linux-kernel - [PATCH v2 13/14] arm64: dts: Add DTS overlay for RP1 gpio line names

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Message-ID: <a29f2e534c2ea658fc7c1e61120476f4bd3c0585.1728300190.git.andrea.porta@suse.com>
Date: Mon,  7 Oct 2024 14:39:56 +0200
From: Andrea della Porta <andrea.porta@...e.com>
To: Andrea della Porta <andrea.porta@...e.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Derek Kiernan <derek.kiernan@....com>,
	Dragan Cvetic <dragan.cvetic@....com>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Saravana Kannan <saravanak@...gle.com>,
	linux-clk@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-rpi-kernel@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	Masahiro Yamada <masahiroy@...nel.org>,
	Stefan Wahren <wahrenst@....net>,
	Herve Codina <herve.codina@...tlin.com>,
	Luca Ceresoli <luca.ceresoli@...tlin.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	Andrew Lunn <andrew@...n.ch>
Subject: [PATCH v2 13/14] arm64: dts: Add DTS overlay for RP1 gpio line names

This DT overlay contains the gpio-line-names property for
RaspberryPi 5.

It's intended to be loaded from userspace leveraging the RP1
driver interface through configfs, as follows:

cat rpi-rp1-gpios-5-b.dtbo > /sys/kernel/config/rp1-cfg/gpio_set_names

Signed-off-by: Andrea della Porta <andrea.porta@...e.com>
---
 MAINTAINERS                                   |  1 +
 arch/arm64/boot/dts/broadcom/Makefile         |  3 +-
 .../boot/dts/broadcom/rpi-rp1-gpios-5-b.dtso  | 62 +++++++++++++++++++
 3 files changed, 65 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/boot/dts/broadcom/rpi-rp1-gpios-5-b.dtso

diff --git a/MAINTAINERS b/MAINTAINERS
index 032678fb2470..2b61d9a84dae 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19384,6 +19384,7 @@ RASPBERRY PI RP1 PCI DRIVER
 M:	Andrea della Porta <andrea.porta@...e.com>
 S:	Maintained
 F:	arch/arm64/boot/dts/broadcom/rp1.dtso
+F:	arch/arm64/boot/dts/broadcom/rpi-rp1-gpios-5-b.dtso
 F:	Documentation/devicetree/bindings/clock/raspberrypi,rp1-clocks.yaml
 F:	Documentation/devicetree/bindings/misc/pci1de4,1.yaml
 F:	Documentation/devicetree/bindings/pci/pci-ep-bus.yaml
diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile
index 92565e9781ad..d384937b0536 100644
--- a/arch/arm64/boot/dts/broadcom/Makefile
+++ b/arch/arm64/boot/dts/broadcom/Makefile
@@ -11,7 +11,8 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-400.dtb \
 			      bcm2837-rpi-3-b.dtb \
 			      bcm2837-rpi-3-b-plus.dtb \
 			      bcm2837-rpi-cm3-io3.dtb \
-			      bcm2837-rpi-zero-2-w.dtb
+			      bcm2837-rpi-zero-2-w.dtb \
+			      rpi-rp1-gpios-5-b.dtbo
 
 subdir-y	+= bcmbca
 subdir-y	+= northstar2
diff --git a/arch/arm64/boot/dts/broadcom/rpi-rp1-gpios-5-b.dtso b/arch/arm64/boot/dts/broadcom/rpi-rp1-gpios-5-b.dtso
new file mode 100644
index 000000000000..76a243a71644
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/rpi-rp1-gpios-5-b.dtso
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+
+/dts-v1/;
+/plugin/;
+
+&rp1_gpio {
+	gpio-line-names =
+		"ID_SDA", // GPIO0
+		"ID_SCL", // GPIO1
+		"GPIO2", // GPIO2
+		"GPIO3", // GPIO3
+		"GPIO4", // GPIO4
+		"GPIO5", // GPIO5
+		"GPIO6", // GPIO6
+		"GPIO7", // GPIO7
+		"GPIO8", // GPIO8
+		"GPIO9", // GPIO9
+		"GPIO10", // GPIO10
+		"GPIO11", // GPIO11
+		"GPIO12", // GPIO12
+		"GPIO13", // GPIO13
+		"GPIO14", // GPIO14
+		"GPIO15", // GPIO15
+		"GPIO16", // GPIO16
+		"GPIO17", // GPIO17
+		"GPIO18", // GPIO18
+		"GPIO19", // GPIO19
+		"GPIO20", // GPIO20
+		"GPIO21", // GPIO21
+		"GPIO22", // GPIO22
+		"GPIO23", // GPIO23
+		"GPIO24", // GPIO24
+		"GPIO25", // GPIO25
+		"GPIO26", // GPIO26
+		"GPIO27", // GPIO27
+		"PCIE_RP1_WAKE", // GPIO28
+		"FAN_TACH", // GPIO29
+		"HOST_SDA", // GPIO30
+		"HOST_SCL", // GPIO31
+		"ETH_RST_N", // GPIO32
+		"", // GPIO33
+		"CD0_IO0_MICCLK", // GPIO34
+		"CD0_IO0_MICDAT0", // GPIO35
+		"RP1_PCIE_CLKREQ_N", // GPIO36
+		"", // GPIO37
+		"CD0_SDA", // GPIO38
+		"CD0_SCL", // GPIO39
+		"CD1_SDA", // GPIO40
+		"CD1_SCL", // GPIO41
+		"USB_VBUS_EN", // GPIO42
+		"USB_OC_N", // GPIO43
+		"RP1_STAT_LED", // GPIO44
+		"FAN_PWM", // GPIO45
+		"CD1_IO0_MICCLK", // GPIO46
+		"2712_WAKE", // GPIO47
+		"CD1_IO1_MICDAT1", // GPIO48
+		"EN_MAX_USB_CUR", // GPIO49
+		"", // GPIO50
+		"", // GPIO51
+		"", // GPIO52
+		""; // GPIO53
+};
-- 
2.35.3