openwrt/target/linux/bcm47xx/patches-5.15/940-bcm47xx-yenta.patch
Christian Marangi 3e9c471525
bcm47xx: 5.15: fix compilation warning for yenta socket patchi
Rework the patch to completely disable yenta_probe_irq function.
The generated mask is zero by lack due to the fact that probe_irq_mask
use a val never initialized. Correctly rework the ifdef to make the
function always return 0.

Fix compilation warning:
drivers/pcmcia/yenta_socket.c:926:13: error: unused variable 'i' [-Werror=unused-variable]
  926 |         int i;
      |             ^
drivers/pcmcia/yenta_socket.c:954:16: error: 'val' is used uninitialized [-Werror=uninitialized]
  954 |         mask = probe_irq_mask(val) & 0xffff;
      |                ^~~~~~~~~~~~~~~~~~~
drivers/pcmcia/yenta_socket.c:927:23: note: 'val' was declared here
  927 |         unsigned long val;
      |                       ^~~
cc1: all warnings being treated as errors

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-12 03:15:37 +02:00

49 lines
1.4 KiB
Diff

--- a/drivers/pcmcia/yenta_socket.c
+++ b/drivers/pcmcia/yenta_socket.c
@@ -923,6 +923,8 @@ static struct cardbus_type cardbus_type[
static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mask)
{
+/* WRT54G3G does not like this */
+#ifndef CONFIG_BCM47XX
int i;
unsigned long val;
u32 mask;
@@ -951,6 +953,9 @@ static unsigned int yenta_probe_irq(stru
mask = probe_irq_mask(val) & 0xffff;
return mask;
+#else
+ return 0;
+#endif
}
@@ -1031,6 +1036,10 @@ static void yenta_get_socket_capabilitie
else
socket->socket.irq_mask = 0;
+ /* irq mask probing is broken for the WRT54G3G */
+ if (socket->socket.irq_mask == 0)
+ socket->socket.irq_mask = 0x6f8;
+
dev_info(&socket->dev->dev, "ISA IRQ mask 0x%04x, PCI irq %d\n",
socket->socket.irq_mask, socket->cb_irq);
}
@@ -1262,6 +1271,15 @@ static int yenta_probe(struct pci_dev *d
dev_info(&dev->dev, "Socket status: %08x\n",
cb_readl(socket, CB_SOCKET_STATE));
+ /* Generate an interrupt on card insert/remove */
+ config_writew(socket, CB_SOCKET_MASK, CB_CSTSMASK | CB_CDMASK);
+
+ /* Set up Multifunction Routing Status Register */
+ config_writew(socket, 0x8C, 0x1000 /* MFUNC3 to GPIO3 */ | 0x2 /* MFUNC0 to INTA */);
+
+ /* Switch interrupts to parallelized */
+ config_writeb(socket, 0x92, 0x64);
+
yenta_fixup_parent_bridge(dev->subordinate);
/* Register it with the pcmcia layer.. */