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authorTim Harvey <tharvey@gateworks.com>2016-05-24 11:03:53 -0700
committerStefano Babic <sbabic@denx.de>2016-05-31 17:25:02 +0200
commit78532623303e089e7d36b3a11d293e618b927655 (patch)
treee11daa87ee5bb4206935c3347cf771860cf8c7c6 /board/gateworks
parentca628b74c97f3a6620e6f18aad5f917d51c2cdda (diff)
imx: ventana: export backlight gpio after gpio driver is available
Calling request_gpio to register bklt_gpio with the GPIO driver had no effect in setup_display called from early board init (although pinmuxing it and configuring it as output-low does do what it should). Therefore move the request_gpio later in enable_lvds so that its registered for use by the gpio command if LVDS is actually enabled. Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Diffstat (limited to 'board/gateworks')
-rw-r--r--board/gateworks/gw_ventana/gw_ventana.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c
index 3b7c82b1dc1..7a3d96a039c 100644
--- a/board/gateworks/gw_ventana/gw_ventana.c
+++ b/board/gateworks/gw_ventana/gw_ventana.c
@@ -317,6 +317,8 @@ static void enable_lvds(struct display_info_t const *dev)
writel(reg, &iomux->gpr[2]);
/* Enable Backlight */
+ gpio_request(IMX_GPIO_NR(1, 10), "bklt_gpio");
+ gpio_direction_output(IMX_GPIO_NR(1, 10), 0);
gpio_request(IMX_GPIO_NR(1, 18), "bklt_en");
SETUP_IOMUX_PAD(PAD_SD1_CMD__GPIO1_IO18 | DIO_PAD_CFG);
gpio_direction_output(IMX_GPIO_NR(1, 18), 1);
@@ -456,8 +458,7 @@ static void setup_display(void)
<<IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
writel(reg, &iomux->gpr[3]);
- /* Backlight CABEN on LVDS connector */
- gpio_request(IMX_GPIO_NR(1, 10), "bklt_gpio");
+ /* LVDS Backlight GPIO on LVDS connector - output low */
SETUP_IOMUX_PAD(PAD_SD2_CLK__GPIO1_IO10 | DIO_PAD_CFG);
gpio_direction_output(IMX_GPIO_NR(1, 10), 0);
}