i2c/busses/i2c-designware-core.h

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
192  * struct dw_i2c_dev - private i2c-designware data
203  * @get_clk_rate_khz: callback to retrieve IP specific bus speed
207  * @msg_write_idx: the element index of the current tx message in the msgs array
208  * @tx_buf_len: the length of the current tx buffer
209  * @tx_buf: the current tx buffer
210  * @msg_read_idx: the element index of the current rx message in the msgs array
211  * @rx_buf_len: the length of the current rx buffer
212  * @rx_buf: the current rx buffer
213  * @msg_err: error status of the current transfer
225  * @rx_outstanding: current master-rx elements in tx fifo
228  * @ss_hcnt: standard speed HCNT value
229  * @ss_lcnt: standard speed LCNT value
230  * @fs_hcnt: fast speed HCNT value
231  * @fs_lcnt: fast speed LCNT value
234  * @hs_hcnt: high speed HCNT value
235  * @hs_lcnt: high speed LCNT value
239  *	-1 if there is no semaphore.
243  * @mode: operation mode - DW_IC_MASTER or DW_IC_SLAVE
349 	dev->status |= STATUS_ACTIVE;  in __i2c_dw_enable()
350 	regmap_write(dev->map, DW_IC_ENABLE, 1);  in __i2c_dw_enable()
355 	regmap_write(dev->map, DW_IC_ENABLE, 0);  in __i2c_dw_disable_nowait()
356 	dev->status &= ~STATUS_ACTIVE;  in __i2c_dw_disable_nowait()
362 	unsigned int val = dev->flags & ACCESS_POLLING ? 0 : intr_mask;  in __i2c_dw_write_intr_mask()
364 	regmap_write(dev->map, DW_IC_INTR_MASK, val);  in __i2c_dw_write_intr_mask()
365 	dev->sw_mask = intr_mask;  in __i2c_dw_write_intr_mask()
371 	if (!(dev->flags & ACCESS_POLLING))  in __i2c_dw_read_intr_mask()
372 		regmap_read(dev->map, DW_IC_INTR_MASK, intr_mask);  in __i2c_dw_read_intr_mask()
374 		*intr_mask = dev->sw_mask;  in __i2c_dw_read_intr_mask()
388 static inline int i2c_dw_probe_slave(struct dw_i2c_dev *dev) { return -EINVAL; }  in i2c_dw_probe_slave()
393 	if (i2c_detect_slave_mode(dev->dev))  in i2c_dw_configure()