[PATCH v2 00/20] pinctrl: Use scope based of_node_put() cleanups

From: "Peng Fan (OSS)" <peng.fan@oss.nxp.com>
To: Linus Walleij <linus.walleij@linaro.org>,
	 Thierry Reding <thierry.reding@gmail.com>,
	 Jonathan Hunter <jonathanh@nvidia.com>,
	Dvorkin Dmitry <dvorkin@tibbo.com>,
	 Wells Lu <wellslutw@gmail.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	 Alexandre Torgue <alexandre.torgue@foss.st.com>,
	 Emil Renner Berthing <kernel@esmil.dk>,
	 Jianlong Huang <jianlong.huang@starfivetech.com>,
	 Hal Feng <hal.feng@starfivetech.com>,
	Orson Zhai <orsonzhai@gmail.com>,
	 Baolin Wang <baolin.wang@linux.alibaba.com>,
	 Chunyan Zhang <zhang.lyra@gmail.com>,
	Viresh Kumar <vireshk@kernel.org>,
	 Shiraz Hashim <shiraz.linux.kernel@gmail.com>,
	soc@kernel.org,  Krzysztof Kozlowski <krzk@kernel.org>,
	 Sylwester Nawrocki <s.nawrocki@samsung.com>,
	 Alim Akhtar <alim.akhtar@samsung.com>,
	 Geert Uytterhoeven <geert+renesas@glider.be>,
	 Patrice Chotard <patrice.chotard@foss.st.com>,
	 Heiko Stuebner <heiko@sntech.de>,
	Damien Le Moal <dlemoal@kernel.org>,
	 Ludovic Desroches <ludovic.desroches@microchip.com>,
	 Nicolas Ferre <nicolas.ferre@microchip.com>,
	 Alexandre Belloni <alexandre.belloni@bootlin.com>,
	 Claudiu Beznea <claudiu.beznea@tuxon.dev>,
	 Dong Aisheng <aisheng.dong@nxp.com>,
	Fabio Estevam <festevam@gmail.com>,
	 Shawn Guo <shawnguo@kernel.org>, Jacky Bai <ping.bai@nxp.com>,
	 Pengutronix Kernel Team <kernel@pengutronix.de>,
	 Chester Lin <chester62515@gmail.com>,
	Matthias Brugger <mbrugger@suse.com>,
	 Ghennadi Procopciuc <ghennadi.procopciuc@oss.nxp.com>,
	 Sean Wang <sean.wang@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	 AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>,
	 Sascha Hauer <s.hauer@pengutronix.de>,
	 Andrew Jeffery <andrew@codeconstruct.com.au>,
	Joel Stanley <joel@jms.id.au>,
	 Dan Carpenter <dan.carpenter@linaro.org>,
	Tony Lindgren <tony@atomide.com>,
	 Stephen Warren <swarren@wwwdotorg.org>
Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
	 linux-tegra@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	 linux-stm32@st-md-mailman.stormreply.com,
	linux-samsung-soc@vger.kernel.org,
	 linux-renesas-soc@vger.kernel.org,
	linux-rockchip@lists.infradead.org,
	 linux-riscv@lists.infradead.org,
	linux-mediatek@lists.infradead.org,  imx@lists.linux.dev,
	linux-aspeed@lists.ozlabs.org,  openbmc@lists.ozlabs.org,
	Peng Fan <peng.fan@nxp.com>,
	 Emil Renner Berthing <emil.renner.berthing@canonical.com>
Subject: [PATCH v2 00/20] pinctrl: Use scope based of_node_put() cleanups
Date: Sat, 04 May 2024 21:19:58 +0800	[thread overview]
Message-ID: <20240504-pinctrl-cleanup-v2-0-26c5f2dc1181@nxp.com> (raw)

Use scope based of_node_put() to simplify code. It reduces the chance
of forgetting of_node_put(), and also simplifies error handling path.
I not able to test the changes on all the hardwares, so driver owners,
please help review when you have time.

