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3 Commits

Author SHA1 Message Date
Thierry Reding
8c0216f377 pwm: Remove .can_sleep from struct pwm_chip 
All PWM devices have been marked as "might sleep" since v4.5, there is
no longer a need to differentiate on a per-chip basis.

Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
 2017-01-04 09:40:54 +01:00
Vladimir Zapolskiy
c5857e3f94 pwm: brcmstb: Fix check of devm_ioremap_resource() return code 
The change fixes potential oops while accessing iomem on invalid address
if devm_ioremap_resource() fails due to some reason.

The devm_ioremap_resource() function returns ERR_PTR() and never returns
NULL, which makes useless a following check for NULL.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Fixes: 3a9f595702 ("pwm: Add Broadcom BCM7038 PWM controller support")
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
 2016-03-23 17:11:45 +01:00
Florian Fainelli
3a9f595702 pwm: Add Broadcom BCM7038 PWM controller support 
Add support for the BCM7038-style PWM controller found in all BCM7xxx STB SoCs.
This controller has a hardcoded 2 channels per controller, and cascades a
variable frequency generator on top of a fixed frequency generator which offers
a range of a 148ns period all the way to ~622ms periods.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
 2015-10-06 16:07:27 +02:00