On Wed, 30 Mar 2022 22:21:56 PDT (-0700), vkoul@xxxxxxxxxx wrote:
On 30-03-22, 20:15, Palmer Dabbelt wrote:
On Mon, 28 Mar 2022 02:52:21 PDT (-0700), zong.li@xxxxxxxxxx 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@xxxxxxxxx>
>
> 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?
