phy: qcom-qusb2: Re add "qcom,sdm845-qusb2-phy" compat string

This patch fixes a regression in 5.7-rc1+

In commit 8fe75cd ("phy: qcom-qusb2: Add generic QUSB2 V2
PHY support"), the change was made to add "qcom,qusb2-v2-phy"
as a generic compat string. However the change also removed
the "qcom,sdm845-qusb2-phy" compat string, which is documented
in the binding and already in use.

This patch re-adds the "qcom,sdm845-qusb2-phy" compat string
which allows the driver to continue to work with existing dts
entries such as found on the db845c.

Cc: Andy Gross <[email protected]>
Cc: Bjorn Andersson <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Doug Anderson <[email protected]>
Cc: Manu Gautam <[email protected]>
Cc: Sandeep Maheswaram <[email protected]>
Cc: Matthias Kaehlcke <[email protected]>
Cc: Stephen Boyd <[email protected]>
Cc: Kishon Vijay Abraham I <[email protected]>
Cc: [email protected]
Cc: [email protected]
Reviewed-by: Stephen Boyd <[email protected]>
Reviewed-by: Douglas Anderson <[email protected]>
Reviewed-by: Bjorn Andersson <[email protected]>
Fixes: 8fe75cd ("phy: qcom-qusb2: Add generic QUSB2 V2 PHY support")
Reported-by: YongQin Liu <[email protected]>
Signed-off-by: John Stultz <[email protected]>
Signed-off-by: Kishon Vijay Abraham I <[email protected]>

Author: johnstultz-work

drivers/phy/qualcomm/phy-qcom-qusb2.c

@@ -815,6 +815,13 @@ static const struct of_device_id qusb2_phy_of_match_table[] = {
 	}, {
 		.compatible	= "qcom,msm8998-qusb2-phy",
 		.data		= &msm8998_phy_cfg,
+	}, {
+		/*
+		 * Deprecated. Only here to support legacy device
+		 * trees that didn't include "qcom,qusb2-v2-phy"
+		 */
+		.compatible	= "qcom,sdm845-qusb2-phy",
+		.data		= &qusb2_v2_phy_cfg,
 	}, {
 		.compatible	= "qcom,qusb2-v2-phy",
 		.data		= &qusb2_v2_phy_cfg,