The NPLL is the only safe way to generate 500 MHz for the GPU. The
downstream Chrome OS 3.14 kernel ('official' kernel for veyron
devices) re-purposes NPLL to HDMI and hence disables the OPP for
the GPU (see https://crrev.com/c/
1574579). Disable it here as well
to keep in sync and avoid problems in case someone decides to
re-purpose NPLL.
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
[moved from veyron to general rk3288, as tying up the NPLL for a
not-that-helpful opp (not really fast but will still generate
quite a bit of heat) doesn't make so much sense when it will
keep us from supporting other display modes in the future]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
opp-hz = /bits/ 64 <400000000>;
opp-microvolt = <1100000>;
};
- opp-500000000 {
- opp-hz = /bits/ 64 <500000000>;
- opp-microvolt = <1200000>;
- };
opp-600000000 {
opp-hz = /bits/ 64 <600000000>;
opp-microvolt = <1250000>;