linux-kernel - [PATCH 4.4 14/58] drm/nouveau/kms: lvds panel strap moved again on maxwell

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Message-Id: <20170106213907.022682772@linuxfoundation.org>
Date:   Fri,  6 Jan 2017 22:43:59 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Ben Skeggs <bskeggs@...hat.com>
Subject: [PATCH 4.4 14/58] drm/nouveau/kms: lvds panel strap moved again on maxwell

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ben Skeggs <bskeggs@...hat.com>

commit 768e847759d551c96e129e194588dbfb11a1d576 upstream.

Signed-off-by: Ben Skeggs <bskeggs@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/nouveau/nouveau_bios.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -333,6 +333,9 @@ get_fp_strap(struct drm_device *dev, str
 	if (bios->major_version < 5 && bios->data[0x48] & 0x4)
 		return NVReadVgaCrtc5758(dev, 0, 0xf) & 0xf;
 
+	if (drm->device.info.family >= NV_DEVICE_INFO_V0_MAXWELL)
+		return nvif_rd32(device, 0x001800) & 0x0000000f;
+	else
 	if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
 		return (nvif_rd32(device, NV_PEXTDEV_BOOT_0) >> 24) & 0xf;
 	else