[PATCH v2 2/2] i2c-designware-pci: Index Haswell ULT bus names from 0

From: Benson Leung
Date: Mon Oct 21 2013 - 11:06:10 EST


Rather than having the bus names be "i2c-designware-pci--1" because
we have set the .bus_num to -1 to force dynamic allocation, lets have
the busses named "i2c-designware-pci-0" and "i2c-designware-pci-1"
to correspond to the correct names of these busses.

The adapter number will still be dynamically assigned.

Signed-off-by: Benson Leung <bleung@xxxxxxxxxxxx>
---
v2: Fixed warning.
v1: Initial
---
drivers/i2c/busses/i2c-designware-pcidrv.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index 816cbd1..0c6771d 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -229,7 +229,7 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
{
struct dw_i2c_dev *dev;
struct i2c_adapter *adap;
- int r;
+ int r, adapter_num;
struct dw_pci_controller *controller;

if (id->driver_data >= ARRAY_SIZE(dw_pci_controllers)) {
@@ -287,8 +287,18 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
adap->algo = &i2c_dw_algo;
adap->dev.parent = &pdev->dev;
adap->nr = controller->bus_num;
+
+ switch (id->driver_data) {
+ case haswell_0:
+ case haswell_1:
+ adapter_num = id->driver_data - haswell_0;
+ break;
+ default:
+ adapter_num = adap->nr;
+ break;
+ }
snprintf(adap->name, sizeof(adap->name), "i2c-designware-pci-%d",
- adap->nr);
+ adapter_num);

r = devm_request_irq(&pdev->dev, pdev->irq, i2c_dw_isr, IRQF_SHARED,
adap->name, dev);
--
1.8.3.2

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