[PATCH 1/2] arm64: dts: renesas: rcar-gen3: Increase CANFD clock rates

[Geert Uytterhoeven]

Currently, all R-Car Gen3 .dtsi files configure the CANFD core clocks to
40 MHz, which limits CAN-FD data transfer rates to 4 Mbps.  However, all
R-Car Gen3 SoCs except for R-Car D3 support CANFD clock rates up to 80
MHz.

Now the R-Car CAN-FD driver has gained support for Transceiver Delay
Compensation, increase all appropriate CANFD clock rates to the
documented maximum, to support data rates up to 8 Mbps.

Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>
---
 arch/arm64/boot/dts/renesas/r8a77951.dtsi | 2 +-
 arch/arm64/boot/dts/renesas/r8a77960.dtsi | 2 +-
 arch/arm64/boot/dts/renesas/r8a77961.dtsi | 2 +-
 arch/arm64/boot/dts/renesas/r8a77965.dtsi | 2 +-
 arch/arm64/boot/dts/renesas/r8a77970.dtsi | 2 +-
 arch/arm64/boot/dts/renesas/r8a77980.dtsi | 2 +-
 arch/arm64/boot/dts/renesas/r8a77990.dtsi | 2 +-
 7 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a77951.dtsi b/arch/arm64/boot/dts/renesas/r8a77951.dtsi
index 6ee9cdeb5a3ab478..c389ebc7e6ce8f00 100644
--- a/arch/arm64/boot/dts/renesas/r8a77951.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77951.dtsi
@@ -1373,7 +1373,7 @@ canfd: can at e66c0000 {
 			       <&can_clk>;
 			clock-names = "fck", "canfd", "can_clk";
 			assigned-clocks = <&cpg CPG_CORE R8A7795_CLK_CANFD>;
-			assigned-clock-rates = <40000000>;
+			assigned-clock-rates = <80000000>;
 			power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
 			resets = <&cpg 914>;
 			status = "disabled";
diff --git a/arch/arm64/boot/dts/renesas/r8a77960.dtsi b/arch/arm64/boot/dts/renesas/r8a77960.dtsi
index a323ac47ca70f3db..6d039019905ded0a 100644
--- a/arch/arm64/boot/dts/renesas/r8a77960.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77960.dtsi
@@ -1245,7 +1245,7 @@ canfd: can at e66c0000 {
 			       <&can_clk>;
 			clock-names = "fck", "canfd", "can_clk";
 			assigned-clocks = <&cpg CPG_CORE R8A7796_CLK_CANFD>;
-			assigned-clock-rates = <40000000>;
+			assigned-clock-rates = <80000000>;
 			power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
 			resets = <&cpg 914>;
 			status = "disabled";
diff --git a/arch/arm64/boot/dts/renesas/r8a77961.dtsi b/arch/arm64/boot/dts/renesas/r8a77961.dtsi
index 49f6d31c5903b8b3..1637b534fc68b19d 100644
--- a/arch/arm64/boot/dts/renesas/r8a77961.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77961.dtsi
@@ -1245,7 +1245,7 @@ canfd: can at e66c0000 {
 			       <&can_clk>;
 			clock-names = "fck", "canfd", "can_clk";
 			assigned-clocks = <&cpg CPG_CORE R8A77961_CLK_CANFD>;
-			assigned-clock-rates = <40000000>;
+			assigned-clock-rates = <80000000>;
 			power-domains = <&sysc R8A77961_PD_ALWAYS_ON>;
 			resets = <&cpg 914>;
 			status = "disabled";
diff --git a/arch/arm64/boot/dts/renesas/r8a77965.dtsi b/arch/arm64/boot/dts/renesas/r8a77965.dtsi
index 136a22ca50b78674..353a771870893994 100644
--- a/arch/arm64/boot/dts/renesas/r8a77965.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77965.dtsi
@@ -1108,7 +1108,7 @@ canfd: can at e66c0000 {
 			       <&can_clk>;
 			clock-names = "fck", "canfd", "can_clk";
 			assigned-clocks = <&cpg CPG_CORE R8A77965_CLK_CANFD>;
-			assigned-clock-rates = <40000000>;
+			assigned-clock-rates = <80000000>;
 			power-domains = <&sysc R8A77965_PD_ALWAYS_ON>;
 			resets = <&cpg 914>;
 			status = "disabled";
diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
index 01744496805c3200..e7a5800bf74216fa 100644
--- a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
@@ -568,7 +568,7 @@ canfd: can at e66c0000 {
 				 <&can_clk>;
 			clock-names = "fck", "canfd", "can_clk";
 			assigned-clocks = <&cpg CPG_CORE R8A77970_CLK_CANFD>;
-			assigned-clock-rates = <40000000>;
+			assigned-clock-rates = <80000000>;
 			power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
 			resets = <&cpg 914>;
 			status = "disabled";
diff --git a/arch/arm64/boot/dts/renesas/r8a77980.dtsi b/arch/arm64/boot/dts/renesas/r8a77980.dtsi
index f7e506ad7a211a57..964aa14f3e65d925 100644
--- a/arch/arm64/boot/dts/renesas/r8a77980.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77980.dtsi
@@ -621,7 +621,7 @@ canfd: can at e66c0000 {
 				 <&can_clk>;
 			clock-names = "fck", "canfd", "can_clk";
 			assigned-clocks = <&cpg CPG_CORE R8A77980_CLK_CANFD>;
-			assigned-clock-rates = <40000000>;
+			assigned-clock-rates = <80000000>;
 			power-domains = <&sysc R8A77980_PD_ALWAYS_ON>;
 			resets = <&cpg 914>;
 			status = "disabled";
diff --git a/arch/arm64/boot/dts/renesas/r8a77990.dtsi b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
index 6b8742045836b9b9..e16ede6eb3791ad1 100644
--- a/arch/arm64/boot/dts/renesas/r8a77990.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
@@ -1061,7 +1061,7 @@ canfd: can at e66c0000 {
 			       <&can_clk>;
 			clock-names = "fck", "canfd", "can_clk";
 			assigned-clocks = <&cpg CPG_CORE R8A77990_CLK_CANFD>;
-			assigned-clock-rates = <40000000>;
+			assigned-clock-rates = <80000000>;
 			power-domains = <&sysc R8A77990_PD_ALWAYS_ON>;
 			resets = <&cpg 914>;
 			status = "disabled";
-- 
2.43.0