[RESEND PATCH 1/2] ARM: dts: Improve Peach Pit and Pi power scheme

Doug Anderson dianders at chromium.org
Mon Aug 11 08:46:42 PDT 2014


Javier,

On Mon, Aug 11, 2014 at 4:38 AM, Javier Martinez Canillas
<javier.martinez at collabora.co.uk> wrote:
> The DeviceTree files for the Peach Pit and Pi machines have
> a simplistic model of the connections between the different
> regulators since not all the tps65090 regulators get their
> input supply voltage from the VDC. DCDC1-3, LD0-1 and fet7
> parent supply is indded VDC but the fet1-6 get their input
> supply from the DCDC1 and DCDC2 output voltage rails.
>
> Update the DeviceTree to better reflect the real connections
> between tps65090 regulators. Having this information in the
> DTS is useful since FETs are switches that don't provide an
> output voltage so the regulator core needs to fetch the FET
> parent output voltage if the child voltage is queried.
>
> Signed-off-by: Javier Martinez Canillas <javier.martinez at collabora.co.uk>
> Acked-by: Mark Brown <broonie at linaro.org>
> ---
>  arch/arm/boot/dts/exynos5420-peach-pit.dts | 12 ++++++------
>  arch/arm/boot/dts/exynos5800-peach-pi.dts  | 12 ++++++------
>  2 files changed, 12 insertions(+), 12 deletions(-)

Matches my schematics.  Kukjin: I think this could be applied to
for-next whenever it's convenient.

Acked-by: Doug Anderson <dianders at chromium.org>



More information about the linux-arm-kernel mailing list