[PATCH] gpio: zevio: allow COMPILE_TEST builds

[Rosen Penev]

The ZEVIO GPIO driver uses generic platform, MMIO, and gpiolib interfaces.
Allow it to build with COMPILE_TEST so it gets coverage on non-ARM
platforms.

Drop the ARM-specific IOMEM() casts around the register pointer.  The
pointer is already __iomem, so readl() and writel() can use it directly.

Tested with:
make LLVM=1 ARCH=loongarch drivers/gpio/gpio-zevio.o

Assisted-by: Codex:GPT-5.5
Signed-off-by: Rosen Penev <rosenp@xxxxxxxxx>
---
 drivers/gpio/Kconfig      | 2 +-
 drivers/gpio/gpio-zevio.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 16c798446c46..f8e34b16fd99 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -859,7 +859,7 @@ config GPIO_XTENSA
 
 config GPIO_ZEVIO
 	bool "LSI ZEVIO SoC memory mapped GPIOs"
-	depends on ARM
+	depends on ARM || COMPILE_TEST
 	help
 	  Say yes here to support the GPIO controller in LSI ZEVIO SoCs.
 
diff --git a/drivers/gpio/gpio-zevio.c b/drivers/gpio/gpio-zevio.c
index 29375bea2289..af0158522ac5 100644
--- a/drivers/gpio/gpio-zevio.c
+++ b/drivers/gpio/gpio-zevio.c
@@ -64,14 +64,14 @@ static inline u32 zevio_gpio_port_get(struct zevio_gpio *c, unsigned pin,
 					unsigned port_offset)
 {
 	unsigned section_offset = ((pin >> 3) & 3)*ZEVIO_GPIO_SECTION_SIZE;
-	return readl(IOMEM(c->regs + section_offset + port_offset));
+	return readl(c->regs + section_offset + port_offset);
 }
 
 static inline void zevio_gpio_port_set(struct zevio_gpio *c, unsigned pin,
 					unsigned port_offset, u32 val)
 {
 	unsigned section_offset = ((pin >> 3) & 3)*ZEVIO_GPIO_SECTION_SIZE;
-	writel(val, IOMEM(c->regs + section_offset + port_offset));
+	writel(val, c->regs + section_offset + port_offset);
 }
 
 /* Functions for struct gpio_chip */
-- 
2.54.0