From patchwork Tue Jun 19 19:14:55 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 165820 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 66908B7025 for ; Wed, 20 Jun 2012 05:15:50 +1000 (EST) Received: from localhost ([::1]:40083 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Sh3u0-0001XK-24 for incoming@patchwork.ozlabs.org; Tue, 19 Jun 2012 15:15:48 -0400 Received: from eggs.gnu.org ([208.118.235.92]:55468) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Sh3tj-0001NM-HB for qemu-devel@nongnu.org; Tue, 19 Jun 2012 15:15:32 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Sh3th-0004a8-Hp for qemu-devel@nongnu.org; Tue, 19 Jun 2012 15:15:31 -0400 Received: from cantor2.suse.de ([195.135.220.15]:48187 helo=mx2.suse.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Sh3th-0004Z9-7m; Tue, 19 Jun 2012 15:15:29 -0400 Received: from relay1.suse.de (unknown [195.135.220.254]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mx2.suse.de (Postfix) with ESMTP id EE3D4A472C; Tue, 19 Jun 2012 21:15:27 +0200 (CEST) From: Alexander Graf To: qemu-devel qemu-devel Date: Tue, 19 Jun 2012 21:14:55 +0200 Message-Id: <1340133324-352-3-git-send-email-agraf@suse.de> X-Mailer: git-send-email 1.6.0.2 In-Reply-To: <1340133324-352-1-git-send-email-agraf@suse.de> References: <1340133324-352-1-git-send-email-agraf@suse.de> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4-2.6 X-Received-From: 195.135.220.15 Cc: qemu-ppc Mailing List Subject: [Qemu-devel] [PATCH 02/31] dt: add helpers for multi-cell adds X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org We have device tree helpers that allow us to create single cell (u32) wide properties. However, when creating properties that contain an array of cells, we need to jump through hoops, manually passing in an array with converted endianness. To ease the pain of this, create a generic macro helper that allows us to pass the cells as arguments. Signed-off-by: Alexander Graf Reviewed-by: Peter Crosthwaite --- device_tree.h | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-) diff --git a/device_tree.h b/device_tree.h index 4378685..1e671e2 100644 --- a/device_tree.h +++ b/device_tree.h @@ -25,4 +25,16 @@ int qemu_devtree_setprop_string(void *fdt, const char *node_path, int qemu_devtree_nop_node(void *fdt, const char *node_path); int qemu_devtree_add_subnode(void *fdt, const char *name); +#define qemu_devtree_setprop_cells(fdt, node_path, property, ...) \ + do { \ + uint32_t qdt_tmp[] = { __VA_ARGS__ }; \ + int i; \ + \ + for (i = 0; i < ARRAY_SIZE(qdt_tmp); i++) { \ + qdt_tmp[i] = cpu_to_be32(qdt_tmp[i]); \ + } \ + qemu_devtree_setprop(fdt, node_path, property, qdt_tmp, \ + sizeof(qdt_tmp)); \ + } while (0) + #endif /* __DEVICE_TREE_H__ */