_msg()
975 i2c_dev->master_mode = true; in stm32f7_i2c_xfer_msg()
982 static int stm32f7_i2c_smbus_xfer_msg(struct stm32f7_i2c_dev *i2c_dev, in stm32f7_i2c_smbus_xfer_msg() argument
986 struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; in stm32f7_i2c_smbus_xfer_msg()
987 struct device *dev = i2c_dev->dev; in stm32f7_i2c_smbus_xfer_msg()
988 void __iomem *base = i2c_dev->base; in stm32f7_i2c_smbus_xfer_msg()
993 reinit_completion(&i2c_dev->complete); in stm32f7_i2c_smbus_xfer_msg()
1114 i2c_dev->use_dma = false; in stm32f7_i2c_smbus_xfer_msg()
1115 if (i2c_dev->dma && f7_msg->count >= STM32F7_I2C_DMA_LEN_MIN) { in stm32f7_i2c_smbus_xfer_msg()
1116 ret = stm32_i2c_prep_dma_xfer(i2c_dev->dev, i2c_dev->dma, in stm32f7_i2c_smbus_xfer_msg()
1120 i2c_dev); in stm32f7_i2c_smbus_xfer_msg()
1122 i2c_dev->use_dma = true; in stm32f7_i2c_smbus_xfer_msg()
1124 dev_warn(i2c_dev->dev, "can't use DMA\n"); in stm32f7_i2c_smbus_xfer_msg()
1127 if (!i2c_dev->use_dma) { in stm32f7_i2c_smbus_xfer_msg()
1142 i2c_dev->master_mode = true; in stm32f7_i2c_smbus_xfer_msg()
1151 static void stm32f7_i2c_smbus_rep_start(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_smbus_rep_start() argument
1153 struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; in stm32f7_i2c_smbus_rep_start()
1154 void __iomem *base = i2c_dev->base; in stm32f7_i2c_smbus_rep_start()
1206 i2c_dev->use_dma = false; in stm32f7_i2c_smbus_rep_start()
1207 if (i2c_dev->dma && f7_msg->count >= STM32F7_I2C_DMA_LEN_MIN && in stm32f7_i2c_smbus_rep_start()
1210 ret = stm32_i2c_prep_dma_xfer(i2c_dev->dev, i2c_dev->dma, in stm32f7_i2c_smbus_rep_start()
1214 i2c_dev); in stm32f7_i2c_smbus_rep_start()
1217 i2c_dev->use_dma = true; in stm32f7_i2c_smbus_rep_start()
1219 dev_warn(i2c_dev->dev, "can't use DMA\n"); in stm32f7_i2c_smbus_rep_start()
1222 if (!i2c_dev->use_dma) in stm32f7_i2c_smbus_rep_start()
1235 static int stm32f7_i2c_smbus_check_pec(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_smbus_check_pec() argument
1237 struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; in stm32f7_i2c_smbus_check_pec()
1240 internal_pec = readl_relaxed(i2c_dev->base + STM32F7_I2C_PECR); in stm32f7_i2c_smbus_check_pec()
1257 dev_err(i2c_dev->dev, "Unsupported smbus protocol for PEC\n"); in stm32f7_i2c_smbus_check_pec()
1262 dev_err(i2c_dev->dev, "Bad PEC 0x%02x vs. 0x%02x\n", in stm32f7_i2c_smbus_check_pec()
1296 static void stm32f7_i2c_slave_start(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_slave_start() argument
1298 struct i2c_client *slave = i2c_dev->slave_running; in stm32f7_i2c_slave_start()
1299 void __iomem *base = i2c_dev->base; in stm32f7_i2c_slave_start()
1303 if (i2c_dev->slave_dir) { in stm32f7_i2c_slave_start()
1344 static void stm32f7_i2c_slave_addr(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_slave_addr() argument
1346 void __iomem *base = i2c_dev->base; in stm32f7_i2c_slave_addr()
1350 isr = readl_relaxed(i2c_dev->base + STM32F7_I2C_ISR); in stm32f7_i2c_slave_addr()
1355 if (stm32f7_i2c_is_addr_match(i2c_dev->slave[i], addcode)) { in stm32f7_i2c_slave_addr()
1356 i2c_dev->slave_running = i2c_dev->slave[i]; in stm32f7_i2c_slave_addr()
1357 i2c_dev->slave_dir = dir; in stm32f7_i2c_slave_addr()
1360 stm32f7_i2c_slave_start(i2c_dev); in stm32f7_i2c_slave_addr()
1370 static int stm32f7_i2c_get_slave_id(struct stm32f7_i2c_dev *i2c_dev, in stm32f7_i2c_get_slave_id() argument
1376 if (i2c_dev->slave[i] == slave) { in stm32f7_i2c_get_slave_id()
1382 dev_err(i2c_dev->dev, "Slave 0x%x not registered\n", slave->addr); in stm32f7_i2c_get_slave_id()
1387 static int stm32f7_i2c_get_free_slave_id(struct stm32f7_i2c_dev *i2c_dev, in stm32f7_i2c_get_free_slave_id() argument
1390 struct device *dev = i2c_dev->dev; in stm32f7_i2c_get_free_slave_id()
1398 if (i2c_dev->smbus_mode && (slave->addr == 0x08)) { in stm32f7_i2c_get_free_slave_id()
1399 if (i2c_dev->slave[STM32F7_SLAVE_HOSTNOTIFY]) in stm32f7_i2c_get_free_slave_id()
1409 if (!i2c_dev->slave[i]) { in stm32f7_i2c_get_free_slave_id()
1421 static bool stm32f7_i2c_is_slave_registered(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_is_slave_registered() argument
1426 if (i2c_dev->slave[i]) in stm32f7_i2c_is_slave_registered()
1433 static bool stm32f7_i2c_is_slave_busy(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_is_slave_busy() argument
1439 if (i2c_dev->slave[i]) in stm32f7_i2c_is_slave_busy()
1446 static irqreturn_t stm32f7_i2c_slave_isr_event(struct stm32f7_i2c_dev *i2c_dev, u32 status) in stm32f7_i2c_slave_isr_event() argument
1448 void __iomem *base = i2c_dev->base; in stm32f7_i2c_slave_isr_event()
1455 i2c_slave_event(i2c_dev->slave_running, in stm32f7_i2c_slave_isr_event()
1469 val = readb_relaxed(i2c_dev->base + STM32F7_I2C_RXDR); in stm32f7_i2c_slave_isr_event()
1470 ret = i2c_slave_event(i2c_dev->slave_running, in stm32f7_i2c_slave_isr_event()
1474 cr2 = readl_relaxed(i2c_dev->base + STM32F7_I2C_CR2); in stm32f7_i2c_slave_isr_event()
1476 writel_relaxed(cr2, i2c_dev->base + STM32F7_I2C_CR2); in stm32f7_i2c_slave_isr_event()
1485 dev_dbg(i2c_dev->dev, "<%s>: Receive NACK\n", __func__); in stm32f7_i2c_slave_isr_event()
1492 stm32f7_i2c_disable_irq(i2c_dev, STM32F7_I2C_XFER_IRQ_MASK); in stm32f7_i2c_slave_isr_event()
1494 if (i2c_dev->slave_dir) { in stm32f7_i2c_slave_isr_event()
1507 i2c_slave_event(i2c_dev->slave_running, I2C_SLAVE_STOP, &val); in stm32f7_i2c_slave_isr_event()
1509 i2c_dev->slave_running = NULL; in stm32f7_i2c_slave_isr_event()
1514 stm32f7_i2c_slave_addr(i2c_dev); in stm32f7_i2c_slave_isr_event()
1519 static irqreturn_t stm32f7_i2c_handle_isr_errs(struct stm32f7_i2c_dev *i2c_dev, u32 status) in stm32f7_i2c_handle_isr_errs() argument
1521 struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; in stm32f7_i2c_handle_isr_errs()
1523 void __iomem *base = i2c_dev->base; in stm32f7_i2c_handle_isr_errs()
1524 struct device *dev = i2c_dev->dev; in stm32f7_i2c_handle_isr_errs()
1530 stm32f7_i2c_release_bus(&i2c_dev->adap); in stm32f7_i2c_handle_isr_errs()
1550 i2c_handle_smbus_alert(i2c_dev->alert->ara); in stm32f7_i2c_handle_isr_errs()
1554 if (!i2c_dev->slave_running) { in stm32f7_i2c_handle_isr_errs()
1557 if (stm32f7_i2c_is_slave_registered(i2c_dev)) in stm32f7_i2c_handle_isr_errs()
1561 stm32f7_i2c_disable_irq(i2c_dev, mask); in stm32f7_i2c_handle_isr_errs()
1565 if (i2c_dev->use_dma) in stm32f7_i2c_handle_isr_errs()
1566 stm32f7_i2c_dma_callback(i2c_dev); in stm32f7_i2c_handle_isr_errs()
1568 i2c_dev->master_mode = false; in stm32f7_i2c_handle_isr_errs()
1569 complete(&i2c_dev->complete); in stm32f7_i2c_handle_isr_errs()
1578 struct stm32f7_i2c_dev *i2c_dev = data; in stm32f7_i2c_isr_event() local
