From: Igor Opaniuk igor.opaniuk@toradex.com
Make sure the Apalis GPIO 8 aka FAN_EN is on when using Apalis TK1 modules.
Reviewed-by: Oleksandr Suvorov oleksandr.suvorov@toradex.com Signed-off-by: Igor Opaniuk igor.opaniuk@toradex.com Signed-off-by: Dominik Sliwa dominik.sliwa@toradex.com ---
board/toradex/apalis-tk1/apalis-tk1.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/board/toradex/apalis-tk1/apalis-tk1.c b/board/toradex/apalis-tk1/apalis-tk1.c index b87e9e7a3e..d57c5042dd 100644 --- a/board/toradex/apalis-tk1/apalis-tk1.c +++ b/board/toradex/apalis-tk1/apalis-tk1.c @@ -19,6 +19,7 @@
#define LAN_DEV_OFF_N TEGRA_GPIO(O, 6) #define LAN_RESET_N TEGRA_GPIO(S, 2) +#define FAN_EN TEGRA_GPIO(DD, 2) #define LAN_WAKE_N TEGRA_GPIO(O, 5) #ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT #define PEX_PERST_N TEGRA_GPIO(DD, 1) /* Apalis GPIO7 */ @@ -241,6 +242,15 @@ void tegra_pcie_board_port_reset(struct tegra_pcie_port *port) } #endif /* CONFIG_PCI_TEGRA */
+/* + * Enable/start PWM CPU fan + */ +void start_cpu_fan(void) +{ + gpio_request(FAN_EN, "FAN_EN"); + gpio_direction_output(FAN_EN, 1); +} + /* * Backlight off before OS handover */