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| author | Arnd Bergmann <arnd@arndb.de> | 2012-01-09 16:16:29 (GMT) |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-01-09 16:16:29 (GMT) |
| commit | dcf7ec5ee62a78123057a1e286c88ca739717409 (patch) | |
| tree | fa3f19434638a942ba66d236dde4d9aaadf8b370 /arch/arm/plat-mxc/pwm.c | |
| parent | 15db3e823c3246e3bd31fe454f5c8927eb85caf2 (diff) | |
| parent | 142f2101a86ade2d6c9dfbedf82e1b5b31c8fce6 (diff) | |
| download | linux-dcf7ec5ee62a78123057a1e286c88ca739717409.tar.xz | |
Merge branch 'samsung/driver' into next/drivers
Conflicts:
arch/arm/mach-mxs/include/mach/common.h
Pull in previous samsung conflict merges and do a trivial
merge of an mxs double-add conflict.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/plat-mxc/pwm.c')
| -rw-r--r-- | arch/arm/plat-mxc/pwm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/pwm.c b/arch/arm/plat-mxc/pwm.c index 845de59..e032717 100644 --- a/arch/arm/plat-mxc/pwm.c +++ b/arch/arm/plat-mxc/pwm.c @@ -77,6 +77,15 @@ int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns) do_div(c, period_ns); duty_cycles = c; + /* + * according to imx pwm RM, the real period value should be + * PERIOD value in PWMPR plus 2. + */ + if (period_cycles > 2) + period_cycles -= 2; + else + period_cycles = 0; + writel(duty_cycles, pwm->mmio_base + MX3_PWMSAR); writel(period_cycles, pwm->mmio_base + MX3_PWMPR); |