117 	struct slimpro_i2c_dev *ctx = to_slimpro_i2c_dev(cl);  in slimpro_i2c_rx_cb()  local
125 	if (ctx->resp_msg)  in slimpro_i2c_rx_cb()
126 		*ctx->resp_msg = ((u32 *)mssg)[1];  in slimpro_i2c_rx_cb()
128 	if (ctx->mbox_client.tx_block)  in slimpro_i2c_rx_cb()
129 		complete(&ctx->rd_complete);  in slimpro_i2c_rx_cb()
132 static int start_i2c_msg_xfer(struct slimpro_i2c_dev *ctx)  in start_i2c_msg_xfer()  argument
134 	if (ctx->mbox_client.tx_block) {  in start_i2c_msg_xfer()
135 		if (!wait_for_completion_timeout(&ctx->rd_complete,  in start_i2c_msg_xfer()
141 	if (*ctx->resp_msg == 0xffffffff)  in start_i2c_msg_xfer()
147 static int slimpro_i2c_rd(struct slimpro_i2c_dev *ctx, u32 chip,  in slimpro_i2c_rd()  argument
158 	ctx->resp_msg = data;  in slimpro_i2c_rd()
159 	rc = mbox_send_message(ctx->mbox_chan, &msg);  in slimpro_i2c_rd()
163 	rc = start_i2c_msg_xfer(ctx);  in slimpro_i2c_rd()
165 	ctx->resp_msg = NULL;  in slimpro_i2c_rd()
169 static int slimpro_i2c_wr(struct slimpro_i2c_dev *ctx, u32 chip,  in slimpro_i2c_wr()  argument
180 	ctx->resp_msg = msg;  in slimpro_i2c_wr()
182 	rc = mbox_send_message(ctx->mbox_chan, &msg);  in slimpro_i2c_wr()
186 	rc = start_i2c_msg_xfer(ctx);  in slimpro_i2c_wr()
188 	ctx->resp_msg = NULL;  in slimpro_i2c_wr()
192 static int slimpro_i2c_blkrd(struct slimpro_i2c_dev *ctx, u32 chip, u32 addr,  in slimpro_i2c_blkrd()  argument
200 	paddr = dma_map_single(ctx->dev, ctx->dma_buffer, readlen, DMA_FROM_DEVICE);  in slimpro_i2c_blkrd()
201 	if (dma_mapping_error(ctx->dev, paddr)) {  in slimpro_i2c_blkrd()
202 		dev_err(&ctx->adapter.dev, "Error in mapping dma buffer %p\n",  in slimpro_i2c_blkrd()
203 			ctx->dma_buffer);  in slimpro_i2c_blkrd()
215 	ctx->resp_msg = msg;  in slimpro_i2c_blkrd()
217 	rc = mbox_send_message(ctx->mbox_chan, &msg);  in slimpro_i2c_blkrd()
221 	rc = start_i2c_msg_xfer(ctx);  in slimpro_i2c_blkrd()
224 	memcpy(data, ctx->dma_buffer, readlen);  in slimpro_i2c_blkrd()
227 	dma_unmap_single(ctx->dev, paddr, readlen, DMA_FROM_DEVICE);  in slimpro_i2c_blkrd()
229 	ctx->resp_msg = NULL;  in slimpro_i2c_blkrd()
233 static int slimpro_i2c_blkwr(struct slimpro_i2c_dev *ctx, u32 chip,  in slimpro_i2c_blkwr()  argument
241 	memcpy(ctx->dma_buffer, data, writelen);  in slimpro_i2c_blkwr()
242 	paddr = dma_map_single(ctx->dev, ctx->dma_buffer, writelen,  in slimpro_i2c_blkwr()
244 	if (dma_mapping_error(ctx->dev, paddr)) {  in slimpro_i2c_blkwr()
245 		dev_err(&ctx->adapter.dev, "Error in mapping dma buffer %p\n",  in slimpro_i2c_blkwr()
