From: Hongwei Zhang <hongweiz@ami.com>
To: Andrew Jeffery <andrew@aj.id.au>,
Linus Walleij <linus.walleij@linaro.org>,
<linux-gpio@vger.kernel.org>, Joel Stanley <joel@jms.id.au>
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
linux-aspeed@lists.ozlabs.org,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
linux-kernel@vger.kernel.org,
Russell King <linux@armlinux.org.uk>,
Mike Rapoport <rppt@linux.ibm.com>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>,
Rob Herring <robh+dt@kernel.org>,
Benjamin Gaignard <benjamin.gaignard@linaro.org>,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
Doug Anderson <armlinux@m.disordat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Hongwei Zhang <hongweiz@ami.com>,
linux-arm-kernel@lists.infradead.org
Subject: [v1, 1/1] gpio: dts: aspeed: Add SGPIO driver
Date: Tue, 24 Sep 2019 15:07:01 -0400 [thread overview]
Message-ID: <1569352021-6383-1-git-send-email-hongweiz@ami.com> (raw)
Add SGPIO driver support for Aspeed AST2500 SoC.
Signed-off-by: Hongwei Zhang <hongweiz@ami.com>
---
arch/arm/Kconfig | 2 ++
arch/arm/boot/dts/aspeed-g5.dtsi | 16 +++++++++++++++-
drivers/gpio/Kconfig | 8 ++++++++
drivers/gpio/Makefile | 1 +
4 files changed, 26 insertions(+), 1 deletion(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2436021..c9f08ab 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1460,6 +1460,8 @@ config ARCH_NR_GPIO
default 416 if ARCH_SUNXI
default 392 if ARCH_U8500
default 352 if ARCH_VT8500
+ default 312 if MACH_ASPEED_G5
+ default 304 if MACH_ASPEED_G4
default 288 if ARCH_ROCKCHIP
default 264 if MACH_H4700
default 0
diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi
index 00f05bd..85da7ea 100644
--- a/arch/arm/boot/dts/aspeed-g5.dtsi
+++ b/arch/arm/boot/dts/aspeed-g5.dtsi
@@ -311,7 +311,7 @@
#gpio-cells = <2>;
gpio-controller;
compatible = "aspeed,ast2500-gpio";
- reg = <0x1e780000 0x1000>;
+ reg = <0x1e780000 0x200>;
interrupts = <20>;
gpio-ranges = <&pinctrl 0 0 232>;
clocks = <&syscon ASPEED_CLK_APB>;
@@ -319,6 +319,20 @@
#interrupt-cells = <2>;
};
+ sgpio: sgpio@1e780200 {
+ #gpio-cells = <2>;
+ compatible = "aspeed,ast2500-sgpio";
+ gpio-controller;
+ interrupts = <40>;
+ reg = <0x1e780200 0x0100>;
+ clocks = <&syscon ASPEED_CLK_APB>;
+ interrupt-controller;
+ ngpios = <8>;
+ bus-frequency = <12000000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sgpm_default>;
+ };
+
rtc: rtc@1e781000 {
compatible = "aspeed,ast2500-rtc";
reg = <0x1e781000 0x18>;
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index bb13c26..e94f903 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -120,6 +120,14 @@ config GPIO_ASPEED
help
Say Y here to support Aspeed AST2400 and AST2500 GPIO controllers.
+config SGPIO_ASPEED
+ bool "Aspeed SGPIO support"
+ depends on (ARCH_ASPEED || COMPILE_TEST) && OF_GPIO
+ select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
+ help
+ Say Y here to support Aspeed AST2500 SGPIO functionality.
+
config GPIO_ATH79
tristate "Atheros AR71XX/AR724X/AR913X GPIO support"
default y if ATH79
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index a4e9117..bebbd82 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -32,6 +32,7 @@ obj-$(CONFIG_GPIO_AMD_FCH) += gpio-amd-fch.o
obj-$(CONFIG_GPIO_AMDPT) += gpio-amdpt.o
obj-$(CONFIG_GPIO_ARIZONA) += gpio-arizona.o
obj-$(CONFIG_GPIO_ASPEED) += gpio-aspeed.o
+obj-$(CONFIG_SGPIO_ASPEED) += sgpio-aspeed.o
obj-$(CONFIG_GPIO_ATH79) += gpio-ath79.o
obj-$(CONFIG_GPIO_BCM_KONA) += gpio-bcm-kona.o
obj-$(CONFIG_GPIO_BD70528) += gpio-bd70528.o
--
2.7.4
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next reply other threads:[~2019-09-24 19:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-24 19:07 Hongwei Zhang [this message]
2019-09-25 7:31 ` [v1, 1/1] gpio: dts: aspeed: Add SGPIO driver Bartosz Golaszewski
2019-09-25 19:19 ` Hongwei Zhang
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