Fix PCMCIA card detection in 2.4 (in time for 2.4.25?)

Hi!

On 11th Aug 2003 I had reported yenya problems on Acer TravelMate 260 with 2.6.0test3, the bad news is that these problems also exist on 2.4 up to 2.4.25-test1, the good one is that Russell King had posted a fix on Oct 28 2003, similar subject than this message, that patch was for 2.6 and got into 2.6.0test10, so while this issue is solved in 2.6 kernels, it still exists in 2.4. Today I tried to aply Russell's patch to 2.4, I had to rewrite it, but otherwise it is exactly the same patch and it seems to work, at least in my machine.

Can people test this so that we can clean up any doubts Marcelo may have and it gets roled into 2.4.25?

Regards...

Manty/BestiaTester -> http://manty.net

--- old/drivers/pcmcia/yenta.c	2004-02-07 01:55:45.000000000 +0100
+++ new/drivers/pcmcia/yenta.c	2004-02-07 01:58:12.000000000 +0100
@@ -636,6 +636,7 @@
  */
 static void yenta_config_init(pci_socket_t *socket)
 {
+	u32 state;
 	u16 bridge;
 	struct pci_dev *dev = socket->dev;
 
@@ -675,6 +676,9 @@
 	exca_writeb(socket, I365_GENCTL, 0x00);
 
 	/* Redo card voltage interrogation */
+	state = cb_readl(socket, CB_SOCKET_STATE);
+	if (!(state & (CB_CDETECT1 | CB_CDETECT2 | CB_5VCARD |
+	CB_3VCARD | CB_XVCARD | CB_YVCARD)))
 	cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST);
 }

Hi Santiago,

A similar fix has been posted by Brad Campbell.

Applied his version (which had nicer identation), please test the BK tree.

Thanks.