diff options
| author | fred gao <fred.gao@intel.com> | 2019-01-09 09:21:14 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2019-01-10 11:38:04 +0800 |
| commit | 5807bb4d8dd640685313ad67218b2fe0770d1d03 (patch) | |
| tree | 6ef7bf15c6aa9b29b3ddca2124510ef38b191e0f /drivers/gpu/drm | |
| parent | 360f864e43aaf92f541838b181f21d82c624063a (diff) | |
| download | linux-5807bb4d8dd640685313ad67218b2fe0770d1d03.tar.bz2 | |
drm/i915/gvt: Refine port select logic for CFL platform
Refine the code since the port select definition for CFL is different
than SKL/BXT.
v2:
- replace PCH_CNP with IS_COFFEELAKE. (zhenyu)
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: fred gao <fred.gao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm')
| -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)) |