[PATCH v9 0/4] PCI: mediatek: Spilt PCIe node to comply with hardware design

[PATCH v9 0/4] PCI: mediatek: Spilt PCIe node to comply with hardware design

[Chuanjia Liu]

There are two independent PCIe controllers in MT2712 and MT7622 platform. Each of them should contain an independent MSI domain.

In old dts architecture, MSI domain will be inherited from the root bridge, and all of the devices will share the same MSI domain.
Hence that, the PCIe devices will not work properly if the irq number which required is more than 32.

Split the PCIe node for MT2712 and MT7622 platform to comply with the hardware design and fix MSI issue.

change note:
  v9:fix kernel-ci bot warning. In the scene of using new dts format,
     when mtk_pcie_parse_port fails, of_node_put don't need to be called.
  v8:remove slot node and fix yaml warning.
  v7:dt-bindings file was modified as suggested by Rob, other file no
     change.
  v6:Fix yaml error. make sure driver compatible with old and 
     new DTS format.
  v5:rebase for 5.9-rc1, no code change. 
  v4:change commit message due to bayes statistical bogofilter
     considers this series patch SPAM.
  v3:rebase for 5.8-rc1. Only collect ack of Ryder, No code change.
  v2:change the allocation of MT2712 PCIe MMIO space due to the
     allocation size is not right in v1.

Chuanjia Liu (4):
 dt-bindings: PCI: mediatek: Update the Device tree bindings
 PCI: mediatek: Add new method to get shared pcie-cfg base address and
	parse node
 arm64: dts: mediatek: Split PCIe node for MT2712 and MT7622
 ARM: dts: mediatek: Update MT7629 PCIe node for new format

 .../bindings/pci/mediatek-pcie-cfg.yaml       |  39 ++++
 .../devicetree/bindings/pci/mediatek-pcie.txt | 201 ++++++++++--------
 arch/arm/boot/dts/mt7629-rfb.dts              |   3 +-
 arch/arm/boot/dts/mt7629.dtsi                 |  45 ++--
 arch/arm64/boot/dts/mediatek/mt2712e.dtsi     |  97 +++++----
 .../dts/mediatek/mt7622-bananapi-bpi-r64.dts  |  16 +-
 arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts  |   6 +-
 arch/arm64/boot/dts/mediatek/mt7622.dtsi      | 112 +++++-----
 drivers/pci/controller/pcie-mediatek.c        |  52 +++--
 9 files changed, 326 insertions(+), 245 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml

--
2.18.0

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[PATCH v9 1/4] dt-bindings: PCI: mediatek: Update the Device tree bindings

[Chuanjia Liu]

There are two independent PCIe controllers in MT2712 and MT7622
platform. Each of them should contain an independent MSI domain.

In old dts architecture, MSI domain will be inherited from the root
bridge, and all of the devices will share the same MSI domain.
Hence that, the PCIe devices will not work properly if the irq number
which required is more than 32.

Split the PCIe node for MT2712 and MT7622 platform to comply with
the hardware design and fix MSI issue.

Signed-off-by: Chuanjia Liu <chuanjia.liu@mediatek.com>
Acked-by: Ryder Lee <ryder.lee@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>

---
 .../bindings/pci/mediatek-pcie-cfg.yaml       |  39 ++++
 .../devicetree/bindings/pci/mediatek-pcie.txt | 201 ++++++++++--------
 2 files changed, 146 insertions(+), 94 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml

diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml
new file mode 100644
index 000000000000..841a3d284bbf
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-cfg.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/mediatek-pcie-cfg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek PCIECFG controller
+
+maintainers:
+  - Chuanjia Liu <chuanjia.liu@mediatek.com>
+  - Jianjun Wang <jianjun.wang@mediatek.com>
+
+description: |
+  The MediaTek PCIECFG controller controls some feature about
+  LTSSM, ASPM and so on.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - mediatek,generic-pciecfg
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    pciecfg: pciecfg@1a140000 {
+        compatible = "mediatek,generic-pciecfg", "syscon";
+        reg = <0x1a140000 0x1000>;
+    };
+...
diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
index 7468d666763a..604792c9b1dc 100644
--- a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
@@ -8,7 +8,7 @@ Required properties:
 	"mediatek,mt7623-pcie"
 	"mediatek,mt7629-pcie"
 - device_type: Must be "pci"
-- reg: Base addresses and lengths of the PCIe subsys and root ports.
+- reg: Base addresses and lengths of the root ports.
 - reg-names: Names of the above areas to use during resource lookup.
 - #address-cells: Address representation for root ports (must be 3)
 - #size-cells: Size representation for root ports (must be 2)
@@ -143,130 +143,143 @@ Examples for MT7623:
 
 Examples for MT2712:
 
