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Message-ID: <20250813161517.4746-1-wsa+renesas@sang-engineering.com>
Date: Wed, 13 Aug 2025 18:14:46 +0200
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: linux-kernel@...r.kernel.org
Cc: Mark Brown <broonie@...nel.org>,
Wolfram Sang <wsa+renesas@...g-engineering.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Alim Akhtar <alim.akhtar@...sung.com>,
Andrea della Porta <andrea.porta@...e.com>,
Andreas Färber <afaerber@...e.de>,
Andrzej Hajda <andrzej.hajda@...el.com>,
Andy Shevchenko <andy@...nel.org>,
Andy Yan <andy.yan@...k-chips.com>,
Avi Fishman <avifishman70@...il.com>,
Bartosz Golaszewski <brgl@...ev.pl>,
Benjamin Fair <benjaminfair@...gle.com>,
Bjorn Andersson <andersson@...nel.org>,
Chen-Yu Tsai <wens@...e.org>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
David Airlie <airlied@...il.com>,
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Dmitry Torokhov <dmitry.torokhov@...il.com>,
Drew Fustini <fustini@...nel.org>,
dri-devel@...ts.freedesktop.org,
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linux-gpio@...r.kernel.org,
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Xiubo Li <Xiubo.Lee@...il.com>,
Yangtao Li <tiny.windzz@...il.com>,
Zhang Rui <rui.zhang@...el.com>
Subject: [PATCH 00/21] treewide: remove unneeded 'fast_io' parameter in regmap_config
While working on a driver using regmap with MMIO, I wondered if I need
to set 'fast_io' in the config. Turned out I don't need to, so I added
documentation for it with commit ffc72771ff6e ("regmap: Annotate that
MMIO implies fast IO").
This series fixes the existing users in the tree which needlessly set
the flag. They have been found using this coccinelle script:
===
@ match @
expression dev, clk, regs;
identifier config;
@@
(
regmap_init_mmio(dev, regs, &config)
|
devm_regmap_init_mmio(dev, regs, &config)
|
regmap_init_mmio_clk(dev, clk, regs, &config)
|
devm_regmap_init_mmio_clk(dev, clk, regs, &config)
)
@ fix depends on match @
identifier match.config;
@@
struct regmap_config config = {
- .fast_io = true,
};
===
It misses occasions where 'config' is an expression and not an
identifier. These are rare, though, I can fix them manually later. The
advantage of this approach is that it produces no false positives to the
best of my knowledge.
Please apply individually per subsystem. There are no dependencies and
buildbot is happy. Patches are based on 6.17-rc1
Happy hacking,
Wolfram
Wolfram Sang (21):
bus: remove unneeded 'fast_io' parameter in regmap_config
clk: remove unneeded 'fast_io' parameter in regmap_config
gpio: remove unneeded 'fast_io' parameter in regmap_config
drm: remove unneeded 'fast_io' parameter in regmap_config
iio: remove unneeded 'fast_io' parameter in regmap_config
Input: remove unneeded 'fast_io' parameter in regmap_config
mailbox: remove unneeded 'fast_io' parameter in regmap_config
media: remove unneeded 'fast_io' parameter in regmap_config
mfd: remove unneeded 'fast_io' parameter in regmap_config
mmc: remove unneeded 'fast_io' parameter in regmap_config
peci: remove unneeded 'fast_io' parameter in regmap_config
phy: remove unneeded 'fast_io' parameter in regmap_config
pinctrl: remove unneeded 'fast_io' parameter in regmap_config
pmdomain: remove unneeded 'fast_io' parameter in regmap_config
regulator: remove unneeded 'fast_io' parameter in regmap_config
reset: remove unneeded 'fast_io' parameter in regmap_config
rtc: remove unneeded 'fast_io' parameter in regmap_config
soc: remove unneeded 'fast_io' parameter in regmap_config
spi: remove unneeded 'fast_io' parameter in regmap_config
thermal: remove unneeded 'fast_io' parameter in regmap_config
ASoC: remove unneeded 'fast_io' parameter in regmap_config
drivers/bus/bt1-apb.c | 1 -
drivers/clk/actions/owl-common.c | 1 -
drivers/clk/clk-axm5516.c | 1 -
drivers/clk/nxp/clk-lpc32xx.c | 1 -
drivers/clk/qcom/a53-pll.c | 1 -
drivers/clk/qcom/a7-pll.c | 1 -
drivers/clk/qcom/apss-ipq-pll.c | 1 -
drivers/clk/qcom/clk-cbf-8996.c | 1 -
drivers/clk/qcom/clk-cpu-8996.c | 1 -
drivers/clk/qcom/hfpll.c | 1 -
drivers/clk/qcom/ipq-cmn-pll.c | 1 -
drivers/clk/thead/clk-th1520-ap.c | 1 -
drivers/gpio/gpio-mvebu.c | 1 -
drivers/gpio/gpio-sifive.c | 1 -
drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi2.c | 1 -
drivers/gpu/drm/imx/dc/dc-cf.c | 1 -
drivers/gpu/drm/imx/dc/dc-de.c | 1 -
drivers/gpu/drm/imx/dc/dc-ed.c | 2 --
drivers/gpu/drm/imx/dc/dc-fg.c | 1 -
drivers/gpu/drm/imx/dc/dc-fl.c | 1 -
drivers/gpu/drm/imx/dc/dc-fw.c | 2 --
drivers/gpu/drm/imx/dc/dc-ic.c | 1 -
drivers/gpu/drm/imx/dc/dc-lb.c | 2 --
drivers/gpu/drm/imx/dc/dc-tc.c | 1 -
drivers/gpu/drm/imx/ipuv3/imx-tve.c | 2 --
drivers/gpu/drm/rockchip/dw-mipi-dsi2-rockchip.c | 1 -
drivers/iio/adc/sun4i-gpadc-iio.c | 1 -
drivers/input/touchscreen/fsl-imx25-tcq.c | 1 -
drivers/mailbox/qcom-apcs-ipc-mailbox.c | 1 -
drivers/media/cec/platform/stm32/stm32-cec.c | 1 -
drivers/mfd/exynos-lpass.c | 1 -
drivers/mfd/fsl-imx25-tsadc.c | 1 -
drivers/mfd/stm32-lptimer.c | 1 -
drivers/mfd/sun4i-gpadc.c | 1 -
drivers/mmc/host/sdhci_am654.c | 1 -
drivers/peci/controller/peci-npcm.c | 1 -
drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c | 1 -
drivers/phy/rockchip/phy-rockchip-usbdp.c | 1 -
drivers/phy/ti/phy-am654-serdes.c | 1 -
drivers/phy/ti/phy-j721e-wiz.c | 1 -
drivers/pinctrl/pinctrl-rp1.c | 1 -
drivers/pmdomain/imx/gpc.c | 1 -
drivers/regulator/qcom-refgen-regulator.c | 1 -
drivers/reset/reset-intel-gw.c | 1 -
drivers/reset/reset-qcom-pdc.c | 1 -
drivers/reset/reset-th1520.c | 1 -
drivers/rtc/rtc-meson.c | 1 -
drivers/soc/qcom/llcc-qcom.c | 1 -
drivers/soc/qcom/ramp_controller.c | 1 -
drivers/spi/spi-altera-platform.c | 1 -
drivers/thermal/armada_thermal.c | 1 -
drivers/thermal/sun8i_thermal.c | 1 -
sound/soc/fsl/fsl_sai.c | 1 -
53 files changed, 57 deletions(-)
--
2.47.2
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