1581 status = readl_relaxed(i2c_dev->base + STM32F7_I2C_ISR); in stm32f7_i2c_isr_event()
1587 if (!i2c_dev->master_mode || in stm32f7_i2c_isr_event()
1588 (i2c_dev->setup.single_it_line && (status & STM32F7_ERR_EVENTS))) in stm32f7_i2c_isr_event()
1593 stm32f7_i2c_write_tx_data(i2c_dev); in stm32f7_i2c_isr_event()
1597 stm32f7_i2c_read_rx_data(i2c_dev); in stm32f7_i2c_isr_event()
1610 struct stm32f7_i2c_dev *i2c_dev = data; in stm32f7_i2c_isr_event_thread() local
1611 struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; in stm32f7_i2c_isr_event_thread()
1612 void __iomem *base = i2c_dev->base; in stm32f7_i2c_isr_event_thread()
1616 status = readl_relaxed(i2c_dev->base + STM32F7_I2C_ISR); in stm32f7_i2c_isr_event_thread()
1618 if (!i2c_dev->master_mode) in stm32f7_i2c_isr_event_thread()
1619 return stm32f7_i2c_slave_isr_event(i2c_dev, status); in stm32f7_i2c_isr_event_thread()
1622 if (i2c_dev->setup.single_it_line && (status & STM32F7_ERR_EVENTS)) in stm32f7_i2c_isr_event_thread()
1623 return stm32f7_i2c_handle_isr_errs(i2c_dev, status); in stm32f7_i2c_isr_event_thread()
1627 dev_dbg(i2c_dev->dev, "<%s>: Receive NACK (addr %x)\n", in stm32f7_i2c_isr_event_thread()
1630 if (i2c_dev->use_dma) in stm32f7_i2c_isr_event_thread()
1631 stm32f7_i2c_dma_callback(i2c_dev); in stm32f7_i2c_isr_event_thread()
1637 stm32f7_i2c_smbus_reload(i2c_dev); in stm32f7_i2c_isr_event_thread()
1639 stm32f7_i2c_reload(i2c_dev); in stm32f7_i2c_isr_event_thread()
1645 if (i2c_dev->use_dma && !f7_msg->result) { in stm32f7_i2c_isr_event_thread()
1646 ret = wait_for_completion_timeout(&i2c_dev->dma->dma_complete, HZ); in stm32f7_i2c_isr_event_thread()
1648 dev_dbg(i2c_dev->dev, "<%s>: Timed out\n", __func__); in stm32f7_i2c_isr_event_thread()
1649 stm32f7_i2c_dma_callback(i2c_dev); in stm32f7_i2c_isr_event_thread()
1657 stm32f7_i2c_smbus_rep_start(i2c_dev); in stm32f7_i2c_isr_event_thread()
1659 i2c_dev->msg_id++; in stm32f7_i2c_isr_event_thread()
1660 i2c_dev->msg++; in stm32f7_i2c_isr_event_thread()
1661 stm32f7_i2c_xfer_msg(i2c_dev, i2c_dev->msg); in stm32f7_i2c_isr_event_thread()
1668 if (stm32f7_i2c_is_slave_registered(i2c_dev)) in stm32f7_i2c_isr_event_thread()
1672 stm32f7_i2c_disable_irq(i2c_dev, mask); in stm32f7_i2c_isr_event_thread()
1677 i2c_dev->master_mode = false; in stm32f7_i2c_isr_event_thread()
1678 complete(&i2c_dev->complete); in stm32f7_i2c_isr_event_thread()
1686 struct stm32f7_i2c_dev *i2c_dev = data; in stm32f7_i2c_isr_error_thread() local
1689 status = readl_relaxed(i2c_dev->base + STM32F7_I2C_ISR); in stm32f7_i2c_isr_error_thread()
1691 return stm32f7_i2c_handle_isr_errs(i2c_dev, status); in stm32f7_i2c_isr_error_thread()
1694 static int stm32f7_i2c_wait_polling(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_wait_polling() argument
1696 ktime_t timeout = ktime_add_ms(ktime_get(), i2c_dev->adap.timeout); in stm32f7_i2c_wait_polling()
1700 stm32f7_i2c_isr_event(0, i2c_dev); in stm32f7_i2c_wait_polling()
1702 if (completion_done(&i2c_dev->complete)) in stm32f7_i2c_wait_polling()
1712 struct stm32f7_i2c_dev *i2c_dev = i2c_get_adapdata(i2c_adap); in stm32f7_i2c_xfer_core() local
1713 struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; in stm32f7_i2c_xfer_core()
1714 struct stm32_i2c_dma *dma = i2c_dev->dma; in stm32f7_i2c_xfer_core()
