From mboxrd@z Thu Jan 1 00:00:00 1970 From: maxime.ripard@free-electrons.com (Maxime Ripard) Date: Fri, 23 Oct 2015 08:05:45 +0200 Subject: [PATCH v4 0/4] simplefb: Add regulator handling support In-Reply-To: <1445572241-13259-1-git-send-email-wens@csie.org> References: <1445572241-13259-1-git-send-email-wens@csie.org> Message-ID: <20151023060545.GE10947@lukather> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, Oct 23, 2015 at 11:50:37AM +0800, Chen-Yu Tsai wrote: > Hi everyone, > > This is v4 of the simplefb regulator support series. This series adds > regulator claiming and enabling support for simplefb. > > Changes since v4: > - Fixed inverted logic when testing the property name. > - Fixed regulator supply name string copy length off by 1. > - Added real world user, MSI Primo 81 dts patches. > > Changes since v3: > - Dropped extra "if" which is always true, leftover from v1. > - Updated commit message of patch 1 > > Sometimes the simplefb display output path consits of external conversion > chips and/or LCD drivers and backlights. These devices normally have > GPIOs to turn them on and/or bring them out of reset, and regulators > supplying power to them. > > While the kernel does not touch unclaimed GPIOs, the regulator core > happily disables unused regulators. Thus we need simplefb to claim > and enable the regulators used throughout the display pipeline. > > The binding supports any named regulator supplies under its device > node. The driver will look through its properties, and claim any > regulators by matching "*-supply", as Mark suggested. > > I've not done a generic helper in the regulator core yet, instead doing > the regulator property handling in the simplefb code for now. > > > Patch 1 adds the regulator properties to the DT binding. > > Patch 2 adds code to the simplefb driver to claim and enable regulators. > Hans, I dropped your Reviewed-by tag from this patch. > > Patch 3 adds labels to the simplefb device nodes in sun6i-a31.dtsi > so we can reference them in the board dts files, like in the next > patch. > > Patch 4 adds a dts file for MSI's Primo 81 tablet. Applied 3 and 4. Thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: Digital signature URL: