Messages in this thread | | | Date | Wed, 30 Mar 2022 22:54:47 -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 22:21:56 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?
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