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[93.140.187.240]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48730628efasm109519825e9.5.2026.03.28.13.43.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 Mar 2026 13:43:20 -0700 (PDT) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Sat, 28 Mar 2026 21:42:16 +0100 Subject: [PATCH] backlight: ktd2801: enable BL_CORE_SUSPENDRESUME Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260328-ktd2801-pm-fix-v1-1-007cb103faeb@dujemihanovic.xyz> X-B4-Tracking: v=1; b=H4sIAAAAAAAC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIzMDY0MT3eySFCMLA0PdglzdtMwKXUPzVAtzQ9M0i2RjcyWgpoKiVKAw2MD o2NpaAFlB42dgAAAA X-Change-ID: 20260314-ktd2801-pm-fix-17e8715f8c37 To: Lee Jones , Daniel Thompson , Jingoo Han , Helge Deller Cc: Karel Balej , dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, phone-devel@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, linux-kernel@vger.kernel.org, =?utf-8?q?Duje_Mihanovi=C4=87?= , stable@vger.kernel.org X-Mailer: b4 0.15.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1056; i=duje@dujemihanovic.xyz; s=20260328; h=from:subject:message-id; bh=ZxchMbxwniYIWnT9R7/2Td04/zp5hTI04KiKc8j4Q4g=; b=owGbwMvMwCW2z0j3+uHIyKOMp9WSGDJP2KbHtWVJlUzc/WPZVv0I27N23+16d3Wnzf39bl7+j oXvMxyyO0pZGMS4GGTFFFmYl8pd4ksNn+hQZJsEM4eVCWQIAxenAEzkQATDX5FW8dMPdCXrznXM nLJB0ap+xqH2987aWyZUy7s4d+8MS2dkmPQxZZOGwjfGGCXuy282TzVXupY8dWbx9jULg9O4epL nMAEA X-Developer-Key: i=duje@dujemihanovic.xyz; a=openpgp; fpr=9BD463017690089DAA8DC266275F544B3B1B4792 From: Duje Mihanovi=C4=87 Boards using this backlight chip do not power the backlight off on suspend. Enable BL_CORE_SUSPENDRESUME so the chip gets powered off by the backlight core on suspend. Tested on samsung,coreprimevelte. Cc: stable@vger.kernel.org # v6.19 Signed-off-by: Duje Mihanovi=C4=87 --- drivers/video/backlight/ktd2801-backlight.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/video/backlight/ktd2801-backlight.c b/drivers/video/ba= cklight/ktd2801-backlight.c index 17eac1b3bce4..1b1307e03b20 100644 --- a/drivers/video/backlight/ktd2801-backlight.c +++ b/drivers/video/backlight/ktd2801-backlight.c @@ -53,6 +53,7 @@ static int ktd2801_update_status(struct backlight_device = *bd) } =20 static const struct backlight_ops ktd2801_backlight_ops =3D { + .options =3D BL_CORE_SUSPENDRESUME, .update_status =3D ktd2801_update_status, }; =20 --- base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f change-id: 20260314-ktd2801-pm-fix-17e8715f8c37 Best regards, -- =20 Duje Mihanovi=C4=87