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Commit 63f03c10 authored by Can Guo's avatar Can Guo
Browse files

scsi: ufs: tune host unipro attribute PA_PEERRXHSADAPTINITIAL 



During power mode change, UFS host Unipro attribute PA_PEERRXHSADAPTINITIAL
should be set to the value of M-PHY attribute
RX_HS_ADAPT_INITIAL_CAPABILITY read from its peer UFS device.

Change-Id: I67f196babe584254add7f4805c7568dd0443904e
Signed-off-by: default avatarCan Guo <cang@codeaurora.org>
parent cdbe2d3e

drivers/scsi/ufs/ufshcd.c

+13 −1
Original line number Diff line number Diff line
@@ -5446,6 +5446,7 @@ int ufshcd_change_power_mode(struct ufs_hba *hba, 
			     struct ufs_pa_layer_attr *pwr_mode)

{

	int ret = 0;

	u32 peer_rx_hs_adapt_initial_cap;



	/* if already configured to the requested pwr_mode */

	if (!hba->restore_needed &&
@@ -5496,8 +5497,19 @@ int ufshcd_change_power_mode(struct ufs_hba *hba, 
						pwr_mode->hs_rate);



	if (pwr_mode->gear_tx == UFS_HS_G4) {

		ret = ufshcd_dme_peer_get(hba,

				 UIC_ARG_MIB_SEL(RX_HS_ADAPT_INITIAL_CAPABILITY,

					UIC_ARG_MPHY_RX_GEN_SEL_INDEX(0)),

				    &peer_rx_hs_adapt_initial_cap);

		if (ret) {

			dev_err(hba->dev,

				"%s: RX_HS_ADAPT_INITIAL_CAP get failed %d\n",

				__func__, ret);

			peer_rx_hs_adapt_initial_cap =

						PA_PEERRXHSADAPTINITIAL_Default;

		}

		ret = ufshcd_dme_set(hba, UIC_ARG_MIB(PA_PEERRXHSADAPTINITIAL),

				     PA_PEERRXHSADAPTINITIAL_Default);

				     peer_rx_hs_adapt_initial_cap);

		/* INITIAL ADAPT */

		ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TXHSADAPTTYPE),

			       PA_INITIAL_ADAPT);