Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit cba7e83e authored by Sahitya Tummala's avatar Sahitya Tummala Committed by Xiaonian Wang
Browse files

host: sdhci: fix current caps when there is no host->vmmc 



When the regulators are not managed by SDHCI host driver (i.e.,
when host->vmmc and host->vmmcq are absent), get the regulator
current capabilities through a new host op get_current_limit().

Change-Id: I097349ad4d2e8ffbafbeb5fe65910894fe909bd6
Signed-off-by: default avatarSahitya Tummala <stummala@codeaurora.org>
Signed-off-by: default avatarSayali Lokhande <sayalil@codeaurora.org>
parent c1e97551

drivers/mmc/host/sdhci.c

+8 −3
Original line number Diff line number Diff line
@@ -4172,10 +4172,15 @@ int sdhci_setup_host(struct sdhci_host *host) 
	 * value.

	 */

	max_current_caps = sdhci_readl(host, SDHCI_MAX_CURRENT);

	if (!max_current_caps && !IS_ERR(mmc->supply.vmmc)) {

		int curr = regulator_get_current_limit(mmc->supply.vmmc);

		if (curr > 0) {

	if (!max_current_caps) {

		u32 curr = 0;



		if (!IS_ERR(mmc->supply.vmmc))

			curr = regulator_get_current_limit(mmc->supply.vmmc);

		else if (host->ops->get_current_limit)

			curr = host->ops->get_current_limit(host);



		if (curr > 0) {

			/* convert to SDHCI_MAX_CURRENT format */

			curr = curr/1000;  /* convert to mA */

			curr = curr/SDHCI_MAX_CURRENT_MULTIPLIER;

drivers/mmc/host/sdhci.h

+1 −0
Original line number Diff line number Diff line
@@ -696,6 +696,7 @@ struct sdhci_ops { 
	void	(*init)(struct sdhci_host *host);

	void	(*pre_req)(struct sdhci_host *host, struct mmc_request *req);

	void	(*post_req)(struct sdhci_host *host, struct mmc_request *req);

	unsigned int	(*get_current_limit)(struct sdhci_host *host);

};



#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS