tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0-only
2#
3# Broadcom pinctrl drivers
4#
5
6config PINCTRL_BCM281XX
7 bool "Broadcom BCM281xx pinctrl driver"
8 depends on OF && (ARCH_BCM_MOBILE || COMPILE_TEST)
9 select PINMUX
10 select PINCONF
11 select GENERIC_PINCONF
12 select REGMAP_MMIO
13 default ARCH_BCM_MOBILE
14 help
15 Say Y here to support Broadcom BCM281xx pinctrl driver, which is used
16 for the BCM281xx SoC family, including BCM11130, BCM11140, BCM11351,
17 BCM28145, and BCM28155 SoCs. This driver requires the pinctrl
18 framework. GPIO is provided by a separate GPIO driver.
19
20config PINCTRL_BCM2835
21 bool "Broadcom BCM2835 GPIO (with PINCONF) driver"
22 depends on OF && (ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST)
23 select PINMUX
24 select PINCONF
25 select GENERIC_PINCONF
26 select GPIOLIB_IRQCHIP
27 default ARCH_BCM2835 || ARCH_BRCMSTB
28 help
29 Say Y here to enable the Broadcom BCM2835 GPIO driver.
30
31config PINCTRL_IPROC_GPIO
32 bool "Broadcom iProc GPIO (with PINCONF) driver"
33 depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST)
34 select GPIOLIB_IRQCHIP
35 select PINCONF
36 select GENERIC_PINCONF
37 default ARCH_BCM_IPROC
38 help
39 Say yes here to enable the Broadcom iProc GPIO driver.
40
41 The Broadcom iProc based SoCs- Cygnus, NS2, NSP and Stingray, use
42 same GPIO Controller IP hence this driver could be used for all.
43
44 The Broadcom Cygnus SoC has 3 GPIO controllers including the ASIU
45 GPIO controller (ASIU), the chipCommonG GPIO controller (CCM), and
46 the always-ON GPIO controller (CRMU/AON). All 3 GPIO controllers are
47 supported by this driver.
48
49 The Broadcom NSP has two GPIO controllers including the ChipcommonA
50 GPIO, the ChipcommonB GPIO. Later controller is supported by this
51 driver.
52
53 The Broadcom NS2 has two GPIO controller including the CRMU GPIO,
54 the ChipcommonG GPIO. Both controllers are supported by this driver.
55
56 The Broadcom Stingray GPIO controllers are supported by this driver.
57
58 All above SoCs GPIO controllers support basic PINCONF functions such
59 as bias pull up, pull down, and drive strength configurations, when
60 these pins are muxed to GPIO.
61
62 It provides the framework where pins from the individual GPIO can be
63 individually muxed to GPIO function, through interaction with the
64 SoCs IOMUX controller. This features could be used only on SoCs which
65 support individual pin muxing.
66
67config PINCTRL_CYGNUS_MUX
68 bool "Broadcom Cygnus IOMUX driver"
69 depends on (ARCH_BCM_CYGNUS || COMPILE_TEST)
70 depends on OF
71 select PINMUX
72 select GENERIC_PINCONF
73 default ARCH_BCM_CYGNUS
74 help
75 Say yes here to enable the Broadcom Cygnus IOMUX driver.
76
77 The Broadcom Cygnus IOMUX driver supports group based IOMUX
78 configuration, with the exception that certain individual pins
79 can be overridden to GPIO function
80
81config PINCTRL_NS
82 bool "Broadcom Northstar pins driver"
83 depends on OF && (ARCH_BCM_5301X || COMPILE_TEST)
84 select PINMUX
85 select GENERIC_PINCONF
86 default ARCH_BCM_5301X
87 help
88 Say yes here to enable the Broadcom NS SoC pins driver.
89
90 The Broadcom Northstar pins driver supports muxing multi-purpose pins
91 that can be used for various functions (e.g. SPI, I2C, UART) as well
92 as GPIOs.
93
94config PINCTRL_NSP_GPIO
95 bool "Broadcom NSP GPIO (with PINCONF) driver"
96 depends on OF_GPIO && (ARCH_BCM_NSP || COMPILE_TEST)
97 select GPIOLIB_IRQCHIP
98 select PINCONF
99 select GENERIC_PINCONF
100 default ARCH_BCM_NSP
101 help
102 Say yes here to enable the Broadcom NSP GPIO driver.
103
104 The Broadcom Northstar Plus SoC ChipcommonA GPIO controller is
105 supported by this driver.
106
107 The ChipcommonA GPIO controller support basic PINCONF functions such
108 as bias pull up, pull down, and drive strength configurations, when
109 these pins are muxed to GPIO.
110
111config PINCTRL_NS2_MUX
112 bool "Broadcom Northstar2 pinmux driver"
113 depends on OF
114 depends on ARCH_BCM_IPROC || COMPILE_TEST
115 select PINMUX
116 select GENERIC_PINCONF
117 default ARM64 && ARCH_BCM_IPROC
118 help
119 Say yes here to enable the Broadcom NS2 MUX driver.
120
121 The Broadcom Northstar2 IOMUX driver supports group based IOMUX
122 configuration.
123
124config PINCTRL_NSP_MUX
125 bool "Broadcom NSP IOMUX driver"
126 depends on (ARCH_BCM_NSP || COMPILE_TEST)
127 depends on OF
128 select PINMUX
129 select GENERIC_PINCONF
130 default ARCH_BCM_NSP
131 help
132 Say yes here to enable the Broadcom NSP SOC IOMUX driver.
133
134 The Broadcom Northstar Plus IOMUX driver supports pin based IOMUX
135 configuration, with certain individual pins can be overridden
136 to GPIO function.