phy: amlogic: meson8b-usb2: Add a compatible string for Meson8m2

The 3.10 vendor kernel sets the ACA_ENABLE bit on Meson8b, Meson8m2 and
GXBB, but not on Meson8. Add a compatible string for Meson8m2 which also
sets that bit.
While here, also update the Kconfig text and MODULE_DESCRIPTION.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Thomas Graichen <thomas.graichen@gmail.com>
Link: https://lore.kernel.org/r/20200512222424.549351-7-martin.blumenstingl@googlemail.comSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/phy/amlogic/Kconfig

@@ -3,7 +3,7 @@
 # Phy drivers for Amlogic platforms
 #
 config PHY_MESON8B_USB2
-	tristate "Meson8, Meson8b and GXBB USB2 PHY driver"
+	tristate "Meson8, Meson8b, Meson8m2 and GXBB USB2 PHY driver"
 	default ARCH_MESON
 	depends on OF && (ARCH_MESON || COMPILE_TEST)
 	depends on USB_SUPPORT

drivers/phy/amlogic/phy-meson8b-usb2.c

@@ -302,6 +302,10 @@ static const struct of_device_id phy_meson8b_usb2_of_match[] = {
 		.compatible = "amlogic,meson8b-usb2-phy",
 		.data = &phy_meson8b_usb2_match_data
 	},
+	{
+		.compatible = "amlogic,meson8m2-usb2-phy",
+		.data = &phy_meson8b_usb2_match_data
+	},
 	{
 		.compatible = "amlogic,meson-gxbb-usb2-phy",
 		.data = &phy_meson8b_usb2_match_data
@@ -320,5 +324,5 @@ static struct platform_driver phy_meson8b_usb2_driver = {
 module_platform_driver(phy_meson8b_usb2_driver);
 
 MODULE_AUTHOR("Martin Blumenstingl <martin.blumenstingl@googlemail.com>");
-MODULE_DESCRIPTION("Meson8, Meson8b and GXBB USB2 PHY driver");
+MODULE_DESCRIPTION("Meson8, Meson8b, Meson8m2 and GXBB USB2 PHY driver");
 MODULE_LICENSE("GPL");