From: Prathamesh Shete <pshete@nvidia.com>
Date: Sat, 23 Aug 2025 05:54:20 +0000 (+0530)
Subject: gpio: tegra186: Add support for Tegra256
X-Git-Tag: v6.18-rc1~168^2~64
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=db12ee08726e55c8a1a70c2308f98d121d96edc6;p=thirdparty%2Fkernel%2Flinux.git

gpio: tegra186: Add support for Tegra256

Extend the existing Tegra186 GPIO controller driver with support for the
GPIO controller found on Tegra256. While the programming model remains
the same, the number of pins has slightly changed.

Signed-off-by: Prathamesh Shete <pshete@nvidia.com>
Link: https://lore.kernel.org/r/20250823055420.24664-2-pshete@nvidia.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---

diff --git a/drivers/gpio/gpio-tegra186.c b/drivers/gpio/gpio-tegra186.c
index 5fd3ec3e2c53d..4d3db6e06eeb2 100644
--- a/drivers/gpio/gpio-tegra186.c
+++ b/drivers/gpio/gpio-tegra186.c
@@ -20,6 +20,7 @@
 #include <dt-bindings/gpio/tegra194-gpio.h>
 #include <dt-bindings/gpio/tegra234-gpio.h>
 #include <dt-bindings/gpio/tegra241-gpio.h>
+#include <dt-bindings/gpio/tegra256-gpio.h>
 
 /* security registers */
 #define TEGRA186_GPIO_CTL_SCR 0x0c
@@ -1279,6 +1280,30 @@ static const struct tegra_gpio_soc tegra241_aon_soc = {
 	.has_vm_support = false,
 };
 
+#define TEGRA256_MAIN_GPIO_PORT(_name, _bank, _port, _pins)	\
+	[TEGRA256_MAIN_GPIO_PORT_##_name] = {			\
+		.name = #_name,					\
+		.bank = _bank,					\
+		.port = _port,					\
+		.pins = _pins,					\
+	}
+
+static const struct tegra_gpio_port tegra256_main_ports[] = {
+	TEGRA256_MAIN_GPIO_PORT(A, 0, 0, 8),
+	TEGRA256_MAIN_GPIO_PORT(B, 0, 1, 8),
+	TEGRA256_MAIN_GPIO_PORT(C, 0, 2, 8),
+	TEGRA256_MAIN_GPIO_PORT(D, 0, 3, 8),
+};
+
+static const struct tegra_gpio_soc tegra256_main_soc = {
+	.num_ports = ARRAY_SIZE(tegra256_main_ports),
+	.ports = tegra256_main_ports,
+	.name = "tegra256-gpio-main",
+	.instance = 1,
+	.num_irqs_per_bank = 8,
+	.has_vm_support = true,
+};
+
 static const struct of_device_id tegra186_gpio_of_match[] = {
 	{
 		.compatible = "nvidia,tegra186-gpio",
@@ -1298,6 +1323,9 @@ static const struct of_device_id tegra186_gpio_of_match[] = {
 	}, {
 		.compatible = "nvidia,tegra234-gpio-aon",
 		.data = &tegra234_aon_soc
+	}, {
+		.compatible = "nvidia,tegra256-gpio",
+		.data = &tegra256_main_soc
 	}, {
 		/* sentinel */
 	}