diff options
| author | Andy Yeh <andy.yeh@intel.com> | 2018-01-29 15:18:32 +0800 |
|---|---|---|
| committer | Furquan Shaikh <furquan@google.com> | 2018-02-06 01:06:58 +0000 |
| commit | c4f94b1a7514b58388d347e79575b547eb82d08f (patch) | |
| tree | 6fa10033ef0c47b62142bda1b5d45a1a62bbd0da /src/mainboard/google/poppy | |
| parent | 0592776467012a371655ccfaa0a4e708be904b2c (diff) | |
mb/google/nautilus: Work around the power issue of MIPI and USB cameras
On EVT, the USB and MIPI cameras share the same power source. As a result,
when the MIPI camera driver turns off the camera once probed, USB camera will
be disconnected. To make USB camera work on EVT devices, we will need a hack in
coreboot to leave the camera power always-on.
BUG=b:72839352
TEST: Verified the MIPI and USB camera function on DUT board
TODO: This power issue will be fixed on DVT build. Will revert this patch
once confirmed power sources for MIPI and USB camera could be supplied
individually.
Change-Id: Icaaf7e17447492f2e2f2d03eb9a35bcc53667f28
Signed-off-by: Andy Yeh <andy.yeh@intel.com>
Reviewed-on: https://review.coreboot.org/23546
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Andy Yeh
Diffstat (limited to 'src/mainboard/google/poppy')
| -rw-r--r-- | src/mainboard/google/poppy/variants/baseboard/include/baseboard/acpi/camera_pmic.asl | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/mainboard/google/poppy/variants/baseboard/include/baseboard/acpi/camera_pmic.asl b/src/mainboard/google/poppy/variants/baseboard/include/baseboard/acpi/camera_pmic.asl index 5eaf5b758a..b74fba98d9 100644 --- a/src/mainboard/google/poppy/variants/baseboard/include/baseboard/acpi/camera_pmic.asl +++ b/src/mainboard/google/poppy/variants/baseboard/include/baseboard/acpi/camera_pmic.asl @@ -39,7 +39,14 @@ Scope (\_SB.PCI0.I2C2) Method (PMOF, 0, Serialized) { /* Make Sure all PMIC outputs are off. */ If (LEqual (VSIC, Zero)) { + /* + * On Nautilus Pre-EVT/EVT, the USB and MIPI share the + * same power source, before HW fix in DVT, temporarily + * disabled turn off 3V3_VDD + */ +#if !IS_ENABLED(CONFIG_BOARD_GOOGLE_NAUTILUS) CTXS(EN_PP3300_DX_CAM) +#endif } } |