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With the DT bindings now describing the format of the CPU OPP tables, we
can include the OPP table in each board's .dts file, and specify the CPU
power supply.
This allows to enable DVFS, and get up to 50% of performance benefit in
the highest OPP, or up to 60% power savings in the lowest OPP, compared
to the fixed 1GHz @ 1.0V OPP we are running in by default at the moment.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Documentation/process/license-rules.rst and checkpatch expect the SPDX
identifier syntax for multiple licenses to use capital "OR". Correct it
to keep consistent format and avoid copy-paste issues.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com> # Broadcom
Link: https://lore.kernel.org/r/20230823085146.113562-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The X96 Mate TV box has two USB-A ports, VBUS is always on and connected
to the DC input.
Since USB port 0 is connected to an USB-A receptable, we configure it
as a host port. Using it as a peripheral is dangerous, because VBUS is
always on.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20221031111358.3387297-8-andre.przywara@arm.com
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
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The X96 Mate is an Allwinner H616 based TV box, featuring:
- Four ARM Cortex-A53 cores, Mali-G31 MP2 GPU
- 2GiB/4GiB RAM (fully usable!)
- 16/32/64GiB eMMC
- 100Mbps Ethernet (via embedded AC200 EPHY, not yet supported)
- Unsupported Allwinner WiFi chip
- 2 x USB 2.0 host ports
- HDMI port
- IR receiver
- 5V/2A DC power supply via barrel plug
Add a basic devicetree for it, with SD card and eMMC working, as
well as serial and the essential peripherals, like the AXP PMIC.
This DT is somewhat minimal, and should work on many other similar TV
boxes with the Allwinner H616 chip.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220708105235.3983266-8-andre.przywara@arm.com
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