[PATCH 4/5] PCI/PTM: Drop granularity parameter from pci_enable_ptm()

[Mika Westerberg <mika.westerberg@linux.intel.com>]

This is not used by any of the existing callers so we can simplify the
function slightly and get rid of that.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
---
 drivers/net/ethernet/intel/ice/ice_main.c      |  2 +-
 drivers/net/ethernet/intel/idpf/idpf_main.c    |  2 +-
 drivers/net/ethernet/intel/igc/igc_main.c      |  2 +-
 drivers/net/ethernet/mellanox/mlx5/core/main.c |  2 +-
 drivers/pci/pcie/ptm.c                         | 11 +++--------
 include/linux/pci.h                            |  4 ++--
 6 files changed, 9 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index ebf48feffb30..b35c4e4ecd2a 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -5028,7 +5028,7 @@ static int ice_init(struct ice_pf *pf)
 	}
 
 	if (pf->hw.mac_type == ICE_MAC_E830) {
-		err = pci_enable_ptm(pf->pdev, NULL);
+		err = pci_enable_ptm(pf->pdev);
 		if (err)
 			dev_dbg(dev, "PCIe PTM not supported by PCIe bus/controller\n");
 	}
diff --git a/drivers/net/ethernet/intel/idpf/idpf_main.c b/drivers/net/ethernet/intel/idpf/idpf_main.c
index 0dd741dcfcdb..ab3c409e587b 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_main.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_main.c
@@ -257,7 +257,7 @@ static int idpf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto err_free;
 	}
 
-	err = pci_enable_ptm(pdev, NULL);
+	err = pci_enable_ptm(pdev);
 	if (err)
 		pci_dbg(pdev, "PCIe PTM is not supported by PCIe bus/controller\n");
 
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 84f5d92c81cc..291222b06915 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -7124,7 +7124,7 @@ static int igc_probe(struct pci_dev *pdev,
 	if (err)
 		goto err_pci_reg;
 
-	err = pci_enable_ptm(pdev, NULL);
+	err = pci_enable_ptm(pdev);
 	if (err < 0)
 		dev_info(&pdev->dev, "PCIe PTM not supported by PCIe bus/controller\n");
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index fdc3ba20912e..0b94d4ed0ef6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -960,7 +960,7 @@ static int mlx5_pci_init(struct mlx5_core_dev *dev, struct pci_dev *pdev,
 
 	mlx5_pci_vsc_init(dev);
 
-	pci_enable_ptm(pdev, NULL);
+	pci_enable_ptm(pdev);
 
 	return 0;
 
diff --git a/drivers/pci/pcie/ptm.c b/drivers/pci/pcie/ptm.c
index 91a598ed534c..2c848ae4f15f 100644
--- a/drivers/pci/pcie/ptm.c
+++ b/drivers/pci/pcie/ptm.c
@@ -88,7 +88,7 @@ void pci_ptm_init(struct pci_dev *dev)
 
 	if (pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT ||
 	    pci_pcie_type(dev) == PCI_EXP_TYPE_UPSTREAM)
-		pci_enable_ptm(dev, NULL);
+		pci_enable_ptm(dev);
 }
 
 void pci_save_ptm_state(struct pci_dev *dev)
@@ -182,15 +182,13 @@ static int __pci_enable_ptm(struct pci_dev *dev)
 /**
  * pci_enable_ptm() - Enable Precision Time Measurement
  * @dev: PCI device
- * @granularity: pointer to return granularity
  *
- * Enable Precision Time Measurement for @dev.  If successful and
- * @granularity is non-NULL, return the Effective Granularity.
+ * Enable Precision Time Measurement for @dev.
  *
  * Return: zero if successful, or -EINVAL if @dev lacks a PTM Capability or
  * is not a PTM Root and lacks an upstream path of PTM-enabled devices.
  */
-int pci_enable_ptm(struct pci_dev *dev, u8 *granularity)
+int pci_enable_ptm(struct pci_dev *dev)
 {
 	int rc;
 	char clock_desc[8];
@@ -201,9 +199,6 @@ int pci_enable_ptm(struct pci_dev *dev, u8 *granularity)
 
 	dev->ptm_enabled = 1;
 
-	if (granularity)
-		*granularity = dev->ptm_granularity;
-
 	switch (dev->ptm_granularity) {
 	case 0:
 		snprintf(clock_desc, sizeof(clock_desc), "unknown");
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 1c270f1d5123..8aaa72dcb164 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1975,11 +1975,11 @@ struct pci_ptm_debugfs {
 };
 
 #ifdef CONFIG_PCIE_PTM
-int pci_enable_ptm(struct pci_dev *dev, u8 *granularity);
+int pci_enable_ptm(struct pci_dev *dev);
 void pci_disable_ptm(struct pci_dev *dev);
 bool pcie_ptm_enabled(struct pci_dev *dev);
 #else
-static inline int pci_enable_ptm(struct pci_dev *dev, u8 *granularity)
+static inline int pci_enable_ptm(struct pci_dev *dev)
 { return -EINVAL; }
 static inline void pci_disable_ptm(struct pci_dev *dev) { }
 static inline bool pcie_ptm_enabled(struct pci_dev *dev)
-- 
2.50.1