From ccb12fbb58c13af46e2275fd50cd8b171fdd169a Mon Sep 17 00:00:00 2001 From: Shawn Nematbakhsh Date: Wed, 3 Jul 2013 17:55:38 -0700 Subject: peppy: Disable audio codec enable GPIO in S3 + S5. To save power, disable audio codec in S3 + S5. Also, refactor Lynxpoint GPIO code slightly to allow usage in SMM binary. Change-Id: I55c4248c89a258b5e4cecf8579eb58f1c15430c0 Signed-off-by: Shawn Nematbakhsh Reviewed-on: https://gerrit.chromium.org/gerrit/60950 Reviewed-by: Aaron Durbin Reviewed-on: http://review.coreboot.org/4339 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich --- src/mainboard/google/peppy/smihandler.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'src/mainboard/google') diff --git a/src/mainboard/google/peppy/smihandler.c b/src/mainboard/google/peppy/smihandler.c index 7b7dd69beb..16e8f64d4e 100644 --- a/src/mainboard/google/peppy/smihandler.c +++ b/src/mainboard/google/peppy/smihandler.c @@ -32,6 +32,9 @@ #include #include "ec.h" +/* Codec enable: GPIO45 */ +#define GPIO_PP3300_CODEC_EN 45 + int mainboard_io_trap_handler(int smif) { switch (smif) { @@ -98,6 +101,8 @@ void mainboard_smi_sleep(u8 slp_typ) if (smm_get_gnvs()->s3u1 == 0) google_chromeec_set_usb_charge_mode( 1, USB_CHARGE_MODE_DISABLED); + + set_gpio(GPIO_PP3300_CODEC_EN, 0); break; case 5: if (smm_get_gnvs()->s5u0 == 0) @@ -106,6 +111,8 @@ void mainboard_smi_sleep(u8 slp_typ) if (smm_get_gnvs()->s5u1 == 0) google_chromeec_set_usb_charge_mode( 1, USB_CHARGE_MODE_DISABLED); + + set_gpio(GPIO_PP3300_CODEC_EN, 0); break; } -- cgit v1.2.3