linux-kernel - [PATCH v2 0/5] spi: cadence-qspi: Fix runtime PM and system-wide suspend

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Message-ID: <20240205-cdns-qspi-pm-fix-v2-0-c59ac6996428@bootlin.com>
Date: Mon,  5 Feb 2024 15:22:34 +0100
From: Théo Lebrun <theo.lebrun@...tlin.com>
To: theo.lebrun@...tlin.com,
	Mark Brown <broonie@...nel.org>,
	Apurva Nandan <a-nandan@...com>,
	Dhruva Gole <d-gole@...com>
Cc: linux-spi@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Gregory CLEMENT <gregory.clement@...tlin.com>,
	Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	Tawfik Bayouk <tawfik.bayouk@...ileye.com>
Subject: [PATCH v2 0/5] spi: cadence-qspi: Fix runtime PM and system-wide suspend

Hi,

This fixes runtime PM and system-wide suspend for the cadence-qspi
driver. Seeing how runtime PM and autosuspend are enabled by default, I
believe this affects all users of the driver.

The initial change has been split into three commits and a fourth commit
is added to add system-wide suspend/resume callbacks.

The MIPS platform at hand, used for debugging and testing, is currently
not supported by the driver. It is the Mobileye EyeQ5 [0]. No code
changes are required for support, only a new compatible and appropriate
match data + flags. That will come later, with some performance-related
patches.

TODO: changelog below

Thanks all,
Théo

[0]: https://lore.kernel.org/lkml/20240118155252.397947-1-gregory.clement@bootlin.com/

Signed-off-by: Théo Lebrun <theo.lebrun@...tlin.com>
---
Changes in v2:
- EDxxITME: describe what is new in this series revision.
- EDxxITME: use bulletpoints and terse descriptions.
- Link to v1: https://lore.kernel.org/r/20240202-cdns-qspi-pm-fix-v1-1-3c8feb2bfdd8@bootlin.com

---
Théo Lebrun (5):
      spi: cadence-qspi: put runtime in runtime PM hooks names
      spi: cadence-qspi: fix pointer reference in runtime PM hooks
      spi: cadence-qspi: remove system-wide suspend helper calls from runtime PM hooks
      spi: cadence-qspi: add system-wide suspend and resume callbacks
      WIP: spi: cadence-qspi: add debug logs for PM

 drivers/spi/spi-cadence-quadspi.c | 45 ++++++++++++++++++++++++++++-----------
 1 file changed, 33 insertions(+), 12 deletions(-)
---
base-commit: 13acce918af915278e49980a3038df31845dbf39
change-id: 20240202-cdns-qspi-pm-fix-29600cc6d7bf

Best regards,
-- 
Théo Lebrun <theo.lebrun@...tlin.com>