1718 i2c_dev->msg = msgs; in stm32f7_i2c_xfer_core()
1719 i2c_dev->msg_num = num; in stm32f7_i2c_xfer_core()
1720 i2c_dev->msg_id = 0; in stm32f7_i2c_xfer_core()
1723 ret = pm_runtime_resume_and_get(i2c_dev->dev); in stm32f7_i2c_xfer_core()
1727 ret = stm32f7_i2c_wait_free_bus(i2c_dev); in stm32f7_i2c_xfer_core()
1731 stm32f7_i2c_xfer_msg(i2c_dev, msgs); in stm32f7_i2c_xfer_core()
1733 if (!i2c_dev->atomic) in stm32f7_i2c_xfer_core()
1734 time_left = wait_for_completion_timeout(&i2c_dev->complete, in stm32f7_i2c_xfer_core()
1735 i2c_dev->adap.timeout); in stm32f7_i2c_xfer_core()
1737 time_left = stm32f7_i2c_wait_polling(i2c_dev); in stm32f7_i2c_xfer_core()
1741 if (i2c_dev->use_dma) in stm32f7_i2c_xfer_core()
1750 i2c_dev->base + STM32F7_I2C_ISR); in stm32f7_i2c_xfer_core()
1755 dev_dbg(i2c_dev->dev, "Access to slave 0x%x timed out\n", in stm32f7_i2c_xfer_core()
1756 i2c_dev->msg->addr); in stm32f7_i2c_xfer_core()
1757 if (i2c_dev->use_dma) in stm32f7_i2c_xfer_core()
1759 stm32f7_i2c_wait_free_bus(i2c_dev); in stm32f7_i2c_xfer_core()
1764 pm_runtime_mark_last_busy(i2c_dev->dev); in stm32f7_i2c_xfer_core()
1765 pm_runtime_put_autosuspend(i2c_dev->dev); in stm32f7_i2c_xfer_core()
1773 struct stm32f7_i2c_dev *i2c_dev = i2c_get_adapdata(i2c_adap); in stm32f7_i2c_xfer() local
1775 i2c_dev->atomic = false; in stm32f7_i2c_xfer()
1782 struct stm32f7_i2c_dev *i2c_dev = i2c_get_adapdata(i2c_adap); in stm32f7_i2c_xfer_atomic() local
1784 i2c_dev->atomic = true; in stm32f7_i2c_xfer_atomic()
1793 struct stm32f7_i2c_dev *i2c_dev = i2c_get_adapdata(adapter); in stm32f7_i2c_smbus_xfer() local
1794 struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg; in stm32f7_i2c_smbus_xfer()
1795 struct stm32_i2c_dma *dma = i2c_dev->dma; in stm32f7_i2c_smbus_xfer()
1796 struct device *dev = i2c_dev->dev; in stm32f7_i2c_smbus_xfer()
1809 ret = stm32f7_i2c_wait_free_bus(i2c_dev); in stm32f7_i2c_smbus_xfer()
1813 ret = stm32f7_i2c_smbus_xfer_msg(i2c_dev, flags, command, data); in stm32f7_i2c_smbus_xfer()
1817 time_left = wait_for_completion_timeout(&i2c_dev->complete, in stm32f7_i2c_smbus_xfer()
1818 i2c_dev->adap.timeout); in stm32f7_i2c_smbus_xfer()
1821 if (i2c_dev->use_dma) in stm32f7_i2c_smbus_xfer()
1830 i2c_dev->base + STM32F7_I2C_ISR); in stm32f7_i2c_smbus_xfer()
1836 if (i2c_dev->use_dma) in stm32f7_i2c_smbus_xfer()
1838 stm32f7_i2c_wait_free_bus(i2c_dev); in stm32f7_i2c_smbus_xfer()
1845 ret = stm32f7_i2c_smbus_check_pec(i2c_dev); in stm32f7_i2c_smbus_xfer()
1878 static void stm32f7_i2c_enable_wakeup(struct stm32f7_i2c_dev *i2c_dev, in stm32f7_i2c_enable_wakeup() argument
1881 void __iomem *base = i2c_dev->base; in stm32f7_i2c_enable_wakeup()
1884 if (!i2c_dev->wakeup_src) in stm32f7_i2c_enable_wakeup()
1888 device_set_wakeup_enable(i2c_dev->dev, true); in stm32f7_i2c_enable_wakeup()
1891 device_set_wakeup_enable(i2c_dev->dev, false); in stm32f7_i2c_enable_wakeup()
1898 struct stm32f7_i2c_dev *i2c_dev = i2c_get_adapdata(slave->adapter); in stm32f7_i2c_reg_slave() local
1899 void __iomem *base = i2c_dev->base; in stm32f7_i2c_reg_slave()
1900 struct device *dev = i2c_dev->dev; in stm32f7_i2c_reg_slave()
1909 if (stm32f7_i2c_is_slave_busy(i2c_dev)) { in stm32f7_i2c_reg_slave()
1914 ret = stm32f7_i2c_get_free_slave_id(i2c_dev, slave, &id); in stm32f7_i2c_reg_slave()
1922 if (!stm32f7_i2c_is_slave_registered(i2c_dev)) in stm32f7_i2c_reg_slave()
