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 X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,T_DKIMWL_WL_HIGH,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 94573C4321A for ; Tue, 11 Jun 2019 10:17:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6101021744 for ; Tue, 11 Jun 2019 10:17:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560248243; bh=uAVNKwQsk008WMN9I4bdYYLY9j8+uUFL/Mq3nvXQu1E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=M3r0v9sM3SYE05rTpk7QYqptrLV1njlu5rxsZZBgVbzRZgG3jdIbEnoOXRtCHHZCH h91AWof50On1rDaeXSwmQGNrXq7mIlV5pir2xtDd9pVauZXKHgt58bMbz7E0WUkQBP VAZxKyOe2W/FifUSf93jZpwm8/YT6C1h3+P3t/9s= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405298AbfFKKRW (ORCPT ); Tue, 11 Jun 2019 06:17:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:45540 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405038AbfFKKRV (ORCPT ); Tue, 11 Jun 2019 06:17:21 -0400 Received: from wens.tw (mirror2.csie.ntu.edu.tw [140.112.30.76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 121C8212F5; Tue, 11 Jun 2019 10:17:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560248241; bh=uAVNKwQsk008WMN9I4bdYYLY9j8+uUFL/Mq3nvXQu1E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wQYoJEDm6ZJ8bMcz+vCo/iiV6bx2Ro5ZSfz/GPXanc9zscMEubXZd6D7REBTi0l9J AvEf/8g1PHEnv974piDwhvmHKSRXS2Xlo2WVzVdDUqPdexkxhcv3lhqVaqBbPnD3oB GRBzyiEn7cH8vNvFTUbxudmsfjopqV/+uBk0ODy0= Received: by wens.tw (Postfix, from userid 1000) id 1871B60039; Tue, 11 Jun 2019 18:17:18 +0800 (CST) From: Chen-Yu Tsai To: Maxime Ripard , Stephen Boyd , Michael Turquette Cc: Chen-Yu Tsai , linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Chen-Yu Tsai Subject: [PATCH v2 02/25] clk: Add CLK_HW_INIT_* macros using .parent_hws Date: Tue, 11 Jun 2019 18:16:35 +0800 Message-Id: <20190611101658.23855-3-wens@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190611101658.23855-1-wens@kernel.org> References: <20190611101658.23855-1-wens@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Chen-Yu Tsai With the new clk parenting code, struct clk_init_data was expanded to include .parent_hws, for clk drivers to directly list parents by pointing to their respective struct clk_hw's. Add macros that can take either one single struct clk_hw *, or an array of them, for drivers to use. A special CLK_HW_INIT_HWS macro is included, which takes an array of struct clk_hw *, but sets .num_parents to 1. This variant is to allow the reuse of the array, instead of having a compound literal allocated for each clk sharing the same parent. Signed-off-by: Chen-Yu Tsai --- include/linux/clk-provider.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index bb6118f79784..70aad5cefea7 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -904,6 +904,29 @@ extern struct of_device_id __clk_of_table; .ops = _ops, \ }) +#define CLK_HW_INIT_HW(_name, _parent, _ops, _flags) \ + (&(struct clk_init_data) { \ + .flags = _flags, \ + .name = _name, \ + .parent_hws = (const struct clk_hw*[]) { _parent }, \ + .num_parents = 1, \ + .ops = _ops, \ + }) + +/* + * This macro is intended for drivers to be able to share the otherwise + * individual struct clk_hw[] compound literals created by the compiler + * when using CLK_HW_INIT_HW. It does NOT support multiple parents. + */ +#define CLK_HW_INIT_HWS(_name, _parent, _ops, _flags) \ + (&(struct clk_init_data) { \ + .flags = _flags, \ + .name = _name, \ + .parent_hws = _parent, \ + .num_parents = 1, \ + .ops = _ops, \ + }) + #define CLK_HW_INIT_PARENTS(_name, _parents, _ops, _flags) \ (&(struct clk_init_data) { \ .flags = _flags, \ @@ -913,6 +936,15 @@ extern struct of_device_id __clk_of_table; .ops = _ops, \ }) +#define CLK_HW_INIT_PARENTS_HW(_name, _parents, _ops, _flags) \ + (&(struct clk_init_data) { \ + .flags = _flags, \ + .name = _name, \ + .parent_hws = _parents, \ + .num_parents = ARRAY_SIZE(_parents), \ + .ops = _ops, \ + }) + #define CLK_HW_INIT_NO_PARENT(_name, _ops, _flags) \ (&(struct clk_init_data) { \ .flags = _flags, \ -- 2.20.1