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There is no Peripheral Identification Registers on ZTE PL011 device, so although the driver amba-pl011 is ready to work for ZTE device, the device cannot be probed by the driver at all. With arm,primecell-periphid DT bindings (bindings/arm/primecell.txt) in place, it should be the cleanest the way to use a pseudo-ID to probe the device from AMBA bus. We create an unofficial vendor number AMBA_VENDOR_LINUX, which will practically never become an official vendor ID, and takes Configuration, Revision number, and Part number as input to compose a pseudo-ID for ZTE device. Also, since we start using vendor_zte to probe ZTE device, the __maybe_unused for vendor_zte is removed. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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