drivers/mfd/stmfx.c

120 	int ret;
122 	ret = regmap_read(stmfx->map, STMFX_REG_SYS_CTRL, &sys_ctrl);
123 	if (ret)
124 		return ret;
209 	int n, ret;
211 	ret = regmap_read(stmfx->map, STMFX_REG_IRQ_PENDING, &pending);
212 	if (ret)
221 		ret = regmap_write(stmfx->map, STMFX_REG_IRQ_ACK, ack);
222 		if (ret)
270 	int ret;
288 	ret = regmap_write(stmfx->map, STMFX_REG_IRQ_OUT_PIN, irqoutpin);
289 	if (ret)
292 	ret = devm_request_threaded_irq(stmfx->dev, client->irq,
296 	if (ret)
306 	return ret;
311 	int ret;
313 	ret = regmap_write(stmfx->map, STMFX_REG_SYS_CTRL,
315 	if (ret)
316 		return ret;
320 	return ret;
328 	int ret;
331 	ret = PTR_ERR_OR_ZERO(stmfx->vdd);
332 	if (ret) {
334 		if (ret != -ENODEV)
335 			return dev_err_probe(&client->dev, ret, "Failed to get VDD regulator\n");
339 		ret = regulator_enable(stmfx->vdd);
340 		if (ret) {
341 			dev_err(&client->dev, "VDD enable failed: %d\n", ret);
342 			return ret;
346 	ret = regmap_read(stmfx->map, STMFX_REG_CHIP_ID, &id);
347 	if (ret) {
348 		dev_err(&client->dev, "Error reading chip ID: %d\n", ret);
365 		ret = -EINVAL;
369 	ret = regmap_bulk_read(stmfx->map, STMFX_REG_FW_VERSION_MSB,
371 	if (ret) {
372 		dev_err(&client->dev, "Error reading FW version: %d\n", ret);
379 	ret = stmfx_chip_reset(stmfx);
380 	if (ret) {
381 		dev_err(&client->dev, "Failed to reset chip: %d\n", ret);
391 	return ret;
402 		int ret;
404 		ret = regulator_disable(stmfx->vdd);
405 		if (ret)
408 				ERR_PTR(ret));
416 	int ret;
428 		ret = PTR_ERR(stmfx->map);
429 		dev_err(dev, "Failed to allocate register map: %d\n", ret);
430 		return ret;
435 	ret = stmfx_chip_init(client);
436 	if (ret) {
437 		if (ret == -ETIMEDOUT)
439 		return ret;
444 		ret = client->irq;
448 	ret = stmfx_irq_init(client);
449 	if (ret)
452 	ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
455 	if (ret)
465 	return ret;
478 	int ret;
480 	ret = regmap_raw_read(stmfx->map, STMFX_REG_SYS_CTRL,
482 	if (ret)
483 		return ret;
485 	ret = regmap_raw_read(stmfx->map, STMFX_REG_IRQ_OUT_PIN,
488 	if (ret)
489 		return ret;
502 	int ret;
505 		ret = regulator_enable(stmfx->vdd);
506 		if (ret) {
508 				"VDD enable failed: %d\n", ret);
509 			return ret;
514 	ret = stmfx_chip_reset(stmfx);
515 	if (ret) {
516 		dev_err(stmfx->dev, "Failed to reset chip: %d\n", ret);
517 		return ret;
520 	ret = regmap_raw_write(stmfx->map, STMFX_REG_SYS_CTRL,
522 	if (ret)
523 		return ret;
525 	ret = regmap_raw_write(stmfx->map, STMFX_REG_IRQ_OUT_PIN,
528 	if (ret)
529 		return ret;
531 	ret = regmap_raw_write(stmfx->map, STMFX_REG_IRQ_SRC_EN,
533 	if (ret)
534 		return ret;