mei: me: constify the device parameter to the probe quirk

The quirk_probe there is no writing to pci device hence
we can constify the passed pci_dev pointer.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20200619165121.2145330-2-tomas.winkler@intel.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/mei/hw-me.c

@@ -1353,7 +1353,7 @@ static const struct mei_hw_ops mei_me_hw_ops = {
 	.read = mei_me_read_slots
 };
 
-static bool mei_me_fw_type_nm(struct pci_dev *pdev)
+static bool mei_me_fw_type_nm(const struct pci_dev *pdev)
 {
 	u32 reg;
 
@@ -1366,7 +1366,7 @@ static bool mei_me_fw_type_nm(struct pci_dev *pdev)
 #define MEI_CFG_FW_NM                           \
 	.quirk_probe = mei_me_fw_type_nm
 
-static bool mei_me_fw_type_sps_4(struct pci_dev *pdev)
+static bool mei_me_fw_type_sps_4(const struct pci_dev *pdev)
 {
 	u32 reg;
 	unsigned int devfn;
@@ -1395,7 +1395,7 @@ static bool mei_me_fw_type_sps_4(struct pci_dev *pdev)
  *
  * Return: true in case of SPS firmware
  */
-static bool mei_me_fw_type_sps(struct pci_dev *pdev)
+static bool mei_me_fw_type_sps(const struct pci_dev *pdev)
 {
 	u32 reg;
 	u32 fw_type;

drivers/misc/mei/hw-me.h

@@ -25,7 +25,7 @@
  */
 struct mei_cfg {
 	const struct mei_fw_status fw_status;
-	bool (*quirk_probe)(struct pci_dev *pdev);
+	bool (*quirk_probe)(const struct pci_dev *pdev);
 	size_t dma_size[DMA_DSCR_NUM];
 	u32 fw_ver_supported:1;
 	u32 hw_trc_supported:1;