[coreboot-gerrit] New patch to review for coreboot: [UNTESTED] use correct GPIO for hybrid driver on lenovo/T400
Arthur Heymans (arthur@aheymans.xyz)
gerrit at coreboot.org
Tue Aug 30 13:57:58 CEST 2016
Arthur Heymans (arthur at aheymans.xyz) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/16354
-gerrit
commit ad06bcfbc9f6970de9fbbc3442c84223746f7e88
Author: Arthur Heymans <arthur at aheymans.xyz>
Date: Tue Aug 30 13:42:33 2016 +0200
[UNTESTED] use correct GPIO for hybrid driver on lenovo/T400
Currently the hybrid driver uses GPIO 52 to configure mux. This is not
the right GPIO on t400 according to schematics "MALIBU-3". It should be
gpio22.
Previously also gpio 49 (GFX_PWR_EN) , 19 (BKLT_CTRL_SEL),
17 (DGFX_PWRGD) were configured for hybrid graphics to
work on T400, but this was reverted in 14d1a93e: "Revert
mainboard/lenovo/t400: Add initial hybrid graphics support". It is
unknown if this is also needed.
Change-Id: I3167303abeb6b3711d53508c61a340d03b1e050a
Signed-off-by: Arthur Heymans <arthur at aheymans.xyz>
---
src/mainboard/lenovo/t400/Kconfig | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/mainboard/lenovo/t400/Kconfig b/src/mainboard/lenovo/t400/Kconfig
index a444bf8..6ea66bd 100644
--- a/src/mainboard/lenovo/t400/Kconfig
+++ b/src/mainboard/lenovo/t400/Kconfig
@@ -56,4 +56,8 @@ config ONBOARD_VGA_IS_PRIMARY
bool
default y
+config HYBRID_GRAPHICS_GPIO_NUM
+ int
+ default 22
+
endif # BOARD_LENOVO_T400
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