1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
7 #include <linux/dma-mapping.h>
8 #include <linux/dma/qcom-gpi-dma.h>
17 #include <linux/qcom-geni-se.h>
109 	[GP_IRQ0] = {-EIO, "Unknown I2C err GP_IRQ0"},
110 	[NACK] = {-ENXIO, "NACK: slv unresponsive, check its power/reset-ln"},
111 	[GP_IRQ2] = {-EIO, "Unknown I2C err GP IRQ2"},
112 	[BUS_PROTO] = {-EPROTO, "Bus proto err, noisy/unexpected start/stop"},
113 	[ARB_LOST] = {-EAGAIN, "Bus arbitration lost, clock line undriveable"},
114 	[GP_IRQ5] = {-EIO, "Unknown I2C err GP IRQ5"},
115 	[GENI_OVERRUN] = {-EIO, "Cmd overrun, check GENI cmd-state machine"},
116 	[GENI_ILLEGAL_CMD] = {-EIO, "Illegal cmd, check GENI cmd-state machine"},
117 	[GENI_ABORT_DONE] = {-ETIMEDOUT, "Abort after timeout successful"},
118 	[GENI_TIMEOUT] = {-ETIMEDOUT, "I2C TXN timed out"},
153 		if (itr->clk_freq_out == gi2c->clk_freq_out) {  in geni_i2c_clk_map_idx()
154 			gi2c->clk_fld = itr;  in geni_i2c_clk_map_idx()
158 	return -EINVAL;  in geni_i2c_clk_map_idx()
163 	const struct geni_i2c_clk_fld *itr = gi2c->clk_fld;  in qcom_geni_i2c_conf()
166 	writel_relaxed(0, gi2c->se.base + SE_GENI_CLK_SEL);  in qcom_geni_i2c_conf()
168 	val = (itr->clk_div << CLK_DIV_SHFT) | SER_CLK_EN;  in qcom_geni_i2c_conf()
169 	writel_relaxed(val, gi2c->se.base + GENI_SER_M_CLK_CFG);  in qcom_geni_i2c_conf()
171 	val = itr->t_high_cnt << HIGH_COUNTER_SHFT;  in qcom_geni_i2c_conf()
172 	val |= itr->t_low_cnt << LOW_COUNTER_SHFT;  in qcom_geni_i2c_conf()
173 	val |= itr->t_cycle_cnt;  in qcom_geni_i2c_conf()
174 	writel_relaxed(val, gi2c->se.base + SE_I2C_SCL_COUNTERS);  in qcom_geni_i2c_conf()
179 	u32 m_cmd = readl_relaxed(gi2c->se.base + SE_GENI_M_CMD0);  in geni_i2c_err_misc()
180 	u32 m_stat = readl_relaxed(gi2c->se.base + SE_GENI_M_IRQ_STATUS);  in geni_i2c_err_misc()
181 	u32 geni_s = readl_relaxed(gi2c->se.base + SE_GENI_STATUS);  in geni_i2c_err_misc()
182 	u32 geni_ios = readl_relaxed(gi2c->se.base + SE_GENI_IOS);  in geni_i2c_err_misc()
183 	u32 dma = readl_relaxed(gi2c->se.base + SE_GENI_DMA_MODE_EN);  in geni_i2c_err_misc()
187 		rx_st = readl_relaxed(gi2c->se.base + SE_DMA_RX_IRQ_STAT);  in geni_i2c_err_misc()
188 		tx_st = readl_relaxed(gi2c->se.base + SE_DMA_TX_IRQ_STAT);  in geni_i2c_err_misc()
190 		rx_st = readl_relaxed(gi2c->se.base + SE_GENI_RX_FIFO_STATUS);  in geni_i2c_err_misc()
191 		tx_st = readl_relaxed(gi2c->se.base + SE_GENI_TX_FIFO_STATUS);  in geni_i2c_err_misc()
193 	dev_dbg(gi2c->se.dev, "DMA:%d tx_stat:0x%x, rx_stat:0x%x, irq-stat:0x%x\n",  in geni_i2c_err_misc()
