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Commit 861fa3b8 authored by Yaniv Gardi's avatar Yaniv Gardi
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scsi: ufs: disable LCC configuration 



LCC configuration that is needed for optical connections, is not needed
when working with UFS devices. This values can be disable in all tx
connected lanes and in both: unipro and the device

Change-Id: I3c94600dad0aaade87eb976b6296a284d10aff93
Signed-off-by: default avatarYaniv Gardi <ygardi@codeaurora.org>
parent 6badacdb

drivers/scsi/ufs/ufshcd.c

+24 −2
Original line number Diff line number Diff line
@@ -2367,8 +2367,30 @@ static int ufshcd_link_startup(struct ufs_hba *hba) 
		/* failed to get the link up... retire */

		goto out;

	} else {

		ufshcd_dme_set(hba, UIC_ARG_MIB(TX_LCC_ENABLE), 0);

		ufshcd_dme_set(hba, UIC_ARG_MIB(TX_LCC_ENABLE), 1);

		int device_tx_lanes;

		int hc_tx_lanes;

		int i;



		ufshcd_dme_get(hba,

			UIC_ARG_MIB(PA_CONNECTEDTXDATALANES), &hc_tx_lanes);



		ufshcd_dme_peer_get(hba,

			UIC_ARG_MIB(PA_CONNECTEDTXDATALANES),

						&device_tx_lanes);



		for (i = 0; i < hc_tx_lanes; ++i)

			ufshcd_dme_set(hba,

				UIC_ARG_MIB_SEL(TX_LCC_ENABLE, i), 0);



		for (i = 0; i < device_tx_lanes; ++i)

			ufshcd_dme_peer_st_set(hba,

				UIC_ARG_MIB_SEL(TX_LCC_ENABLE, i), 0);



		/*

		 * some devices might need a power mode change to apply

		 * the above values

		 */

		ufshcd_uic_change_pwr_mode(hba, UNCHANGED << 4 | UNCHANGED);

	}



	/* Include any host controller configuration via UIC commands */