From ad2efa3a289266866e62f984dbd93f0231116cdf Mon Sep 17 00:00:00 2001 From: Tim Harvey Date: Mon, 4 Feb 2019 13:10:59 -0800 Subject: [PATCH] imx: ventana: gw5904/gw5909: disable RS485 The GW5904/GW5909 have a SP33E multi-protocol serial transceiver which we want to configure to RS232 by default (by de-asserting RS485_EN) Signed-off-by: Tim Harvey --- board/gateworks/gw_ventana/common.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/board/gateworks/gw_ventana/common.c b/board/gateworks/gw_ventana/common.c index 8934f213dd..8786a12dc0 100644 --- a/board/gateworks/gw_ventana/common.c +++ b/board/gateworks/gw_ventana/common.c @@ -1429,6 +1429,8 @@ void setup_iomux_gpio(int board, struct ventana_board_info *info) break; case GW5909: case GW5904: + gpio_request(IMX_GPIO_NR(4, 23), "rs485_en"); + gpio_direction_output(IMX_GPIO_NR(4, 23), 0); gpio_request(IMX_GPIO_NR(5, 11), "skt1_wdis#"); gpio_direction_output(IMX_GPIO_NR(5, 11), 1); gpio_request(IMX_GPIO_NR(5, 12), "skt1_rst#"); -- 2.30.2