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From: =?utf-8?q?Th=C3=A9o_Lebrun?= <theo.lebrun@bootlin.com>
Subject: [PATCH v2 0/4] spi: cadence-qspi: Fix runtime PM and system-wide
 suspend
Date: Mon, 05 Feb 2024 15:57:28 +0100
Message-Id: <20240205-cdns-qspi-pm-fix-v2-0-2e7bbad49a46@bootlin.com>
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To: Mark Brown <broonie@kernel.org>, Apurva Nandan <a-nandan@ti.com>, 
 Dhruva Gole <d-gole@ti.com>
Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, 
 Gregory CLEMENT <gregory.clement@bootlin.com>, 
 Vladimir Kondratiev <vladimir.kondratiev@mobileye.com>, 
 Thomas Petazzoni <thomas.petazzoni@bootlin.com>, 
 Tawfik Bayouk <tawfik.bayouk@mobileye.com>, 
 =?utf-8?q?Th=C3=A9o_Lebrun?= <theo.lebrun@bootlin.com>

Hi,

This V2 got a false start, hoping you got a good laugh out of it. :-)
Sorry for the spam.

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 V1 has been split into three commits and a fourth commit is added to
add system-wide suspend/resume callbacks as discussed under V1.

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.

This series has been tested on both Mobileye EyeQ5 hardware and the TI
J7200 EVM board, under s2idle.

Thanks all,
Théo

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

Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
---
Changes in v2:
- Split the initial change into three separate commits, to make intents
  clearer.
- Mark controller as suspended during the system-wide suspend.
- Link to v1: https://lore.kernel.org/r/20240202-cdns-qspi-pm-fix-v1-1-3c8feb2bfdd8@bootlin.com

---
Théo Lebrun (4):
      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

 drivers/spi/spi-cadence-quadspi.c | 33 +++++++++++++++++++++------------
 1 file changed, 21 insertions(+), 12 deletions(-)
---
base-commit: 13acce918af915278e49980a3038df31845dbf39
change-id: 20240202-cdns-qspi-pm-fix-29600cc6d7bf

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