From: Neil Armstrong <neil.armstrong@linaro.org>
To: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Thierry Reding" <thierry.reding@gmail.com>,
"Laurent Pinchart" <Laurent.pinchart@ideasonboard.com>
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Subject: Re: [PATCH v2 1/2] pwm: Manage owner assignment implicitly for drivers
Date: Mon, 14 Aug 2023 09:41:21 +0200 [thread overview]
Message-ID: <81500a13-0fed-e9d4-7f51-552b888a98e1@linaro.org> (raw)
In-Reply-To: <20230804142707.412137-2-u.kleine-koenig@pengutronix.de>
On 04/08/2023 16:27, Uwe Kleine-König wrote:
> Instead of requiring each driver to care for assigning the owner member
> of struct pwm_ops, handle that implicitly using a macro. Note that the
> owner member has to be moved to struct pwm_chip, as the ops structure
> usually lives in read-only memory and so cannot be modified.
>
> The upside is that new lowlevel drivers cannot forget the assignment and
> save one line each. The pwm-crc driver didn't assign .owner, that's not
> a problem in practise though as the driver cannot be compiled as a
> module.
>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> ---
> drivers/gpio/gpio-mvebu.c | 1 -
> drivers/gpu/drm/bridge/ti-sn65dsi86.c | 1 -
> drivers/leds/rgb/leds-qcom-lpg.c | 1 -
> drivers/pwm/core.c | 24 ++++++++++++++----------
> drivers/pwm/pwm-ab8500.c | 1 -
> drivers/pwm/pwm-apple.c | 1 -
> drivers/pwm/pwm-atmel-hlcdc.c | 1 -
> drivers/pwm/pwm-atmel-tcb.c | 1 -
> drivers/pwm/pwm-atmel.c | 1 -
> drivers/pwm/pwm-bcm-iproc.c | 1 -
> drivers/pwm/pwm-bcm-kona.c | 1 -
> drivers/pwm/pwm-bcm2835.c | 1 -
> drivers/pwm/pwm-berlin.c | 1 -
> drivers/pwm/pwm-brcmstb.c | 1 -
> drivers/pwm/pwm-clk.c | 1 -
> drivers/pwm/pwm-clps711x.c | 1 -
> drivers/pwm/pwm-cros-ec.c | 1 -
> drivers/pwm/pwm-dwc.c | 1 -
> drivers/pwm/pwm-ep93xx.c | 1 -
> drivers/pwm/pwm-fsl-ftm.c | 1 -
> drivers/pwm/pwm-hibvt.c | 1 -
> drivers/pwm/pwm-img.c | 1 -
> drivers/pwm/pwm-imx-tpm.c | 1 -
> drivers/pwm/pwm-imx1.c | 1 -
> drivers/pwm/pwm-imx27.c | 1 -
> drivers/pwm/pwm-intel-lgm.c | 1 -
> drivers/pwm/pwm-iqs620a.c | 1 -
> drivers/pwm/pwm-jz4740.c | 1 -
> drivers/pwm/pwm-keembay.c | 1 -
> drivers/pwm/pwm-lp3943.c | 1 -
> drivers/pwm/pwm-lpc18xx-sct.c | 1 -
> drivers/pwm/pwm-lpc32xx.c | 1 -
> drivers/pwm/pwm-lpss.c | 1 -
> drivers/pwm/pwm-mediatek.c | 1 -
> drivers/pwm/pwm-meson.c | 1 -
Acked-by: Neil Armstrong <neil.armstrong@linaro.org> # pwm-meson
> drivers/pwm/pwm-microchip-core.c | 1 -
> drivers/pwm/pwm-mtk-disp.c | 1 -
> drivers/pwm/pwm-mxs.c | 1 -
> drivers/pwm/pwm-ntxec.c | 1 -
> drivers/pwm/pwm-omap-dmtimer.c | 1 -
> drivers/pwm/pwm-pca9685.c | 1 -
> drivers/pwm/pwm-pxa.c | 1 -
> drivers/pwm/pwm-raspberrypi-poe.c | 1 -
> drivers/pwm/pwm-rcar.c | 1 -
> drivers/pwm/pwm-renesas-tpu.c | 1 -
> drivers/pwm/pwm-rockchip.c | 1 -
> drivers/pwm/pwm-rz-mtu3.c | 1 -
> drivers/pwm/pwm-samsung.c | 1 -
> drivers/pwm/pwm-sifive.c | 1 -
> drivers/pwm/pwm-sl28cpld.c | 1 -
> drivers/pwm/pwm-spear.c | 1 -
> drivers/pwm/pwm-sprd.c | 1 -
> drivers/pwm/pwm-sti.c | 1 -
> drivers/pwm/pwm-stm32-lp.c | 1 -
> drivers/pwm/pwm-stm32.c | 1 -
> drivers/pwm/pwm-stmpe.c | 1 -
> drivers/pwm/pwm-sun4i.c | 1 -
> drivers/pwm/pwm-sunplus.c | 1 -
> drivers/pwm/pwm-tegra.c | 1 -
> drivers/pwm/pwm-tiecap.c | 1 -
> drivers/pwm/pwm-tiehrpwm.c | 1 -
> drivers/pwm/pwm-twl-led.c | 2 --
> drivers/pwm/pwm-twl.c | 2 --
> drivers/pwm/pwm-visconti.c | 1 -
> drivers/pwm/pwm-vt8500.c | 1 -
> drivers/pwm/pwm-xilinx.c | 1 -
> drivers/staging/greybus/pwm.c | 1 -
> include/linux/pwm.h | 10 ++++++----
> 68 files changed, 20 insertions(+), 82 deletions(-)
>
<snip>
> diff --git a/drivers/pwm/pwm-meson.c b/drivers/pwm/pwm-meson.c
> index 25519cddc2a9..5bea53243ed2 100644
> --- a/drivers/pwm/pwm-meson.c
> +++ b/drivers/pwm/pwm-meson.c
> @@ -335,7 +335,6 @@ static const struct pwm_ops meson_pwm_ops = {
> .free = meson_pwm_free,
> .apply = meson_pwm_apply,
> .get_state = meson_pwm_get_state,
> - .owner = THIS_MODULE,
> };
>
> static const char * const pwm_meson8b_parent_names[] = {
<snip>
next prev parent reply other threads:[~2023-08-14 7:41 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-04 14:27 [PATCH v2 0/2] pwm: Manage owner assignment implicitly for drivers Uwe Kleine-König
2023-08-04 14:27 ` [PATCH v2 1/2] " Uwe Kleine-König
2023-08-04 18:51 ` Andy Shevchenko
2023-08-04 18:56 ` Florian Fainelli
2023-08-04 19:06 ` Jernej Škrabec
2023-08-05 20:36 ` Andi Shyti
2023-08-07 0:46 ` nobuhiro1.iwamatsu
2023-08-09 12:29 ` Heiko Stuebner
2023-08-09 13:38 ` Michael Walle
2023-08-14 7:41 ` Neil Armstrong [this message]
2023-08-08 13:18 ` [PATCH v2 0/2] " Linus Walleij
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