From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8D92922332E; Wed, 4 Feb 2026 15:15:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770218115; cv=none; b=g34MJEs+tQqppc+YoHHLFfn2ay2vD4Omjh/BrBH0IT4SXl1+1KQftXcUvuOx7wKeM6QAg11do9B6raAKvwY49lxKEDGNGE5UX6WQDwchIKicr+UfkTyYxIM866GFn5+Qa9P7qiTpYzsZKhKo+itJsSL9A2wjSE2Eu35G0iY73Bw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770218115; c=relaxed/simple; bh=+bBMKIGZZuWgvb8B1s8nhoGNJmiRilHJ2eadZIKdkK8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Kg++bt/fk5tPo/+feApD3lMVeWFQ5EIZzlRi9AiCuddsvWttx2RkXBy/UdS81bHQk6M8VO+Y59aaq+hi2cOElPA1QCjlsu91av6QRhEMJ5LPBT8THuWY7YIm57DTANg7iajn8fc2tshw+4HxcY2KcQ2Skd5ubEObnfYK8cHXNxg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=YUz4QHzE; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="YUz4QHzE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id ACE56C4CEF7; Wed, 4 Feb 2026 15:15:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1770218115; bh=+bBMKIGZZuWgvb8B1s8nhoGNJmiRilHJ2eadZIKdkK8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YUz4QHzEQvzS0ybp/U7ZHTOsK/TKDPwECZqR+tw5+zYXUNEk6i/sXEFpKhjC4zVvm Q2GkJP3nq/7XKLF3tokK7lIa6h0EJkmX/ctqjUdSj7mQ3tCuLmY8v7TUG/ea4VqcsF 2WKnNQWrAP5gaffHSh3np+XMtdgLh8XXKjdLWaiw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jesse Zhang , Alex Deucher Subject: [PATCH 6.1 216/280] drm/amdgpu/soc21: fix xclk for APUs Date: Wed, 4 Feb 2026 15:39:50 +0100 Message-ID: <20260204143917.381877038@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260204143909.614719725@linuxfoundation.org> References: <20260204143909.614719725@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher commit e7fbff9e7622a00c2b53cb14df481916f0019742 upstream. The reference clock is supposed to be 100Mhz, but it appears to actually be slightly lower (99.81Mhz). Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/14451 Reviewed-by: Jesse Zhang Signed-off-by: Alex Deucher (cherry picked from commit 637fee3954d4bd509ea9d95ad1780fc174489860) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/soc21.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/amd/amdgpu/soc21.c +++ b/drivers/gpu/drm/amd/amdgpu/soc21.c @@ -202,7 +202,13 @@ static u32 soc21_get_config_memsize(stru static u32 soc21_get_xclk(struct amdgpu_device *adev) { - return adev->clock.spll.reference_freq; + u32 reference_clock = adev->clock.spll.reference_freq; + + /* reference clock is actually 99.81 Mhz rather than 100 Mhz */ + if ((adev->flags & AMD_IS_APU) && reference_clock == 10000) + return 9981; + + return reference_clock; }