X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fspi%2Fspi-dw.h;h=35589a270468d6f2dcd7f57ef0c4073cd6fe5721;hb=e4da7e9a54649d6877ac23828ff93ce7191eae2c;hp=b75ed327d5a29832ad3461cb28da1089ade94cba;hpb=ca520cab25e0e8da717c596ccaa2c2b3650cfa09;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h
index b75ed327d5a2..35589a270468 100644
--- a/drivers/spi/spi-dw.h
+++ b/drivers/spi/spi-dw.h
@@ -225,6 +225,12 @@ static inline void spi_reset_chip(struct dw_spi *dws)
 	spi_enable_chip(dws, 1);
 }
 
+static inline void spi_shutdown_chip(struct dw_spi *dws)
+{
+	spi_enable_chip(dws, 0);
+	spi_set_clk(dws, 0);
+}
+
 /*
  * Each SPI slave device to work with dw_api controller should
  * has such a structure claiming its working mode (poll or PIO/DMA),