1 files changed, 2 insertions, 98 deletions

diff --git a/drivers/char/tpm/st33zp24/spi.c b/drivers/char/tpm/st33zp24/spi.c
index 49630f2cb9b4..ff4adbe104cf 100644
--- a/drivers/char/tpm/st33zp24/spi.c
+++ b/drivers/char/tpm/st33zp24/spi.c
@@ -6,10 +6,7 @@
 
 #include <linux/module.h>
 #include <linux/spi/spi.h>
-#include <linux/gpio.h>
-#include <linux/gpio/consumer.h>
-#include <linux/of_irq.h>
-#include <linux/of_gpio.h>
+#include <linux/of.h>
 #include <linux/acpi.h>
 #include <linux/tpm.h>
 
@@ -60,7 +57,6 @@ struct st33zp24_spi_phy {
 	u8 tx_buf[ST33ZP24_SPI_BUFFER_SIZE];
 	u8 rx_buf[ST33ZP24_SPI_BUFFER_SIZE];
 
-	int io_lpcpd;
 	int latency;
 };
 
@@ -217,84 +213,6 @@ static const struct st33zp24_phy_ops spi_phy_ops = {
 	.recv = st33zp24_spi_recv,
 };
 
-static const struct acpi_gpio_params lpcpd_gpios = { 1, 0, false };
-
-static const struct acpi_gpio_mapping acpi_st33zp24_gpios[] = {
-	{ "lpcpd-gpios", &lpcpd_gpios, 1 },
-	{},
-};
-
-static int st33zp24_spi_acpi_request_resources(struct spi_device *spi_dev)
-{
-	struct tpm_chip *chip = spi_get_drvdata(spi_dev);
-	struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
-	struct st33zp24_spi_phy *phy = tpm_dev->phy_id;
-	struct gpio_desc *gpiod_lpcpd;
-	struct device *dev = &spi_dev->dev;
-	int ret;
-
-	ret = devm_acpi_dev_add_driver_gpios(dev, acpi_st33zp24_gpios);
-	if (ret)
-		return ret;
-
-	/* Get LPCPD GPIO from ACPI */
-	gpiod_lpcpd = devm_gpiod_get(dev, "lpcpd", GPIOD_OUT_HIGH);
-	if (IS_ERR(gpiod_lpcpd)) {
-		dev_err(dev, "Failed to retrieve lpcpd-gpios from acpi.\n");
-		phy->io_lpcpd = -1;
-		/*
-		 * lpcpd pin is not specified. This is not an issue as
-		 * power management can be also managed by TPM specific
-		 * commands. So leave with a success status code.
-		 */
-		return 0;
-	}
-
-	phy->io_lpcpd = desc_to_gpio(gpiod_lpcpd);
-
-	return 0;
-}
-
-static int st33zp24_spi_of_request_resources(struct spi_device *spi_dev)
-{
-	struct tpm_chip *chip = spi_get_drvdata(spi_dev);
-	struct st33zp24_dev *tpm_dev = dev_get_drvdata(&chip->dev);
-	struct st33zp24_spi_phy *phy = tpm_dev->phy_id;
-	struct device_node *pp;
-	int gpio;
-	int ret;
-
-	pp = spi_dev->dev.of_node;
-	if (!pp) {
-		dev_err(&spi_dev->dev, "No platform data\n");
-		return -ENODEV;
-	}
-
-	/* Get GPIO from device tree */
-	gpio = of_get_named_gpio(pp, "lpcpd-gpios", 0);
-	if (gpio < 0) {
-		dev_err(&spi_dev->dev,
-			"Failed to retrieve lpcpd-gpios from dts.\n");
-		phy->io_lpcpd = -1;
-		/*
-		 * lpcpd pin is not specified. This is not an issue as
-		 * power management can be also managed by TPM specific
-		 * commands. So leave with a success status code.
-		 */
-		return 0;
-	}
-	/* GPIO request and configuration */
-	ret = devm_gpio_request_one(&spi_dev->dev, gpio,
-			GPIOF_OUT_INIT_HIGH, "TPM IO LPCPD");
-	if (ret) {
-		dev_err(&spi_dev->dev, "Failed to request lpcpd pin\n");
-		return -ENODEV;
-	}
-	phy->io_lpcpd = gpio;
-
-	return 0;
-}
-
 /*
  * st33zp24_spi_probe initialize the TPM device
  * @param: dev, the spi_device description (TPM SPI description).
@@ -303,7 +221,6 @@ static int st33zp24_spi_of_request_resources(struct spi_device *spi_dev)
  */
 static int st33zp24_spi_probe(struct spi_device *dev)
 {
-	int ret;
 	struct st33zp24_spi_phy *phy;
 
 	/* Check SPI platform functionnalities */
@@ -320,24 +237,11 @@ static int st33zp24_spi_probe(struct spi_device *dev)
 
 	phy->spi_device = dev;
 
-	if (dev->dev.of_node) {
-		ret = st33zp24_spi_of_request_resources(dev);
-		if (ret)
-			return ret;
-	} else if (ACPI_HANDLE(&dev->dev)) {
-		ret = st33zp24_spi_acpi_request_resources(dev);
-		if (ret)
-			return ret;
-	} else {
-		return -ENODEV;
-	}
-
 	phy->latency = st33zp24_spi_evaluate_latency(phy);
 	if (phy->latency <= 0)
 		return -ENODEV;
 
-	return st33zp24_probe(phy, &spi_phy_ops, &dev->dev, dev->irq,
-			      phy->io_lpcpd);
+	return st33zp24_probe(phy, &spi_phy_ops, &dev->dev, dev->irq);
 }
 
 /*