[PATCH 3/3] arm64: dts: imx8mq: Declare the PCIe extref clock

[Rudi Heitbaum]

Boards feeding PCIe REF_CLK from an off-chip oscillator described it as
the "pcie_bus" clock, which the driver never looks up by name and which
therefore selects nothing. The oscillator was used only because the
driver forced IMX8MQ_GPR_PCIE_REF_USE_PAD unconditionally.

Now that the selection follows the "extref" clock, name the oscillator
explicitly on every board that depends on it so the behaviour is
unchanged. The "pcie_bus" entries are left alone.

Endpoint nodes are not touched: they are all disabled and use a separate
binding.

Signed-off-by: Rudi Heitbaum <rudi@xxxxxxxxxxxx>
---
 arch/arm64/boot/dts/freescale/imx8mq-evk.dts              | 8 ++++++--
 .../boot/dts/freescale/imx8mq-kontron-pitx-imx8m.dts      | 8 ++++++--
 arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts      | 4 +++-
 arch/arm64/boot/dts/freescale/imx8mq-tqma8mq-mba8mx.dts   | 8 ++++++--
 arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi       | 8 ++++++--
 5 files changed, 27 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
index e7d87ea81b69..3dc0047cd1de 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
@@ -374,7 +374,9 @@ &pcie0 {
 	clocks = <&clk IMX8MQ_CLK_PCIE1_ROOT>,
 		 <&pcie0_refclk>,
 		 <&clk IMX8MQ_CLK_PCIE1_PHY>,
-		 <&clk IMX8MQ_CLK_PCIE1_AUX>;
+		 <&clk IMX8MQ_CLK_PCIE1_AUX>,
+		 <&pcie0_refclk>;
+	clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux", "extref";
 	vph-supply = <&vgen5_reg>;
 	supports-clkreq;
 	status = "okay";
@@ -402,7 +404,9 @@ &pcie1 {
 	clocks = <&clk IMX8MQ_CLK_PCIE2_ROOT>,
 		 <&pcie0_refclk>,
 		 <&clk IMX8MQ_CLK_PCIE2_PHY>,
-		 <&clk IMX8MQ_CLK_PCIE2_AUX>;
+		 <&clk IMX8MQ_CLK_PCIE2_AUX>,
+		 <&pcie0_refclk>;
+	clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux", "extref";
 	vpcie-supply = <&reg_pcie1>;
 	vpcie3v3aux-supply = <&reg_pcie1>;
 	vph-supply = <&vgen5_reg>;
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-kontron-pitx-imx8m.dts b/arch/arm64/boot/dts/freescale/imx8mq-kontron-pitx-imx8m.dts
index d8cf1f27c3ec..8cf6a64db1a7 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-kontron-pitx-imx8m.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-kontron-pitx-imx8m.dts
@@ -247,7 +247,9 @@ &pcie0 {
 	clocks = <&clk IMX8MQ_CLK_PCIE1_ROOT>,
 		 <&pcie0_refclk>,
 		 <&clk IMX8MQ_CLK_PCIE1_PHY>,
-		 <&clk IMX8MQ_CLK_PCIE1_AUX>;
+		 <&clk IMX8MQ_CLK_PCIE1_AUX>,
+		 <&pcie0_refclk>;
+	clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux", "extref";
 	status = "okay";
 };
 
@@ -256,7 +258,9 @@ &pcie1 {
 	clocks = <&clk IMX8MQ_CLK_PCIE2_ROOT>,
 		 <&pcie1_refclk>,
 		 <&clk IMX8MQ_CLK_PCIE2_PHY>,
-		 <&clk IMX8MQ_CLK_PCIE2_AUX>;
+		 <&clk IMX8MQ_CLK_PCIE2_AUX>,
+		 <&pcie1_refclk>;
+	clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux", "extref";
 	fsl,max-link-speed = <1>;
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts b/arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts
index 3ae3824be027..bf931d2f3a87 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-mnt-reform2.dts
@@ -199,7 +199,9 @@ &pcie1 {
 	clocks = <&clk IMX8MQ_CLK_PCIE2_ROOT>,
 		 <&pcie1_refclk>,
 		 <&clk IMX8MQ_CLK_PCIE2_PHY>,
-		 <&clk IMX8MQ_CLK_PCIE2_AUX>;
+		 <&clk IMX8MQ_CLK_PCIE2_AUX>,
+		 <&pcie1_refclk>;
+	clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux", "extref";
 	status = "okay";
 };
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-tqma8mq-mba8mx.dts b/arch/arm64/boot/dts/freescale/imx8mq-tqma8mq-mba8mx.dts
index 0165f3a25985..761c43db3026 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-tqma8mq-mba8mx.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-tqma8mq-mba8mx.dts
@@ -97,7 +97,9 @@ &pcie0 {
 	clocks = <&clk IMX8MQ_CLK_PCIE1_ROOT>,
 		 <&pcieclk 3>,
 		 <&pcieclk 2>,
-		 <&clk IMX8MQ_CLK_PCIE1_AUX>;
+		 <&clk IMX8MQ_CLK_PCIE1_AUX>,
+		 <&pcieclk 3>;
+	clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux", "extref";
 	status = "okay";
 };
 
@@ -109,7 +111,9 @@ &pcie1 {
 	clocks = <&clk IMX8MQ_CLK_PCIE2_ROOT>,
 		 <&pcieclk 1>,
 		 <&pcieclk 0>,
-		 <&clk IMX8MQ_CLK_PCIE2_AUX>;
+		 <&clk IMX8MQ_CLK_PCIE2_AUX>,
+		 <&pcieclk 1>;
+	clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux", "extref";
 	status = "okay";
 };
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
index c7bbba45f368..31db96adb237 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
@@ -551,7 +551,9 @@ &pcie0 {
 	clocks = <&clk IMX8MQ_CLK_PCIE1_ROOT>,
 	         <&pcie0_refclk>,
 	         <&clk IMX8MQ_CLK_PCIE1_PHY>,
-	         <&clk IMX8MQ_CLK_PCIE1_AUX>;
+	         <&clk IMX8MQ_CLK_PCIE1_AUX>,
+	         <&pcie0_refclk>;
+	clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux", "extref";
 	vph-supply = <&vgen5_reg>;
 	status = "okay";
 };
@@ -563,7 +565,9 @@ &pcie1 {
 	clocks = <&clk IMX8MQ_CLK_PCIE2_ROOT>,
 	         <&pcie1_refclk>,
 	         <&clk IMX8MQ_CLK_PCIE2_PHY>,
-	         <&clk IMX8MQ_CLK_PCIE2_AUX>;
+	         <&clk IMX8MQ_CLK_PCIE2_AUX>,
+	         <&pcie1_refclk>;
+	clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux", "extref";
 	vph-supply = <&vgen5_reg>;
 	status = "okay";
 };
-- 
2.53.0