Hi Kishon, On Wed, Feb 06, 2019 at 06:00:19PM +0530, Kishon Vijay Abraham I wrote: > On 06/02/19 5:55 PM, Maxime Ripard wrote: > > On Wed, Feb 06, 2019 at 05:43:12PM +0530, Kishon Vijay Abraham I wrote: > >> On 05/02/19 2:16 PM, Daniel Vetter wrote: > >>> On Mon, Feb 04, 2019 at 03:33:31PM +0530, Kishon Vijay Abraham I wrote: > >>>> > >>>> > >>>> On 21/01/19 9:15 PM, Maxime Ripard wrote: > >>>>> Hi, > >>>>> > >>>>> Here is a set of patches to allow the phy framework consumers to test and > >>>>> apply runtime configurations. > >>>>> > >>>>> This is needed to support more phy classes that require tuning based on > >>>>> parameters depending on the current use case of the device, in addition to > >>>>> the power state management already provided by the current functions. > >>>>> > >>>>> A first test bed for that API are the MIPI D-PHY devices. There's a number > >>>>> of solutions that have been used so far to support these phy, most of the > >>>>> time being an ad-hoc driver in the consumer. > >>>>> > >>>>> That approach has a big shortcoming though, which is that this is quite > >>>>> difficult to deal with consumers integrated with multiple variants of phy, > >>>>> of multiple consumers integrated with the same phy. > >>>>> > >>>>> The latter case can be found in the Cadence DSI bridge, and the CSI > >>>>> transceiver and receivers. All of them are integrated with the same phy, or > >>>>> can be integrated with different phy, depending on the implementation. > >>>>> > >>>>> I've looked at all the MIPI DSI drivers I could find, and gathered all the > >>>>> parameters I could find. The interface should be complete, and most of the > >>>>> drivers can be converted in the future. The current set converts two of > >>>>> them: the above mentionned Cadence DSI driver so that the v4l2 drivers can > >>>>> use them, and the Allwinner MIPI-DSI driver. > >>>> > >>>> Can the PHY changes go independently of the consumer drivers? or else I'll need > >>>> ACKs from the GPU MAINTAINER. > >>> > >>> Maxime is a gpu maintainer, so you're all good :-) > >> > >> cool.. I've merged all the patches except drm/bridge. > >> > >> Please see if everything looks okay once it shows up in phy -next (give a day) > > > > Thanks! > > > > If possible (and if that's still an option), it would be better if the > > sun6i related patches (patches 4 and 5) would go through the DRM tree > > (with your Acked-by of course). > > > > We have a number of patches in flight that have a decent chance to > > conflict with patch 4. > > Sure. Dropped patches 4 and 5 from my tree. Thanks! I've pushed the rest into drm-misc. Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
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