From mboxrd@z Thu Jan 1 00:00:00 1970 From: maxime.ripard@free-electrons.com (Maxime Ripard) Date: Thu, 28 Sep 2017 17:26:46 +0200 Subject: [PATCH v4 00/11] dmaengine: sun6i: Fixes for H3/A83T, enable A64 In-Reply-To: <3c78e966-2ece-4e67-94de-801aa569089f@rwthex-w2-a.rwth-ad.de> References: <3c78e966-2ece-4e67-94de-801aa569089f@rwthex-w2-a.rwth-ad.de> Message-ID: <20170928152646.jteewxaqqbkw777s@flea> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Sep 28, 2017 at 01:49:17AM +0000, Stefan Br?ns wrote: > Commit 3a03ea763a67 ("dmaengine: sun6i: Add support for Allwinner A83T > (sun8i) variant") and commit f008db8c00c1 ("dmaengine: sun6i: Add support for > Allwinner H3 (sun8i) variant") added support for the A83T resp. H3, but missed > some differences between the original A31 and A83T/H3. > > The first patch adds a callback to the controller config to set the clock > autogating register of different SoC generations, i.e. A31, A23+A83T, H3+later, > and uses it to for the correct clock autogating setting. > > The second patch adds a callback for the burst length setting in the channel > config register, which has different field offsets and new burst widths/lengths, > which differs between H3 and earlier generations > > The third patch restructures some code required for the fourth patch and adds the > burst lengths to the controller config. > > The fourth patch adds the burst widths to the config and adds the handling of the > H3 specific burst widths. > > Patch 5 restructures the code to decouple some controller details (e.g. channel > count) from the compatible string/the config. > > Patches 6, 7 and 8 introduce and use the "dma-chans" property for the A64. Although > register compatible to the H3, the channel count differs and thus it requires a > new compatible. To avoid introduction of new compatibles for each minor variation, > anything but the register model is moved to devicetree properties. There > is at least one SoC (R40) which can then reuse the A64 compatible, the same > would have worked for A83T+V3s. > > Patches 9 and 10 add the DMA controller node to the devicetree and add the DMA > controller reference to the SPI nodes. > > Patch 11 fixes a small error in the devicetree binding example. Applied patches 9-11, thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 801 bytes Desc: not available URL: