Messages in this thread | | | Date | Thu, 31 Mar 2022 15:42:00 -0700 (PDT) | Subject | Re: [PATCH v8 0/4] Determine the number of DMA channels by 'dma-channels' property | From | Palmer Dabbelt <> |
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On Wed, 30 Mar 2022 22:54:47 PDT (-0700), Palmer Dabbelt wrote: > On Wed, 30 Mar 2022 22:21:56 PDT (-0700), vkoul@kernel.org wrote: >> On 30-03-22, 20:15, Palmer Dabbelt wrote: >>> On Mon, 28 Mar 2022 02:52:21 PDT (-0700), zong.li@sifive.com wrote: >>> > The PDMA driver currently assumes there are four channels by default, it >>> > might cause the error if there is actually less than four channels. >>> > Change that by getting number of channel dynamically from device tree. >>> > For backwards-compatible, it uses the default value (i.e. 4) when there >>> > is no 'dma-channels' information in dts. >>> > >>> > This patch set contains the dts and dt-bindings change. >>> > >>> > Changed in v8: >>> > - Rebase on master >>> > - Remove modification of microchip-mpfs.dtsi >>> > - Rename DMA node name of fu540-c000.dtsi >>> > >>> > Changed in v7: >>> > - Rebase on tag v5.17-rc7 >>> > - Modify the subject of patch >>> > >>> > Changed in v6: >>> > - Rebase on tag v5.17-rc6 >>> > - Change sf_pdma.chans[] to a flexible array member. >>> > >>> > Changed in v5: >>> > - Rebase on tag v5.17-rc3 >>> > - Fix typo in dt-bindings and commit message >>> > - Add PDMA versioning scheme for compatible >>> > >>> > Changed in v4: >>> > - Remove cflags of debug use reported-by: kernel test robot <lkp@intel.com> >>> > >>> > Changed in v3: >>> > - Fix allocating wrong size >>> > - Return error if 'dma-channels' is larger than maximum >>> > >>> > Changed in v2: >>> > - Rebase on tag v5.16 >>> > - Use 4 as default value of dma-channels >>> > >>> > Zong Li (4): >>> > dt-bindings: dma-engine: sifive,fu540: Add dma-channels property and >>> > modify compatible >>> > riscv: dts: Add dma-channels property and modify compatible >>> > riscv: dts: rename the node name of dma >>> > dmaengine: sf-pdma: Get number of channel by device tree >>> > >>> > .../bindings/dma/sifive,fu540-c000-pdma.yaml | 19 +++++++++++++-- >>> > arch/riscv/boot/dts/sifive/fu540-c000.dtsi | 5 ++-- >>> > drivers/dma/sf-pdma/sf-pdma.c | 24 ++++++++++++------- >>> > drivers/dma/sf-pdma/sf-pdma.h | 8 ++----- >>> > 4 files changed, 38 insertions(+), 18 deletions(-) >>> >>> Thanks, these are on for-next. >> >> The drivers/dma/ should go thru dmaengine tree. During merge window I >> dont apply the patches > > OK, I can drop this from my tree if you'd like?
Just to follow up from IRC: I'm dropping these from my tree.
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