[PATCH v2 01/14] pwm: meson: unify the parameter list of meson_pwm_{enable,disable}

[Martin Blumenstingl]

This is a preparation for a future cleanup. Pass struct pwm_device
instead of passing the individual values required by each function as
these can be obtained for each struct pwm_device instance.

As a nice side-effect the driver now uses "switch (pwm->hwpwm)"
everywhere. Before some functions used "switch (id)" while others used
"switch (pwm->hwpwm)".

No functional changes.

Signed-off-by: Martin Blumenstingl <martin.blumensti...@googlemail.com>
Reviewed-by: Neil Armstrong <narmstr...@baylibre.com>
---
 drivers/pwm/pwm-meson.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/pwm/pwm-meson.c b/drivers/pwm/pwm-meson.c
index 5fef7e925282..3fbbc4128ce8 100644
--- a/drivers/pwm/pwm-meson.c
+++ b/drivers/pwm/pwm-meson.c
@@ -183,15 +183,14 @@ static int meson_pwm_calc(struct meson_pwm *meson,
        return 0;
 }
 
-static void meson_pwm_enable(struct meson_pwm *meson,
-                            struct meson_pwm_channel *channel,
-                            unsigned int id)
+static void meson_pwm_enable(struct meson_pwm *meson, struct pwm_device *pwm)
 {
+       struct meson_pwm_channel *channel = pwm_get_chip_data(pwm);
        u32 value, clk_shift, clk_enable, enable;
        unsigned int offset;
        unsigned long flags;
 
-       switch (id) {
+       switch (pwm->hwpwm) {
        case 0:
                clk_shift = MISC_A_CLK_DIV_SHIFT;
                clk_enable = MISC_A_CLK_EN;
@@ -228,12 +227,12 @@ static void meson_pwm_enable(struct meson_pwm *meson,
        spin_unlock_irqrestore(&meson->lock, flags);
 }
 
-static void meson_pwm_disable(struct meson_pwm *meson, unsigned int id)
+static void meson_pwm_disable(struct meson_pwm *meson, struct pwm_device *pwm)
 {
        u32 value, enable;
        unsigned long flags;
 
-       switch (id) {
+       switch (pwm->hwpwm) {
        case 0:
                enable = MISC_A_EN;
                break;
@@ -266,7 +265,7 @@ static int meson_pwm_apply(struct pwm_chip *chip, struct 
pwm_device *pwm,
                return -EINVAL;
 
        if (!state->enabled) {
-               meson_pwm_disable(meson, pwm->hwpwm);
+               meson_pwm_disable(meson, pwm);
                channel->state.enabled = false;
 
                return 0;
@@ -293,7 +292,7 @@ static int meson_pwm_apply(struct pwm_chip *chip, struct 
pwm_device *pwm,
        }
 
        if (state->enabled && !channel->state.enabled) {
-               meson_pwm_enable(meson, channel, pwm->hwpwm);
+               meson_pwm_enable(meson, pwm);
                channel->state.enabled = true;
        }
 
-- 
2.21.0