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phy: fsl-imx8-mipi-dphy: Hook into runtime pm

Guido Günther linux-arm-kernel lkml 5 versions – In review

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Versions newest first · linked by author and title

  1. v5 Latest2 patches 3 repliesIn review
  2. v41 patch 2 repliesSuperseded
  3. v30 of 1 patch 2 repliesSuperseded
Earlier versions · 2
VersionPostedPatchesRepliesStatus
v21 patch6 repliesSuperseded
v11 patch1 replySuperseded

Changes from v1 from the cover letter

- Tweak commit message slightly

Patches in v5 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/2phy: core: Use runtime pm during configure toodrivers/phy/phy-core.c+6 -02 replies
2/2phy: fsl-imx8-mipi-dphy: Hook into runtime pmdrivers/phy/freescale/phy-fsl-imx8-mipi-dphy.c+13 -01 reply

Reviews trailers per patch

1 of 2 patches has a Reviewed-by or Acked-by.

PatchLiu Ying
1/2
2/2R-b

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.

Read the v5 thread

Cover letter [PATCH v5 0/2] phy: fsl-imx8-mipi-dphy: Hook into runtime pm

This allows us to shut down the mipi power domain on the imx8. The alternative would be to drop the dphy from the mipi power domain in the SOCs device tree and only have the DSI host controller visible there but since the PD is mostly about the PHY that would defeat it's purpose.

This allows to shut off the power domain when blanking the LCD panel:

pm_genpd_summary before:

domain status slaves
/device runtime status
----------------------------------------------------------------------
mipi on

    /devices/platform/soc@0/soc@0:bus@30800000/30a00300.dphy  unsupported
    /devices/platform/soc@0/soc@0:bus@30800000/30a00000.mipi_dsi  suspended

after:

mipi off-0

    /devices/platform/soc@0/soc@0:bus@30800000/30a00300.dphy  suspended
    /devices/platform/soc@0/soc@0:bus@30800000/30a00000.mipi_dsi  suspended

Changes from v1:
- Tweak commit message slightly

Changes from v2:
- As per review comment by Lucas Stach
https://lore.kernel.org/linux-arm-kernel/[email protected]/
Check for pm_runtime_get_sync failure

Changes from v3:
- As per review comment by Liu Ying
https://lore.kernel.org/linux-arm-kernel/[email protected]/
https://lore.kernel.org/linux-arm-kernel/[email protected]/
- Use phy layers runtime pm
- simplify mixel_dphy_remove

Chanes from v4:
- As per review comment by Liu Ying
https://lore.kernel.org/linux-arm-kernel/[email protected]/
- Disable after probe errors
- core: increment device usage count on .configure as well

Guido Günther (2):
phy: core: Use runtime pm during configure too
phy: fsl-imx8-mipi-dphy: Hook into runtime pm

 drivers/phy/freescale/phy-fsl-imx8-mipi-dphy.c | 13 +++++++++++++
 drivers/phy/phy-core.c                         |  6 ++++++
 2 files changed, 19 insertions(+)
Signature · 1 line
2.30.1

Read the cover letter in its thread