diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-11-23 11:04:05 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-11-23 11:04:05 +0300 |
| commit | 92907cbbef8625bb3998d1eb385fc88f23c97a3f (patch) | |
| tree | 15626ff9287e37c3cb81c7286d6db5a7fd77c854 /drivers/pwm/pwm-atmel-tcb.c | |
| parent | 15fbfccfe92c62ae8d1ecc647c44157ed01ac02e (diff) | |
| parent | 1ec218373b8ebda821aec00bb156a9c94fad9cd4 (diff) | |
| download | linux-92907cbbef8625bb3998d1eb385fc88f23c97a3f.tar.xz | |
Merge tag 'v4.4-rc2' into drm-intel-next-queued
Linux 4.4-rc2
Backmerge to get at
commit 1b0e3a049efe471c399674fd954500ce97438d30
Author: Imre Deak <imre.deak@intel.com>
Date: Thu Nov 5 23:04:11 2015 +0200
drm/i915/skl: disable display side power well support for now
so that we can proplery re-eanble skl power wells in -next.
Conflicts are just adjacent lines changed, except for intel_fbdev.c
where we need to interleave the changs. Nothing nefarious.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/pwm/pwm-atmel-tcb.c')
| -rw-r--r-- | drivers/pwm/pwm-atmel-tcb.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/drivers/pwm/pwm-atmel-tcb.c b/drivers/pwm/pwm-atmel-tcb.c index 6da01b3bf6f4..75db585a2a94 100644 --- a/drivers/pwm/pwm-atmel-tcb.c +++ b/drivers/pwm/pwm-atmel-tcb.c @@ -305,7 +305,7 @@ static int atmel_tcb_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, */ if (i == 5) { i = slowclk; - rate = 32768; + rate = clk_get_rate(tc->slow_clk); min = div_u64(NSEC_PER_SEC, rate); max = min << tc->tcb_config->counter_width; @@ -387,9 +387,9 @@ static int atmel_tcb_pwm_probe(struct platform_device *pdev) tcbpwm = devm_kzalloc(&pdev->dev, sizeof(*tcbpwm), GFP_KERNEL); if (tcbpwm == NULL) { - atmel_tc_free(tc); + err = -ENOMEM; dev_err(&pdev->dev, "failed to allocate memory\n"); - return -ENOMEM; + goto err_free_tc; } tcbpwm->chip.dev = &pdev->dev; @@ -400,17 +400,27 @@ static int atmel_tcb_pwm_probe(struct platform_device *pdev) tcbpwm->chip.npwm = NPWM; tcbpwm->tc = tc; + err = clk_prepare_enable(tc->slow_clk); + if (err) + goto err_free_tc; + spin_lock_init(&tcbpwm->lock); err = pwmchip_add(&tcbpwm->chip); - if (err < 0) { - atmel_tc_free(tc); - return err; - } + if (err < 0) + goto err_disable_clk; platform_set_drvdata(pdev, tcbpwm); return 0; + +err_disable_clk: + clk_disable_unprepare(tcbpwm->tc->slow_clk); + +err_free_tc: + atmel_tc_free(tc); + + return err; } static int atmel_tcb_pwm_remove(struct platform_device *pdev) @@ -418,6 +428,8 @@ static int atmel_tcb_pwm_remove(struct platform_device *pdev) struct atmel_tcb_pwm_chip *tcbpwm = platform_get_drvdata(pdev); int err; + clk_disable_unprepare(tcbpwm->tc->slow_clk); + err = pwmchip_remove(&tcbpwm->chip); if (err < 0) return err; |