Re: [PATCH linux-next v2 1/9] arm64: r8a7795: add dma request number for busif0 ~ busif7

[Jiada Wang]

Hi Morimoto-san


On 2018/10/04 9:55, Kuninori Morimoto wrote:

Hi Jiada

Thank you for your patch

From: Jiada Wang <jiada_w...@mentor.com>

This patch adds dma request number for busif0 ~ busif7
to be used by GEN3 series. GEN2 continues to use rxu/txu
for busif data transfer.

Signed-off-by: Jiada Wang <jiada_w...@mentor.com>
---
  arch/arm64/boot/dts/renesas/r8a7795.dtsi | 164 ++++++++++++++++++++---
  1 file changed, 144 insertions(+), 20 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi 
b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index b5f2273caca4..fc6100eddfed 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -1923,53 +1923,177 @@
                        rcar_sound,ssi {
                                ssi0: ssi-0 {
                                        interrupts = <GIC_SPI 370 
IRQ_TYPE_LEVEL_HIGH>;
-                                       dmas = <&audma0 0x01>, <&audma1 0x02>, <&audma0 
0x15>, <&audma1 0x16>;
-                                       dma-names = "rx", "tx", "rxu", "txu";
+                                       dmas = <&audma0 0x01>, <&audma1 0x02>,
+                                              <&audma0 0x15>, <&audma1 0x16>,
+                                              <&audma0 0x15>, <&audma1 0x16>,
+                                              <&audma0 0x35>, <&audma1 0x36>,
+                                              <&audma0 0x37>, <&audma1 0x38>,
+                                              <&audma0 0x47>, <&audma1 0x48>,
+                                              <&audma0 0x3f>, <&audma1 0x40>,
+                                              <&audma0 0x43>, <&audma1 0x44>,
+                                              <&audma0 0x4f>, <&audma1 0x50>,
+                                              <&audma0 0x53>, <&audma1 0x54>;
+                                       dma-names = "rx", "tx",
+                                                   "rxu", "txu",
+                                                   "rxu0", "txu0",
+                                                   "rxu1", "txu1",
+                                                   "rxu2", "txu2",
+                                                   "rxu3", "txu3",
+                                                   "rxu4", "txu4",
+                                                   "rxu5", "txu5",
+                                                   "rxu6", "txu6",
+                                                   "rxu7", "txu7";

In theory, I think DT side patch should be posted/applied
if driver side patch was accepted.
And, Gen3 side DT doesn't need "rxu/txu" I think.

OK, I will separate DT and driver side change,
will remove DT change in next version.


Thanks,
Jiada