HPD pins are reversed
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=29387
Signed-off-by: Alex Deucher <alexdeuc...@gmail.com>
Cc: sta...@kernel.org
---
drivers/gpu/drm/radeon/radeon_atombios.c | 14 ++++++++++++--
1 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c
b/drivers/gpu/drm/radeon/radeon_atombios.c
index 73e6e77..2b9a516 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -206,6 +206,7 @@ static bool radeon_atom_apply_quirks(struct drm_device *dev,
uint16_t *line_mux,
struct radeon_hpd *hpd)
{
+ struct radeon_device *rdev = dev->dev_private;
/* Asus M2A-VM HDMI board lists the DVI port as HDMI */
if ((dev->pdev->device == 0x791e) &&
@@ -308,13 +309,22 @@ static bool radeon_atom_apply_quirks(struct drm_device
*dev,
}
}
- /* Acer laptop reports DVI-D as DVI-I */
+ /* Acer laptop reports DVI-D as DVI-I and hpd pins reversed */
if ((dev->pdev->device == 0x95c4) &&
(dev->pdev->subsystem_vendor == 0x1025) &&
(dev->pdev->subsystem_device == 0x013c)) {
+ struct radeon_gpio_rec gpio;
+
if ((*connector_type == DRM_MODE_CONNECTOR_DVII) &&
- (supported_device == ATOM_DEVICE_DFP1_SUPPORT))
+ (supported_device == ATOM_DEVICE_DFP1_SUPPORT)) {
+ gpio = radeon_lookup_gpio(rdev, 6);
+ *hpd = radeon_atom_get_hpd_info_from_gpio(rdev, &gpio);
*connector_type = DRM_MODE_CONNECTOR_DVID;
+ } else if ((*connector_type == DRM_MODE_CONNECTOR_HDMIA) &&
+ (supported_device == ATOM_DEVICE_DFP1_SUPPORT)) {
+ gpio = radeon_lookup_gpio(rdev, 7);
+ *hpd = radeon_atom_get_hpd_info_from_gpio(rdev, &gpio);
+ }
}
/* XFX Pine Group device rv730 reports no VGA DDC lines
--
1.7.1.1
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