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* [PATCH v2 0/5] rockchip: Add power controller support for RK3528
@ 2025-07-23  8:56 Jonas Karlman
  2025-07-23  8:56 ` [PATCH v2 1/5] dt-bindings: gpio: rockchip: Allow use of a power-domain Jonas Karlman
                   ` (5 more replies)
  0 siblings, 6 replies; 13+ messages in thread
From: Jonas Karlman @ 2025-07-23  8:56 UTC (permalink / raw)
  To: Heiko Stuebner, Rob Herring, Krzysztof Kozlowski, Conor Dooley
  Cc: Yao Zi, Chukun Pan, devicetree, linux-rockchip, linux-arm-kernel,
	linux-kernel, Jonas Karlman

The Rockchip RK3528 support multiple power domains, one PD_GPU that can
fully be powered down, and other that can be idle requested.

Vendor kernel flag all power domains on RK3528 as always-on, this takes
a different route and instead tries to describe all devices power-domain
in the device tree, even for controllers with unsupported runtime status.

The PD_RKVDEC is used by RKVDEC and DDRPHY CRU, and is kept disabled to
prevent a full system reset when trying to read current rate of the
SCMI_CLK_DDR clock.

pm_genpd_summary on a Radxa E20C after this:

  domain                          status          children        performance
      /device                         runtime status                  managed by
  ------------------------------------------------------------------------------
  vpu                             on                              0
      ffaf0000.gpio                   unsupported                 0           SW
      ffb10000.gpio                   unsupported                 0           SW
      ffbe0000.ethernet               active                      0           SW
      ffae0000.adc                    unsupported                 0           SW
      ffbf0000.mmc                    suspended                   0           SW
  vo                              on                              0
      ffb00000.gpio                   unsupported                 0           SW
      ffc30000.mmc                    suspended                   0           SW
  venc                            on                              0
      ffb20000.gpio                   unsupported                 0           SW
      ffa58000.i2c                    unsupported                 0           SW
  gpu                             off-0                           0
      ff700000.gpu                    suspended                   0           SW

Changes in v2:
- Drop already applied patches
- Add snps-dw-apb-uart dt-bindings patch
- Update commit messages

This series depend on the patch "arm64: dts: rockchip: convert rk3528
power-domains to dt-binding constants" [1] for a clean apply.

[1] https://lore.kernel.org/r/20250620201715.1572609-1-heiko@sntech.de

Jonas Karlman (5):
  dt-bindings: gpio: rockchip: Allow use of a power-domain
  dt-bindings: i2c: i2c-rk3x: Allow use of a power-domain
  dt-bindings: iio: adc: rockchip-saradc: Allow use of a power-domain
  dt-bindings: serial: snps-dw-apb-uart: Allow use of a power-domain
  arm64: dts: rockchip: Enable more power domains for RK3528

 .../bindings/gpio/rockchip,gpio-bank.yaml     |  3 ++
 .../devicetree/bindings/i2c/i2c-rk3x.yaml     |  3 ++
 .../bindings/iio/adc/rockchip-saradc.yaml     |  3 ++
 .../bindings/serial/snps-dw-apb-uart.yaml     |  3 ++
 arch/arm64/boot/dts/rockchip/rk3528.dtsi      | 30 +++++++++++++++++--
 5 files changed, 39 insertions(+), 3 deletions(-)

-- 
2.50.1



^ permalink raw reply	[flat|nested] 13+ messages in thread

end of thread, other threads:[~2025-07-24 13:52 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-07-23  8:56 [PATCH v2 0/5] rockchip: Add power controller support for RK3528 Jonas Karlman
2025-07-23  8:56 ` [PATCH v2 1/5] dt-bindings: gpio: rockchip: Allow use of a power-domain Jonas Karlman
2025-07-23 13:47   ` Rob Herring (Arm)
2025-07-23  8:56 ` [PATCH v2 2/5] dt-bindings: i2c: i2c-rk3x: " Jonas Karlman
2025-07-23 13:47   ` Rob Herring (Arm)
2025-07-23 22:45   ` Andi Shyti
2025-07-23  8:56 ` [PATCH v2 3/5] dt-bindings: iio: adc: rockchip-saradc: " Jonas Karlman
2025-07-23 13:47   ` Rob Herring (Arm)
2025-07-23 15:50   ` Jonathan Cameron
2025-07-23  8:56 ` [PATCH v2 4/5] dt-bindings: serial: snps-dw-apb-uart: " Jonas Karlman
2025-07-23 13:47   ` Rob Herring (Arm)
2025-07-23  8:56 ` [PATCH v2 5/5] arm64: dts: rockchip: Enable more power domains for RK3528 Jonas Karlman
2025-07-24  9:55 ` (subset) [PATCH v2 0/5] rockchip: Add power controller support " Bartosz Golaszewski

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