1923 stm32f7_i2c_enable_wakeup(i2c_dev, true); in stm32f7_i2c_reg_slave()
1928 i2c_dev->slave[id] = slave; in stm32f7_i2c_reg_slave()
1933 oar1 = readl_relaxed(i2c_dev->base + STM32F7_I2C_OAR1); in stm32f7_i2c_reg_slave()
1942 i2c_dev->slave[id] = slave; in stm32f7_i2c_reg_slave()
1943 writel_relaxed(oar1, i2c_dev->base + STM32F7_I2C_OAR1); in stm32f7_i2c_reg_slave()
1948 oar2 = readl_relaxed(i2c_dev->base + STM32F7_I2C_OAR2); in stm32f7_i2c_reg_slave()
1957 i2c_dev->slave[id] = slave; in stm32f7_i2c_reg_slave()
1958 writel_relaxed(oar2, i2c_dev->base + STM32F7_I2C_OAR2); in stm32f7_i2c_reg_slave()
1977 if (!stm32f7_i2c_is_slave_registered(i2c_dev)) in stm32f7_i2c_reg_slave()
1978 stm32f7_i2c_enable_wakeup(i2c_dev, false); in stm32f7_i2c_reg_slave()
1988 struct stm32f7_i2c_dev *i2c_dev = i2c_get_adapdata(slave->adapter); in stm32f7_i2c_unreg_slave() local
1989 void __iomem *base = i2c_dev->base; in stm32f7_i2c_unreg_slave()
1993 ret = stm32f7_i2c_get_slave_id(i2c_dev, slave, &id); in stm32f7_i2c_unreg_slave()
1997 WARN_ON(!i2c_dev->slave[id]); in stm32f7_i2c_unreg_slave()
1999 ret = pm_runtime_resume_and_get(i2c_dev->dev); in stm32f7_i2c_unreg_slave()
2011 i2c_dev->slave[id] = NULL; in stm32f7_i2c_unreg_slave()
2013 if (!stm32f7_i2c_is_slave_registered(i2c_dev)) { in stm32f7_i2c_unreg_slave()
2014 stm32f7_i2c_disable_irq(i2c_dev, STM32F7_I2C_ALL_IRQ_MASK); in stm32f7_i2c_unreg_slave()
2015 stm32f7_i2c_enable_wakeup(i2c_dev, false); in stm32f7_i2c_unreg_slave()
2018 pm_runtime_mark_last_busy(i2c_dev->dev); in stm32f7_i2c_unreg_slave()
2019 pm_runtime_put_autosuspend(i2c_dev->dev); in stm32f7_i2c_unreg_slave()
2024 static int stm32f7_i2c_write_fm_plus_bits(struct stm32f7_i2c_dev *i2c_dev, in stm32f7_i2c_write_fm_plus_bits() argument
2029 if (i2c_dev->bus_rate <= I2C_MAX_FAST_MODE_FREQ || in stm32f7_i2c_write_fm_plus_bits()
2030 (!i2c_dev->setup.fmp_cr1_bit && IS_ERR_OR_NULL(i2c_dev->regmap))) in stm32f7_i2c_write_fm_plus_bits()
2034 if (i2c_dev->setup.fmp_cr1_bit) { in stm32f7_i2c_write_fm_plus_bits()
2036 stm32f7_i2c_set_bits(i2c_dev->base + STM32F7_I2C_CR1, STM32_I2C_CR1_FMP); in stm32f7_i2c_write_fm_plus_bits()
2038 stm32f7_i2c_clr_bits(i2c_dev->base + STM32F7_I2C_CR1, STM32_I2C_CR1_FMP); in stm32f7_i2c_write_fm_plus_bits()
2040 if (i2c_dev->fmp_sreg == i2c_dev->fmp_creg) in stm32f7_i2c_write_fm_plus_bits()
2041 ret = regmap_update_bits(i2c_dev->regmap, i2c_dev->fmp_sreg, in stm32f7_i2c_write_fm_plus_bits()
2042 i2c_dev->fmp_mask, enable ? i2c_dev->fmp_mask : 0); in stm32f7_i2c_write_fm_plus_bits()
2044 ret = regmap_write(i2c_dev->regmap, in stm32f7_i2c_write_fm_plus_bits()
2045 enable ? i2c_dev->fmp_sreg : i2c_dev->fmp_creg, in stm32f7_i2c_write_fm_plus_bits()
2046 i2c_dev->fmp_mask); in stm32f7_i2c_write_fm_plus_bits()
2053 struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_setup_fm_plus_bits() argument
2058 i2c_dev->regmap = syscon_regmap_lookup_by_phandle(np, "st,syscfg-fmp"); in stm32f7_i2c_setup_fm_plus_bits()
2059 if (IS_ERR(i2c_dev->regmap)) in stm32f7_i2c_setup_fm_plus_bits()
2064 &i2c_dev->fmp_sreg); in stm32f7_i2c_setup_fm_plus_bits()
2068 i2c_dev->fmp_creg = i2c_dev->fmp_sreg + in stm32f7_i2c_setup_fm_plus_bits()
2069 i2c_dev->setup.fmp_clr_offset; in stm32f7_i2c_setup_fm_plus_bits()
2072 &i2c_dev->fmp_mask); in stm32f7_i2c_setup_fm_plus_bits()
