From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexandre Belloni Date: Tue, 06 Oct 2015 10:09:35 +0000 Subject: Re: [PATCH v2 01/10] pwm: introduce default period and polarity concepts Message-Id: <20151006100935.GK2694@piout.net> List-Id: References: <1437406327-6207-1-git-send-email-boris.brezillon@free-electrons.com> <1437406327-6207-2-git-send-email-boris.brezillon@free-electrons.com> In-Reply-To: <1437406327-6207-2-git-send-email-boris.brezillon@free-electrons.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org On 20/07/2015 at 17:31:58 +0200, Boris Brezillon wrote : > When requested by a user, the PWM is assigned a default period and polarity > extracted from the DT, the platform data or statically set by the driver. > Those default values are currently stored in the period and polarity > fields of the pwm_device struct, but they will be stored somewhere else > once we have introduced the architecture allowing for hardware state > retrieval. > > The pwm_set_default_polarity and pwm_set_default_period should only be > used by PWM drivers or the PWM core infrastructure to specify the > default period and polarity values. > > PWM users might call the pwm_get_default_period to query the default > period value. There is currently no helper to query the default > polarity, but it might be added later on if there is a need for it. > > This patch also modifies all the places where the default helpers should > be used in place of the standard ones. > > Signed-off-by: Boris Brezillon Acked-by: Alexandre Belloni -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com