AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-03-09 06:24:43 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

drm/i915/gvt: Refine port select logic for CFL platform

Browse Source 
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>
This commit is contained in:
fred gao 2019-01-09 09:21:14 +08:00 committed by Zhenyu Wang
parent 360f864e43
commit 5807bb4d8d
1 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/gpu/drm/i915/gvt/edid.c
View File

@ -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))