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imx: ventana: export backlight gpio after gpio driver is available

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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>
This commit is contained in:
Tim Harvey 2016-05-24 11:03:53 -07:00 • committed by Stefano Babic
parent ca628b74c9
commit 7853262330
1 changed files with 3 additions and 2 deletions
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5
board/gateworks/gw_ventana/gw_ventana.c
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@ -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);
}