[PATCH v5 0/4] i3c: renesas: Add suspend/resume support

From: Tommaso Merciai

Date: Wed Jan 07 2026 - 05:34:23 EST


Dear All,
This series adds suspend/resume support to the Renesas I3C controller driver.

Thanks & Regards,
Tommaso

v4->v5:
- Rebased on top of next-20260107
- PATCH 1/4:
- Improved check for clk_bulk_get_all_enabled() failure into
renesas_i3c_probe().
- PATCH 2/4:
- Moved presetn and tresetn reset controls renesas_i3c struct
entries above num_clks to avoid padding.
- PATCH 4/4:
- Collected tag.

v3->v4:
- Rebased on top of next-20260105
- PATCH 1/4:
- Collected tag.
- PATCH 4/4:
- Use clk_bulk_disable/enable() into renesas_i3c_suspend/resume_noirq()
instead of clk_bulk_prepare_enable()/clk_bulk_disable_unprepare()

v2->v3:
- PATCH 1/4:
- Added define for TCLK index.
- Use devm_clk_bulk_get_all_enabled() into renesas_i3c_probe().
- Improved commit body.
- Dropped unnecessary static const char * const renesas_i3c_clks[].
- Removed the need for per-SoC clock handling and the renesas_i3c_config data.
- PATCH 2/4:
- Collected FLi tag.
- Improved commit body.
- PATCH 3/4:
- Collected FLi tag.
- Improved commit body.
- PATCH 4/4:
Fixed error path into renesas_i3c_resume_noirq() and
renesas_i3c_suspend_noirq() function.

v1->v2:
- Split patches into smaller chunks.
- Use clock bulk API.
- Update patch 4/4 accordingly.

Tommaso Merciai (4):
i3c: renesas: Switch to clk_bulk API and store clocks in private data
i3c: renesas: Store clock rate and reset controls in struct
renesas_i3c
i3c: renesas: Factor out hardware initialization to separate function
i3c: renesas: Add suspend/resume support

drivers/i3c/master/renesas-i3c.c | 259 ++++++++++++++++++++-----------
1 file changed, 170 insertions(+), 89 deletions(-)

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2.43.0