Some devices can wake the system from sleep, e.g opening the lid on a clamshell or moving a USB mouse.
Add a wake to specify this for USB devices and add the settings for Apollo Lake.
Signed-off-by: Simon Glass sjg@chromium.org ---
arch/x86/include/asm/arch-apollolake/gpe.h | 134 ++++++++++++++++++++ arch/x86/include/asm/arch-apollolake/gpio.h | 3 + doc/device-tree-bindings/device.txt | 4 + 3 files changed, 141 insertions(+) create mode 100644 arch/x86/include/asm/arch-apollolake/gpe.h
diff --git a/arch/x86/include/asm/arch-apollolake/gpe.h b/arch/x86/include/asm/arch-apollolake/gpe.h new file mode 100644 index 0000000000..c0b86085b5 --- /dev/null +++ b/arch/x86/include/asm/arch-apollolake/gpe.h @@ -0,0 +1,134 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2016 Intel Corporation. + * + * Taken from coreboot apl gpe.h + */ + +#ifndef _SOC_GPE_H_ +#define _SOC_GPE_H_ + +/* bit position in GPE0a_STS register */ +#define GPE0A_PCIE_SCI_STS 0 +#define GPE0A_SWGPE_STS 2 +#define GPE0A_PCIE_WAKE0_STS 3 +#define GPE0A_PUNIT_SCI_STS 4 +#define GPE0A_PCIE_WAKE1_STS 6 +#define GPE0A_PCIE_WAKE2_STS 7 +#define GPE0A_PCIE_WAKE3_STS 8 +#define GPE0A_PCIE_GPE_STS 9 +#define GPE0A_BATLOW_STS 10 +#define GPE0A_CSE_PME_STS 11 +#define GPE0A_XDCI_PME_STS 12 +#define GPE0A_XHCI_PME_STS 13 +#define GPE0A_AVS_PME_STS 14 +#define GPE0A_GPIO_TIER1_SCI_STS 15 +#define GPE0A_SMB_WAK_STS 16 +#define GPE0A_SATA_PME_STS 17 +#define GPE0A_CNVI_PME_STS 18 +#define GPE0A_ESPI_SCI_STS 20 /* Present in GLK */ + +/* Group DW0 is reserved in Apollolake */ + +/* GPE_63_32 */ +#define GPE0_DW1_00 32 +#define GPE0_DW1_01 33 +#define GPE0_DW1_02 34 +#define GPE0_DW1_03 36 +#define GPE0_DW1_04 36 +#define GPE0_DW1_05 37 +#define GPE0_DW1_06 38 +#define GPE0_DW1_07 39 +#define GPE0_DW1_08 40 +#define GPE0_DW1_09 41 +#define GPE0_DW1_10 42 +#define GPE0_DW1_11 43 +#define GPE0_DW1_12 44 +#define GPE0_DW1_13 45 +#define GPE0_DW1_14 46 +#define GPE0_DW1_15 47 +#define GPE0_DW1_16 48 +#define GPE0_DW1_17 49 +#define GPE0_DW1_18 50 +#define GPE0_DW1_19 51 +#define GPE0_DW1_20 52 +#define GPE0_DW1_21 53 +#define GPE0_DW1_22 54 +#define GPE0_DW1_23 55 +#define GPE0_DW1_24 56 +#define GPE0_DW1_25 57 +#define GPE0_DW1_26 58 +#define GPE0_DW1_27 59 +#define GPE0_DW1_28 60 +#define GPE0_DW1_29 61 +#define GPE0_DW1_30 62 +#define GPE0_DW1_31 63 +/* GPE_95_64 */ +#define GPE0_DW2_00 64 +#define GPE0_DW2_01 65 +#define GPE0_DW2_02 66 +#define GPE0_DW2_03 67 +#define GPE0_DW2_04 68 +#define GPE0_DW2_05 69 +#define GPE0_DW2_06 70 +#define GPE0_DW2_07 71 +#define GPE0_DW2_08 72 +#define GPE0_DW2_09 73 +#define GPE0_DW2_10 74 +#define GPE0_DW2_11 75 +#define GPE0_DW2_12 76 +#define GPE0_DW2_13 77 +#define GPE0_DW2_14 78 +#define GPE0_DW2_15 79 +#define GPE0_DW2_16 80 +#define GPE0_DW2_17 81 +#define GPE0_DW2_18 82 +#define GPE0_DW2_19 83 +#define GPE0_DW2_20 84 +#define GPE0_DW2_21 85 +#define GPE0_DW2_22 86 +#define GPE0_DW2_23 87 +#define GPE0_DW2_24 88 +#define GPE0_DW2_25 89 +#define GPE0_DW2_26 90 +#define GPE0_DW2_27 91 +#define GPE0_DW2_28 92 +#define GPE0_DW2_29 93 +#define GPE0_DW2_30 94 +#define GPE0_DW2_31 95 +/* GPE_127_96 */ +#define GPE0_DW3_00 96 +#define GPE0_DW3_01 97 +#define GPE0_DW3_02 98 +#define GPE0_DW3_03 99 +#define GPE0_DW3_04 100 +#define GPE0_DW3_05 101 +#define GPE0_DW3_06 102 +#define GPE0_DW3_07 103 +#define GPE0_DW3_08 104 +#define GPE0_DW3_09 105 +#define GPE0_DW3_10 106 +#define GPE0_DW3_11 107 +#define GPE0_DW3_12 108 +#define GPE0_DW3_13 109 +#define GPE0_DW3_14 110 +#define GPE0_DW3_15 111 +#define GPE0_DW3_16 112 +#define GPE0_DW3_17 113 +#define GPE0_DW3_18 114 +#define GPE0_DW3_19 115 +#define GPE0_DW3_20 116 +#define GPE0_DW3_21 117 +#define GPE0_DW3_22 118 +#define GPE0_DW3_23 119 +#define GPE0_DW3_24 120 +#define GPE0_DW3_25 121 +#define GPE0_DW3_26 122 +#define GPE0_DW3_27 123 +#define GPE0_DW3_28 124 +#define GPE0_DW3_29 125 +#define GPE0_DW3_30 126 +#define GPE0_DW3_31 127 + +#define GPE_MAX GPE0_DW3_31 +#endif diff --git a/arch/x86/include/asm/arch-apollolake/gpio.h b/arch/x86/include/asm/arch-apollolake/gpio.h index 10879c168e..ab5860c0fd 100644 --- a/arch/x86/include/asm/arch-apollolake/gpio.h +++ b/arch/x86/include/asm/arch-apollolake/gpio.h @@ -482,4 +482,7 @@ #define GPIO_72_IRQ 0x65 #define GPIO_73_IRQ 0x66
+/* This is needed by ACPI */ +#define GPIO_NUM_PAD_CFG_REGS 2 /* DW0, DW1 */ + #endif /* _ASM_ARCH_GPIO_H_ */ diff --git a/doc/device-tree-bindings/device.txt b/doc/device-tree-bindings/device.txt index 107b17589c..77aee20031 100644 --- a/doc/device-tree-bindings/device.txt +++ b/doc/device-tree-bindings/device.txt @@ -23,6 +23,8 @@ U-Boot provides for some optional properties which are documented here. - acpi,name : Provides the ACPI name for a device, which is a string consisting of four alphanumeric character (upper case) - acpi,uid : _UID value for device + - acpi,wake : Provides the GPE used to detect a request from a device to wake + from sleep
Example @@ -36,6 +38,7 @@ synaptics_touchpad: synaptics-touchpad@2c { acpi,desc = "Synaptics Touchpad"; interrupts-extended = <&acpi_gpe GPIO_18_IRQ IRQ_TYPE_EDGE_FALLING>; + acpi,wake = <GPE0_DW1_15>; acpi,probed; acpi,hid-desc-reg-offset = <0x20>; }; @@ -47,6 +50,7 @@ pcie-a0@14,0 { compatible = "intel,generic-wifi"; acpi,desc = "Intel WiFi"; acpi,name = "WF00"; + acpi,wake = <GPE0_DW3_00>; interrupts-extended = <&acpi_gpe 0x3c 0>; }; };