diff options
| author | Serge Semin <[email protected]> | 2020-05-15 13:47:40 +0300 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2020-05-15 18:54:11 +0100 |
| commit | 7db097dcddef6718aee850d9d9ba4a29c8a9c7d9 (patch) | |
| tree | 464bfa84a6fdf2f83287ba6fc137e7c409dfa50c | |
| parent | b271cf339b03267a7abde4454ea881de9b3af614 (diff) | |
spi: dw: Add Tx/Rx DMA properties
Since commit 22d48ad7bfac ("spi: dw: Add Elkhart Lake PSE DMA support")
the spi-dw-mid.c module supports a platform DMA engine handling the DW APB
SSI controller requests. Lets alter the DW SPI bindings file to accept the
Rx and Tx DMA line specifiers.
Signed-off-by: Serge Semin <[email protected]>
Cc: Georgy Vlasov <[email protected]>
Cc: Ramil Zaripov <[email protected]>
Cc: Alexey Malahov <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Paul Burton <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Allison Randal <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Gareth Williams <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
| -rw-r--r-- | Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt index 7a4702edf896..020e3168ee41 100644 --- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt +++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.txt @@ -23,6 +23,8 @@ Optional properties: - num-cs : The number of chipselects. If omitted, this will default to 4. - reg-io-width : The I/O register width (in bytes) implemented by this device. Supported values are 2 or 4 (the default). +- dmas : Phandle + identifiers of Tx and Rx DMA channels. +- dma-names : Contains the names of the DMA channels. Must be "tx" and "rx". Child nodes as per the generic SPI binding. |