246 			ctx->dma_buffer);  in slimpro_i2c_blkwr()
257 	ctx->resp_msg = msg;  in slimpro_i2c_blkwr()
259 	if (ctx->mbox_client.tx_block)  in slimpro_i2c_blkwr()
260 		reinit_completion(&ctx->rd_complete);  in slimpro_i2c_blkwr()
262 	rc = mbox_send_message(ctx->mbox_chan, &msg);  in slimpro_i2c_blkwr()
266 	rc = start_i2c_msg_xfer(ctx);  in slimpro_i2c_blkwr()
269 	dma_unmap_single(ctx->dev, paddr, writelen, DMA_TO_DEVICE);  in slimpro_i2c_blkwr()
271 	ctx->resp_msg = NULL;  in slimpro_i2c_blkwr()
280 	struct slimpro_i2c_dev *ctx = i2c_get_adapdata(adap);  in xgene_slimpro_i2c_xfer()  local
287 			ret = slimpro_i2c_rd(ctx, addr, 0, 0,  in xgene_slimpro_i2c_xfer()
292 			ret = slimpro_i2c_wr(ctx, addr, command, SMBUS_CMD_LEN,  in xgene_slimpro_i2c_xfer()
299 			ret = slimpro_i2c_rd(ctx, addr, command, SMBUS_CMD_LEN,  in xgene_slimpro_i2c_xfer()
305 			ret = slimpro_i2c_wr(ctx, addr, command, SMBUS_CMD_LEN,  in xgene_slimpro_i2c_xfer()
312 			ret = slimpro_i2c_rd(ctx, addr, command, SMBUS_CMD_LEN,  in xgene_slimpro_i2c_xfer()
318 			ret = slimpro_i2c_wr(ctx, addr, command, SMBUS_CMD_LEN,  in xgene_slimpro_i2c_xfer()
325 			ret = slimpro_i2c_blkrd(ctx, addr, command,  in xgene_slimpro_i2c_xfer()
333 			ret = slimpro_i2c_blkwr(ctx, addr, command,  in xgene_slimpro_i2c_xfer()
342 			ret = slimpro_i2c_blkrd(ctx, addr,  in xgene_slimpro_i2c_xfer()
350 			ret = slimpro_i2c_blkwr(ctx, addr, command,  in xgene_slimpro_i2c_xfer()
382 	struct slimpro_i2c_dev *ctx;  in xgene_slimpro_i2c_probe()  local
387 	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);  in xgene_slimpro_i2c_probe()
388 	if (!ctx)  in xgene_slimpro_i2c_probe()
391 	ctx->dev = &pdev->dev;  in xgene_slimpro_i2c_probe()
392 	platform_set_drvdata(pdev, ctx);  in xgene_slimpro_i2c_probe()
393 	cl = &ctx->mbox_client;  in xgene_slimpro_i2c_probe()
399 	init_completion(&ctx->rd_complete);  in xgene_slimpro_i2c_probe()
402 	ctx->mbox_chan = mbox_request_channel(cl, MAILBOX_I2C_INDEX);  in xgene_slimpro_i2c_probe()
403 	if (IS_ERR(ctx->mbox_chan)) {  in xgene_slimpro_i2c_probe()
405 		return PTR_ERR(ctx->mbox_chan);  in xgene_slimpro_i2c_probe()
413 	adapter = &ctx->adapter;  in xgene_slimpro_i2c_probe()
418 	i2c_set_adapdata(adapter, ctx);  in xgene_slimpro_i2c_probe()
422 		mbox_free_channel(ctx->mbox_chan);  in xgene_slimpro_i2c_probe()
432 	struct slimpro_i2c_dev *ctx = platform_get_drvdata(pdev);  in xgene_slimpro_i2c_remove()  local
434 	i2c_del_adapter(&ctx->adapter);  in xgene_slimpro_i2c_remove()
436 	mbox_free_channel(ctx->mbox_chan);  in xgene_slimpro_i2c_remove()