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Commit 427b10e6 authored by Can Guo's avatar Can Guo
Browse files

phy: qcom-ufs: separate out 2 lanes configuration 



Some platforms have 2 UFS PHY instances, one instance supports 2-lane while
other instance supports only 1-lane. This change separates out the 2nd lane
configuration from 1-lane configuration so that we can apply the 2nd lane
configuration only if needed.

Change-Id: Idcf8aaa8ed7a9662c0f4186e5a28d2405f8fd5fc
Signed-off-by: default avatarSubhash Jadavani <subhashj@codeaurora.org>
[cang@codeaurora.org: resolved trivial merge conflicts]
Signed-off-by: default avatarCan Guo <cang@codeaurora.org>
parent fee03581

drivers/phy/qualcomm/phy-qcom-ufs-i.h

+4 −0
Original line number Diff line number Diff line
@@ -72,6 +72,10 @@ struct ufs_qcom_phy { 
	struct ufs_qcom_phy_vreg vdda_pll;

	struct ufs_qcom_phy_vreg vdda_phy;

	struct ufs_qcom_phy_vreg vddp_ref_clk;



	/* Number of lanes available (1 or 2) for Rx/Tx */

	u32 lanes_per_direction;



	unsigned int quirks;



	/*

drivers/phy/qualcomm/phy-qcom-ufs.c

+7 −0
Original line number Diff line number Diff line
@@ -13,6 +13,8 @@ 
#define VDDP_REF_CLK_MIN_UV        1200000

#define VDDP_REF_CLK_MAX_UV        1200000



#define UFS_PHY_DEFAULT_LANES_PER_DIRECTION	1



int ufs_qcom_phy_calibrate(struct ufs_qcom_phy *ufs_qcom_phy,

			   struct ufs_qcom_phy_calibration *tbl_A,

			   int tbl_size_A,
@@ -123,6 +125,11 @@ struct phy *ufs_qcom_phy_generic_probe(struct platform_device *pdev, 
		goto out;

	}



	if (of_property_read_u32(dev->of_node, "lanes-per-direction",

				 &common_cfg->lanes_per_direction))

		common_cfg->lanes_per_direction =

			UFS_PHY_DEFAULT_LANES_PER_DIRECTION;



	/*

	 * UFS PHY power management is managed by its parent (UFS host

	 * controller) hence set the no runtime PM callbacks flag