iPod mini backlight initialization

Fixes backlight not turning on after booting (tested on an iPod Mini 2G).

backlight_hw_init() copied from iPod 4G.

Change-Id: I9c32ca5ecd3dc74ea997e6cb843da79d303b0615

2 files changed, 8 insertions, 1 deletions

diff --git a/firmware/target/arm/ipod/backlight-mini1g_mini2g.c b/firmware/target/arm/ipod/backlight-mini1g_mini2g.c
index 8dd7ef87bd..143be32e91 100644
--- a/firmware/target/arm/ipod/backlight-mini1g_mini2g.c
+++ b/firmware/target/arm/ipod/backlight-mini1g_mini2g.c
@@ -43,3 +43,10 @@ void backlight_hw_off(void)
 {
     GPIO_CLEAR_BITWISE(GPIOB_OUTPUT_VAL, 0x08);
 }
+
+bool backlight_hw_init(void)
+{
+    GPIO_SET_BITWISE(GPIOB_ENABLE, 0x0c); /* B02 and B03 enable */
+    GPIO_SET_BITWISE(GPIOB_OUTPUT_VAL, 0x08); /* B03 = 1 */
+    return true;
+}
diff --git a/firmware/target/arm/ipod/backlight-target.h b/firmware/target/arm/ipod/backlight-target.h
index 299a1cb6e7..133663d279 100644
--- a/firmware/target/arm/ipod/backlight-target.h
+++ b/firmware/target/arm/ipod/backlight-target.h
@@ -57,7 +57,7 @@ void backlight_hw_brightness(int val);
 
 #elif defined(IPOD_MINI) || defined(IPOD_MINI2G)
 
-#define backlight_hw_init() true
+bool backlight_hw_init(void);
 void backlight_hw_on(void);
 void backlight_hw_off(void);