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authorUwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com>2026-05-21 13:46:36 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-05-23 14:47:34 +0300
commit7b1d4ad96ea47b3275328fa385d0497e164f1f5f (patch)
tree24bc654193a592c425252009142a639488722ef6
parentd14b649fd99f1691848bc57789c2cf6908e3d4dc (diff)
downloadlinux-7b1d4ad96ea47b3275328fa385d0497e164f1f5f.tar.xz
misc: pch_phub: Introduce an enum for device indentification
Instead of using magic constants give them names that make the code more idiomatic. While touching the pci_device_id array, use named initializers to assign .driver_data. Signed-off-by: Uwe Kleine-König (The Capable Hub) <u.kleine-koenig@baylibre.com> Link: https://patch.msgid.link/62223b743982616b1085c03f67ff88a2412d3da1.1779360001.git.u.kleine-koenig@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/misc/pch_phub.c28
1 files changed, 18 insertions, 10 deletions
diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
index 539912e825eb..19c4fa017f24 100644
--- a/drivers/misc/pch_phub.c
+++ b/drivers/misc/pch_phub.c
@@ -537,6 +537,14 @@ static const struct bin_attribute pch_bin_attr = {
.write = pch_phub_bin_write,
};
+enum {
+ PCH_EG20T,
+ PCH_ML7213,
+ PCH_ML7223M,
+ PCH_ML7223N,
+ PCH_ML7831,
+};
+
static int pch_phub_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
@@ -579,7 +587,7 @@ static int pch_phub_probe(struct pci_dev *pdev,
chip->pdev = pdev; /* Save pci device struct */
- if (id->driver_data == 1) { /* EG20T PCH */
+ if (id->driver_data == PCH_EG20T) { /* EG20T PCH */
const char *board_name;
unsigned int prefetch = 0x000affaa;
@@ -627,7 +635,7 @@ static int pch_phub_probe(struct pci_dev *pdev,
CLKCFG_UART_MASK);
}
}
- } else if (id->driver_data == 2) { /* ML7213 IOH */
+ } else if (id->driver_data == PCH_ML7213) { /* ML7213 IOH */
ret = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr);
if (ret)
goto err_sysfs_create;
@@ -640,7 +648,7 @@ static int pch_phub_probe(struct pci_dev *pdev,
iowrite32(0x000affa0, chip->pch_phub_base_address + 0x14);
chip->pch_opt_rom_start_address =\
PCH_PHUB_ROM_START_ADDR_ML7213;
- } else if (id->driver_data == 3) { /* ML7223 IOH Bus-m*/
+ } else if (id->driver_data == PCH_ML7223M) { /* ML7223 IOH Bus-m*/
/* set the prefech value
* Device8(GbE)
*/
@@ -650,7 +658,7 @@ static int pch_phub_probe(struct pci_dev *pdev,
chip->pch_opt_rom_start_address =\
PCH_PHUB_ROM_START_ADDR_ML7223;
chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_ML7223;
- } else if (id->driver_data == 4) { /* ML7223 IOH Bus-n*/
+ } else if (id->driver_data == PCH_ML7223N) { /* ML7223 IOH Bus-n*/
ret = sysfs_create_file(&pdev->dev.kobj,
&dev_attr_pch_mac.attr);
if (ret)
@@ -667,7 +675,7 @@ static int pch_phub_probe(struct pci_dev *pdev,
chip->pch_opt_rom_start_address =\
PCH_PHUB_ROM_START_ADDR_ML7223;
chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_ML7223;
- } else if (id->driver_data == 5) { /* ML7831 */
+ } else if (id->driver_data == PCH_ML7831) { /* ML7831 */
ret = sysfs_create_file(&pdev->dev.kobj,
&dev_attr_pch_mac.attr);
if (ret)
@@ -731,11 +739,11 @@ static int __maybe_unused pch_phub_resume(struct device *dev_d)
}
static const struct pci_device_id pch_phub_pcidev_id[] = {
- { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_PCH1_PHUB), 1, },
- { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7213_PHUB), 2, },
- { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7223_mPHUB), 3, },
- { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7223_nPHUB), 4, },
- { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7831_PHUB), 5, },
+ { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_PCH1_PHUB), .driver_data = PCH_EG20T },
+ { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7213_PHUB), .driver_data = PCH_ML7213 },
+ { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7223_mPHUB), .driver_data = PCH_ML7223M },
+ { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7223_nPHUB), .driver_data = PCH_ML7223N },
+ { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7831_PHUB), .driver_data = PCH_ML7831 },
{ }
};
MODULE_DEVICE_TABLE(pci, pch_phub_pcidev_id);