tpm/st33zp24/spi: Change xxx_request_resources header

Simplify st33zp24_spi_acpi_request_resources, st33zp24_spi_of_request_resources
and st33zp24_spi_request_resources to have the same prototype and using
spi_get_drvdata.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>

diff --git a/drivers/char/tpm/st33zp24/spi.c b/drivers/char/tpm/st33zp24/spi.c
index 173db72..6be51ac 100644 (file)
--- a/drivers/char/tpm/st33zp24/spi.c
+++ b/drivers/char/tpm/st33zp24/spi.c
@@ -229,9 +229,9 @@ static const struct st33zp24_phy_ops spi_phy_ops = {
        .recv = st33zp24_spi_recv,
 };
 
-static int st33zp24_spi_acpi_request_resources(struct st33zp24_spi_phy *phy)
+static int st33zp24_spi_acpi_request_resources(struct spi_device *spi_dev)
 {
-       struct spi_device *spi_dev = phy->spi_device;
+       struct st33zp24_spi_phy *phy = spi_get_drvdata(spi_dev);
        const struct acpi_device_id *id;
        struct gpio_desc *gpiod_lpcpd;
        struct device *dev;
@@ -265,23 +265,23 @@ static int st33zp24_spi_acpi_request_resources(struct st33zp24_spi_phy *phy)
        return 0;
 }
 
-static int st33zp24_spi_of_request_resources(struct st33zp24_spi_phy *phy)
+static int st33zp24_spi_of_request_resources(struct spi_device *spi_dev)
 {
+       struct st33zp24_spi_phy *phy = spi_get_drvdata(spi_dev);
        struct device_node *pp;
-       struct spi_device *dev = phy->spi_device;
        int gpio;
        int ret;
 
-       pp = dev->dev.of_node;
+       pp = spi_dev->dev.of_node;
        if (!pp) {
-               dev_err(&dev->dev, "No platform data\n");
+               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(&dev->dev,
+               dev_err(&spi_dev->dev,
                        "Failed to retrieve lpcpd-gpios from dts.\n");
                phy->io_lpcpd = -1;
                /*
@@ -292,10 +292,10 @@ static int st33zp24_spi_of_request_resources(struct st33zp24_spi_phy *phy)
                return 0;
        }
        /* GPIO request and configuration */
-       ret = devm_gpio_request_one(&dev->dev, gpio,
+       ret = devm_gpio_request_one(&spi_dev->dev, gpio,
                        GPIOF_OUT_INIT_HIGH, "TPM IO LPCPD");
        if (ret) {
-               dev_err(&dev->dev, "Failed to request lpcpd pin\n");
+               dev_err(&spi_dev->dev, "Failed to request lpcpd pin\n");
                return -ENODEV;
        }
        phy->io_lpcpd = gpio;
@@ -303,9 +303,9 @@ static int st33zp24_spi_of_request_resources(struct st33zp24_spi_phy *phy)
        return 0;
 }
 
-static int st33zp24_spi_request_resources(struct spi_device *dev,
-                                         struct st33zp24_spi_phy *phy)
+static int st33zp24_spi_request_resources(struct spi_device *dev)
 {
+       struct st33zp24_spi_phy *phy = spi_get_drvdata(dev);
        struct st33zp24_platform_data *pdata;
        int ret;
 
@@ -357,17 +357,20 @@ static int st33zp24_spi_probe(struct spi_device *dev)
                return -ENOMEM;
 
        phy->spi_device = dev;
+
+       spi_set_drvdata(dev, phy);
+
        pdata = dev->dev.platform_data;
        if (!pdata && dev->dev.of_node) {
-               ret = st33zp24_spi_of_request_resources(phy);
+               ret = st33zp24_spi_of_request_resources(dev);
                if (ret)
                        return ret;
        } else if (pdata) {
-               ret = st33zp24_spi_request_resources(dev, phy);
+               ret = st33zp24_spi_request_resources(dev);
                if (ret)
                        return ret;
        } else if (ACPI_HANDLE(&dev->dev)) {
-               ret = st33zp24_spi_acpi_request_resources(phy);
+               ret = st33zp24_spi_acpi_request_resources(dev);
                if (ret)
                        return ret;
        }