[PATCH v4 09/15] drm/i915/display: add platform group for g4x

[Jani Nikula]

Add support for defining aliases for platform groups, such as g4x that
covers both g45 and gm45.

Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display_device.c | 9 +++++++++
 drivers/gpu/drm/i915/display/intel_display_device.h | 1 +
 2 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c 
b/drivers/gpu/drm/i915/display/intel_display_device.c
index e9d56f8aa3ab..50ffb31662b1 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.c
+++ b/drivers/gpu/drm/i915/display/intel_display_device.c
@@ -53,6 +53,13 @@ struct platform_desc {
        .platforms._platform = 1,                \
        .name = #_platform
 
+/*
+ * Group platform alias that matches multiple platforms. For aliases such as 
g4x
+ * that covers both g45 and gm45.
+ */
+#define PLATFORM_GROUP(_platform)              \
+       .platforms._platform = 1
+
 #define ID(id) (id)
 
 static const struct intel_display_device_info no_display = {};
@@ -387,6 +394,7 @@ static const struct platform_desc i965gm_desc = {
 
 static const struct platform_desc g45_desc = {
        PLATFORM(g45),
+       PLATFORM_GROUP(g4x),
        .info = &(const struct intel_display_device_info) {
                GEN4_DISPLAY,
 
@@ -396,6 +404,7 @@ static const struct platform_desc g45_desc = {
 
 static const struct platform_desc gm45_desc = {
        PLATFORM(gm45),
+       PLATFORM_GROUP(g4x),
        .info = &(const struct intel_display_device_info) {
                GEN4_DISPLAY,
                .supports_tv = 1,
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h 
b/drivers/gpu/drm/i915/display/intel_display_device.h
index b240c28db2cb..745d03f49acf 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.h
+++ b/drivers/gpu/drm/i915/display/intel_display_device.h
@@ -38,6 +38,7 @@ struct drm_printer;
        func(i965gm) \
        func(g45) \
        func(gm45) \
+       func(g4x) /* group alias for g45 and gm45 */ \
        /* Display ver 5 */ \
        func(ironlake) \
        /* Display ver 6 */ \
-- 
2.39.5