The following commit has been merged into the x86/irq branch of tip:
Commit-ID: 5a0e5fa957db79177baa851d687b6f6aa5a0be96
Gitweb: https://git.kernel.org/tip/5a0e5fa957db79177baa851d687b6f6aa5a0be96
Author: Maciej W. Rozycki <macro@xxxxxxxxxxx>
AuthorDate: Thu, 31 Mar 2022 08:10:39 +01:00
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Sun, 10 Apr 2022 12:48:14 +02:00
x86/PCI: Disambiguate SiS85C503 PIRQ router code entities
In preparation to adding support for the SiS85C497 PIRQ router add `503'
to the names of SiS85C503 PIRQ router code entities so that they clearly
indicate which device they refer to.
Also restructure `sis_router_probe' such that new device IDs will be
just new switch cases.
No functional change.
Signed-off-by: Maciej W. Rozycki <macro@xxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2203301610000.22465@xxxxxxxxxxxxxxxxx
---
arch/x86/pci/irq.c | 33 ++++++++++++++++++---------------
1 file changed, 18 insertions(+), 15 deletions(-)
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index bd32e4b..e5bc9f7 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -641,11 +641,12 @@ static int pirq_cyrix_set(struct pci_dev *router, struct pci_dev *dev, int pirq,
* bit 6-4 are probably unused, not like 5595
*/
-#define PIRQ_SIS_IRQ_MASK 0x0f
-#define PIRQ_SIS_IRQ_DISABLE 0x80
-#define PIRQ_SIS_USB_ENABLE 0x40
+#define PIRQ_SIS503_IRQ_MASK 0x0f
+#define PIRQ_SIS503_IRQ_DISABLE 0x80
+#define PIRQ_SIS503_USB_ENABLE 0x40
-static int pirq_sis_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
+static int pirq_sis503_get(struct pci_dev *router, struct pci_dev *dev,
+ int pirq)
{
u8 x;
int reg;
@@ -654,10 +655,11 @@ static int pirq_sis_get(struct pci_dev *router, struct pci_dev *dev, int pirq)
if (reg >= 0x01 && reg <= 0x04)
reg += 0x40;
pci_read_config_byte(router, reg, &x);
- return (x & PIRQ_SIS_IRQ_DISABLE) ? 0 : (x & PIRQ_SIS_IRQ_MASK);
+ return (x & PIRQ_SIS503_IRQ_DISABLE) ? 0 : (x & PIRQ_SIS503_IRQ_MASK);
}
-static int pirq_sis_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
+static int pirq_sis503_set(struct pci_dev *router, struct pci_dev *dev,
+ int pirq, int irq)
{
u8 x;
int reg;
@@ -666,8 +668,8 @@ static int pirq_sis_set(struct pci_dev *router, struct pci_dev *dev, int pirq, i
if (reg >= 0x01 && reg <= 0x04)
reg += 0x40;
pci_read_config_byte(router, reg, &x);
- x &= ~(PIRQ_SIS_IRQ_MASK | PIRQ_SIS_IRQ_DISABLE);
- x |= irq ? irq: PIRQ_SIS_IRQ_DISABLE;
+ x &= ~(PIRQ_SIS503_IRQ_MASK | PIRQ_SIS503_IRQ_DISABLE);
+ x |= irq ? irq : PIRQ_SIS503_IRQ_DISABLE;
pci_write_config_byte(router, reg, x);
return 1;
}
@@ -959,13 +961,14 @@ static __init int serverworks_router_probe(struct irq_router *r,
static __init int sis_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
{
- if (device != PCI_DEVICE_ID_SI_503)
- return 0;
-
- r->name = "SIS";
- r->get = pirq_sis_get;
- r->set = pirq_sis_set;
- return 1;
+ switch (device) {
+ case PCI_DEVICE_ID_SI_503:
+ r->name = "SiS85C503";
+ r->get = pirq_sis503_get;
+ r->set = pirq_sis503_set;
+ return 1;
+ }
+ return 0;
}
static __init int cyrix_router_probe(struct irq_router *r, struct pci_dev *router, u16 device)
|