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 5fd3ec3e2c53d2ad14b0e77c4fc1a7e6433ddeb2..4d3db6e06eeb276b3dcc3e3ff3a717e6b6a17b13 100644 (file)
--- 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 */
        }