Merge "usb: phy: qusb: Update TUNE2 parameter for better compliance results" (d384461f) · Commits · e / devices / android_kernel_xiaomi_markw

Documentation/devicetree/bindings/usb/msm-phy.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -177,6 +177,8 @@ Optional properties:
		- qcom,hold-reset: Indicates that hold QUSB PHY into reset state.
		- qcom,enable-dpdm-pulsing: enables dp and dm pulsing for PMIC driver to
		perform charger detection.
		- qcom,tune2-efuse-correction: The value to be adjusted from the higher nibble of TUNE2
		for improved rise/fall times.

		Example:
		qusb_phy: qusb@f9b39000 {

+15 −0

Original line number	Diff line number	Diff line
		@@ -140,6 +140,7 @@ struct qusb_phy {
		u32 tune2_val;
		int tune2_efuse_bit_pos;
		int tune2_efuse_num_of_bits;
		int tune2_efuse_correction;

		bool power_enabled;
		bool clocks_enabled;
		@@ -558,6 +559,17 @@ static void qusb_phy_get_tune2_param(struct qusb_phy *qphy)
		qphy->tune2_val = TUNE2_HIGH_NIBBLE_VAL(qphy->tune2_val,
		qphy->tune2_efuse_bit_pos, bit_mask);

		/* Update higher nibble of TUNE2 value for better rise/fall times */
		if (qphy->tune2_efuse_correction) {
		if (qphy->tune2_efuse_correction > 5 \|\|
		qphy->tune2_efuse_correction < -10)
		pr_warn("Correction value is out of range : %d\n",
		qphy->tune2_efuse_correction);
		else
		qphy->tune2_val = qphy->tune2_val +
		qphy->tune2_efuse_correction;
		}

		if (!qphy->tune2_val)
		qphy->tune2_val = TUNE2_DEFAULT_HIGH_NIBBLE;

		@@ -1039,6 +1051,9 @@ static int qusb_phy_probe(struct platform_device *pdev)
		"qcom,tune2-efuse-num-bits",
		&qphy->tune2_efuse_num_of_bits);
		}
		of_property_read_u32(dev->of_node,
		"qcom,tune2-efuse-correction",
		&qphy->tune2_efuse_correction);

		if (ret) {
		dev_err(dev, "DT Value for tune2 efuse is invalid.\n");