[PATCH net-next 2/8] net: dsa: b53: mmap: Add reference to bcm63xx gpio controller
From: Kyle Hendry <hidden>
Date: 2025-07-16 00:29:37
Also in:
lkml, netdev
Subsystem:
broadcom b53/sf2 ethernet switch driver, networking drivers, networking [dsa], the rest · Maintainers:
Florian Fainelli, Jonas Gorski, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Andrew Lunn, Vladimir Oltean, Linus Torvalds
On bcm63xx SoCs there are registers that control the PHYs in the GPIO controller. Allow the b53 driver to access them by passing in the syscon through the device tree. Signed-off-by: Kyle Hendry <redacted> --- drivers/net/dsa/b53/b53_mmap.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/net/dsa/b53/b53_mmap.c b/drivers/net/dsa/b53/b53_mmap.c
index c687360a5b7f..a0c06d703861 100644
--- a/drivers/net/dsa/b53/b53_mmap.c
+++ b/drivers/net/dsa/b53/b53_mmap.c@@ -21,6 +21,7 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/io.h> +#include <linux/mfd/syscon.h> #include <linux/platform_device.h> #include <linux/platform_data/b53.h>
@@ -28,6 +29,7 @@ struct b53_mmap_priv { void __iomem *regs; + struct regmap *gpio_ctrl; }; static int b53_mmap_read8(struct b53_device *dev, u8 page, u8 reg, u8 *val)
@@ -313,6 +315,8 @@ static int b53_mmap_probe(struct platform_device *pdev) priv->regs = pdata->regs; + priv->gpio_ctrl = syscon_regmap_lookup_by_phandle(np, "brcm,gpio-ctrl"); + dev = b53_switch_alloc(&pdev->dev, &b53_mmap_ops, priv); if (!dev) return -ENOMEM;
--
2.43.0