From: Ajit Pal Singh <ajitpal.singh@st.com>
Date: Thu, 29 Jan 2015 09:04:43 +0000 (+0530)
Subject: pwm: sti: Maintain a bitmap of configured devices
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~47^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cd264b6a6559caa74579b5afca11379ddde92dca;p=pandora-kernel.git

pwm: sti: Maintain a bitmap of configured devices

This patch introduces a bitmap which is used to keep track of the
pwm channels which have been configured in a pwm chip.

The method used earlier to find the number of configured channels,
was to count the pwmdevices with PWMF_REQUESTED field set
and period value configured. This was not correct and failed
when of_pwm_get()/pwm_get() and then pwm_config() was used.

Signed-off-by: Ajit Pal Singh <ajitpal.singh@st.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
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