1 files changed, 87 insertions, 26 deletions

diff --git a/drivers/gpu/drm/drm_panel_backlight_quirks.c b/drivers/gpu/drm/drm_panel_backlight_quirks.c
index 598f812b7cb3..537dc6dd0534 100644
--- a/drivers/gpu/drm/drm_panel_backlight_quirks.c
+++ b/drivers/gpu/drm/drm_panel_backlight_quirks.c
@@ -8,23 +8,26 @@
 #include <drm/drm_edid.h>
 #include <drm/drm_utils.h>
 
-struct drm_panel_min_backlight_quirk {
-	struct {
-		enum dmi_field field;
-		const char * const value;
-	} dmi_match;
+struct drm_panel_match {
+	enum dmi_field field;
+	const char * const value;
+};
+
+struct drm_get_panel_backlight_quirk {
+	struct drm_panel_match dmi_match;
+	struct drm_panel_match dmi_match_other;
 	struct drm_edid_ident ident;
-	u8 min_brightness;
+	struct drm_panel_backlight_quirk quirk;
 };
 
-static const struct drm_panel_min_backlight_quirk drm_panel_min_backlight_quirks[] = {
+static const struct drm_get_panel_backlight_quirk drm_panel_min_backlight_quirks[] = {
 	/* 13 inch matte panel */
 	{
 		.dmi_match.field = DMI_BOARD_VENDOR,
 		.dmi_match.value = "Framework",
 		.ident.panel_id = drm_edid_encode_panel_id('B', 'O', 'E', 0x0bca),
 		.ident.name = "NE135FBM-N41",
-		.min_brightness = 0,
+		.quirk = { .min_brightness = 1, },
 	},
 	/* 13 inch glossy panel */
 	{
@@ -32,7 +35,7 @@ static const struct drm_panel_min_backlight_quirk drm_panel_min_backlight_quirks
 		.dmi_match.value = "Framework",
 		.ident.panel_id = drm_edid_encode_panel_id('B', 'O', 'E', 0x095f),
 		.ident.name = "NE135FBM-N41",
-		.min_brightness = 0,
+		.quirk = { .min_brightness = 1, },
 	},
 	/* 13 inch 2.8k panel */
 	{
@@ -40,56 +43,114 @@ static const struct drm_panel_min_backlight_quirk drm_panel_min_backlight_quirks
 		.dmi_match.value = "Framework",
 		.ident.panel_id = drm_edid_encode_panel_id('B', 'O', 'E', 0x0cb4),
 		.ident.name = "NE135A1M-NY1",
-		.min_brightness = 0,
+		.quirk = { .min_brightness = 1, },
+	},
+	/* Steam Deck models */
+	{
+		.dmi_match.field = DMI_SYS_VENDOR,
+		.dmi_match.value = "Valve",
+		.dmi_match_other.field = DMI_PRODUCT_NAME,
+		.dmi_match_other.value = "Jupiter",
+		.quirk = { .min_brightness = 1, },
+	},
+	{
+		.dmi_match.field = DMI_SYS_VENDOR,
+		.dmi_match.value = "Valve",
+		.dmi_match_other.field = DMI_PRODUCT_NAME,
+		.dmi_match_other.value = "Galileo",
+		.quirk = { .min_brightness = 1, },
+	},
+	/* Have OLED Panels with brightness issue when last byte is 0/1 */
+	{
+		.dmi_match.field = DMI_SYS_VENDOR,
+		.dmi_match.value = "AYANEO",
+		.dmi_match_other.field = DMI_PRODUCT_NAME,
+		.dmi_match_other.value = "AYANEO 3",
+		.quirk = { .brightness_mask = 3, },
+	},
+	{
+		.dmi_match.field = DMI_SYS_VENDOR,
+		.dmi_match.value = "ZOTAC",
+		.dmi_match_other.field = DMI_BOARD_NAME,
+		.dmi_match_other.value = "G0A1W",
+		.quirk = { .brightness_mask = 3, },
+	},
+	{
+		.dmi_match.field = DMI_SYS_VENDOR,
+		.dmi_match.value = "ZOTAC",
+		.dmi_match_other.field = DMI_BOARD_NAME,
+		.dmi_match_other.value = "G1A1W",
+		.quirk = { .brightness_mask = 3, },
+	},
+	{
+		.dmi_match.field = DMI_SYS_VENDOR,
+		.dmi_match.value = "ONE-NETBOOK",
+		.dmi_match_other.field = DMI_PRODUCT_NAME,
+		.dmi_match_other.value = "ONEXPLAYER F1Pro",
+		.quirk = { .brightness_mask = 3, },
+	},
+	{
+		.dmi_match.field = DMI_SYS_VENDOR,
+		.dmi_match.value = "ONE-NETBOOK",
+		.dmi_match_other.field = DMI_PRODUCT_NAME,
+		.dmi_match_other.value = "ONEXPLAYER F1 EVA-02",
+		.quirk = { .brightness_mask = 3, },
 	},
 };
 