195 	dev_dbg(gi2c->se.dev, "m_cmd:0x%x, geni_status:0x%x, geni_ios:0x%x\n",  in geni_i2c_err_misc()
201 	if (!gi2c->err)  in geni_i2c_err()
202 		gi2c->err = gi2c_log[err].err;  in geni_i2c_err()
203 	if (gi2c->cur)  in geni_i2c_err()
204 		dev_dbg(gi2c->se.dev, "len:%d, slv-addr:0x%x, RD/WR:%d\n",  in geni_i2c_err()
205 			gi2c->cur->len, gi2c->cur->addr, gi2c->cur->flags);  in geni_i2c_err()
209 		gi2c->abort_done = true;  in geni_i2c_err()
213 		dev_dbg(gi2c->se.dev, "%s\n", gi2c_log[err].msg);  in geni_i2c_err()
216 		dev_err(gi2c->se.dev, "%s\n", gi2c_log[err].msg);  in geni_i2c_err()
225 	void __iomem *base = gi2c->se.base;  in geni_i2c_irq()
235 	spin_lock(&gi2c->lock);  in geni_i2c_irq()
241 	cur = gi2c->cur;  in geni_i2c_irq()
265 		dev_dbg(gi2c->se.dev, "i2c dma tx:0x%x, dma rx:0x%x\n",  in geni_i2c_irq()
267 	} else if (cur->flags & I2C_M_RD &&  in geni_i2c_irq()
274 			while (gi2c->cur_rd < cur->len && p < sizeof(val)) {  in geni_i2c_irq()
275 				cur->buf[gi2c->cur_rd++] = val & 0xff;  in geni_i2c_irq()
279 			if (gi2c->cur_rd == cur->len)  in geni_i2c_irq()
282 	} else if (!(cur->flags & I2C_M_RD) &&  in geni_i2c_irq()
284 		for (j = 0; j < gi2c->tx_wm; j++) {  in geni_i2c_irq()
289 			while (gi2c->cur_wr < cur->len && p < sizeof(val)) {  in geni_i2c_irq()
290 				temp = cur->buf[gi2c->cur_wr++];  in geni_i2c_irq()
296 			if (gi2c->cur_wr == cur->len) {  in geni_i2c_irq()
311 	/* if this is err with done-bit not set, handle that through timeout. */  in geni_i2c_irq()
315 		complete(&gi2c->done);  in geni_i2c_irq()
317 	spin_unlock(&gi2c->lock);  in geni_i2c_irq()
327 	spin_lock_irqsave(&gi2c->lock, flags);  in geni_i2c_abort_xfer()
329 	gi2c->cur = NULL;  in geni_i2c_abort_xfer()
330 	gi2c->abort_done = false;  in geni_i2c_abort_xfer()
331 	geni_se_abort_m_cmd(&gi2c->se);  in geni_i2c_abort_xfer()
332 	spin_unlock_irqrestore(&gi2c->lock, flags);  in geni_i2c_abort_xfer()
335 		time_left = wait_for_completion_timeout(&gi2c->done, time_left);  in geni_i2c_abort_xfer()
336 	} while (!gi2c->abort_done && time_left);  in geni_i2c_abort_xfer()
339 		dev_err(gi2c->se.dev, "Timeout abort_m_cmd\n");  in geni_i2c_abort_xfer()
347 	writel_relaxed(1, gi2c->se.base + SE_DMA_RX_FSM_RST);  in geni_i2c_rx_fsm_rst()
349 		time_left = wait_for_completion_timeout(&gi2c->done, time_left);  in geni_i2c_rx_fsm_rst()
350 		val = readl_relaxed(gi2c->se.base + SE_DMA_RX_IRQ_STAT);  in geni_i2c_rx_fsm_rst()
354 		dev_err(gi2c->se.dev, "Timeout resetting RX_FSM\n");  in geni_i2c_rx_fsm_rst()