-	pcie: pcie@11700000 {
+	pcie1: pcie@112ff000 {
 		compatible = "mediatek,mt2712-pcie";
 		device_type = "pci";
-		reg = <0 0x11700000 0 0x1000>,
-		      <0 0x112ff000 0 0x1000>;
-		reg-names = "port0", "port1";
+		reg = <0 0x112ff000 0 0x1000>;
+		reg-names = "port1";
+		linux,pci-domain = <1>;
 		#address-cells = <3>;
 		#size-cells = <2>;
-		interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,
-			     <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
-		clocks = <&topckgen CLK_TOP_PE2_MAC_P0_SEL>,
-			 <&topckgen CLK_TOP_PE2_MAC_P1_SEL>,
-			 <&pericfg CLK_PERI_PCIE0>,
+		interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "pcie_irq";
+		clocks = <&topckgen CLK_TOP_PE2_MAC_P1_SEL>,
 			 <&pericfg CLK_PERI_PCIE1>;
-		clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1";
-		phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>;
-		phy-names = "pcie-phy0", "pcie-phy1";
+		clock-names = "sys_ck1", "ahb_ck1";
+		phys = <&u3port1 PHY_TYPE_PCIE>;
+		phy-names = "pcie-phy1";
 		bus-range = <0x00 0xff>;
-		ranges = <0x82000000 0 0x20000000  0x0 0x20000000  0 0x10000000>;
+		ranges = <0x82000000 0 0x11400000  0x0 0x11400000  0 0x300000>;
+		status = "disabled";
 
-		pcie0: pcie@0,0 {
-			reg = <0x0000 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie_intc1 0>,
+				<0 0 0 2 &pcie_intc1 1>,
+				<0 0 0 3 &pcie_intc1 2>,
+				<0 0 0 4 &pcie_intc1 3>;
+		pcie_intc1: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
 			#interrupt-cells = <1>;
-			ranges;
-			interrupt-map-mask = <0 0 0 7>;
-			interrupt-map = <0 0 0 1 &pcie_intc0 0>,
-					<0 0 0 2 &pcie_intc0 1>,
-					<0 0 0 3 &pcie_intc0 2>,
-					<0 0 0 4 &pcie_intc0 3>;
-			pcie_intc0: interrupt-controller {
-				interrupt-controller;
-				#address-cells = <0>;
-				#interrupt-cells = <1>;
-			};
 		};
+	};
 
-		pcie1: pcie@1,0 {
-			reg = <0x0800 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
+	pcie0: pcie@11700000 {
+		compatible = "mediatek,mt2712-pcie";
+		device_type = "pci";
+		reg = <0 0x11700000 0 0x1000>;
+		reg-names = "port0";
+		linux,pci-domain = <0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "pcie_irq";
+		clocks = <&topckgen CLK_TOP_PE2_MAC_P0_SEL>,
+			 <&pericfg CLK_PERI_PCIE0>;
+		clock-names = "sys_ck0", "ahb_ck0";
+		phys = <&u3port0 PHY_TYPE_PCIE>;
+		phy-names = "pcie-phy0";
+		bus-range = <0x00 0xff>;
+		ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x10000000>;
+		status = "disabled";
+
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie_intc0 0>,
+				<0 0 0 2 &pcie_intc0 1>,
+				<0 0 0 3 &pcie_intc0 2>,
+				<0 0 0 4 &pcie_intc0 3>;
+		pcie_intc0: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
 			#interrupt-cells = <1>;
-			ranges;
-			interrupt-map-mask = <0 0 0 7>;
-			interrupt-map = <0 0 0 1 &pcie_intc1 0>,
-					<0 0 0 2 &pcie_intc1 1>,
-					<0 0 0 3 &pcie_intc1 2>,
-					<0 0 0 4 &pcie_intc1 3>;
-			pcie_intc1: interrupt-controller {
-				interrupt-controller;
-				#address-cells = <0>;
-				#interrupt-cells = <1>;
-			};
 		};
 	};
 
 Examples for MT7622:
 
-	pcie: pcie@1a140000 {
+	pcie0: pcie@1a143000 {
 		compatible = "mediatek,mt7622-pcie";
 		device_type = "pci";
-		reg = <0 0x1a140000 0 0x1000>,
-		      <0 0x1a143000 0 0x1000>,
-		      <0 0x1a145000 0 0x1000>;
-		reg-names = "subsys", "port0", "port1";
+		reg = <0 0x1a143000 0 0x1000>;
+		reg-names = "port0";
+		linux,pci-domain = <0>;
 		#address-cells = <3>;
 		#size-cells = <2>;
-		interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>,
-			     <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
+		interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-names = "pcie_irq";
 		clocks = <&pciesys CLK_PCIE_P0_MAC_EN>,
-			 <&pciesys CLK_PCIE_P1_MAC_EN>,
 			 <&pciesys CLK_PCIE_P0_AHB_EN>,
-			 <&pciesys CLK_PCIE_P1_AHB_EN>,
 			 <&pciesys CLK_PCIE_P0_AUX_EN>,
-			 <&pciesys CLK_PCIE_P1_AUX_EN>,
 			 <&pciesys CLK_PCIE_P0_AXI_EN>,
-			 <&pciesys CLK_PCIE_P1_AXI_EN>,
 			 <&pciesys CLK_PCIE_P0_OBFF_EN>,
-			 <&pciesys CLK_PCIE_P1_OBFF_EN>,
-			 <&pciesys CLK_PCIE_P0_PIPE_EN>,
-			 <&pciesys CLK_PCIE_P1_PIPE_EN>;
-		clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1",
-			      "aux_ck0", "aux_ck1", "axi_ck0", "axi_ck1",
-			      "obff_ck0", "obff_ck1", "pipe_ck0", "pipe_ck1";
-		phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>;
-		phy-names = "pcie-phy0", "pcie-phy1";
+			 <&pciesys CLK_PCIE_P0_PIPE_EN>;
+		clock-names = "sys_ck0", "ahb_ck0", "aux_ck0",
+			      "axi_ck0", "obff_ck0", "pipe_ck0";
+
 		power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
 		bus-range = <0x00 0xff>;
-		ranges = <0x82000000 0 0x20000000  0x0 0x20000000  0 0x10000000>;
+		ranges = <0x82000000 0 0x20000000  0x0 0x20000000  0 0x8000000>;
+		status = "disabled";
 
