Add support for defining aliases for subplatform groups, such as HSW/BDW
ULT that covers both ULT and ULX.
ULT is a special case, because we slightly abuse the ULT subplatform
both as a subplatform and group, but with the way this is defined, it
should be fairly clear.
This follows i915 core and IS_HASWELL_ULT()/IS_BROADWELL_ULT()
conventions, i.e. "is ULT" also matches ULX platforms.
Note: Pedantically, this should have been done earlier, but it's only
feasible now that we no longer have a subplatform enum and can actually
initialize multiple subplatforms.
v2: Use the subplatform group idea
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display_device.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c
index 73d4c9ed5a10..cfd7d0fdf934 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.c
+++ b/drivers/gpu/drm/i915/display/intel_display_device.c
@@ -41,6 +41,13 @@ struct subplatform_desc {
.platforms._platform##_##_subplatform = 1, \
.name = #_subplatform
+/*
+ * Group subplatform alias that matches multiple subplatforms. For making ult
+ * cover both ult and ulx on HSW/BDW.
+ */
+#define SUBPLATFORM_GROUP(_platform, _subplatform) \
+ .platforms._platform##_##_subplatform = 1
+
struct platform_desc {
struct intel_display_platforms platforms;
const char *name;
@@ -510,12 +517,15 @@ static const u16 hsw_ulx_ids[] = {
static const struct platform_desc hsw_desc = {
PLATFORM(haswell),
.subplatforms = (const struct subplatform_desc[]) {
+ /* Special case: Use ult both as group and subplatform. */
{
SUBPLATFORM(haswell, ult),
+ SUBPLATFORM_GROUP(haswell, ult),
.pciidlist = hsw_ult_ids,
},
{
SUBPLATFORM(haswell, ulx),
+ SUBPLATFORM_GROUP(haswell, ult),
.pciidlist = hsw_ulx_ids,
},
{},
@@ -560,12 +570,15 @@ static const u16 bdw_ulx_ids[] = {
static const struct platform_desc bdw_desc = {
PLATFORM(broadwell),
.subplatforms = (const struct subplatform_desc[]) {
+ /* Special case: Use ult both as group and subplatform. */
{
SUBPLATFORM(broadwell, ult),
+ SUBPLATFORM_GROUP(broadwell, ult),
.pciidlist = bdw_ult_ids,
},
{
SUBPLATFORM(broadwell, ulx),
+ SUBPLATFORM_GROUP(broadwell, ult),
.pciidlist = bdw_ulx_ids,
},
{},
--
2.39.5
