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Diffstat (limited to 'board/toradex/colibri_t20/colibri_t20.c')
-rw-r--r--board/toradex/colibri_t20/colibri_t20.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/board/toradex/colibri_t20/colibri_t20.c b/board/toradex/colibri_t20/colibri_t20.c
index 5dd0f288ed..e0b27e92f8 100644
--- a/board/toradex/colibri_t20/colibri_t20.c
+++ b/board/toradex/colibri_t20/colibri_t20.c
@@ -150,4 +150,13 @@ void pin_mux_display(void)
pinmux_set_func(PMUX_PINGRP_SDC, PMUX_FUNC_PWM);
pinmux_tristate_disable(PMUX_PINGRP_SDC);
}
+
+/*
+ * Backlight off before OS handover
+ */
+void board_preboot_os(void)
+{
+ gpio_request(TEGRA_GPIO(T, 4), "BL_ON");
+ gpio_direction_output(TEGRA_GPIO(T, 4), 0);
+}
#endif