362 	writel_relaxed(1, gi2c->se.base + SE_DMA_TX_FSM_RST);  in geni_i2c_tx_fsm_rst()
364 		time_left = wait_for_completion_timeout(&gi2c->done, time_left);  in geni_i2c_tx_fsm_rst()
365 		val = readl_relaxed(gi2c->se.base + SE_DMA_TX_IRQ_STAT);  in geni_i2c_tx_fsm_rst()
369 		dev_err(gi2c->se.dev, "Timeout resetting TX_FSM\n");  in geni_i2c_tx_fsm_rst()
375 	gi2c->cur_rd = 0;  in geni_i2c_rx_msg_cleanup()
376 	if (gi2c->dma_buf) {  in geni_i2c_rx_msg_cleanup()
377 		if (gi2c->err)  in geni_i2c_rx_msg_cleanup()
379 		geni_se_rx_dma_unprep(&gi2c->se, gi2c->dma_addr, gi2c->xfer_len);  in geni_i2c_rx_msg_cleanup()
380 		i2c_put_dma_safe_msg_buf(gi2c->dma_buf, cur, !gi2c->err);  in geni_i2c_rx_msg_cleanup()
387 	gi2c->cur_wr = 0;  in geni_i2c_tx_msg_cleanup()
388 	if (gi2c->dma_buf) {  in geni_i2c_tx_msg_cleanup()
389 		if (gi2c->err)  in geni_i2c_tx_msg_cleanup()
391 		geni_se_tx_dma_unprep(&gi2c->se, gi2c->dma_addr, gi2c->xfer_len);  in geni_i2c_tx_msg_cleanup()
392 		i2c_put_dma_safe_msg_buf(gi2c->dma_buf, cur, !gi2c->err);  in geni_i2c_tx_msg_cleanup()
402 	struct geni_se *se = &gi2c->se;  in geni_i2c_rx_one_msg()
403 	size_t len = msg->len;  in geni_i2c_rx_one_msg()
412 	writel_relaxed(len, se->base + SE_I2C_RX_TRANS_LEN);  in geni_i2c_rx_one_msg()
420 		gi2c->xfer_len = len;  in geni_i2c_rx_one_msg()
421 		gi2c->dma_addr = rx_dma;  in geni_i2c_rx_one_msg()
422 		gi2c->dma_buf = dma_buf;  in geni_i2c_rx_one_msg()
425 	cur = gi2c->cur;  in geni_i2c_rx_one_msg()
426 	time_left = wait_for_completion_timeout(&gi2c->done, XFER_TIMEOUT);  in geni_i2c_rx_one_msg()
432 	return gi2c->err;  in geni_i2c_rx_one_msg()
441 	struct geni_se *se = &gi2c->se;  in geni_i2c_tx_one_msg()
442 	size_t len = msg->len;  in geni_i2c_tx_one_msg()
451 	writel_relaxed(len, se->base + SE_I2C_TX_TRANS_LEN);  in geni_i2c_tx_one_msg()
459 		gi2c->xfer_len = len;  in geni_i2c_tx_one_msg()
460 		gi2c->dma_addr = tx_dma;  in geni_i2c_tx_one_msg()
461 		gi2c->dma_buf = dma_buf;  in geni_i2c_tx_one_msg()
465 		writel_relaxed(1, se->base + SE_GENI_TX_WATERMARK_REG);  in geni_i2c_tx_one_msg()
467 	cur = gi2c->cur;  in geni_i2c_tx_one_msg()
468 	time_left = wait_for_completion_timeout(&gi2c->done, XFER_TIMEOUT);  in geni_i2c_tx_one_msg()
474 	return gi2c->err;  in geni_i2c_tx_one_msg()
481 	if (result->result != DMA_TRANS_NOERROR) {  in i2c_gpi_cb_result()
482 		dev_err(gi2c->se.dev, "DMA txn failed:%d\n", result->result);  in i2c_gpi_cb_result()
483 		gi2c->err = -EIO;  in i2c_gpi_cb_result()
484 	} else if (result->residue) {  in i2c_gpi_cb_result()
485 		dev_dbg(gi2c->se.dev, "DMA xfer has pending: %d\n", result->residue);  in i2c_gpi_cb_result()
488 	complete(&gi2c->done);  in i2c_gpi_cb_result()
496 		dma_unmap_single(gi2c->se.dev->parent, tx_addr, msg->len, DMA_TO_DEVICE);  in geni_i2c_gpi_unmap()
497 		i2c_put_dma_safe_msg_buf(tx_buf, msg, !gi2c->err);  in geni_i2c_gpi_unmap()
501 		dma_unmap_single(gi2c->se.dev->parent, rx_addr, msg->len, DMA_FROM_DEVICE);  in geni_i2c_gpi_unmap()
502 		i2c_put_dma_safe_msg_buf(rx_buf, msg, !gi2c->err);  in geni_i2c_gpi_unmap()
507 			struct dma_slave_config *config, dma_addr_t *dma_addr_p,  in geni_i2c_gpi()  argument
519 	peripheral = config->peripheral_config;  in geni_i2c_gpi()
523 		return -ENOMEM;  in geni_i2c_gpi()
530 	addr = dma_map_single(gi2c->se.dev->parent, dma_buf, msg->len, map_dirn);  in geni_i2c_gpi()
531 	if (dma_mapping_error(gi2c->se.dev->parent, addr)) {  in geni_i2c_gpi()
533 		return -ENOMEM;  in geni_i2c_gpi()
537 	peripheral->rx_len = msg->len;  in geni_i2c_gpi()
538 	peripheral->op = op;  in geni_i2c_gpi()
540 	ret = dmaengine_slave_config(dma_chan, config);  in geni_i2c_gpi()
542 		dev_err(gi2c->se.dev, "dma config error: %d for op:%d\n", ret, op);  in geni_i2c_gpi()
546 	peripheral->set_config = 0;  in geni_i2c_gpi()
547 	peripheral->multi_msg = true;  in geni_i2c_gpi()
555 	desc = dmaengine_prep_slave_single(dma_chan, addr, msg->len, dma_dirn, flags);  in geni_i2c_gpi()
557 		dev_err(gi2c->se.dev, "prep_slave_sg failed\n");  in geni_i2c_gpi()
558 		ret = -EIO;  in geni_i2c_gpi()
562 	desc->callback_result = i2c_gpi_cb_result;  in geni_i2c_gpi()
563 	desc->callback_param = gi2c;  in geni_i2c_gpi()
572 	dma_unmap_single(gi2c->se.dev->parent, addr, msg->len, map_dirn);  in geni_i2c_gpi()
579 	struct dma_slave_config config = {};  in geni_i2c_gpi_xfer()  local
584 	const struct geni_i2c_clk_fld *itr = gi2c->clk_fld;  in geni_i2c_gpi_xfer()
586 	config.peripheral_config = &peripheral;  in geni_i2c_gpi_xfer()
587 	config.peripheral_size = sizeof(peripheral);  in geni_i2c_gpi_xfer()
590 	peripheral.cycle_count = itr->t_cycle_cnt;  in geni_i2c_gpi_xfer()
591 	peripheral.high_count = itr->t_high_cnt;  in geni_i2c_gpi_xfer()
592 	peripheral.low_count = itr->t_low_cnt;  in geni_i2c_gpi_xfer()
593 	peripheral.clk_div = itr->clk_div;  in geni_i2c_gpi_xfer()
598 		gi2c->cur = &msgs[i];  in geni_i2c_gpi_xfer()
599 		gi2c->err = 0;  in geni_i2c_gpi_xfer()
600 		dev_dbg(gi2c->se.dev, "msg[%d].len:%d\n", i, gi2c->cur->len);  in geni_i2c_gpi_xfer()
603 		if (i < num - 1)  in geni_i2c_gpi_xfer()
