[PATCH v3 06/14] pwm: meson: pass struct pwm_device to meson_pwm_calc()

From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
To: linux-amlogic@lists.infradead.org, linux-pwm@vger.kernel.org,
	thierry.reding@gmail.com
Cc: linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	u.kleine-koenig@pengutronix.de, narmstrong@baylibre.com,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Subject: [PATCH v3 06/14] pwm: meson: pass struct pwm_device to meson_pwm_calc()
Date: Wed, 12 Jun 2019 21:59:03 +0200	[thread overview]
Message-ID: <20190612195911.4442-7-martin.blumenstingl@googlemail.com> (raw)
In-Reply-To: <20190612195911.4442-1-martin.blumenstingl@googlemail.com>

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.

Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
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;
 
-- 
2.22.0

