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Commit a8d1ba3e authored by Subhash Jadavani's avatar Subhash Jadavani
Browse files

scsi: ufs: ignore unavailability of VCCQ for bActiveICCLevel setting 



VCCQ rail is optional for removable UFS card and also most of the
vendors don't use this rail for embedded UFS devices as well. So
it is normal that VCCQ rail may not be provided for given platform.

This change ignores the unavailability of VCCQ rail for bActiveICCLevel
setting.

Change-Id: Ia9a4e0c65c00b551242f6adbd463e264a1777991
Signed-off-by: default avatarSubhash Jadavani <subhashj@codeaurora.org>
parent 8a93dbde

drivers/scsi/ufs/ufshcd.c

+10 −7
Original line number Diff line number Diff line
@@ -6494,23 +6494,26 @@ static u32 ufshcd_get_max_icc_level(int sup_curr_uA, u32 start_scan, char *buff) 
}



/**

 * ufshcd_calc_icc_level - calculate the max ICC level

 * ufshcd_find_max_sup_active_icc_level - find the max ICC level

 * In case regulators are not initialized we'll return 0

 * @hba: per-adapter instance

 * @desc_buf: power descriptor buffer to extract ICC levels from.

 * @len: length of desc_buff

 *

 * Returns calculated ICC level

 * Returns calculated max ICC level

 */

static u32 ufshcd_find_max_sup_active_icc_level(struct ufs_hba *hba,

							u8 *desc_buf, int len)

{

	u32 icc_level = 0;



	if (!hba->vreg_info.vcc || !hba->vreg_info.vccq ||

						!hba->vreg_info.vccq2) {

		dev_err(hba->dev,

			"%s: Regulator capability was not set, actvIccLevel=%d",

	/*

	 * VCCQ rail is optional for removable UFS card and also most of the

	 * vendors don't use this rail for embedded UFS devices as well. So

	 * it is normal that VCCQ rail may not be provided for given platform.

	 */

	if (!hba->vreg_info.vcc || !hba->vreg_info.vccq2) {

		dev_err(hba->dev, "%s: Regulator capability was not set, bActiveICCLevel=%d\n",

			__func__, icc_level);

		goto out;

	}