609 			ret =  geni_i2c_gpi(gi2c, &msgs[i], &config,  in geni_i2c_gpi_xfer()
610 					    &rx_addr, &rx_buf, I2C_READ, gi2c->rx_c);  in geni_i2c_gpi_xfer()
615 		ret =  geni_i2c_gpi(gi2c, &msgs[i], &config,  in geni_i2c_gpi_xfer()
616 				    &tx_addr, &tx_buf, I2C_WRITE, gi2c->tx_c);  in geni_i2c_gpi_xfer()
621 			dma_async_issue_pending(gi2c->rx_c);  in geni_i2c_gpi_xfer()
622 		dma_async_issue_pending(gi2c->tx_c);  in geni_i2c_gpi_xfer()
624 		timeout = wait_for_completion_timeout(&gi2c->done, XFER_TIMEOUT);  in geni_i2c_gpi_xfer()
626 			dev_err(gi2c->se.dev, "I2C timeout gpi flags:%d addr:0x%x\n",  in geni_i2c_gpi_xfer()
627 				gi2c->cur->flags, gi2c->cur->addr);  in geni_i2c_gpi_xfer()
628 			gi2c->err = -ETIMEDOUT;  in geni_i2c_gpi_xfer()
631 		if (gi2c->err) {  in geni_i2c_gpi_xfer()
632 			ret = gi2c->err;  in geni_i2c_gpi_xfer()
642 	dev_err(gi2c->se.dev, "GPI transfer failed: %d\n", ret);  in geni_i2c_gpi_xfer()
643 	dmaengine_terminate_sync(gi2c->rx_c);  in geni_i2c_gpi_xfer()
644 	dmaengine_terminate_sync(gi2c->tx_c);  in geni_i2c_gpi_xfer()
655 		u32 m_param = i < (num - 1) ? STOP_STRETCH : 0;  in geni_i2c_fifo_xfer()
659 		gi2c->cur = &msgs[i];  in geni_i2c_fifo_xfer()
679 	gi2c->err = 0;  in geni_i2c_xfer()
680 	reinit_completion(&gi2c->done);  in geni_i2c_xfer()
681 	ret = pm_runtime_get_sync(gi2c->se.dev);  in geni_i2c_xfer()
683 		dev_err(gi2c->se.dev, "error turning SE resources:%d\n", ret);  in geni_i2c_xfer()
684 		pm_runtime_put_noidle(gi2c->se.dev);  in geni_i2c_xfer()
686 		pm_runtime_set_suspended(gi2c->se.dev);  in geni_i2c_xfer()
692 	if (gi2c->gpi_mode)  in geni_i2c_xfer()
697 	pm_runtime_mark_last_busy(gi2c->se.dev);  in geni_i2c_xfer()
698 	pm_runtime_put_autosuspend(gi2c->se.dev);  in geni_i2c_xfer()
699 	gi2c->cur = NULL;  in geni_i2c_xfer()
700 	gi2c->err = 0;  in geni_i2c_xfer()
724 	if (gi2c->rx_c)  in release_gpi_dma()
725 		dma_release_channel(gi2c->rx_c);  in release_gpi_dma()
727 	if (gi2c->tx_c)  in release_gpi_dma()
728 		dma_release_channel(gi2c->tx_c);  in release_gpi_dma()
735 	geni_se_select_mode(&gi2c->se, GENI_GPI_DMA);  in setup_gpi_dma()
736 	gi2c->tx_c = dma_request_chan(gi2c->se.dev, "tx");  in setup_gpi_dma()
737 	if (IS_ERR(gi2c->tx_c)) {  in setup_gpi_dma()
738 		ret = dev_err_probe(gi2c->se.dev, PTR_ERR(gi2c->tx_c),  in setup_gpi_dma()
743 	gi2c->rx_c = dma_request_chan(gi2c->se.dev, "rx");  in setup_gpi_dma()
744 	if (IS_ERR(gi2c->rx_c)) {  in setup_gpi_dma()
745 		ret = dev_err_probe(gi2c->se.dev, PTR_ERR(gi2c->rx_c),  in setup_gpi_dma()
750 	dev_dbg(gi2c->se.dev, "Grabbed GPI dma channels\n");  in setup_gpi_dma()
754 	dma_release_channel(gi2c->tx_c);  in setup_gpi_dma()
765 	struct device *dev = &pdev->dev;  in geni_i2c_probe()
769 		return -ENOMEM;  in geni_i2c_probe()
771 	gi2c->se.dev = dev;  in geni_i2c_probe()
772 	gi2c->se.wrapper = dev_get_drvdata(dev->parent);  in geni_i2c_probe()
774 	gi2c->se.base = devm_ioremap_resource(dev, res);  in geni_i2c_probe()
775 	if (IS_ERR(gi2c->se.base))  in geni_i2c_probe()
776 		return PTR_ERR(gi2c->se.base);  in geni_i2c_probe()
778 	gi2c->se.clk = devm_clk_get(dev, "se");  in geni_i2c_probe()
779 	if (IS_ERR(gi2c->se.clk) && !has_acpi_companion(dev))  in geni_i2c_probe()
780 		return PTR_ERR(gi2c->se.clk);  in geni_i2c_probe()
782 	ret = device_property_read_u32(dev, "clock-frequency",  in geni_i2c_probe()
783 				       &gi2c->clk_freq_out);  in geni_i2c_probe()
786 		gi2c->clk_freq_out = KHZ(100);  in geni_i2c_probe()
790 		ACPI_COMPANION_SET(&gi2c->adap.dev, ACPI_COMPANION(dev));  in geni_i2c_probe()
792 	gi2c->irq = platform_get_irq(pdev, 0);  in geni_i2c_probe()
793 	if (gi2c->irq < 0)  in geni_i2c_probe()
794 		return gi2c->irq;  in geni_i2c_probe()
799 			gi2c->clk_freq_out, ret);  in geni_i2c_probe()
803 	gi2c->adap.algo = &geni_i2c_algo;  in geni_i2c_probe()
804 	init_completion(&gi2c->done);  in geni_i2c_probe()
805 	spin_lock_init(&gi2c->lock);  in geni_i2c_probe()
807 	ret = devm_request_irq(dev, gi2c->irq, geni_i2c_irq, 0,  in geni_i2c_probe()
811 			gi2c->irq, ret);  in geni_i2c_probe()
814 	/* Disable the interrupt so that the system can enter low-power mode */  in geni_i2c_probe()
815 	disable_irq(gi2c->irq);  in geni_i2c_probe()
816 	i2c_set_adapdata(&gi2c->adap, gi2c);  in geni_i2c_probe()
817 	gi2c->adap.dev.parent = dev;  in geni_i2c_probe()
818 	gi2c->adap.dev.of_node = dev->of_node;  in geni_i2c_probe()
819 	strscpy(gi2c->adap.name, "Geni-I2C", sizeof(gi2c->adap.name));  in geni_i2c_probe()
821 	ret = geni_icc_get(&gi2c->se, "qup-memory");  in geni_i2c_probe()
829 	gi2c->se.icc_paths[GENI_TO_CORE].avg_bw = GENI_DEFAULT_BW;  in geni_i2c_probe()
830 	gi2c->se.icc_paths[CPU_TO_GENI].avg_bw = GENI_DEFAULT_BW;  in geni_i2c_probe()
831 	gi2c->se.icc_paths[GENI_TO_DDR].avg_bw = Bps_to_icc(gi2c->clk_freq_out);  in geni_i2c_probe()
833 	ret = geni_icc_set_bw(&gi2c->se);  in geni_i2c_probe()
837 	ret = geni_se_resources_on(&gi2c->se);  in geni_i2c_probe()
842 	proto = geni_se_read_proto(&gi2c->se);  in geni_i2c_probe()
845 		geni_se_resources_off(&gi2c->se);  in geni_i2c_probe()
