1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-elkhartlake.c b/drivers/gpio/gpio-elkhartlake.c
new file mode 100644
index 000000000000..b96e7928b6e5
--- /dev/null
+++ b/drivers/gpio/gpio-elkhartlake.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel Elkhart Lake PSE GPIO driver
+ *
+ * Copyright (c) 2023, 2025 Intel Corporation.
+ *
+ * Authors: Pandith N <pandith.n@intel.com>
+ *          Raag Jadav <raag.jadav@intel.com>
+ */
+
+#include <linux/auxiliary_bus.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/pm.h>
+
+#include <linux/ehl_pse_io_aux.h>
+
+#include "gpio-tangier.h"
+
+/* Each Intel EHL PSE GPIO Controller has 30 GPIO pins */
+#define EHL_PSE_NGPIO		30
+
+static int ehl_gpio_probe(struct auxiliary_device *adev, const struct auxiliary_device_id *id)
+{
+	struct device *dev = &adev->dev;
+	struct ehl_pse_io_data *data;
+	struct tng_gpio *priv;
+	int ret;
+
+	data = dev_get_platdata(dev);
+	if (!data)
+		return -ENODATA;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->reg_base = devm_ioremap_resource(dev, &data->mem);
+	if (IS_ERR(priv->reg_base))
+		return PTR_ERR(priv->reg_base);
+
+	priv->dev = dev;
+	priv->irq = data->irq;
+
+	priv->info.base = -1;
+	priv->info.ngpio = EHL_PSE_NGPIO;
+
+	priv->wake_regs.gwmr = GWMR_EHL;
+	priv->wake_regs.gwsr = GWSR_EHL;
+	priv->wake_regs.gsir = GSIR_EHL;
+
+	ret = devm_tng_gpio_probe(dev, priv);
+	if (ret)
+		return dev_err_probe(dev, ret, "tng_gpio_probe error\n");
+
+	auxiliary_set_drvdata(adev, priv);
+	return 0;
+}
+
+static const struct auxiliary_device_id ehl_gpio_ids[] = {
+	{ EHL_PSE_IO_NAME "." EHL_PSE_GPIO_NAME },
+	{ }
+};
+MODULE_DEVICE_TABLE(auxiliary, ehl_gpio_ids);
+
+static struct auxiliary_driver ehl_gpio_driver = {
+	.driver	= {
+		.pm	= pm_sleep_ptr(&tng_gpio_pm_ops),
+	},
+	.probe		= ehl_gpio_probe,
+	.id_table	= ehl_gpio_ids,
+};
+module_auxiliary_driver(ehl_gpio_driver);
+
+MODULE_AUTHOR("Pandith N <pandith.n@intel.com>");
+MODULE_AUTHOR("Raag Jadav <raag.jadav@intel.com>");
+MODULE_DESCRIPTION("Intel Elkhart Lake PSE GPIO driver");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS("GPIO_TANGIER");