This patch adds common helpers to issue power commands, poll
transitions, and validate domain state, then wires them into the L2
on/off paths.
The L2 power-on sequence now delegates control of the SHADER and TILER
domains to the MCU when allowed, while the L2 itself is never delegated.
On power-off, dependent domains beneath the L2 are checked, and if
necessary, retracted and powered down to maintain proper domain
ordering.
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Karunika Choo <karunika.choo@arm.com>
Link: https://patch.msgid.link/20251125125548.3282320-5-karunika.choo@arm.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Add the new panthor_pwr module, which provides basic power control
management for Mali-G1 GPUs. The initial implementation includes
infrastructure for initializing the PWR_CONTROL block, requesting and
handling its IRQ, and checking for PWR_CONTROL support based on GPU
architecture.
The patch also integrates panthor_pwr with the device lifecycle (init,
suspend, resume, and unplug) through the new API functions. It also
registers the IRQ handler under the 'gpu' IRQ as the PWR_CONTROL block
is located within the GPU_CONTROL block.
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Karunika Choo <karunika.choo@arm.com>
Link: https://patch.msgid.link/20251125125548.3282320-4-karunika.choo@arm.com
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