-		pcie0: pcie@0,0 {
-			reg = <0x0000 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie_intc0 0>,
+				<0 0 0 2 &pcie_intc0 1>,
+				<0 0 0 3 &pcie_intc0 2>,
+				<0 0 0 4 &pcie_intc0 3>;
+		pcie_intc0: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
 			#interrupt-cells = <1>;
-			ranges;
-			interrupt-map-mask = <0 0 0 7>;
-			interrupt-map = <0 0 0 1 &pcie_intc0 0>,
-					<0 0 0 2 &pcie_intc0 1>,
-					<0 0 0 3 &pcie_intc0 2>,
-					<0 0 0 4 &pcie_intc0 3>;
-			pcie_intc0: interrupt-controller {
-				interrupt-controller;
-				#address-cells = <0>;
-				#interrupt-cells = <1>;
-			};
 		};
+	};
 
-		pcie1: pcie@1,0 {
-			reg = <0x0800 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
+	pcie1: pcie@1a145000 {
+		compatible = "mediatek,mt7622-pcie";
+		device_type = "pci";
+		reg = <0 0x1a145000 0 0x1000>;
+		reg-names = "port1";
+		linux,pci-domain = <1>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-names = "pcie_irq";
+		clocks = <&pciesys CLK_PCIE_P1_MAC_EN>,
+			 /* designer has connect RC1 with p0_ahb clock */
+			 <&pciesys CLK_PCIE_P0_AHB_EN>,
+			 <&pciesys CLK_PCIE_P1_AUX_EN>,
+			 <&pciesys CLK_PCIE_P1_AXI_EN>,
+			 <&pciesys CLK_PCIE_P1_OBFF_EN>,
+			 <&pciesys CLK_PCIE_P1_PIPE_EN>;
+		clock-names = "sys_ck1", "ahb_ck1", "aux_ck1",
+			      "axi_ck1", "obff_ck1", "pipe_ck1";
+
+		power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
+		bus-range = <0x00 0xff>;
+		ranges = <0x82000000 0 0x28000000  0x0 0x28000000  0 0x8000000>;
+		status = "disabled";
+
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie_intc1 0>,
+				<0 0 0 2 &pcie_intc1 1>,
+				<0 0 0 3 &pcie_intc1 2>,
+				<0 0 0 4 &pcie_intc1 3>;
+		pcie_intc1: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
 			#interrupt-cells = <1>;
-			ranges;
-			interrupt-map-mask = <0 0 0 7>;
-			interrupt-map = <0 0 0 1 &pcie_intc1 0>,
-					<0 0 0 2 &pcie_intc1 1>,
-					<0 0 0 3 &pcie_intc1 2>,
-					<0 0 0 4 &pcie_intc1 3>;
-			pcie_intc1: interrupt-controller {
-				interrupt-controller;
-				#address-cells = <0>;
-				#interrupt-cells = <1>;
-			};
 		};
 	};
-- 
2.18.0
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[PATCH v9 2/4] PCI: mediatek: Add new method to get shared pcie-cfg base address and parse node

[Chuanjia Liu]

For the new dts format, add a new method to get
shared pcie-cfg base address and parse node.

Signed-off-by: Chuanjia Liu <chuanjia.liu@mediatek.com>
Acked-by: Ryder Lee <ryder.lee@mediatek.com>
---
 drivers/pci/controller/pcie-mediatek.c | 52 +++++++++++++++++++-------
 1 file changed, 39 insertions(+), 13 deletions(-)

diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index 23548b517e4b..65ebcdb8ab57 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -14,6 +14,7 @@
 #include <linux/irqchip/chained_irq.h>
 #include <linux/irqdomain.h>
 #include <linux/kernel.h>
+#include <linux/mfd/syscon.h>
 #include <linux/msi.h>
 #include <linux/module.h>
 #include <linux/of_address.h>
@@ -23,6 +24,7 @@
 #include <linux/phy/phy.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/regmap.h>
 #include <linux/reset.h>
 
 #include "../pci.h"
@@ -205,6 +207,7 @@ struct mtk_pcie_port {
  * struct mtk_pcie - PCIe host information
  * @dev: pointer to PCIe device
  * @base: IO mapped register base
+ * @cfg: IO mapped register map for PCIe config
  * @free_ck: free-run reference clock
  * @mem: non-prefetchable memory resource
  * @ports: pointer to PCIe port information
@@ -213,6 +216,7 @@ struct mtk_pcie_port {
 struct mtk_pcie {
 	struct device *dev;
 	void __iomem *base;
+	struct regmap *cfg;
 	struct clk *free_ck;
 
 	struct list_head ports;
@@ -648,7 +652,11 @@ static int mtk_pcie_setup_irq(struct mtk_pcie_port *port,
 		return err;
 	}
 
