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| author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2012-08-22 16:16:26 +0200 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2012-08-22 16:16:26 +0200 |
| commit | 2a1325206da5381292c2b268e248702c523cc927 (patch) | |
| tree | 45d684a865eab51b0711d07782b1d8e8ae9d9932 /arch/arm/cpu/armv7/tegra-common/pwfm.c | |
| parent | 2f2f858faddd3cce54f7c64bc8fc8b596c1ddfaf (diff) | |
Initial Toradex Colibri T20 L4T R15 support.T20_LinuxImageV2.0Alpha1_20120808
Diffstat (limited to 'arch/arm/cpu/armv7/tegra-common/pwfm.c')
| -rw-r--r-- | arch/arm/cpu/armv7/tegra-common/pwfm.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/arm/cpu/armv7/tegra-common/pwfm.c b/arch/arm/cpu/armv7/tegra-common/pwfm.c index 5ef4363082..bdc1620724 100644 --- a/arch/arm/cpu/armv7/tegra-common/pwfm.c +++ b/arch/arm/cpu/armv7/tegra-common/pwfm.c @@ -30,8 +30,11 @@ void pwfm_setup(struct pwfm_ctlr *pwfm, int enable, int pulse_width, { u32 reg; - reg = bf_pack(PWFM_ENABLE, enable) | - bf_pack(PWFM_WIDTH, pulse_width) | - bf_pack(PWFM_DIVIDER, freq_divider); - writel(reg, &pwfm->control); + if(pwfm != NULL) + { + reg = bf_pack(PWFM_ENABLE, enable) | + bf_pack(PWFM_WIDTH, pulse_width) | + bf_pack(PWFM_DIVIDER, freq_divider); + writel(reg, &pwfm->control); + } } |