1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * OpenFirmware bindings for the MMC-over-SPI driver
19 #include <linux/mmc/core.h>
20 #include <linux/mmc/host.h>
31 	return container_of(dev->platform_data, struct of_mmc_spi, pdata);  in to_of_mmc_spi()
35 			   irqreturn_t (*irqhandler)(int, void *), void *mmc)  in of_mmc_spi_init()  argument
39 	return request_threaded_irq(oms->detect_irq, NULL, irqhandler,  in of_mmc_spi_init()
40 					IRQF_ONESHOT, dev_name(dev), mmc);  in of_mmc_spi_init()
43 static void of_mmc_spi_exit(struct device *dev, void *mmc)  in of_mmc_spi_exit()  argument
47 	free_irq(oms->detect_irq, mmc);  in of_mmc_spi_exit()
52 	struct mmc_host *mmc = dev_get_drvdata(&spi->dev);  in mmc_spi_get_pdata()  local
53 	struct device *dev = &spi->dev;  in mmc_spi_get_pdata()
56 	if (dev->platform_data || !dev_fwnode(dev))  in mmc_spi_get_pdata()
57 		return dev->platform_data;  in mmc_spi_get_pdata()
63 	if (mmc_of_parse_voltage(mmc, &oms->pdata.ocr_mask) < 0)  in mmc_spi_get_pdata()
66 	oms->detect_irq = spi->irq;  in mmc_spi_get_pdata()
67 	if (oms->detect_irq > 0) {  in mmc_spi_get_pdata()
68 		oms->pdata.init = of_mmc_spi_init;  in mmc_spi_get_pdata()
69 		oms->pdata.exit = of_mmc_spi_exit;  in mmc_spi_get_pdata()
71 		oms->pdata.caps |= MMC_CAP_NEEDS_POLL;  in mmc_spi_get_pdata()
73 	if (device_property_read_bool(dev, "cap-sd-highspeed"))  in mmc_spi_get_pdata()
74 		oms->pdata.caps |= MMC_CAP_SD_HIGHSPEED;  in mmc_spi_get_pdata()
75 	if (device_property_read_bool(dev, "cap-mmc-highspeed"))  in mmc_spi_get_pdata()
76 		oms->pdata.caps |= MMC_CAP_MMC_HIGHSPEED;  in mmc_spi_get_pdata()
78 	dev->platform_data = &oms->pdata;  in mmc_spi_get_pdata()
79 	return dev->platform_data;  in mmc_spi_get_pdata()
88 	struct device *dev = &spi->dev;  in mmc_spi_put_pdata()
91 	if (!dev->platform_data || !dev_fwnode(dev))  in mmc_spi_put_pdata()
95 	dev->platform_data = NULL;  in mmc_spi_put_pdata()