-	port->irq = platform_get_irq(pdev, port->slot);
+	if (of_find_property(dev->of_node, "interrupt-names", NULL))
+		port->irq = platform_get_irq_byname(pdev, "pcie_irq");
+	else
+		port->irq = platform_get_irq(pdev, port->slot);
+
 	if (port->irq < 0)
 		return port->irq;
 
@@ -680,6 +688,10 @@ static int mtk_pcie_startup_port_v2(struct mtk_pcie_port *port)
 		val |= PCIE_CSR_LTSSM_EN(port->slot) |
 		       PCIE_CSR_ASPM_L1_EN(port->slot);
 		writel(val, pcie->base + PCIE_SYS_CFG_V2);
+	} else if (pcie->cfg) {
+		val = PCIE_CSR_LTSSM_EN(port->slot) |
+		      PCIE_CSR_ASPM_L1_EN(port->slot);
+		regmap_update_bits(pcie->cfg, PCIE_SYS_CFG_V2, val, val);
 	}
 
 	/* Assert all reset signals */
@@ -983,6 +995,7 @@ static int mtk_pcie_subsys_powerup(struct mtk_pcie *pcie)
 	struct device *dev = pcie->dev;
 	struct platform_device *pdev = to_platform_device(dev);
 	struct resource *regs;
+	struct device_node *cfg_node;
 	int err;
 
 	/* get shared registers, which are optional */
@@ -995,6 +1008,14 @@ static int mtk_pcie_subsys_powerup(struct mtk_pcie *pcie)
 		}
 	}
 
+	cfg_node = of_find_compatible_node(NULL, NULL,
+					   "mediatek,generic-pciecfg");
+	if (cfg_node) {
+		pcie->cfg = syscon_node_to_regmap(cfg_node);
+		if (IS_ERR(pcie->cfg))
+			return PTR_ERR(pcie->cfg);
+	}
+
 	pcie->free_ck = devm_clk_get(dev, "free_ck");
 	if (IS_ERR(pcie->free_ck)) {
 		if (PTR_ERR(pcie->free_ck) == -EPROBE_DEFER)
@@ -1027,22 +1048,27 @@ static int mtk_pcie_setup(struct mtk_pcie *pcie)
 	struct device *dev = pcie->dev;
 	struct device_node *node = dev->of_node, *child;
 	struct mtk_pcie_port *port, *tmp;
-	int err;
+	int err, slot;
+
+	slot = of_get_pci_domain_nr(dev->of_node);
+	if (slot < 0) {
+		for_each_available_child_of_node(node, child) {
+			err = of_pci_get_devfn(child);
+			if (err < 0) {
+				dev_err(dev, "failed to get devfn: %d\n", err);
+				goto error_put_node;
+			}
 
-	for_each_available_child_of_node(node, child) {
-		int slot;
+			slot = PCI_SLOT(err);
 
-		err = of_pci_get_devfn(child);
-		if (err < 0) {
-			dev_err(dev, "failed to parse devfn: %d\n", err);
-			goto error_put_node;
+			err = mtk_pcie_parse_port(pcie, child, slot);
+			if (err)
+				goto error_put_node;
 		}
-
-		slot = PCI_SLOT(err);
-
-		err = mtk_pcie_parse_port(pcie, child, slot);
+	} else {
+		err = mtk_pcie_parse_port(pcie, node, slot);
 		if (err)
-			goto error_put_node;
+			return err;
 	}
 
 	err = mtk_pcie_subsys_powerup(pcie);
-- 
2.18.0
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[PATCH v9 3/4] arm64: dts: mediatek: Split PCIe node for MT2712 and MT7622

[Chuanjia Liu]

There are two independent PCIe controllers in MT2712 and MT7622
platform. Each of them should contain an independent MSI domain.

In old dts architecture, MSI domain will be inherited from the root
bridge, and all of the devices will share the same MSI domain.
Hence that, the PCIe devices will not work properly if the irq number
which required is more than 32.

Split the PCIe node for MT2712 and MT7622 platform to comply with
the hardware design and fix MSI issue.

Signed-off-by: Chuanjia Liu <chuanjia.liu@mediatek.com>
Acked-by: Ryder Lee <ryder.lee@mediatek.com>

---
 arch/arm64/boot/dts/mediatek/mt2712e.dtsi     |  97 +++++++--------
 .../dts/mediatek/mt7622-bananapi-bpi-r64.dts  |  16 ++-
 arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts  |   6 +-
 arch/arm64/boot/dts/mediatek/mt7622.dtsi      | 112 ++++++++++--------
 4 files changed, 118 insertions(+), 113 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
index db17d0a4ed57..0e20e13b0942 100644
--- a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
@@ -915,64 +915,67 @@
 		};
 	};
 
