[PATCH] gpio: move ppc4xx gpio driver from arch/powerpc to drivers/gpio
From: Rosen Penev <hidden>
Date: 2026-05-28 02:56:28
Also in:
linux-gpio, lkml
Subsystem:
gpio subsystem, linux for powerpc (32-bit and 64-bit), linux for powerpc embedded ppc4xx, the rest · Maintainers:
Linus Walleij, Bartosz Golaszewski, Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
Move the ppc4xx gpio driver out of arch/powerpc/platforms/44x/ into drivers/gpio/gpio-ppc4xx.c. The driver has no architecture-specific dependencies and follows the same pattern as other PowerPC GPIO drivers already in drivers/gpio/ (e.g. gpio-mpc8xxx, gpio-mpc5200). - Renamed Kconfig symbol from PPC4xx_GPIO to GPIO_PPC4XX - Updated ppc44x_defconfig and warp_defconfig to use the new symbol - Marked the new option as tristate (was bool) since the driver supports module build via module_platform_driver() - Added COMPILE_TEST support. Needs PPC as clrbits32 is in use. Assisted-by: OpenCode:BigPickle Signed-off-by: mangix <redacted> --- arch/powerpc/configs/44x/warp_defconfig | 2 +- arch/powerpc/configs/ppc44x_defconfig | 2 +- arch/powerpc/platforms/44x/Kconfig | 7 ------- arch/powerpc/platforms/44x/Makefile | 1 - drivers/gpio/Kconfig | 7 +++++++ drivers/gpio/Makefile | 1 + .../platforms/44x/gpio.c => drivers/gpio/gpio-ppc4xx.c | 0 7 files changed, 10 insertions(+), 10 deletions(-) rename arch/powerpc/platforms/44x/gpio.c => drivers/gpio/gpio-ppc4xx.c (100%)
diff --git a/arch/powerpc/configs/44x/warp_defconfig b/arch/powerpc/configs/44x/warp_defconfig
index 5757625469c4..380fa15af68d 100644
--- a/arch/powerpc/configs/44x/warp_defconfig
+++ b/arch/powerpc/configs/44x/warp_defconfig@@ -12,7 +12,7 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set # CONFIG_EBONY is not set CONFIG_WARP=y -CONFIG_PPC4xx_GPIO=y +CONFIG_GPIO_PPC4XX=y CONFIG_HZ_1000=y CONFIG_CMDLINE="ip=on" # CONFIG_PCI is not set
diff --git a/arch/powerpc/configs/ppc44x_defconfig b/arch/powerpc/configs/ppc44x_defconfig
index 41c930f74ed4..57a7342232d7 100644
--- a/arch/powerpc/configs/ppc44x_defconfig
+++ b/arch/powerpc/configs/ppc44x_defconfig@@ -22,7 +22,7 @@ CONFIG_GLACIER=y CONFIG_REDWOOD=y CONFIG_EIGER=y CONFIG_YOSEMITE=y -CONFIG_PPC4xx_GPIO=y +CONFIG_GPIO_PPC4XX=y CONFIG_MATH_EMULATION=y CONFIG_NET=y CONFIG_PACKET=y
diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
index fc79f8466933..150813cea945 100644
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig@@ -227,13 +227,6 @@ config PPC44x_SIMPLE help This option enables the simple PowerPC 44x platform support. -config PPC4xx_GPIO - bool "PPC4xx GPIO support" - depends on 44x - select GPIOLIB - help - Enable gpiolib support for ppc440 based boards - # 44x specific CPU modules, selected based on the board above. config 440EP bool
diff --git a/arch/powerpc/platforms/44x/Makefile b/arch/powerpc/platforms/44x/Makefile
index ca7b1bb442d9..179468a00f5e 100644
--- a/arch/powerpc/platforms/44x/Makefile
+++ b/arch/powerpc/platforms/44x/Makefile@@ -15,4 +15,3 @@ obj-$(CONFIG_FSP2) += fsp2.o obj-$(CONFIG_PCI) += pci.o obj-$(CONFIG_PPC4xx_HSTA_MSI) += hsta_msi.o obj-$(CONFIG_PPC4xx_CPM) += cpm.o -obj-$(CONFIG_PPC4xx_GPIO) += gpio.o
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 020e51e30317..b87d2329900b 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig@@ -584,6 +584,13 @@ config GPIO_POLARFIRE_SOC help Say yes here to support the GPIO controllers on Microchip FPGAs. +config GPIO_PPC4XX + tristate "PPC4xx GPIO support" + depends on 44x || (PPC && COMPILE_TEST) + select GPIO_GENERIC + help + Enable gpiolib support for ppc440 based boards. + config GPIO_PXA bool "PXA GPIO support" depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index b267598b517d..192242988ecb 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile@@ -145,6 +145,7 @@ obj-$(CONFIG_GPIO_PCIE_IDIO_24) += gpio-pcie-idio-24.o obj-$(CONFIG_GPIO_PCI_IDIO_16) += gpio-pci-idio-16.o obj-$(CONFIG_GPIO_PISOSR) += gpio-pisosr.o obj-$(CONFIG_GPIO_PL061) += gpio-pl061.o +obj-$(CONFIG_GPIO_PPC4XX) += gpio-ppc4xx.o obj-$(CONFIG_GPIO_PMIC_EIC_SPRD) += gpio-pmic-eic-sprd.o obj-$(CONFIG_GPIO_POLARFIRE_SOC) += gpio-mpfs.o obj-$(CONFIG_GPIO_PXA) += gpio-pxa.o
diff --git a/arch/powerpc/platforms/44x/gpio.c b/drivers/gpio/gpio-ppc4xx.c
similarity index 100%
rename from arch/powerpc/platforms/44x/gpio.c
rename to drivers/gpio/gpio-ppc4xx.c
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2.54.0