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 BE9AF421EEE; Wed, 4 Feb 2026 15:22:50 +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=1770218570; cv=none; b=MIWdrOWSxvYXGNBsOhMegUpF7UDstmkF9wlQixXJkt+LkGOpR/KnW+3g+K3uM9tzGJZwfDQCPJ+m3KI5rXFOqv+U6JuVLapcFkbXIxypN45GMD7vmlvvilN5ptJNj51ckCeTX6V92GvCOsnJykvZ04Oj0Itacg0Y+pfPPzTAvrA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770218570; c=relaxed/simple; bh=1E/iyiwvGxIXaU4Wa/Rst3aWXEL4++Yy4L/tCnfHBO8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=EWr6R+g8A9PEBAp4BksiwcqsbUI3eHBpUzyLxSDyspMuC6LCcwbAdxNZ+9rTIcLvFixsUU9CJKEV+V3zZRyM5GeWz9kxbCVJUb8QtyzguBqYXoOkZaELZNzB1GXJtzAdenD8WBj1Q5LIjTcP8Zd5RBErG6bgrIk3UisRonEFBzY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=bvK5stsl; 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="bvK5stsl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F0E54C4CEF7; Wed, 4 Feb 2026 15:22:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1770218570; bh=1E/iyiwvGxIXaU4Wa/Rst3aWXEL4++Yy4L/tCnfHBO8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bvK5stslZZptF6b40KneSzEdPSk6+vWApw/kPTX3WetyR/V8nI1QGC6QHFhIgcBKy cMRg9f6Xs28LAqhhbR92pOmimOE2DLRGTvj5ZITvLsnI0Zs+lULB+htEAbunHHkLQL 2UynDR0O2Sl/IMrK3CStSa3os48Bo2kAxCEDcZvk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Wen Chen , Fangzhi Zuo , Nicholas Kazlauskas , Harry Wentland , Alex Deucher , Wentao Guan Subject: [PATCH 6.6 69/72] drm/amd/display: use udelay rather than fsleep Date: Wed, 4 Feb 2026 15:41:12 +0100 Message-ID: <20260204143848.143146935@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260204143845.603454952@linuxfoundation.org> References: <20260204143845.603454952@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 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher commit 27e4dc2c0543fd1808cc52bd888ee1e0533c4a2e upstream. This function can be called from an atomic context so we can't use fsleep(). Fixes: 01f60348d8fb ("drm/amd/display: Fix 'failed to blank crtc!'") Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4549 Cc: Wen Chen Cc: Fangzhi Zuo Cc: Nicholas Kazlauskas Cc: Harry Wentland Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher [ Backport for file path changed ] Signed-off-by: Wentao Guan Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c @@ -781,7 +781,7 @@ enum dc_status dcn20_enable_stream_timin return DC_ERROR_UNEXPECTED; } - fsleep(stream->timing.v_total * (stream->timing.h_total * 10000u / stream->timing.pix_clk_100hz)); + udelay(stream->timing.v_total * (stream->timing.h_total * 10000u / stream->timing.pix_clk_100hz)); params.vertical_total_min = stream->adjust.v_total_min; params.vertical_total_max = stream->adjust.v_total_max;