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Commit a7f9b0f8 authored by qctecmdr Service's avatar qctecmdr Service Committed by Gerrit - the friendly Code Review server
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Merge "usb: phy: Add HS PHY tuning parameters to debugfs for SNPS PHY"

parents 419c49fb 1185e745

drivers/usb/phy/phy-msm-snps-hs.c

+42 −0
Original line number Diff line number Diff line
@@ -70,8 +70,12 @@ 


#define TXPREEMPAMPTUNE0(x)			(x << 6)

#define TXPREEMPAMPTUNE0_MASK			(BIT(7) | BIT(6))

#define USB2PHY_USB_PHY_PARAMETER_OVERRIDE_X0	0x6c

#define USB2PHY_USB_PHY_PARAMETER_OVERRIDE_X1	0x70

#define USB2PHY_USB_PHY_PARAMETER_OVERRIDE_X2	0x74

#define USB2PHY_USB_PHY_PARAMETER_OVERRIDE_X3	0x78

#define TXVREFTUNE0_MASK			0xF

#define PARAM_OVRD_MASK			0xFF



#define USB_HSPHY_3P3_VOL_MIN			3050000 /* uV */

#define USB_HSPHY_3P3_VOL_MAX			3300000 /* uV */
@@ -122,6 +126,10 @@ struct msm_hsphy { 
	struct dentry		*root;

	u8			txvref_tune0;

	u8			pre_emphasis;

	u8			param_ovrd0;

	u8			param_ovrd1;

	u8			param_ovrd2;

	u8			param_ovrd3;

};



static void msm_hsphy_enable_clocks(struct msm_hsphy *phy, bool on)
@@ -426,6 +434,36 @@ static int msm_hsphy_init(struct usb_phy *uphy) 
			TXVREFTUNE0_MASK, val);

	}



	if (phy->param_ovrd0) {

		msm_usb_write_readback(phy->base,

			USB2PHY_USB_PHY_PARAMETER_OVERRIDE_X0,

			PARAM_OVRD_MASK, phy->param_ovrd0);

	}



	if (phy->param_ovrd1) {

		msm_usb_write_readback(phy->base,

			USB2PHY_USB_PHY_PARAMETER_OVERRIDE_X1,

			PARAM_OVRD_MASK, phy->param_ovrd1);

	}



	if (phy->param_ovrd2) {

		msm_usb_write_readback(phy->base,

			USB2PHY_USB_PHY_PARAMETER_OVERRIDE_X2,

			PARAM_OVRD_MASK, phy->param_ovrd2);

	}



	if (phy->param_ovrd3) {

		msm_usb_write_readback(phy->base,

			USB2PHY_USB_PHY_PARAMETER_OVERRIDE_X3,

			PARAM_OVRD_MASK, phy->param_ovrd3);

	}



	dev_dbg(uphy->dev, "x0:%08x x1:%08x x2:%08x x3:%08x\n",

	readl_relaxed(phy->base + USB2PHY_USB_PHY_PARAMETER_OVERRIDE_X0),

	readl_relaxed(phy->base + USB2PHY_USB_PHY_PARAMETER_OVERRIDE_X1),

	readl_relaxed(phy->base + USB2PHY_USB_PHY_PARAMETER_OVERRIDE_X2),

	readl_relaxed(phy->base + USB2PHY_USB_PHY_PARAMETER_OVERRIDE_X3));



	if (phy->phy_rcal_reg) {

		rcal_code = readl_relaxed(phy->phy_rcal_reg) & phy->rcal_mask;
@@ -626,6 +664,10 @@ static void msm_hsphy_create_debugfs(struct msm_hsphy *phy) 
	phy->root = debugfs_create_dir(dev_name(phy->phy.dev), NULL);

	debugfs_create_x8("pre_emphasis", 0644, phy->root, &phy->pre_emphasis);

	debugfs_create_x8("txvref_tune0", 0644, phy->root, &phy->txvref_tune0);

	debugfs_create_x8("param_ovrd0", 0644, phy->root, &phy->param_ovrd0);

	debugfs_create_x8("param_ovrd1", 0644, phy->root, &phy->param_ovrd1);

	debugfs_create_x8("param_ovrd2", 0644, phy->root, &phy->param_ovrd2);

	debugfs_create_x8("param_ovrd3", 0644, phy->root, &phy->param_ovrd3);

}



static int msm_hsphy_probe(struct platform_device *pdev)