-	pcie: pcie@11700000 {
+	pcie1: pcie@112ff000 {
 		compatible = "mediatek,mt2712-pcie";
 		device_type = "pci";
-		reg = <0 0x11700000 0 0x1000>,
-		      <0 0x112ff000 0 0x1000>;
-		reg-names = "port0", "port1";
+		reg = <0 0x112ff000 0 0x1000>;
+		reg-names = "port1";
+		linux,pci-domain = <1>;
 		#address-cells = <3>;
 		#size-cells = <2>;
-		interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,
-			     <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
-		clocks = <&topckgen CLK_TOP_PE2_MAC_P0_SEL>,
-			 <&topckgen CLK_TOP_PE2_MAC_P1_SEL>,
-			 <&pericfg CLK_PERI_PCIE0>,
+		interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "pcie_irq";
+		clocks = <&topckgen CLK_TOP_PE2_MAC_P1_SEL>,
 			 <&pericfg CLK_PERI_PCIE1>;
-		clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1";
-		phys = <&u3port0 PHY_TYPE_PCIE>, <&u3port1 PHY_TYPE_PCIE>;
-		phy-names = "pcie-phy0", "pcie-phy1";
+		clock-names = "sys_ck1", "ahb_ck1";
+		phys = <&u3port1 PHY_TYPE_PCIE>;
+		phy-names = "pcie-phy1";
 		bus-range = <0x00 0xff>;
-		ranges = <0x82000000 0 0x20000000  0x0 0x20000000  0 0x10000000>;
+		ranges = <0x82000000 0 0x11400000  0x0 0x11400000  0 0x300000>;
+		status = "disabled";
 
-		pcie0: pcie@0,0 {
-			device_type = "pci";
-			status = "disabled";
-			reg = <0x0000 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie_intc1 0>,
+				<0 0 0 2 &pcie_intc1 1>,
+				<0 0 0 3 &pcie_intc1 2>,
+				<0 0 0 4 &pcie_intc1 3>;
+		pcie_intc1: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
 			#interrupt-cells = <1>;
-			ranges;
-			interrupt-map-mask = <0 0 0 7>;
-			interrupt-map = <0 0 0 1 &pcie_intc0 0>,
-					<0 0 0 2 &pcie_intc0 1>,
-					<0 0 0 3 &pcie_intc0 2>,
-					<0 0 0 4 &pcie_intc0 3>;
-			pcie_intc0: interrupt-controller {
-				interrupt-controller;
-				#address-cells = <0>;
-				#interrupt-cells = <1>;
-			};
 		};
+	};
 
-		pcie1: pcie@1,0 {
-			device_type = "pci";
-			status = "disabled";
-			reg = <0x0800 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
+	pcie0: pcie@11700000 {
+		compatible = "mediatek,mt2712-pcie";
+		device_type = "pci";
+		reg = <0 0x11700000 0 0x1000>;
+		reg-names = "port0";
+		linux,pci-domain = <0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "pcie_irq";
+		clocks = <&topckgen CLK_TOP_PE2_MAC_P0_SEL>,
+			 <&pericfg CLK_PERI_PCIE0>;
+		clock-names = "sys_ck0", "ahb_ck0";
+		phys = <&u3port0 PHY_TYPE_PCIE>;
+		phy-names = "pcie-phy0";
+		bus-range = <0x00 0xff>;
+		ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x10000000>;
+		status = "disabled";
+
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie_intc0 0>,
+				<0 0 0 2 &pcie_intc0 1>,
+				<0 0 0 3 &pcie_intc0 2>,
+				<0 0 0 4 &pcie_intc0 3>;
+		pcie_intc0: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
 			#interrupt-cells = <1>;
-			ranges;
-			interrupt-map-mask = <0 0 0 7>;
-			interrupt-map = <0 0 0 1 &pcie_intc1 0>,
-					<0 0 0 2 &pcie_intc1 1>,
-					<0 0 0 3 &pcie_intc1 2>,
-					<0 0 0 4 &pcie_intc1 3>;
-			pcie_intc1: interrupt-controller {
-				interrupt-controller;
-				#address-cells = <0>;
-				#interrupt-cells = <1>;
-			};
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
index 2f77dc40b9b8..2b9bf8dd14ec 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
@@ -257,18 +257,16 @@
 	};
 };
 
-&pcie {
+&pcie0 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&pcie0_pins>, <&pcie1_pins>;
+	pinctrl-0 = <&pcie0_pins>;
 	status = "okay";
+};
 
-	pcie@0,0 {
-		status = "okay";
-	};
-
-	pcie@1,0 {
-		status = "okay";
-	};
+&pcie1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie1_pins>;
+	status = "okay";
 };
 
 &pio {
diff --git a/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts b/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
index 08ad0ffb24df..182eba502522 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
@@ -234,14 +234,10 @@
 	};
 };
 
-&pcie {
+&pcie0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pcie0_pins>;
 	status = "okay";
-
-	pcie@0,0 {
-		status = "okay";
-	};
 };
 
 &pio {
diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
index 7c6d871538a6..df83d531a0f4 100644
--- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi
@@ -781,75 +781,83 @@
 		#reset-cells = <1>;
 	};
 
