[PATCH 3/4] spi: dt-bindings: qup: Document interconnects

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



When the SPI QUP controller is used together with a DMA engine it needs
to vote for the interconnect path to the DRAM. Otherwise it may be
unable to access the memory quickly enough.

Signed-off-by: Stephan Gerhold <stephan.gerhold@xxxxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/spi/qcom,spi-qup.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/qcom,spi-qup.yaml b/Documentation/devicetree/bindings/spi/qcom,spi-qup.yaml
index 1e498a791406..88be13268962 100644
--- a/Documentation/devicetree/bindings/spi/qcom,spi-qup.yaml
+++ b/Documentation/devicetree/bindings/spi/qcom,spi-qup.yaml
@@ -44,6 +44,9 @@ properties:
       - const: tx
       - const: rx
 
+  interconnects:
+    maxItems: 1
+
   interrupts:
     maxItems: 1
 
@@ -67,6 +70,7 @@ unevaluatedProperties: false
 examples:
   - |
     #include <dt-bindings/clock/qcom,gcc-msm8996.h>
+    #include <dt-bindings/interconnect/qcom,msm8996.h>
     #include <dt-bindings/interrupt-controller/arm-gic.h>
     #include <dt-bindings/power/qcom-rpmpd.h>
 
@@ -84,6 +88,7 @@ examples:
         dma-names = "tx", "rx";
         power-domains = <&rpmpd MSM8996_VDDCX>;
         operating-points-v2 = <&spi_opp_table>;
+        interconnects = <&pnoc MASTER_BLSP_1 &bimc SLAVE_EBI_CH0>;
         #address-cells = <1>;
         #size-cells = <0>;
     };

-- 
2.39.2




[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [Linux for Sparc]     [IETF Annouce]     [Security]     [Bugtraq]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux