From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 16E85CD5BA2 for ; Tue, 19 May 2026 07:27:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 919A510EACC; Tue, 19 May 2026 07:27:26 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="mLDORVs+"; dkim-atps=neutral Received: from mail-wm1-f48.google.com (mail-wm1-f48.google.com [209.85.128.48]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6BEBA10E355 for ; Mon, 18 May 2026 21:20:47 +0000 (UTC) Received: by mail-wm1-f48.google.com with SMTP id 5b1f17b1804b1-488b0046078so25549765e9.1 for ; Mon, 18 May 2026 14:20:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1779139246; x=1779744046; darn=lists.freedesktop.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=l6HkySrOlOOhWVUzrMl8CbH2neWfwcax3uYwxu0Tdaw=; b=mLDORVs+M4R7b3h0oXE8Om3c1LNU+ruxI2zP00eEG8L4phElBxwaER1wJEzf7ekSSK KISqzL7eBxOecexi1h2ZtqCWf4kbhKPNqR0MYpi1Ck+XFVYp2zb2v5421Rrk0nChcZLd VBgjwN/k2spMkHlXSAPQyYWOJoEVBptW+sxUTaQFSUomzgxU3XUw3yHLwZheeapTNvAO cjoKjTNonMA2k4HK4UonUZUnzbHhPYQR0lT/ABgEfkt9rRaFrNHRSMZJnKnmp66j+CE/ VAlvOapVqrjG0aVB5QxLnsxSWTWmV0WfjRJFw74Hobpn7MJWHoL++8AtDXaOueoa3le7 Gu1Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779139246; x=1779744046; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=l6HkySrOlOOhWVUzrMl8CbH2neWfwcax3uYwxu0Tdaw=; b=qq2tQraX8vwqg+DE2KgkkO/3xxe4/M9SyfXSCDCDIhfcPbd1m4xEytjqw50m8vMgER f+Nil5xmLl4WlQ7rsXw4v6QEXXTFHghf0pXP2uOPe0zxepGdpY3ALUmJhPv4u1tdrP2/ qVRaqlsj+Wt2HyneL5LfGfgjWjqRmQHsy5sE2OL5Ufbon3fnuFnmc3Ftv3SM8ejtcFwF ecctJ3ue+EWKJfgnHmDF/UeMwGJCewTJy/3h947gFA5tMqdfw9u+IrleAoqWgi+LH/Kl vYiaeV5I2yUe6+lKTFqK1pMwFiPEJo6yBWRGS55O8HD5sF1FRHErg8tE6LK5DsTDs5tY 9pdg== X-Gm-Message-State: AOJu0YwqsnUh5bKfKwpdrZpqb090a1e6K68V/RrU4oKAXaaeb1yukJOK GfzPk0v9wXjMctaeyexBPhAmX/EYQikIMWO+z2aLN/AQJy/xy2sU+dC7 X-Gm-Gg: Acq92OHqRwtcE60OOyPkufJ/8jblxupMIUCV31ETyDTyU+bKD5Sovwxwb9YE90U/q3Z ZBUaBPBBtBnR9O8sJMqcZXv5wsAnf82Y8FHn+IdqtbWcCl26PhfF7oOqO0WC2YNS4gCBQ+GVn0n tPtA0VnNeWSlx0X8XehWGCLW0VXS6BvEQVrmOyFlKQXr75FUJDbegM0QP3aJwjlT1Bfqc3wK5pq ZFNzx00x9ozjFjwpAjznIQO32XJu4cTwvvB2m9WM6HdlM8xKkCgSTpXnvJlN0IjLY0sx3jIqMJJ iWioy+Y2W2qQeJjVHbbhKnPKvvLObZ88zhQkPWmNjnvIFLWgOJ5Qxc+axh7cP+o0XVG4uWLKKZ8 P7S8vGTYtGJUW38oHNs3y02ZsaalZy5rvhxww3oaIltrhWVipf9AT48Dv0BcBvKeoWWC7AozLRW vFT9hmEeNm35o1A6upJev4SFiSKnzul+m9HMWmGQ== X-Received: by 2002:a05:600c:c10b:b0:489:1c2d:211e with SMTP id 5b1f17b1804b1-48fe5fcdedemr201288435e9.5.1779139245648; Mon, 18 May 2026 14:20:45 -0700 (PDT) Received: from skylab.fritz.box ([2a06:4944:10fb:f400:564:5711:52c6:59ff]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-45d9ed2ffdfsm37133980f8f.15.2026.05.18.14.20.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 May 2026 14:20:45 -0700 (PDT) From: Gilles Risch To: alexander.deucher@amd.com Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, lkp@intel.com, Gilles Risch Subject: [PATCH v3 2/2] drm/radeon: fix eDP resume from suspend on iMac11, 1 / DCE3.1 systems Date: Mon, 18 May 2026 23:14:13 +0200 Message-ID: <20260518211409.4868-7-gilles.risch@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Mailman-Approved-At: Tue, 19 May 2026 07:27:26 +0000 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" After suspend/resume the internal eDP display on Apple iMac11,1, stays dark because atombios_set_edp_panel_power() skips panel power control for anything older than DCE4, and ATOM_ENCODER_CMD_DP_VIDEO_ON/OFF is required on ths iMac. Tested on iMac11,1 (Mobility Radeon HD 4850, RV770/DCE3.1). Signed-off-by: Gilles Risch --- drivers/gpu/drm/radeon/atombios_encoders.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index 4e984973c043..0a699a887ee9 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -1384,7 +1384,8 @@ atombios_set_edp_panel_power(struct drm_connector *connector, int action) goto done; if (!ASIC_IS_DCE4(rdev)) - goto done; + if (!dmi_match(DMI_PRODUCT_NAME, "iMac11,1")) + goto done; if ((action != ATOM_TRANSMITTER_ACTION_POWER_ON) && (action != ATOM_TRANSMITTER_ACTION_POWER_OFF)) @@ -1707,7 +1708,7 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode) if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) { /* DP_SET_POWER_D0 is set in radeon_dp_link_train */ radeon_dp_link_train(encoder, connector); - if (ASIC_IS_DCE4(rdev)) + if (ASIC_IS_DCE4(rdev) || dmi_match(DMI_PRODUCT_NAME, "iMac11,1")) atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_VIDEO_ON, 0); } if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) { @@ -1724,7 +1725,7 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode) case DRM_MODE_DPMS_SUSPEND: case DRM_MODE_DPMS_OFF: - if (ASIC_IS_DCE4(rdev)) { + if (ASIC_IS_DCE4(rdev) || dmi_match(DMI_PRODUCT_NAME, "iMac11,1")) { if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_VIDEO_OFF, 0); } -- 2.47.3