diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/edid.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/edid.c b/drivers/gpu/drm/i915/gvt/edid.c index 752aa0fd1cc9..1fe6124918f1 100644 --- a/drivers/gpu/drm/i915/gvt/edid.c +++ b/drivers/gpu/drm/i915/gvt/edid.c @@ -77,6 +77,22 @@ static unsigned char edid_get_byte(struct intel_vgpu *vgpu) return chr; } +static inline int cnp_get_port_from_gmbus0(u32 gmbus0) +{ + int port_select = gmbus0 & _GMBUS_PIN_SEL_MASK; + int port = -EINVAL; + + if (port_select == GMBUS_PIN_1_BXT) + port = PORT_B; + else if (port_select == GMBUS_PIN_2_BXT) + port = PORT_C; + else if (port_select == GMBUS_PIN_3_BXT) + port = PORT_D; + else if (port_select == GMBUS_PIN_4_CNP) + port = PORT_E; + return port; +} + static inline int bxt_get_port_from_gmbus0(u32 gmbus0) { int port_select = gmbus0 & _GMBUS_PIN_SEL_MASK; @@ -133,6 +149,8 @@ static int gmbus0_mmio_write(struct intel_vgpu *vgpu, if (IS_BROXTON(dev_priv)) port = bxt_get_port_from_gmbus0(pin_select); + else if (IS_COFFEELAKE(dev_priv)) + port = cnp_get_port_from_gmbus0(pin_select); else port = get_port_from_gmbus0(pin_select); if (WARN_ON(port < 0)) |