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authorSiarhei Siamashka <siarhei.siamashka@gmail.com>2015-01-19 05:23:30 +0200
committerHans de Goede <hdegoede@redhat.com>2015-01-22 12:34:56 +0100
commit6906df1ab8d64a4e21d38ea538d6cd383a089e1d (patch)
tree8cf859d55e725597427930a5626a6f70764d946e /board/sunxi
parent6c46c8e890a6625455efcbfc5ad13917c1f4b61e (diff)
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sunxi: axp221: Add ELDO[1-3] support
And also add Kconfig option for selecting ELDO3 voltage. The reason for having this option is that the Android kernel sets ELDO3 to 1.2V when powering up LCD in the case if 'lcd_if' configuration variable is set to 6 (LCD_IF_EXT_DSI) in the FEX file. Most likely to supply power for a SSD2828 chip. However on the MSI Primo81 tablet, which is using this particular 'lcd_if = 6' setup for LCD, setting the ELDO3 voltage appears to be unnecessary and it works regardless. Having no schematics of this tablet, I can only guess that 1.2V is supplied to SSD2828 in some other way. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'board/sunxi')
-rw-r--r--board/sunxi/board.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index 7d6d075..6b19f75 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -189,6 +189,7 @@ void sunxi_board_init(void)
power_failed |= axp221_set_aldo1(CONFIG_AXP221_ALDO1_VOLT);
power_failed |= axp221_set_aldo2(CONFIG_AXP221_ALDO2_VOLT);
power_failed |= axp221_set_aldo3(CONFIG_AXP221_ALDO3_VOLT);
+ power_failed |= axp221_set_eldo(3, CONFIG_AXP221_ELDO3_VOLT);
#endif
printf("DRAM:");