3  * Helper functions for MMC regulators.
11 #include <linux/mmc/host.h>
57  * can be provided to MMC/SD/SDIO devices using the specified voltage
59  * MMC host adapter.
96  * @mmc: the host to regulate
102  * MMC host drivers may use this to enable or disable a regulator using
106 int mmc_regulator_set_ocr(struct mmc_host *mmc,  in mmc_regulator_set_ocr()  argument
117 		if (result == 0 && !mmc->regulator_enabled) {  in mmc_regulator_set_ocr()
120 				mmc->regulator_enabled = true;  in mmc_regulator_set_ocr()
122 	} else if (mmc->regulator_enabled) {  in mmc_regulator_set_ocr()
125 			mmc->regulator_enabled = false;  in mmc_regulator_set_ocr()
129 		dev_err(mmc_dev(mmc),  in mmc_regulator_set_ocr()
162  * @mmc: the host to regulate
179 int mmc_regulator_set_vqmmc(struct mmc_host *mmc, struct mmc_ios *ios)  in mmc_regulator_set_vqmmc()  argument
181 	struct device *dev = mmc_dev(mmc);  in mmc_regulator_set_vqmmc()
185 	if (IS_ERR(mmc->supply.vqmmc))  in mmc_regulator_set_vqmmc()
190 		return mmc_regulator_set_voltage_if_supported(mmc->supply.vqmmc,  in mmc_regulator_set_vqmmc()
193 		return mmc_regulator_set_voltage_if_supported(mmc->supply.vqmmc,  in mmc_regulator_set_vqmmc()
196 		ret = mmc_ocrbitnum_to_vdd(mmc->ios.vdd, &volt, &max_uV);  in mmc_regulator_set_vqmmc()
213 		ret = mmc_regulator_set_voltage_if_supported(mmc->supply.vqmmc,  in mmc_regulator_set_vqmmc()
218 		return mmc_regulator_set_voltage_if_supported(mmc->supply.vqmmc,  in mmc_regulator_set_vqmmc()
237  * @mmc: the host to regulate
245 int mmc_regulator_get_supply(struct mmc_host *mmc)  in mmc_regulator_get_supply()  argument
247 	struct device *dev = mmc_dev(mmc);  in mmc_regulator_get_supply()
250 	mmc->supply.vmmc = devm_regulator_get_optional(dev, "vmmc");  in mmc_regulator_get_supply()
251 	mmc->supply.vqmmc = devm_regulator_get_optional(dev, "vqmmc");  in mmc_regulator_get_supply()
253 	if (IS_ERR(mmc->supply.vmmc)) {  in mmc_regulator_get_supply()
254 		if (PTR_ERR(mmc->supply.vmmc) == -EPROBE_DEFER)  in mmc_regulator_get_supply()
258 		ret = mmc_regulator_get_ocrmask(mmc->supply.vmmc);  in mmc_regulator_get_supply()
260 			mmc->ocr_avail = ret;  in mmc_regulator_get_supply()
265 	if (IS_ERR(mmc->supply.vqmmc)) {  in mmc_regulator_get_supply()
266 		if (PTR_ERR(mmc->supply.vqmmc) == -EPROBE_DEFER)  in mmc_regulator_get_supply()