[RFC PATCH v9 0/7] PCI: rockchip: Move PCIe WAKE# handling into pci core

[RFC PATCH v9 0/7] PCI: rockchip: Move PCIe WAKE# handling into pci core

[Jeffy Chen]

Currently we are handling wake irq in mrvl wifi driver. Move it into
pci core.

Tested on my chromebook bob(with cros 4.4 kernel and mrvl wifi).


Changes in v9:
Add section for PCI devices and rewrite the commit message.
Rewrite the commit message.
Fix check error in .cleanup().
Move dedicated wakeirq setup to setup() callback and use
device_set_wakeup_enable() to enable/disable.

Changes in v8:
Add optional "pci", and rewrite commit message.
Rewrite the commit message.
Add pci-of.c and use platform_pm_ops to handle the PCIe WAKE# signal.

Changes in v7:
Move PCIE_WAKE handling into pci core.

Changes in v6:
Fix device_init_wake error handling, and add some comments.

Changes in v5:
Move to pci.txt
Use "wakeup" instead of "wake"
Rebase.

Changes in v3:
Fix error handling.

Changes in v2:
Use dev_pm_set_dedicated_wake_irq.

Jeffy Chen (7):
  dt-bindings: PCI: Add definition of PCIe WAKE# irq and PCI irq
  of/irq: Adjust of_pci_irq parsing for multiple interrupts
  mwifiex: Disable wakeup irq handling for pcie
  arm64: dts: rockchip: Move PCIe WAKE# irq to pcie driver for Gru
  PCI: Make pci_platform_pm_ops's callbacks optional
  PCI / PM: Move acpi wakeup code to pci core
  PCI / PM: Add support for the PCIe WAKE# signal for OF

 Documentation/devicetree/bindings/pci/pci.txt |   8 ++
 arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi  |  15 +--
 drivers/net/wireless/marvell/mwifiex/main.c   |   4 +
 drivers/of/of_pci_irq.c                       |  13 ++-
 drivers/pci/Makefile                          |   2 +-
 drivers/pci/pci-acpi.c                        | 121 ++++++++++++-------------
 drivers/pci/pci-driver.c                      |   9 ++
 drivers/pci/pci-of.c                          | 126 ++++++++++++++++++++++++++
 drivers/pci/pci.c                             | 112 +++++++++++++++++++----
 drivers/pci/pci.h                             |  31 +++++--
 drivers/pci/probe.c                           |  12 ++-
 drivers/pci/remove.c                          |   2 +
 include/linux/pci.h                           |   2 +
 13 files changed, 360 insertions(+), 97 deletions(-)
 create mode 100644 drivers/pci/pci-of.c

-- 
2.11.0

[RFC PATCH v9 4/7] arm64: dts: rockchip: Move PCIe WAKE# irq to pcie driver for Gru

[Jeffy Chen]

Currently we are handling PCIe WAKE# irq in mrvl wifi driver.

Move it to rockchip pcie driver since we are going to handle it in the
pci core.

Also avoid this irq been considered as the PCI interrupt pin in the
of_irq_parse_pci().

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
---

Changes in v9:
Rewrite the commit message.

Changes in v8:
Rewrite the commit message.

Changes in v7: None
Changes in v6: None
Changes in v5:
Use "wakeup" instead of "wake"

Changes in v3: None
Changes in v2: None

 arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
index 5772c52fbfd3..8e37da69f693 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
@@ -708,7 +708,15 @@ ap_i2c_audio: &i2c8 {
 
 	ep-gpios = <&gpio2 27 GPIO_ACTIVE_HIGH>;
 	pinctrl-names = "default";
-	pinctrl-0 = <&pcie_clkreqn_cpm>, <&wifi_perst_l>;
+	pinctrl-0 = <&pcie_clkreqn_cpm>, <&wlan_host_wake_l>, <&wifi_perst_l>;
+
+	interrupts-extended = <&gic GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH 0>,
+			      <&gic GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH 0>,
+			      <&gic GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH 0>,
+			      <&gpio0 8 IRQ_TYPE_LEVEL_LOW>;
+	interrupt-names = "sys", "legacy", "client", "wakeup";
+	/delete-property/ interrupts;
+
 	vpcie3v3-supply = <&pp3300_wifi_bt>;
 	vpcie1v8-supply = <&wlan_pd_n>; /* HACK: see &wlan_pd_n */
 	vpcie0v9-supply = <&pp900_pcie>;
@@ -723,11 +731,6 @@ ap_i2c_audio: &i2c8 {
 			compatible = "pci1b4b,2b42";
 			reg = <0x83010000 0x0 0x00000000 0x0 0x00100000
 			       0x83010000 0x0 0x00100000 0x0 0x00100000>;
-			interrupt-parent = <&gpio0>;
-			interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
-			pinctrl-names = "default";
-			pinctrl-0 = <&wlan_host_wake_l>;
-			wakeup-source;
 		};
 	};
 };
-- 
2.11.0