tty: amba-pl011: add .get_fifosize for ZTE device

ZTE PL011 device has a fixed FIFO size 16.  Let's add a .get_fifosize
hook for it.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 3914ad0c2c26fccab03857ff8ae1593da54e260b..055fe27e364f23de5509fe8ce7c4a4ab2d4516f4 100644 (file)
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -204,6 +204,11 @@ static const u16 pl011_zte_offsets[REG_ARRAY_SIZE] = {
        [REG_DMACR] = ZX_UART011_DMACR,
 };
 
+static unsigned int get_fifosize_zte(struct amba_device *dev)
+{
+       return 16;
+}
+
 static struct vendor_data vendor_zte __maybe_unused = {
        .reg_offset             = pl011_zte_offsets,
        .access_32b             = true,
@@ -212,7 +217,7 @@ static struct vendor_data vendor_zte __maybe_unused = {
        .fr_dsr                 = ZX_UART01x_FR_DSR,
        .fr_cts                 = ZX_UART01x_FR_CTS,
        .fr_ri                  = ZX_UART011_FR_RI,
-       .get_fifosize           = get_fifosize_arm,
+       .get_fifosize           = get_fifosize_zte,
 };
 
 /* Deals with DMA transactions */