846 		return -ENXIO;  in geni_i2c_probe()
849 	fifo_disable = readl_relaxed(gi2c->se.base + GENI_IF_DISABLE_RO) & FIFO_IF_DISABLE;  in geni_i2c_probe()
851 		/* FIFO is disabled, so we can only use GPI DMA */  in geni_i2c_probe()
852 		gi2c->gpi_mode = true;  in geni_i2c_probe()
855 			return dev_err_probe(dev, ret, "Failed to setup GPI DMA mode\n");  in geni_i2c_probe()
857 		dev_dbg(dev, "Using GPI DMA mode for I2C\n");  in geni_i2c_probe()
859 		gi2c->gpi_mode = false;  in geni_i2c_probe()
860 		tx_depth = geni_se_get_tx_fifo_depth(&gi2c->se);  in geni_i2c_probe()
861 		gi2c->tx_wm = tx_depth - 1;  in geni_i2c_probe()
862 		geni_se_init(&gi2c->se, gi2c->tx_wm, tx_depth);  in geni_i2c_probe()
863 		geni_se_config_packing(&gi2c->se, BITS_PER_BYTE,  in geni_i2c_probe()
866 		dev_dbg(dev, "i2c fifo/se-dma mode. fifo depth:%d\n", tx_depth);  in geni_i2c_probe()
869 	ret = geni_se_resources_off(&gi2c->se);  in geni_i2c_probe()
875 	ret = geni_icc_disable(&gi2c->se);  in geni_i2c_probe()
879 	gi2c->suspended = 1;  in geni_i2c_probe()
880 	pm_runtime_set_suspended(gi2c->se.dev);  in geni_i2c_probe()
881 	pm_runtime_set_autosuspend_delay(gi2c->se.dev, I2C_AUTO_SUSPEND_DELAY);  in geni_i2c_probe()
882 	pm_runtime_use_autosuspend(gi2c->se.dev);  in geni_i2c_probe()
883 	pm_runtime_enable(gi2c->se.dev);  in geni_i2c_probe()
885 	ret = i2c_add_adapter(&gi2c->adap);  in geni_i2c_probe()
888 		pm_runtime_disable(gi2c->se.dev);  in geni_i2c_probe()
892 	dev_dbg(dev, "Geni-I2C adaptor successfully added\n");  in geni_i2c_probe()
905 	i2c_del_adapter(&gi2c->adap);  in geni_i2c_remove()
907 	pm_runtime_disable(gi2c->se.dev);  in geni_i2c_remove()
916 	i2c_mark_adapter_suspended(&gi2c->adap);  in geni_i2c_shutdown()
924 	disable_irq(gi2c->irq);  in geni_i2c_runtime_suspend()
925 	ret = geni_se_resources_off(&gi2c->se);  in geni_i2c_runtime_suspend()
927 		enable_irq(gi2c->irq);  in geni_i2c_runtime_suspend()
931 		gi2c->suspended = 1;  in geni_i2c_runtime_suspend()
934 	return geni_icc_disable(&gi2c->se);  in geni_i2c_runtime_suspend()
942 	ret = geni_icc_enable(&gi2c->se);  in geni_i2c_runtime_resume()
946 	ret = geni_se_resources_on(&gi2c->se);  in geni_i2c_runtime_resume()
950 	enable_irq(gi2c->irq);  in geni_i2c_runtime_resume()
951 	gi2c->suspended = 0;  in geni_i2c_runtime_resume()
959 	i2c_mark_adapter_suspended(&gi2c->adap);  in geni_i2c_suspend_noirq()
961 	if (!gi2c->suspended) {  in geni_i2c_suspend_noirq()
974 	i2c_mark_adapter_resumed(&gi2c->adap);  in geni_i2c_resume_noirq()
985 	{ .compatible = "qcom,geni-i2c" },