This patchset was inspired from Dan's comments on pinctrl-scmi-imx.c,
thanks.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
Changes in v2:
- Drop aspeed changes per Andrew Jeffery
- Drop changes to code pattern that of_node_get(or other refcount
increasing) followed by of_node_put. That said, but I still have a
change for samsung pinctrl that drops several of_node_put places. If
this is not welcomed, patch 20/20 could be dropped.
- Add Fix tag for patch 1
- Add A-b for patch 4
- Drop unneeded {} in patch 8 Per Dan Carpenter
- Add a new patch 18.
- Moved patch [19,20]/20, in case people are not happy with the changes,
the two patch could be dropped when apply if no v3 patchset.
- Link to v1: https://lore.kernel.org/r/20240501-pinctrl-cleanup-v1-0-797ceca46e5c@nxp.com

---
Peng Fan (20):
      pinctrl: ti: iodelay: Use scope based of_node_put() cleanups
      pinctrl: tegra: Use scope based of_node_put() cleanups
      pinctrl: stm32: Use scope based of_node_put() cleanups
      pinctrl: starfive: Use scope based of_node_put() cleanups
      pinctrl: sprd: Use scope based of_node_put() cleanups
      pinctrl: spear: Use scope based of_node_put() cleanups
      pinctrl: renesas: Use scope based of_node_put() cleanups
      pinctrl: st: Use scope based of_node_put() cleanups
      pinctrl: rockchip: Use scope based of_node_put() cleanups
      pinctrl: equilibrium: Use scope based of_node_put() cleanups
      pinctrl: at91: Use scope based of_node_put() cleanups
      pinctrl: s32cc: Use scope based of_node_put() cleanups
      pinctrl: nomadik: Use scope based of_node_put() cleanups
      pinctrl: mediatek: Use scope based of_node_put() cleanups
      pinctrl: freescale: Use scope based of_node_put() cleanups
      pinctrl: bcm: bcm63xx: Use scope based of_node_put() cleanups
      pinctrl: pinconf-generic: Use scope based of_node_put() cleanups
      pinctrl: freescale: mxs: Fix refcount of child
      pinctrl: k210: Use scope based of_node_put() cleanups
      pinctrl: samsung: Use scope based of_node_put() cleanups

 drivers/pinctrl/bcm/pinctrl-bcm63xx.c              |  4 +--
 drivers/pinctrl/freescale/pinctrl-imx.c            | 25 ++++-----------
 drivers/pinctrl/freescale/pinctrl-imx1-core.c      | 16 +++-------
 drivers/pinctrl/freescale/pinctrl-mxs.c            | 18 ++++-------
 drivers/pinctrl/mediatek/pinctrl-mtk-common.c      |  4 +--
 drivers/pinctrl/mediatek/pinctrl-paris.c           |  4 +--
 drivers/pinctrl/nomadik/pinctrl-abx500.c           |  4 +--
 drivers/pinctrl/nomadik/pinctrl-nomadik.c          |  4 +--
 drivers/pinctrl/nxp/pinctrl-s32cc.c                | 31 ++++++------------
 drivers/pinctrl/pinconf-generic.c                  |  7 ++--
 drivers/pinctrl/pinctrl-at91-pio4.c                |  7 ++--
 drivers/pinctrl/pinctrl-at91.c                     | 14 +++-----
 drivers/pinctrl/pinctrl-equilibrium.c              | 21 +++---------
 drivers/pinctrl/pinctrl-k210.c                     |  7 ++--
 drivers/pinctrl/pinctrl-rockchip.c                 | 11 ++-----
 drivers/pinctrl/pinctrl-st.c                       | 37 +++++++---------------
 drivers/pinctrl/renesas/pinctrl-rza1.c             | 14 +++-----
 drivers/pinctrl/renesas/pinctrl-rzg2l.c            |  7 ++--
 drivers/pinctrl/renesas/pinctrl-rzn1.c             | 23 ++++----------
 drivers/pinctrl/renesas/pinctrl-rzv2m.c            |  7 ++--
 drivers/pinctrl/renesas/pinctrl.c                  |  7 ++--
 drivers/pinctrl/samsung/pinctrl-exynos.c           | 16 +++-------
 drivers/pinctrl/samsung/pinctrl-samsung.c          | 19 +++--------
 drivers/pinctrl/spear/pinctrl-spear.c              | 13 +++-----
 drivers/pinctrl/sprd/pinctrl-sprd.c                | 14 +++-----
 drivers/pinctrl/starfive/pinctrl-starfive-jh7100.c | 27 +++++++---------
 drivers/pinctrl/starfive/pinctrl-starfive-jh7110.c | 18 +++++------
 drivers/pinctrl/stm32/pinctrl-stm32.c              |  4 +--
 drivers/pinctrl/tegra/pinctrl-tegra-xusb.c         |  7 ++--
 drivers/pinctrl/tegra/pinctrl-tegra.c              |  4 +--
 drivers/pinctrl/ti/pinctrl-ti-iodelay.c            | 37 ++++++++--------------
 31 files changed, 133 insertions(+), 298 deletions(-)
---
base-commit: bb7a2467e6beef44a80a17d45ebf2931e7631083
change-id: 20240429-pinctrl-cleanup-e4d461c32648

Best regards,
-- 
Peng Fan <peng.fan@nxp.com>

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