diff options
| author | Krzysztof Kozlowski <krzk@kernel.org> | 2019-03-06 19:37:53 +0100 |
|---|---|---|
| committer | Minkyu Kang <mk7.kang@samsung.com> | 2019-03-11 15:53:19 +0900 |
| commit | fce86100606d14e53517a3601849646e69715465 (patch) | |
| tree | e173fc703b4529c71c71aede601cceab823743e7 /doc/uImage.FIT/sign-images.its | |
| parent | 345a53685f7dc7a8da8fbc1be596c02c7209bfbf (diff) | |
arm: exynos: Wait till ADC stabilizes before checking Odroid HC1 revision
Fix detection of Odroid HC1 (Exynos5422) after reboot if kernel disabled
the LDO4/VDD_ADC regulator.
The LDO4 supplies both ADC block and the ADC input AIN9. Voltage on
AIN9 will rise slowly, so use delay of 5 milliseconds instead of
timers-based loop to wait for voltage stabilization.
First reads on Odroid HC1 return 305, 1207, 1297 and finally 1308
(reference value is 1309).
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'doc/uImage.FIT/sign-images.its')
0 files changed, 0 insertions, 0 deletions