-static bool drm_panel_min_backlight_quirk_matches(const struct drm_panel_min_backlight_quirk *quirk,
-						  const struct drm_edid *edid)
+static bool drm_panel_min_backlight_quirk_matches(
+	const struct drm_get_panel_backlight_quirk *quirk,
+	const struct drm_edid *edid)
 {
-	if (!dmi_match(quirk->dmi_match.field, quirk->dmi_match.value))
+	if (quirk->dmi_match.field &&
+	    !dmi_match(quirk->dmi_match.field, quirk->dmi_match.value))
+		return false;
+
+	if (quirk->dmi_match_other.field &&
+	    !dmi_match(quirk->dmi_match_other.field,
+		       quirk->dmi_match_other.value))
 		return false;
 
-	if (!drm_edid_match(edid, &quirk->ident))
+	if (quirk->ident.panel_id && !drm_edid_match(edid, &quirk->ident))
 		return false;
 
 	return true;
 }
 
 /**
- * drm_get_panel_min_brightness_quirk - Get minimum supported brightness level for a panel.
+ * drm_get_panel_backlight_quirk - Get backlight quirks for a panel
  * @edid: EDID of the panel to check
  *
  * This function checks for platform specific (e.g. DMI based) quirks
  * providing info on the minimum backlight brightness for systems where this
- * cannot be probed correctly from the hard-/firm-ware.
+ * cannot be probed correctly from the hard-/firm-ware and other sources.
  *
  * Returns:
- * A negative error value or
- * an override value in the range [0, 255] representing 0-100% to be scaled to
- * the drivers target range.
+ * a drm_panel_backlight_quirk struct if a quirk was found, otherwise an
+ * error pointer.
  */
-int drm_get_panel_min_brightness_quirk(const struct drm_edid *edid)
+const struct drm_panel_backlight_quirk *
+drm_get_panel_backlight_quirk(const struct drm_edid *edid)
 {
-	const struct drm_panel_min_backlight_quirk *quirk;
+	const struct drm_get_panel_backlight_quirk *quirk;
 	size_t i;
 
 	if (!IS_ENABLED(CONFIG_DMI))
-		return -ENODATA;
+		return ERR_PTR(-ENODATA);
 
 	if (!edid)
-		return -EINVAL;
+		return ERR_PTR(-EINVAL);
 
 	for (i = 0; i < ARRAY_SIZE(drm_panel_min_backlight_quirks); i++) {
 		quirk = &drm_panel_min_backlight_quirks[i];
 
 		if (drm_panel_min_backlight_quirk_matches(quirk, edid))
-			return quirk->min_brightness;
+			return &quirk->quirk;
 	}
 
-	return -ENODATA;
+	return ERR_PTR(-ENODATA);
 }
-EXPORT_SYMBOL(drm_get_panel_min_brightness_quirk);
+EXPORT_SYMBOL(drm_get_panel_backlight_quirk);
 
 MODULE_DESCRIPTION("Quirks for panel backlight overrides");
 MODULE_LICENSE("GPL");