2075 static int stm32f7_i2c_enable_smbus_host(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_enable_smbus_host() argument
2077 struct i2c_adapter *adap = &i2c_dev->adap; in stm32f7_i2c_enable_smbus_host()
2078 void __iomem *base = i2c_dev->base; in stm32f7_i2c_enable_smbus_host()
2085 i2c_dev->host_notify_client = client; in stm32f7_i2c_enable_smbus_host()
2093 static void stm32f7_i2c_disable_smbus_host(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_disable_smbus_host() argument
2095 void __iomem *base = i2c_dev->base; in stm32f7_i2c_disable_smbus_host()
2097 if (i2c_dev->host_notify_client) { in stm32f7_i2c_disable_smbus_host()
2101 i2c_free_slave_host_notify_device(i2c_dev->host_notify_client); in stm32f7_i2c_disable_smbus_host()
2105 static int stm32f7_i2c_enable_smbus_alert(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_enable_smbus_alert() argument
2108 struct i2c_adapter *adap = &i2c_dev->adap; in stm32f7_i2c_enable_smbus_alert()
2109 struct device *dev = i2c_dev->dev; in stm32f7_i2c_enable_smbus_alert()
2110 void __iomem *base = i2c_dev->base; in stm32f7_i2c_enable_smbus_alert()
2120 i2c_dev->alert = alert; in stm32f7_i2c_enable_smbus_alert()
2128 static void stm32f7_i2c_disable_smbus_alert(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_disable_smbus_alert() argument
2130 struct stm32f7_i2c_alert *alert = i2c_dev->alert; in stm32f7_i2c_disable_smbus_alert()
2131 void __iomem *base = i2c_dev->base; in stm32f7_i2c_disable_smbus_alert()
2143 struct stm32f7_i2c_dev *i2c_dev = i2c_get_adapdata(adap); in stm32f7_i2c_func() local
2152 if (i2c_dev->smbus_mode) in stm32f7_i2c_func()
2169 struct stm32f7_i2c_dev *i2c_dev; in stm32f7_i2c_probe() local
2177 i2c_dev = devm_kzalloc(&pdev->dev, sizeof(*i2c_dev), GFP_KERNEL); in stm32f7_i2c_probe()
2178 if (!i2c_dev) in stm32f7_i2c_probe()
2186 i2c_dev->setup = *setup; in stm32f7_i2c_probe()
2188 i2c_dev->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res); in stm32f7_i2c_probe()
2189 if (IS_ERR(i2c_dev->base)) in stm32f7_i2c_probe()
2190 return PTR_ERR(i2c_dev->base); in stm32f7_i2c_probe()
2197 i2c_dev->wakeup_src = of_property_read_bool(pdev->dev.of_node, in stm32f7_i2c_probe()
2200 i2c_dev->clk = devm_clk_get_enabled(&pdev->dev, NULL); in stm32f7_i2c_probe()
2201 if (IS_ERR(i2c_dev->clk)) in stm32f7_i2c_probe()
2202 return dev_err_probe(&pdev->dev, PTR_ERR(i2c_dev->clk), in stm32f7_i2c_probe()
2214 i2c_dev->dev = &pdev->dev; in stm32f7_i2c_probe()
2220 pdev->name, i2c_dev); in stm32f7_i2c_probe()
2224 if (!i2c_dev->setup.single_it_line) { in stm32f7_i2c_probe()
2233 pdev->name, i2c_dev); in stm32f7_i2c_probe()
2238 ret = stm32f7_i2c_setup_timing(i2c_dev, &i2c_dev->setup); in stm32f7_i2c_probe()
2243 if (i2c_dev->bus_rate > I2C_MAX_FAST_MODE_FREQ) { in stm32f7_i2c_probe()
2244 if (!i2c_dev->setup.fmp_cr1_bit) { in stm32f7_i2c_probe()
2245 ret = stm32f7_i2c_setup_fm_plus_bits(pdev, i2c_dev); in stm32f7_i2c_probe()
2250 ret = stm32f7_i2c_write_fm_plus_bits(i2c_dev, true); in stm32f7_i2c_probe()
2255 adap = &i2c_dev->adap; in stm32f7_i2c_probe()
2256 i2c_set_adapdata(adap, i2c_dev); in stm32f7_i2c_probe()
2266 init_completion(&i2c_dev->complete); in stm32f7_i2c_probe()
2269 i2c_dev->dma = stm32_i2c_dma_request(i2c_dev->dev, phy_addr, in stm32f7_i2c_probe()
2272 if (IS_ERR(i2c_dev->dma)) { in stm32f7_i2c_probe()
