* John David Anglin <dave.anglin@xxxxxxxx>:
> On 2017-12-11 9:46 AM, Helge Deller wrote:
> > Strange. The attached patch does work for me on panama up until boot.
> > Haven't tested what lspci reports afterwards...
> Yes, it also works for me applied to v4.13.16. ttyS1 is now ttyS0.
Good.
> Haven't tried boot without console argument yet.
> lspci still sees the hidden devices which I think is good.
Agreed.
> I removed period from one of the dev_info strings. We probably don't need
> printk's that I added.
Yes, I dropped them.
Here is an updated patch for patchwork:
_________
Hide serial AUX and ATI functions on Diva GSP card
Signed-off-by: Helge Deller <deller@xxxxxx>
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index a25fed52f7e9..55fb30057d5e 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -1692,3 +1692,37 @@ void lba_set_iregs(struct parisc_device *lba, u32 ibase, u32 imask)
iounmap(base_addr);
}
+
+/*
+ * The design of the Diva management card in rp34x0 machines (rp3410, rp3440)
+ * seems rushed, so that many built-in components simply don't work.
+ * The following quirks disable the serial AUX port and the built-in ATI RV100
+ * Radeon 7000 graphics card which both don't have any external connectors and
+ * thus are useless, and even worse, e.g. the AUX port occupies ttyS0 and as
+ * such makes those machines the only PARISC machines on which we can't use
+ * ttyS0 as boot console.
+ */
+static void quirk_diva_ati_card(struct pci_dev *dev)
+{
+ if (dev->subsystem_vendor != PCI_VENDOR_ID_HP ||
+ dev->subsystem_device != 0x1292)
+ return;
+
+ dev_info(&dev->dev, "Hiding Diva built-in ATI card");
+ dev->device = 0;
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RADEON_QY,
+ quirk_diva_ati_card);
+
+static void quirk_diva_aux_disable(struct pci_dev *dev)
+{
+ if (dev->subsystem_vendor != PCI_VENDOR_ID_HP ||
+ dev->subsystem_device != 0x1291)
+ return;
+
+ dev_info(&dev->dev, "Hiding Diva built-in AUX serial device");
+ dev->device = 0;
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_DIVA_AUX,
+ quirk_diva_aux_disable);
+
--
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