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Commit e7c310c3 authored by Niels de Vos's avatar Niels de Vos Committed by Linus Torvalds
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parport_pc: it887x fix 



The IO port range requested by parport_pc.c:sio_ite_8872_probe is too small.
The IO-ports of ttyS1 (0x2f8) will be missconfigured by the ITE-chip.  The ITE
starts looking for the chip a 0x2a0.  An IO-portrange of 32 will not overwrite
the ports of ttyS1.  Therefore register 0x60 should be written with
0xe5000000, enabling the ITE and setting IO-portsize to 32 bytes.

Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent f84d5a76

drivers/parport/parport_pc.c

+2 −3
Original line number Diff line number Diff line
@@ -2424,7 +2424,6 @@ static int __devinit sio_ite_8872_probe (struct pci_dev *pdev, int autoirq, 
	u32 ite8872set;

	u32 ite8872_lpt, ite8872_lpthi;

	u8 ite8872_irq, type;

	char *fake_name = "parport probe";

	int irq;

	int i;
@@ -2432,11 +2431,11 @@ static int __devinit sio_ite_8872_probe (struct pci_dev *pdev, int autoirq, 
	

	// make sure which one chip

	for(i = 0; i < 5; i++) {

		base_res = request_region(inta_addr[i], 0x8, fake_name);

		base_res = request_region(inta_addr[i], 32, "it887x");

		if (base_res) {

			int test;

			pci_write_config_dword (pdev, 0x60,

						0xe7000000 | inta_addr[i]);

						0xe5000000 | inta_addr[i]);

			pci_write_config_dword (pdev, 0x78,

						0x00000000 | inta_addr[i]);

			test = inb (inta_addr[i]);