i2c: designware: Avoid using static data
Drivers are not allowed to use static data since they may be used in SPL
where BSS is not available.
It is possible that driver model may provide support for numbering devices
in the future. But for now, move this to global_data.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/drivers/i2c/designware_i2c_pci.c b/drivers/i2c/designware_i2c_pci.c
index e8fc6f2..8d6bb37 100644
--- a/drivers/i2c/designware_i2c_pci.c
+++ b/drivers/i2c/designware_i2c_pci.c
@@ -34,7 +34,6 @@
static int designware_i2c_pci_bind(struct udevice *dev)
{
- static int num_cards;
char name[20];
/*
@@ -45,9 +44,13 @@
* using this driver is impossible for PCIe I2C devices.
* This can be removed, once a better (correct) way for this
* is found and implemented.
+ *
+ * TODO(sjg@chromium.org): Perhaps if uclasses had platdata this would
+ * be possible. We cannot use static data in drivers since they may be
+ * used in SPL or before relocation.
*/
- dev->req_seq = num_cards;
- sprintf(name, "i2c_designware#%u", num_cards++);
+ dev->req_seq = gd->arch.dw_i2c_num_cards++;
+ sprintf(name, "i2c_designware#%u", dev->req_seq);
device_set_name(dev, name);
return 0;