2273 ret = PTR_ERR(i2c_dev->dma); in stm32f7_i2c_probe()
2277 dev_dbg(i2c_dev->dev, "No DMA option: fallback using interrupts\n"); in stm32f7_i2c_probe()
2278 i2c_dev->dma = NULL; in stm32f7_i2c_probe()
2281 if (i2c_dev->wakeup_src) { in stm32f7_i2c_probe()
2282 device_set_wakeup_capable(i2c_dev->dev, true); in stm32f7_i2c_probe()
2284 ret = dev_pm_set_wake_irq(i2c_dev->dev, irq_event); in stm32f7_i2c_probe()
2286 dev_err(i2c_dev->dev, "Failed to set wake up irq\n"); in stm32f7_i2c_probe()
2291 platform_set_drvdata(pdev, i2c_dev); in stm32f7_i2c_probe()
2293 pm_runtime_set_autosuspend_delay(i2c_dev->dev, in stm32f7_i2c_probe()
2295 pm_runtime_use_autosuspend(i2c_dev->dev); in stm32f7_i2c_probe()
2296 pm_runtime_set_active(i2c_dev->dev); in stm32f7_i2c_probe()
2297 pm_runtime_enable(i2c_dev->dev); in stm32f7_i2c_probe()
2301 stm32f7_i2c_hw_config(i2c_dev); in stm32f7_i2c_probe()
2303 i2c_dev->smbus_mode = of_property_read_bool(pdev->dev.of_node, "smbus"); in stm32f7_i2c_probe()
2309 if (i2c_dev->smbus_mode) { in stm32f7_i2c_probe()
2310 ret = stm32f7_i2c_enable_smbus_host(i2c_dev); in stm32f7_i2c_probe()
2312 dev_err(i2c_dev->dev, in stm32f7_i2c_probe()
2320 ret = stm32f7_i2c_enable_smbus_alert(i2c_dev); in stm32f7_i2c_probe()
2322 dev_err(i2c_dev->dev, in stm32f7_i2c_probe()
2329 dev_info(i2c_dev->dev, "STM32F7 I2C-%d bus adapter\n", adap->nr); in stm32f7_i2c_probe()
2331 pm_runtime_mark_last_busy(i2c_dev->dev); in stm32f7_i2c_probe()
2332 pm_runtime_put_autosuspend(i2c_dev->dev); in stm32f7_i2c_probe()
2337 stm32f7_i2c_disable_smbus_host(i2c_dev); in stm32f7_i2c_probe()
2343 pm_runtime_put_noidle(i2c_dev->dev); in stm32f7_i2c_probe()
2344 pm_runtime_disable(i2c_dev->dev); in stm32f7_i2c_probe()
2345 pm_runtime_set_suspended(i2c_dev->dev); in stm32f7_i2c_probe()
2346 pm_runtime_dont_use_autosuspend(i2c_dev->dev); in stm32f7_i2c_probe()
2348 if (i2c_dev->wakeup_src) in stm32f7_i2c_probe()
2349 dev_pm_clear_wake_irq(i2c_dev->dev); in stm32f7_i2c_probe()
2352 if (i2c_dev->wakeup_src) in stm32f7_i2c_probe()
2353 device_set_wakeup_capable(i2c_dev->dev, false); in stm32f7_i2c_probe()
2355 if (i2c_dev->dma) { in stm32f7_i2c_probe()
2356 stm32_i2c_dma_free(i2c_dev->dma); in stm32f7_i2c_probe()
2357 i2c_dev->dma = NULL; in stm32f7_i2c_probe()
2361 stm32f7_i2c_write_fm_plus_bits(i2c_dev, false); in stm32f7_i2c_probe()
2368 struct stm32f7_i2c_dev *i2c_dev = platform_get_drvdata(pdev); in stm32f7_i2c_remove() local
2370 stm32f7_i2c_disable_smbus_alert(i2c_dev); in stm32f7_i2c_remove()
2371 stm32f7_i2c_disable_smbus_host(i2c_dev); in stm32f7_i2c_remove()
2373 i2c_del_adapter(&i2c_dev->adap); in stm32f7_i2c_remove()
2374 pm_runtime_get_sync(i2c_dev->dev); in stm32f7_i2c_remove()
2376 if (i2c_dev->wakeup_src) { in stm32f7_i2c_remove()
2377 dev_pm_clear_wake_irq(i2c_dev->dev); in stm32f7_i2c_remove()
2382 device_init_wakeup(i2c_dev->dev, false); in stm32f7_i2c_remove()
2385 pm_runtime_put_noidle(i2c_dev->dev); in stm32f7_i2c_remove()
2386 pm_runtime_disable(i2c_dev->dev); in stm32f7_i2c_remove()
2387 pm_runtime_set_suspended(i2c_dev->dev); in stm32f7_i2c_remove()
2388 pm_runtime_dont_use_autosuspend(i2c_dev->dev); in stm32f7_i2c_remove()
2390 if (i2c_dev->dma) { in stm32f7_i2c_remove()
2391 stm32_i2c_dma_free(i2c_dev->dma); in stm32f7_i2c_remove()
