linux-kernel - [PATCH v6 3/5] drm/edid: Match edid quirks with identity

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Message-ID: <20240307230653.1807557-4-hsinyi@chromium.org>
Date: Thu,  7 Mar 2024 14:57:43 -0800
From: Hsin-Yi Wang <hsinyi@...omium.org>
To: Jani Nikula <jani.nikula@...ux.intel.com>,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	Douglas Anderson <dianders@...omium.org>
Cc: Neil Armstrong <neil.armstrong@...aro.org>,
	Jessica Zhang <quic_jesszhan@...cinc.com>,
	Sam Ravnborg <sam@...nborg.org>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Daniel Vetter <daniel@...ll.ch>,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v6 3/5] drm/edid: Match edid quirks with identity

Currently edid quirks are matched by panel id only.

Modify it to match with identity so it's easier to be extended
for more complex matching if required.

Signed-off-by: Hsin-Yi Wang <hsinyi@...omium.org>
Reviewed-by: Jani Nikula <jani.nikula@...el.com>
Reviewed-by: Douglas Anderson <dianders@...omium.org>
---
 drivers/gpu/drm/drm_edid.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 58fe35058181..4abc50516cda 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -112,13 +112,15 @@ struct drm_edid_match_closure {
 
 #define EDID_QUIRK(vend_chr_0, vend_chr_1, vend_chr_2, product_id, _quirks) \
 { \
-	.panel_id = drm_edid_encode_panel_id(vend_chr_0, vend_chr_1, vend_chr_2, \
-					     product_id), \
+	.ident = { \
+		.panel_id = drm_edid_encode_panel_id(vend_chr_0, vend_chr_1, \
+						     vend_chr_2, product_id), \
+	}, \
 	.quirks = _quirks \
 }
 
 static const struct edid_quirk {
-	u32 panel_id;
+	const struct drm_edid_ident ident;
 	u32 quirks;
 } edid_quirk_list[] = {
 	/* Acer AL1706 */
@@ -2883,16 +2885,17 @@ EXPORT_SYMBOL(drm_edid_duplicate);
  * @drm_edid: EDID to process
  *
  * This tells subsequent routines what fixes they need to apply.
+ *
+ * Return: A u32 represents the quirks to apply.
  */
 static u32 edid_get_quirks(const struct drm_edid *drm_edid)
 {
-	u32 panel_id = drm_edid_get_panel_id(drm_edid);
 	const struct edid_quirk *quirk;
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
 		quirk = &edid_quirk_list[i];
-		if (quirk->panel_id == panel_id)
+		if (drm_edid_match(drm_edid, &quirk->ident))
 			return quirk->quirks;
 	}
 
-- 
2.44.0.278.ge034bb2e1d-goog