diff options
| author | Colin Xu <colin.xu@intel.com> | 2018-06-11 15:39:37 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2018-06-13 10:57:29 +0800 |
| commit | 72bad9972876933b3c428fcee122bb1dcbf8cf5a (patch) | |
| tree | 1153971de1dd62984b569add81c566be9ee2d99d /drivers/gpu/drm/i915/gvt/edid.c | |
| parent | 47d9d3be5925688dfcc7407b0ae70013ba2dce2e (diff) | |
drm/i915/gvt: Enable virtual display support for BXT.
Virtual monitor on BXT start from port B.
Unlike SKL/KBL, digital display port connectivity is detected via
GEN8_DE_PORT_ISR so emulate monitor state change by setting it.
Signed-off-by: Colin Xu <colin.xu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/edid.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/edid.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gvt/edid.c b/drivers/gpu/drm/i915/gvt/edid.c index f61337632969..4b98539025c5 100644 --- a/drivers/gpu/drm/i915/gvt/edid.c +++ b/drivers/gpu/drm/i915/gvt/edid.c @@ -77,6 +77,20 @@ static unsigned char edid_get_byte(struct intel_vgpu *vgpu) return chr; } +static inline int bxt_get_port_from_gmbus0(u32 gmbus0) +{ + int port_select = gmbus0 & _GMBUS_PIN_SEL_MASK; + int port = -EINVAL; + + if (port_select == 1) + port = PORT_B; + else if (port_select == 2) + port = PORT_C; + else if (port_select == 3) + port = PORT_D; + return port; +} + static inline int get_port_from_gmbus0(u32 gmbus0) { int port_select = gmbus0 & _GMBUS_PIN_SEL_MASK; @@ -105,6 +119,7 @@ static void reset_gmbus_controller(struct intel_vgpu *vgpu) static int gmbus0_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, void *p_data, unsigned int bytes) { + struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; int port, pin_select; memcpy(&vgpu_vreg(vgpu, offset), p_data, bytes); @@ -116,7 +131,10 @@ static int gmbus0_mmio_write(struct intel_vgpu *vgpu, if (pin_select == 0) return 0; - port = get_port_from_gmbus0(pin_select); + if (IS_BROXTON(dev_priv)) + port = bxt_get_port_from_gmbus0(pin_select); + else + port = get_port_from_gmbus0(pin_select); if (WARN_ON(port < 0)) return 0; |