From: Neil Armstrong <narmstrong@baylibre.com>
To: Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
linux-amlogic@lists.infradead.org, linux-pwm@vger.kernel.org,
thierry.reding@gmail.com, u.kleine-koenig@pengutronix.de
Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 06/14] pwm: meson: pass struct pwm_device to meson_pwm_calc()
Date: Mon, 27 May 2019 14:27:02 +0200 [thread overview]
Message-ID: <9d0d7be1-af52-a7db-79ec-3b17b3190897@baylibre.com> (raw)
In-Reply-To: <20190525181133.4875-7-martin.blumenstingl@googlemail.com>
On 25/05/2019 20:11, Martin Blumenstingl wrote:
> meson_pwm_calc() is the last function that accepts a struct
> meson_pwm_channel. meson_pwm_enable(), meson_pwm_disable() and
> meson_pwm_apply() for example are all taking a struct pwm_device as
> parameter. When they need the struct meson_pwm_channel these functions
> simply call pwm_get_chip_data() internally.
>
> Make meson_pwm_calc() consistent with the other functions in the
> meson-pwm driver by passing struct pwm_device to it as well. The value
> of the "id" parameter is actually pwm->hwpwm, but the driver never read
> the "id" parameter, which is why there's no replacement for it in the
> new code.
>
> No functional changes.
>
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> ---
> drivers/pwm/pwm-meson.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/pwm/pwm-meson.c b/drivers/pwm/pwm-meson.c
> index 39ea119add7b..d6eb4d04d5c9 100644
> --- a/drivers/pwm/pwm-meson.c
> +++ b/drivers/pwm/pwm-meson.c
> @@ -114,10 +114,10 @@ static void meson_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
> clk_disable_unprepare(channel->clk);
> }
>
> -static int meson_pwm_calc(struct meson_pwm *meson,
> - struct meson_pwm_channel *channel,
> +static int meson_pwm_calc(struct meson_pwm *meson, struct pwm_device *pwm,
> struct pwm_state *state)
> {
> + struct meson_pwm_channel *channel = pwm_get_chip_data(pwm);
> unsigned int duty, period, pre_div, cnt, duty_cnt;
> unsigned long fin_freq = -1;
> u64 fin_ps;
> @@ -280,7 +280,7 @@ static int meson_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
> if (state->period != channel->state.period ||
> state->duty_cycle != channel->state.duty_cycle ||
> state->polarity != channel->state.polarity) {
> - err = meson_pwm_calc(meson, channel, state);
> + err = meson_pwm_calc(meson, pwm, state);
> if (err < 0)
> return err;
>
>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
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next prev parent reply other threads:[~2019-05-27 12:27 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-25 18:11 [PATCH 00/14] pwm-meson: cleanups and improvements Martin Blumenstingl
2019-05-25 18:11 ` [PATCH 01/14] pwm: meson: unify the parameter list of meson_pwm_{enable, disable} Martin Blumenstingl
2019-05-27 12:25 ` Neil Armstrong
2019-05-25 18:11 ` [PATCH 02/14] pwm: meson: use devm_clk_get_optional() to get the input clock Martin Blumenstingl
2019-05-27 12:25 ` Neil Armstrong
2019-05-25 18:11 ` [PATCH 03/14] pwm: meson: use GENMASK and FIELD_PREP for the lo and hi values Martin Blumenstingl
2019-05-27 12:25 ` Neil Armstrong
2019-05-25 18:11 ` [PATCH 04/14] pwm: meson: change MISC_CLK_SEL_WIDTH to MISC_CLK_SEL_MASK Martin Blumenstingl
2019-05-27 12:26 ` Neil Armstrong
2019-05-27 17:46 ` Martin Blumenstingl
2019-05-27 18:00 ` Uwe Kleine-König
2019-05-28 18:04 ` Martin Blumenstingl
2019-05-25 18:11 ` [PATCH 05/14] pwm: meson: don't duplicate the polarity internally Martin Blumenstingl
2019-05-27 12:26 ` Neil Armstrong
2019-05-25 18:11 ` [PATCH 06/14] pwm: meson: pass struct pwm_device to meson_pwm_calc() Martin Blumenstingl
2019-05-27 12:27 ` Neil Armstrong [this message]
2019-05-25 18:11 ` [PATCH 07/14] pwm: meson: add the meson_pwm_channel data to struct meson_pwm Martin Blumenstingl
2019-05-27 12:27 ` Neil Armstrong
2019-05-27 17:52 ` Martin Blumenstingl
2019-05-25 18:11 ` [PATCH 08/14] pwm: meson: add the per-channel register offsets and bits in a struct Martin Blumenstingl
2019-05-27 12:28 ` Neil Armstrong
2019-05-27 17:57 ` Martin Blumenstingl
2019-05-28 8:11 ` Neil Armstrong
2019-05-25 18:11 ` [PATCH 09/14] pwm: meson: move pwm_set_chip_data() to meson_pwm_request() Martin Blumenstingl
2019-05-27 12:30 ` Neil Armstrong
2019-05-25 18:11 ` [PATCH 10/14] pwm: meson: simplify the calculation of the pre-divider and count Martin Blumenstingl
2019-05-26 19:41 ` Uwe Kleine-König
2019-05-27 12:37 ` Neil Armstrong
2019-05-25 18:11 ` [PATCH 11/14] pwm: meson: read the full hardware state in meson_pwm_get_state() Martin Blumenstingl
2019-05-27 12:31 ` Neil Armstrong
2019-05-25 18:11 ` [PATCH 12/14] pwm: meson: don't cache struct pwm_state internally Martin Blumenstingl
2019-05-27 12:31 ` Neil Armstrong
2019-05-25 18:11 ` [PATCH 13/14] pwm: meson: add support PWM_POLARITY_INVERSED when disabling Martin Blumenstingl
2019-05-27 12:33 ` Neil Armstrong
2019-05-27 17:50 ` Martin Blumenstingl
2019-05-25 18:11 ` [PATCH 14/14] pwm: meson: add documentation to the driver Martin Blumenstingl
2019-05-27 12:33 ` Neil Armstrong
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