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Commit 20d66daf authored by Francisco Jerez's avatar Francisco Jerez Committed by Ben Skeggs
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drm/nouveau: Workaround missing GPIO tables on an Apple iMac G4 NV18. 



This should fix the reported TV-out load detection false positives
(fdo bug 29455).

Reported-by: default avatarVlado Plaga <rechner@vlado-do.de>
Signed-off-by: default avatarFrancisco Jerez <currojerez@riseup.net>
Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 19bf5f7d

drivers/gpu/drm/nouveau/nouveau_bios.c

+16 −0
Original line number Diff line number Diff line
@@ -5807,6 +5807,22 @@ parse_dcb_gpio_table(struct nvbios *bios) 
			gpio->line = tvdac_gpio[1] >> 4;

			gpio->invert = tvdac_gpio[0] & 2;

		}

	} else {

		/*

		 * No systematic way to store GPIO info on pre-v2.2

		 * DCBs, try to match the PCI device IDs.

		 */



		/* Apple iMac G4 NV18 */

		if (dev->pdev->device == 0x0189 &&

		    dev->pdev->subsystem_vendor == 0x10de &&

		    dev->pdev->subsystem_device == 0x0010) {

			struct dcb_gpio_entry *gpio = new_gpio_entry(bios);



			gpio->tag = DCB_GPIO_TVDAC0;

			gpio->line = 4;

		}



	}



	if (!gpio_table_ptr)