2392 i2c_dev->dma = NULL; in stm32f7_i2c_remove()
2395 stm32f7_i2c_write_fm_plus_bits(i2c_dev, false); in stm32f7_i2c_remove()
2400 struct stm32f7_i2c_dev *i2c_dev = dev_get_drvdata(dev); in stm32f7_i2c_runtime_suspend() local
2402 if (!stm32f7_i2c_is_slave_registered(i2c_dev)) in stm32f7_i2c_runtime_suspend()
2403 clk_disable(i2c_dev->clk); in stm32f7_i2c_runtime_suspend()
2410 struct stm32f7_i2c_dev *i2c_dev = dev_get_drvdata(dev); in stm32f7_i2c_runtime_resume() local
2413 if (!stm32f7_i2c_is_slave_registered(i2c_dev)) { in stm32f7_i2c_runtime_resume()
2414 ret = clk_enable(i2c_dev->clk); in stm32f7_i2c_runtime_resume()
2424 static int __maybe_unused stm32f7_i2c_regs_backup(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_regs_backup() argument
2427 struct stm32f7_i2c_regs *backup_regs = &i2c_dev->backup_regs; in stm32f7_i2c_regs_backup()
2429 ret = pm_runtime_resume_and_get(i2c_dev->dev); in stm32f7_i2c_regs_backup()
2433 backup_regs->cr1 = readl_relaxed(i2c_dev->base + STM32F7_I2C_CR1); in stm32f7_i2c_regs_backup()
2434 backup_regs->cr2 = readl_relaxed(i2c_dev->base + STM32F7_I2C_CR2); in stm32f7_i2c_regs_backup()
2435 backup_regs->oar1 = readl_relaxed(i2c_dev->base + STM32F7_I2C_OAR1); in stm32f7_i2c_regs_backup()
2436 backup_regs->oar2 = readl_relaxed(i2c_dev->base + STM32F7_I2C_OAR2); in stm32f7_i2c_regs_backup()
2437 backup_regs->tmgr = readl_relaxed(i2c_dev->base + STM32F7_I2C_TIMINGR); in stm32f7_i2c_regs_backup()
2438 stm32f7_i2c_write_fm_plus_bits(i2c_dev, false); in stm32f7_i2c_regs_backup()
2440 pm_runtime_put_sync(i2c_dev->dev); in stm32f7_i2c_regs_backup()
2445 static int __maybe_unused stm32f7_i2c_regs_restore(struct stm32f7_i2c_dev *i2c_dev) in stm32f7_i2c_regs_restore() argument
2449 struct stm32f7_i2c_regs *backup_regs = &i2c_dev->backup_regs; in stm32f7_i2c_regs_restore()
2451 ret = pm_runtime_resume_and_get(i2c_dev->dev); in stm32f7_i2c_regs_restore()
2455 cr1 = readl_relaxed(i2c_dev->base + STM32F7_I2C_CR1); in stm32f7_i2c_regs_restore()
2457 stm32f7_i2c_clr_bits(i2c_dev->base + STM32F7_I2C_CR1, in stm32f7_i2c_regs_restore()
2460 writel_relaxed(backup_regs->tmgr, i2c_dev->base + STM32F7_I2C_TIMINGR); in stm32f7_i2c_regs_restore()
2462 i2c_dev->base + STM32F7_I2C_CR1); in stm32f7_i2c_regs_restore()
2464 stm32f7_i2c_set_bits(i2c_dev->base + STM32F7_I2C_CR1, in stm32f7_i2c_regs_restore()
2466 writel_relaxed(backup_regs->cr2, i2c_dev->base + STM32F7_I2C_CR2); in stm32f7_i2c_regs_restore()
2467 writel_relaxed(backup_regs->oar1, i2c_dev->base + STM32F7_I2C_OAR1); in stm32f7_i2c_regs_restore()
2468 writel_relaxed(backup_regs->oar2, i2c_dev->base + STM32F7_I2C_OAR2); in stm32f7_i2c_regs_restore()
2469 stm32f7_i2c_write_fm_plus_bits(i2c_dev, true); in stm32f7_i2c_regs_restore()
2471 pm_runtime_put_sync(i2c_dev->dev); in stm32f7_i2c_regs_restore()
2478 struct stm32f7_i2c_dev *i2c_dev = dev_get_drvdata(dev); in stm32f7_i2c_suspend() local
2481 i2c_mark_adapter_suspended(&i2c_dev->adap); in stm32f7_i2c_suspend()
2484 ret = stm32f7_i2c_regs_backup(i2c_dev); in stm32f7_i2c_suspend()
2486 i2c_mark_adapter_resumed(&i2c_dev->adap); in stm32f7_i2c_suspend()
2499 struct stm32f7_i2c_dev *i2c_dev = dev_get_drvdata(dev); in stm32f7_i2c_resume() local
2508 ret = stm32f7_i2c_regs_restore(i2c_dev); in stm32f7_i2c_resume()
2513 i2c_mark_adapter_resumed(&i2c_dev->adap); in stm32f7_i2c_resume()