fsi: Add regmap and refactor sbefifo

Merge series from Eddie James <eajames@linux.ibm.com>:

The SBEFIFO hardware can now be attached over a new I2C endpoint interface
called the I2C Responder (I2CR). In order to use the existing SBEFIFO
driver, add a regmap driver for the FSI bus and an endpoint driver for the
I2CR. Then, refactor the SBEFIFO and OCC drivers to clean up and use the
new regmap driver or the I2CR interface.

This branch just has the regmap change so it can be shared with the FSI
code.

1 files changed, 7 insertions, 43 deletions

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
index dfd3be49eac8..e6854f7270a6 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
@@ -1369,7 +1369,7 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
 {
 	struct amdgpu_device *adev = drm_to_adev(plane->dev);
 	const struct drm_format_info *info = drm_format_info(format);
-	struct hw_asic_id asic_id = adev->dm.dc->ctx->asic_id;
+	int i;
 
 	enum dm_micro_swizzle microtile = modifier_gfx9_swizzle_mode(modifier) & 3;
 
@@ -1386,49 +1386,13 @@ static bool dm_plane_format_mod_supported(struct drm_plane *plane,
 		return true;
 	}
 
-	/* check if swizzle mode is supported by this version of DCN */
-	switch (asic_id.chip_family) {
-	case FAMILY_SI:
-	case FAMILY_CI:
-	case FAMILY_KV:
-	case FAMILY_CZ:
-	case FAMILY_VI:
-		/* asics before AI does not have modifier support */
-		return false;
-	case FAMILY_AI:
-	case FAMILY_RV:
-	case FAMILY_NV:
-	case FAMILY_VGH:
-	case FAMILY_YELLOW_CARP:
-	case AMDGPU_FAMILY_GC_10_3_6:
-	case AMDGPU_FAMILY_GC_10_3_7:
-		switch (AMD_FMT_MOD_GET(TILE, modifier)) {
-		case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D:
-			return true;
-		default:
-			return false;
-		}
-		break;
-	case AMDGPU_FAMILY_GC_11_0_0:
-	case AMDGPU_FAMILY_GC_11_0_1:
-		switch (AMD_FMT_MOD_GET(TILE, modifier)) {
-		case AMD_FMT_MOD_TILE_GFX11_256K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_R_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_S_X:
-		case AMD_FMT_MOD_TILE_GFX9_64K_D:
-			return true;
-		default:
-			return false;
-		}
-		break;
-	default:
-		ASSERT(0); /* Unknown asic */
-		break;
+	/* Check that the modifier is on the list of the plane's supported modifiers. */
+	for (i = 0; i < plane->modifier_count; i++) {
+		if (modifier == plane->modifiers[i])
+			break;
 	}
+	if (i == plane->modifier_count)
+		return false;
 
 	/*
 	 * For D swizzle the canonical modifier depends on the bpp, so check