diff options
| author |   Philip, Avinash <avinashphilip@ti.com> | 2013-01-10 18:35:26 +0530 |
|---|---|---|
| committer |   Thierry Reding <thierry.reding@avionic-design.de> | 2013-01-14 08:12:27 +0100 |
| commit | 0074b49b3fa0886047413dbca0508594b1d80c61 (patch) | |
| tree | 036431ce26e24aaf66c44a075024685dc1ba3871 /drivers/pwm | |
| parent | pwm: vt8500: Add polarity support (diff) | |
| download | linux-dev-0074b49b3fa0886047413dbca0508594b1d80c61.tar.xz linux-dev-0074b49b3fa0886047413dbca0508594b1d80c61.zip | |
pwm: pwm-tiehrpwm: Update the clock handling of pwm-tiehrpwm driver
The clock framework has changed and it's now better to invoke
clock_prepare_enable() and clk_disable_unprepare() rather than the
legacy clk_enable() and clk_disable() calls. This patch converts the
pwm-tiehrpwm driver to the new framework.
Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-tiehrpwm.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c index 72a6dd40c9ec..4fcafbfba60e 100644 --- a/drivers/pwm/pwm-tiehrpwm.c +++ b/drivers/pwm/pwm-tiehrpwm.c @@ -318,6 +318,7 @@ static int ehrpwm_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm) { struct ehrpwm_pwm_chip *pc = to_ehrpwm_pwm_chip(chip); unsigned short aqcsfrc_val, aqcsfrc_mask; + int ret; /* Leave clock enabled on enabling PWM */ pm_runtime_get_sync(chip->dev); @@ -341,7 +342,12 @@ static int ehrpwm_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm) configure_polarity(pc, pwm->hwpwm); /* Enable TBCLK before enabling PWM device */ - clk_enable(pc->tbclk); + ret = clk_prepare_enable(pc->tbclk); + if (ret) { + pr_err("Failed to enable TBCLK for %s\n", + dev_name(pc->chip.dev)); + return ret; + } /* Enable time counter for free_run */ ehrpwm_modify(pc->mmio_base, TBCTL, TBCTL_RUN_MASK, TBCTL_FREE_RUN); @@ -372,7 +378,7 @@ static void ehrpwm_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm) ehrpwm_modify(pc->mmio_base, AQCSFRC, aqcsfrc_mask, aqcsfrc_val); /* Disabling TBCLK on PWM disable */ - clk_disable(pc->tbclk); + clk_disable_unprepare(pc->tbclk); /* Stop Time base counter */ ehrpwm_modify(pc->mmio_base, TBCTL, TBCTL_RUN_MASK, TBCTL_STOP_NEXT); |