linux-kernel - [PATCH 05/21] drm/imagination: Use more specific compatible strings

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Message-ID: <20241105-sets-bxs-4-64-patch-v1-v1-5-4ed30e865892@imgtec.com>
Date: Tue, 5 Nov 2024 15:58:11 +0000
From: Matt Coster <matt.coster@...tec.com>
To: Frank Binns <frank.binns@...tec.com>,
        Matt Coster
	<matt.coster@...tec.com>,
        David Airlie <airlied@...il.com>, Simona Vetter
	<simona@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Nishanth Menon <nm@...com>,
        "Vignesh
 Raghavendra" <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>
CC: <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        Randolph Sapp <rs@...com>, Darren Etheridge <detheridge@...com>
Subject: [PATCH 05/21] drm/imagination: Use more specific compatible
 strings

Follow-on from the companion dt-bindings change ("dt-bindings: gpu: img:
More explicit compatible strings"), deprecating "img,img-axe" in favour of
the more specific "img,img-axe-1-16m".

Keep the previous compatible string around for backwards compatibility.

Signed-off-by: Matt Coster <matt.coster@...tec.com>
---
 drivers/gpu/drm/imagination/pvr_drv.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/imagination/pvr_drv.c b/drivers/gpu/drm/imagination/pvr_drv.c
index 684a9b9a2247b8f5b0f4a91ec984af2cff5a4c29..fbd8802abcf1271e260209957d95ea705dbe7f14 100644
--- a/drivers/gpu/drm/imagination/pvr_drv.c
+++ b/drivers/gpu/drm/imagination/pvr_drv.c
@@ -1471,6 +1471,16 @@ static void pvr_remove(struct platform_device *plat_dev)
 }
 
 static const struct of_device_id dt_match[] = {
+	{ .compatible = "img,img-rogue", .data = NULL },
+
+	/* All supported GPU models */
+	{ .compatible = "img,img-axe-1-16m", .data = NULL },
+
+	/*
+	 * This legacy compatible string was introduced early on before the more specific GPU
+	 * identifiers were used. Keep it around here for compatibility, but never use
+	 * "img,img-axe" in new devicetrees.
+	 */
 	{ .compatible = "img,img-axe", .data = NULL },
 	{}
 };

-- 
2.47.0