-	pcie: pcie@1a140000 {
+	pciecfg: pciecfg@1a140000 {
+		compatible = "mediatek,generic-pciecfg", "syscon";
+		reg = <0 0x1a140000 0 0x1000>;
+	};
+
+	pcie0: pcie@1a143000 {
 		compatible = "mediatek,mt7622-pcie";
 		device_type = "pci";
-		reg = <0 0x1a140000 0 0x1000>,
-		      <0 0x1a143000 0 0x1000>,
-		      <0 0x1a145000 0 0x1000>;
-		reg-names = "subsys", "port0", "port1";
+		reg = <0 0x1a143000 0 0x1000>;
+		reg-names = "port0";
+		linux,pci-domain = <0>;
 		#address-cells = <3>;
 		#size-cells = <2>;
-		interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>,
-			     <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
+		interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-names = "pcie_irq";
 		clocks = <&pciesys CLK_PCIE_P0_MAC_EN>,
-			 <&pciesys CLK_PCIE_P1_MAC_EN>,
-			 <&pciesys CLK_PCIE_P0_AHB_EN>,
 			 <&pciesys CLK_PCIE_P0_AHB_EN>,
 			 <&pciesys CLK_PCIE_P0_AUX_EN>,
-			 <&pciesys CLK_PCIE_P1_AUX_EN>,
 			 <&pciesys CLK_PCIE_P0_AXI_EN>,
-			 <&pciesys CLK_PCIE_P1_AXI_EN>,
 			 <&pciesys CLK_PCIE_P0_OBFF_EN>,
-			 <&pciesys CLK_PCIE_P1_OBFF_EN>,
-			 <&pciesys CLK_PCIE_P0_PIPE_EN>,
-			 <&pciesys CLK_PCIE_P1_PIPE_EN>;
-		clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1",
-			      "aux_ck0", "aux_ck1", "axi_ck0", "axi_ck1",
-			      "obff_ck0", "obff_ck1", "pipe_ck0", "pipe_ck1";
+			 <&pciesys CLK_PCIE_P0_PIPE_EN>;
+		clock-names = "sys_ck0", "ahb_ck0", "aux_ck0",
+			      "axi_ck0", "obff_ck0", "pipe_ck0";
+
 		power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
 		bus-range = <0x00 0xff>;
-		ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x10000000>;
+		ranges = <0x82000000 0 0x20000000 0x0 0x20000000 0 0x8000000>;
 		status = "disabled";
 
-		pcie0: pcie@0,0 {
-			reg = <0x0000 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie_intc0 0>,
+				<0 0 0 2 &pcie_intc0 1>,
+				<0 0 0 3 &pcie_intc0 2>,
+				<0 0 0 4 &pcie_intc0 3>;
+		pcie_intc0: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
 			#interrupt-cells = <1>;
-			ranges;
-			status = "disabled";
-
-			interrupt-map-mask = <0 0 0 7>;
-			interrupt-map = <0 0 0 1 &pcie_intc0 0>,
-					<0 0 0 2 &pcie_intc0 1>,
-					<0 0 0 3 &pcie_intc0 2>,
-					<0 0 0 4 &pcie_intc0 3>;
-			pcie_intc0: interrupt-controller {
-				interrupt-controller;
-				#address-cells = <0>;
-				#interrupt-cells = <1>;
-			};
 		};
+	};
 
-		pcie1: pcie@1,0 {
-			reg = <0x0800 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
+	pcie1: pcie@1a145000 {
+		compatible = "mediatek,mt7622-pcie";
+		device_type = "pci";
+		reg = <0 0x1a145000 0 0x1000>;
+		reg-names = "port1";
+		linux,pci-domain = <1>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+		interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-names = "pcie_irq";
+		clocks = <&pciesys CLK_PCIE_P1_MAC_EN>,
+			 /* designer has connect RC1 with p0_ahb clock */
+			 <&pciesys CLK_PCIE_P0_AHB_EN>,
+			 <&pciesys CLK_PCIE_P1_AUX_EN>,
+			 <&pciesys CLK_PCIE_P1_AXI_EN>,
+			 <&pciesys CLK_PCIE_P1_OBFF_EN>,
+			 <&pciesys CLK_PCIE_P1_PIPE_EN>;
+		clock-names = "sys_ck1", "ahb_ck1", "aux_ck1",
+			      "axi_ck1", "obff_ck1", "pipe_ck1";
+
+		power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
+		bus-range = <0x00 0xff>;
+		ranges = <0x82000000 0 0x28000000 0x0 0x28000000 0 0x8000000>;
+		status = "disabled";
+
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie_intc1 0>,
+				<0 0 0 2 &pcie_intc1 1>,
+				<0 0 0 3 &pcie_intc1 2>,
+				<0 0 0 4 &pcie_intc1 3>;
+		pcie_intc1: interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
 			#interrupt-cells = <1>;
-			ranges;
-			status = "disabled";
-
-			interrupt-map-mask = <0 0 0 7>;
-			interrupt-map = <0 0 0 1 &pcie_intc1 0>,
-					<0 0 0 2 &pcie_intc1 1>,
-					<0 0 0 3 &pcie_intc1 2>,
-					<0 0 0 4 &pcie_intc1 3>;
-			pcie_intc1: interrupt-controller {
-				interrupt-controller;
-				#address-cells = <0>;
-				#interrupt-cells = <1>;
-			};
 		};
 	};
 
-- 
2.18.0
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[PATCH v9 4/4] ARM: dts: mediatek: Update MT7629 PCIe node for new format

[Chuanjia Liu]

To match the new dts binding. Remove "subsys",unused
interrupt and slot node.Add "interrupt-names",
"linux,pci-domain" and pciecfg node.

