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 <thar...@gateworks.com>
---
board/gateworks/gw_ventana/gw_ventana.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/board/gateworks/gw_ventana/gw_ventana.c
b/board/gateworks/gw_ventana/gw_ventana.c
index 3b7c82b..7a3d96a 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);
}
--
1.9.1
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