intel_scu_ipc: Convert to use struct device *

Switch the code to use struct device * instead of struct pci_dev * since there
is no reason to access PCI related features in the driver.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>

1 files changed, 18 insertions, 23 deletions

diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index 6c9367fe569c..5087485a1fa7 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -92,11 +92,8 @@ static struct intel_scu_ipc_pdata_t intel_scu_ipc_tangier_pdata = {
         .irq_mode = 0,
 };
 
-static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id);
-static void ipc_remove(struct pci_dev *pdev);
-
 struct intel_scu_ipc_dev {
-        struct pci_dev *pdev;
+        struct device *dev;
         void __iomem *ipc_base;
         void __iomem *i2c_base;
         struct completion cmd_complete;
@@ -181,7 +178,7 @@ static inline int busy_loop(struct intel_scu_ipc_dev *scu)
         }
 
         if (status & BIT(0)) {
-                dev_err(&scu->pdev->dev, "IPC timed out");
+                dev_err(scu->dev, "IPC timed out");
                 return -ETIMEDOUT;
         }
 
@@ -197,8 +194,7 @@ static inline int ipc_wait_for_interrupt(struct intel_scu_ipc_dev *scu)
         int status;
 
         if (!wait_for_completion_timeout(&scu->cmd_complete, 3 * HZ)) {
-                struct device *dev = &scu->pdev->dev;
-                dev_err(dev, "IPC timed out\n");
+                dev_err(scu->dev, "IPC timed out\n");
                 return -ETIMEDOUT;
         }
 
@@ -228,7 +224,7 @@ static int pwr_reg_rdwr(u16 *addr, u8 *data, u32 count, u32 op, u32 id)
 
         mutex_lock(&ipclock);
 
-        if (scu->pdev == NULL) {
+        if (scu->dev == NULL) {
                 mutex_unlock(&ipclock);
                 return -ENODEV;
         }
@@ -445,7 +441,7 @@ int intel_scu_ipc_simple_command(int cmd, int sub)
         int err;
 
         mutex_lock(&ipclock);
-        if (scu->pdev == NULL) {
+        if (scu->dev == NULL) {
                 mutex_unlock(&ipclock);
                 return -ENODEV;
         }
@@ -475,7 +471,7 @@ int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen,
         int i, err;
 
         mutex_lock(&ipclock);
-        if (scu->pdev == NULL) {
+        if (scu->dev == NULL) {
                 mutex_unlock(&ipclock);
                 return -ENODEV;
         }
@@ -518,7 +514,7 @@ int intel_scu_ipc_i2c_cntrl(u32 addr, u32 *data)
         u32 cmd = 0;
 
         mutex_lock(&ipclock);
-        if (scu->pdev == NULL) {
+        if (scu->dev == NULL) {
                 mutex_unlock(&ipclock);
                 return -ENODEV;
         }
@@ -533,7 +529,7 @@ int intel_scu_ipc_i2c_cntrl(u32 addr, u32 *data)
                 mdelay(1);
                 writel(addr, scu->i2c_base + IPC_I2C_CNTRL_ADDR);
         } else {
-                dev_err(&scu->pdev->dev,
+                dev_err(scu->dev,
                         "intel_scu_ipc: I2C INVALID_CMD = 0x%x\n", cmd);
 
                 mutex_unlock(&ipclock);
@@ -563,42 +559,42 @@ static irqreturn_t ioc(int irq, void *dev_id)
 
 /**
  *      ipc_probe       -       probe an Intel SCU IPC
- *      @dev: the PCI device matching
+ *      @pdev: the PCI device matching
  *      @id: entry in the match table
  *
  *      Enable and install an intel SCU IPC. This appears in the PCI space
  *      but uses some hard coded addresses as well.
  */
-static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id)
+static int ipc_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
         int err;
         struct intel_scu_ipc_dev *scu = &ipcdev;
         struct intel_scu_ipc_pdata_t *pdata;
 
-        if (scu->pdev)          /* We support only one SCU */
+        if (scu->dev)           /* We support only one SCU */
                 return -EBUSY;
 
         pdata = (struct intel_scu_ipc_pdata_t *)id->driver_data;
 
-        scu->pdev = pci_dev_get(dev);
+        scu->dev = &pdev->dev;
         scu->irq_mode = pdata->irq_mode;
 
-        err = pcim_enable_device(dev);
+        err = pcim_enable_device(pdev);
         if (err)
                 return err;
 
-        err = pcim_iomap_regions(dev, 1 << 0, pci_name(dev));
+        err = pcim_iomap_regions(pdev, 1 << 0, pci_name(pdev));
         if (err)
                 return err;
 
         init_completion(&scu->cmd_complete);
 
-        err = devm_request_irq(&dev->dev, dev->irq, ioc, 0, "intel_scu_ipc",
+        err = devm_request_irq(&pdev->dev, pdev->irq, ioc, 0, "intel_scu_ipc",
                                scu);
         if (err)
                 return err;
 
-        scu->ipc_base = pcim_iomap_table(dev)[0];
+        scu->ipc_base = pcim_iomap_table(pdev)[0];
 
         scu->i2c_base = ioremap_nocache(pdata->i2c_base, pdata->i2c_len);
         if (!scu->i2c_base)
@@ -606,7 +602,7 @@ static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id)
 
         intel_scu_devices_create();
 
-        pci_set_drvdata(dev, scu);
+        pci_set_drvdata(pdev, scu);
         return 0;
 }
 
@@ -624,8 +620,7 @@ static void ipc_remove(struct pci_dev *pdev)
 {
         struct intel_scu_ipc_dev *scu = pci_get_drvdata(pdev);
 
-        pci_dev_put(scu->pdev);
-        scu->pdev = NULL;
+        scu->dev = NULL;
         iounmap(scu->i2c_base);
         intel_scu_devices_destroy();
 }