From ce69b95ca4e459f54b5afad717d2129d3ba1ff6e Mon Sep 17 00:00:00 2001 From: Guan Ben Date: Tue, 7 Feb 2017 06:22:04 +0100 Subject: NFC: Make EN2 pin optional in the TRF7970A driver Make the EN2 pin optional. This is useful for boards, which have this pin fix wired, for example to ground. Acked-by: Rob Herring Signed-off-by: Guan Ben Signed-off-by: Mark Jonas Signed-off-by: Heiko Schocher Signed-off-by: Samuel Ortiz --- Documentation/devicetree/bindings/net/nfc/trf7970a.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/net/nfc/trf7970a.txt b/Documentation/devicetree/bindings/net/nfc/trf7970a.txt index 32b35a07abe4..5889a3d133b2 100644 --- a/Documentation/devicetree/bindings/net/nfc/trf7970a.txt +++ b/Documentation/devicetree/bindings/net/nfc/trf7970a.txt @@ -5,8 +5,8 @@ Required properties: - spi-max-frequency: Maximum SPI frequency (<= 2000000). - interrupt-parent: phandle of parent interrupt handler. - interrupts: A single interrupt specifier. -- ti,enable-gpios: Two GPIO entries used for 'EN' and 'EN2' pins on the - TRF7970A. +- ti,enable-gpios: One or two GPIO entries used for 'EN' and 'EN2' pins on the + TRF7970A. EN2 is optional. - vin-supply: Regulator for supply voltage to VIN pin Optional SoC Specific Properties: -- cgit v1.2.3-59-g8ed1b