mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-08-27 06:50:37 +00:00
da3d0b772f
In order to support the complex power sequencing required by the TH1520 GPU, the AON power domain driver must be responsible for initiating the corresponding sequencer driver. This functionality is specific to platforms where the GPU power sequencing hardware is controlled by the AON block. Extend the AON power domain driver to check for the presence of the "gpu-clkgen" reset in its own device tree node. If the property is found, create and register a new auxiliary device. This device acts as a proxy that allows the dedicated `pwrseq-thead-gpu` auxiliary driver to bind and take control of the sequencing logic. Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com> Link: https://lore.kernel.org/r/20250623-apr_14_for_sending-v6-3-6583ce0f6c25@samsung.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
14 lines
449 B
Plaintext
14 lines
449 B
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
|
|
|
|
config TH1520_PM_DOMAINS
|
|
tristate "Support TH1520 Power Domains"
|
|
depends on TH1520_AON_PROTOCOL
|
|
select REGMAP_MMIO
|
|
select AUXILIARY_BUS
|
|
help
|
|
This driver enables power domain management for the T-HEAD
|
|
TH-1520 SoC. On this SoC there are number of power domains,
|
|
which can be managed independently. For example GPU, NPU,
|
|
and DPU reside in their own power domains which can be
|
|
turned on/off.
|