Signed-off-by: Chuanjia Liu <chuanjia.liu@mediatek.com>
Acked-by: Ryder Lee <ryder.lee@mediatek.com>

---
 arch/arm/boot/dts/mt7629-rfb.dts |  3 ++-
 arch/arm/boot/dts/mt7629.dtsi    | 45 +++++++++++++++-----------------
 2 files changed, 23 insertions(+), 25 deletions(-)

diff --git a/arch/arm/boot/dts/mt7629-rfb.dts b/arch/arm/boot/dts/mt7629-rfb.dts
index 9980c10c6e29..eb536cbebd9b 100644
--- a/arch/arm/boot/dts/mt7629-rfb.dts
+++ b/arch/arm/boot/dts/mt7629-rfb.dts
@@ -140,9 +140,10 @@
 	};
 };
 
-&pcie {
+&pcie1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pcie_pins>;
+	status = "okay";
 };
 
 &pciephy1 {
diff --git a/arch/arm/boot/dts/mt7629.dtsi b/arch/arm/boot/dts/mt7629.dtsi
index 5cbb3d244c75..ca6789acf057 100644
--- a/arch/arm/boot/dts/mt7629.dtsi
+++ b/arch/arm/boot/dts/mt7629.dtsi
@@ -360,16 +360,21 @@
 			#reset-cells = <1>;
 		};
 
-		pcie: pcie@1a140000 {
+		pciecfg: pciecfg@1a140000 {
+			compatible = "mediatek,generic-pciecfg", "syscon";
+			reg = <0x1a140000 0x1000>;
+		};
+
+		pcie1: pcie@1a145000 {
 			compatible = "mediatek,mt7629-pcie";
 			device_type = "pci";
-			reg = <0x1a140000 0x1000>,
-			      <0x1a145000 0x1000>;
-			reg-names = "subsys","port1";
+			reg = <0x1a145000 0x1000>;
+			reg-names = "port1";
+			linux,pci-domain = <1>;
 			#address-cells = <3>;
 			#size-cells = <2>;
-			interrupts = <GIC_SPI 176 IRQ_TYPE_LEVEL_LOW>,
-				     <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
+			interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
+			interrupt-names = "pcie_irq";
 			clocks = <&pciesys CLK_PCIE_P1_MAC_EN>,
 				 <&pciesys CLK_PCIE_P0_AHB_EN>,
 				 <&pciesys CLK_PCIE_P1_AUX_EN>,
@@ -390,26 +395,18 @@
 			power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
 			bus-range = <0x00 0xff>;
 			ranges = <0x82000000 0 0x20000000 0x20000000 0 0x10000000>;
+			status = "disabled";
 
-			pcie1: pcie@1,0 {
-				device_type = "pci";
-				reg = <0x0800 0 0 0 0>;
-				#address-cells = <3>;
-				#size-cells = <2>;
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0 0 0 7>;
+			interrupt-map = <0 0 0 1 &pcie_intc1 0>,
+					<0 0 0 2 &pcie_intc1 1>,
+					<0 0 0 3 &pcie_intc1 2>,
+					<0 0 0 4 &pcie_intc1 3>;
+			pcie_intc1: interrupt-controller {
+				interrupt-controller;
+				#address-cells = <0>;
 				#interrupt-cells = <1>;
-				ranges;
-				num-lanes = <1>;
-				interrupt-map-mask = <0 0 0 7>;
-				interrupt-map = <0 0 0 1 &pcie_intc1 0>,
-						<0 0 0 2 &pcie_intc1 1>,
-						<0 0 0 3 &pcie_intc1 2>,
-						<0 0 0 4 &pcie_intc1 3>;
-
-				pcie_intc1: interrupt-controller {
-					interrupt-controller;
-					#address-cells = <0>;
-					#interrupt-cells = <1>;
-				};
 			};
 		};
 
-- 
2.18.0
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linux-arm-kernel mailing list
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Re: [PATCH v9 2/4] PCI: mediatek: Add new method to get shared pcie-cfg base address and parse node

[Chuanjia Liu]

Hi, Lorenzo, Bjorn,

Just a gentle ping. Please let me know your comments about this patch
set.

