Change in coreboot[master]: mb/google/nautilus: Modify the XTDV = 210 due to different OSC from P...

[Andy Yeh (Code Review)]

Hello build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/24910

to look at the new patch set (#2).

Change subject: mb/google/nautilus: Modify the XTDV = 210 due to different OSC from Poppy
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mb/google/nautilus: Modify the XTDV = 210 due to different OSC from Poppy

It is to change MCLK output in 19.2Mhz (currently 23.04Mhz) because
nautilus uses different OSC for TI PMIC.

According to PMIC datasheet (tps68470), the MCLK for camera depends on
the frequency of OSC. In poppy, the frequency of OSC is 20 MHz, the
PLL_REF_CLK = 20M / [XTDV (170) + 30] = 100kHz.
If we want to keep the PLL_REF_CLK in nautilus with 24 MHz OSC, we
should change XDTV to 210.

BUG=b:73987684
TEST: Verified the MIPI camera fps on DUT board.
TODO: OEM tries to fix OSC on next build. Then this patch shall be reverted.

Change-Id: Ia93bee1fc07434c13a5fa4227e100ddaff2de74a
Signed-off-by: Andy Yeh 
---
M src/mainboard/google/poppy/variants/baseboard/include/baseboard/acpi/camera_pmic.asl
1 file changed, 6 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/10/24910/2