pwm: mxs: Remove legacy methods

Since we now have ->apply(), these are no longer relevant.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

diff --git a/drivers/pwm/pwm-mxs.c b/drivers/pwm/pwm-mxs.c
index 10efd3d..5a6835e 100644 (file)
--- a/drivers/pwm/pwm-mxs.c
+++ b/drivers/pwm/pwm-mxs.c
@@ -110,85 +110,8 @@ static int mxs_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
        return 0;
 }
 
-static int mxs_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
-                         int duty_ns, int period_ns)
-{
-       struct mxs_pwm_chip *mxs = to_mxs_pwm_chip(chip);
-       int ret, div = 0;
-       unsigned int period_cycles, duty_cycles;
-       unsigned long rate;
-       unsigned long long c;
-
-       rate = clk_get_rate(mxs->clk);
-       while (1) {
-               c = rate / cdiv[div];
-               c = c * period_ns;
-               do_div(c, 1000000000);
-               if (c < PERIOD_PERIOD_MAX)
-                       break;
-               div++;
-               if (div >= PERIOD_CDIV_MAX)
-                       return -EINVAL;
-       }
-
-       period_cycles = c;
-       c *= duty_ns;
-       do_div(c, period_ns);
-       duty_cycles = c;
-
-       /*
-        * If the PWM channel is disabled, make sure to turn on the clock
-        * before writing the register. Otherwise, keep it enabled.
-        */
-       if (!pwm_is_enabled(pwm)) {
-               ret = clk_prepare_enable(mxs->clk);
-               if (ret)
-                       return ret;
-       }
-
-       writel(duty_cycles << 16,
-                       mxs->base + PWM_ACTIVE0 + pwm->hwpwm * 0x20);
-       writel(PERIOD_PERIOD(period_cycles) | PERIOD_ACTIVE_HIGH |
-              PERIOD_INACTIVE_LOW | PERIOD_CDIV(div),
-                       mxs->base + PWM_PERIOD0 + pwm->hwpwm * 0x20);
-
-       /*
-        * If the PWM is not enabled, turn the clock off again to save power.
-        */
-       if (!pwm_is_enabled(pwm))
-               clk_disable_unprepare(mxs->clk);
-
-       return 0;
-}
-
-static int mxs_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
-{
-       struct mxs_pwm_chip *mxs = to_mxs_pwm_chip(chip);
-       int ret;
-
-       ret = clk_prepare_enable(mxs->clk);
-       if (ret)
-               return ret;
-
-       writel(1 << pwm->hwpwm, mxs->base + PWM_CTRL + SET);
-
-       return 0;
-}
-
-static void mxs_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
-{
-       struct mxs_pwm_chip *mxs = to_mxs_pwm_chip(chip);
-
-       writel(1 << pwm->hwpwm, mxs->base + PWM_CTRL + CLR);
-
-       clk_disable_unprepare(mxs->clk);
-}
-
 static const struct pwm_ops mxs_pwm_ops = {
        .apply = mxs_pwm_apply,
-       .config = mxs_pwm_config,
-       .enable = mxs_pwm_enable,
-       .disable = mxs_pwm_disable,
        .owner = THIS_MODULE,
 };