thanks

On Tue, 2021-04-06 at 11:44 +0800, Chuanjia Liu wrote:
> For the new dts format, add a new method to get
> shared pcie-cfg base address and parse node.
> 
> Signed-off-by: Chuanjia Liu <chuanjia.liu@mediatek.com>
> Acked-by: Ryder Lee <ryder.lee@mediatek.com>
> ---
>  drivers/pci/controller/pcie-mediatek.c | 52 +++++++++++++++++++-------
>  1 file changed, 39 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
> index 23548b517e4b..65ebcdb8ab57 100644
> --- a/drivers/pci/controller/pcie-mediatek.c
> +++ b/drivers/pci/controller/pcie-mediatek.c
> @@ -14,6 +14,7 @@
>  #include <linux/irqchip/chained_irq.h>
>  #include <linux/irqdomain.h>
>  #include <linux/kernel.h>
> +#include <linux/mfd/syscon.h>
>  #include <linux/msi.h>
>  #include <linux/module.h>
>  #include <linux/of_address.h>
> @@ -23,6 +24,7 @@
>  #include <linux/phy/phy.h>
>  #include <linux/platform_device.h>
>  #include <linux/pm_runtime.h>
> +#include <linux/regmap.h>
>  #include <linux/reset.h>
>  
>  #include "../pci.h"
> @@ -205,6 +207,7 @@ struct mtk_pcie_port {
>   * struct mtk_pcie - PCIe host information
>   * @dev: pointer to PCIe device
>   * @base: IO mapped register base
> + * @cfg: IO mapped register map for PCIe config
>   * @free_ck: free-run reference clock
>   * @mem: non-prefetchable memory resource
>   * @ports: pointer to PCIe port information
> @@ -213,6 +216,7 @@ struct mtk_pcie_port {
>  struct mtk_pcie {
>  	struct device *dev;
>  	void __iomem *base;
> +	struct regmap *cfg;
>  	struct clk *free_ck;
>  
>  	struct list_head ports;
> @@ -648,7 +652,11 @@ static int mtk_pcie_setup_irq(struct mtk_pcie_port *port,
>  		return err;
>  	}
>  
> -	port->irq = platform_get_irq(pdev, port->slot);
> +	if (of_find_property(dev->of_node, "interrupt-names", NULL))
> +		port->irq = platform_get_irq_byname(pdev, "pcie_irq");
> +	else
> +		port->irq = platform_get_irq(pdev, port->slot);
> +
>  	if (port->irq < 0)
>  		return port->irq;
>  
> @@ -680,6 +688,10 @@ static int mtk_pcie_startup_port_v2(struct mtk_pcie_port *port)
>  		val |= PCIE_CSR_LTSSM_EN(port->slot) |
>  		       PCIE_CSR_ASPM_L1_EN(port->slot);
>  		writel(val, pcie->base + PCIE_SYS_CFG_V2);
> +	} else if (pcie->cfg) {
> +		val = PCIE_CSR_LTSSM_EN(port->slot) |
> +		      PCIE_CSR_ASPM_L1_EN(port->slot);
> +		regmap_update_bits(pcie->cfg, PCIE_SYS_CFG_V2, val, val);
>  	}
>  
>  	/* Assert all reset signals */
> @@ -983,6 +995,7 @@ static int mtk_pcie_subsys_powerup(struct mtk_pcie *pcie)
>  	struct device *dev = pcie->dev;
>  	struct platform_device *pdev = to_platform_device(dev);
>  	struct resource *regs;
> +	struct device_node *cfg_node;
>  	int err;
>  
>  	/* get shared registers, which are optional */
> @@ -995,6 +1008,14 @@ static int mtk_pcie_subsys_powerup(struct mtk_pcie *pcie)
>  		}
>  	}
>  
> +	cfg_node = of_find_compatible_node(NULL, NULL,
> +					   "mediatek,generic-pciecfg");
> +	if (cfg_node) {
> +		pcie->cfg = syscon_node_to_regmap(cfg_node);
> +		if (IS_ERR(pcie->cfg))
> +			return PTR_ERR(pcie->cfg);
> +	}
> +
>  	pcie->free_ck = devm_clk_get(dev, "free_ck");
>  	if (IS_ERR(pcie->free_ck)) {
>  		if (PTR_ERR(pcie->free_ck) == -EPROBE_DEFER)
> @@ -1027,22 +1048,27 @@ static int mtk_pcie_setup(struct mtk_pcie *pcie)
>  	struct device *dev = pcie->dev;
>  	struct device_node *node = dev->of_node, *child;
>  	struct mtk_pcie_port *port, *tmp;
> -	int err;
> +	int err, slot;
> +
> +	slot = of_get_pci_domain_nr(dev->of_node);
> +	if (slot < 0) {
> +		for_each_available_child_of_node(node, child) {
> +			err = of_pci_get_devfn(child);
> +			if (err < 0) {
> +				dev_err(dev, "failed to get devfn: %d\n", err);
> +				goto error_put_node;
> +			}
>  
> -	for_each_available_child_of_node(node, child) {
> -		int slot;
> +			slot = PCI_SLOT(err);
>  
> -		err = of_pci_get_devfn(child);
> -		if (err < 0) {
> -			dev_err(dev, "failed to parse devfn: %d\n", err);
> -			goto error_put_node;
> +			err = mtk_pcie_parse_port(pcie, child, slot);
> +			if (err)
> +				goto error_put_node;
>  		}
> -
> -		slot = PCI_SLOT(err);
> -
> -		err = mtk_pcie_parse_port(pcie, child, slot);
> +	} else {
> +		err = mtk_pcie_parse_port(pcie, node, slot);
>  		if (err)
> -			goto error_put_node;
> +			return err;
>  	}
>  
>  	err = mtk_pcie_subsys_powerup(pcie);

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Re: [SPAM]Re: [PATCH v9 2/4] PCI: mediatek: Add new method to get shared pcie-cfg base address and parse node

[Chuanjia Liu]

On Tue, 2021-04-20 at 11:42 +0800, Chuanjia Liu wrote:

Hi, Lorenzo, Bjorn

  just a gentle ping...

thanks.
> Hi, Lorenzo, Bjorn,
> 
> Just a gentle ping. Please let me know your comments about this patch
> set.
> 
> thanks
> 
> On Tue, 2021-04-06 at 11:44 +0800, Chuanjia Liu wrote:
> > For the new dts format, add a new method to get
> > shared pcie-cfg base address and parse node.
> > 
> > Signed-off-by: Chuanjia Liu <chuanjia.liu@mediatek.com>
> > Acked-by: Ryder Lee <ryder.lee@mediatek.com>
> > ---
> >  drivers/pci/controller/pcie-mediatek.c | 52 +++++++++++++++++++-------
> >  1 file changed, 39 insertions(+), 13 deletions(-)
> > 

> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek

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