From patchwork Fri Jul 6 17:51:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Jernej_=C5=A0krabec?= X-Patchwork-Id: 10513721 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 002D86032A for ; Mon, 9 Jul 2018 07:10:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DFE5128A3D for ; Mon, 9 Jul 2018 07:10:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D431728A40; Mon, 9 Jul 2018 07:10:18 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 8287328A3D for ; Mon, 9 Jul 2018 07:10:18 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 914056E3B7; Mon, 9 Jul 2018 07:07:27 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail.siol.net (mailoutvs48.siol.net [185.57.226.239]) by gabe.freedesktop.org (Postfix) with ESMTPS id C040F6F0ED for ; Fri, 6 Jul 2018 17:53:17 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mail.siol.net (Postfix) with ESMTP id 03B1352099D; Fri, 6 Jul 2018 19:53:16 +0200 (CEST) X-Virus-Scanned: amavisd-new at psrvmta11.zcs-production.pri Received: from mail.siol.net ([127.0.0.1]) by localhost (psrvmta11.zcs-production.pri [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id Fste9UTQSDCv; Fri, 6 Jul 2018 19:53:15 +0200 (CEST) Received: from mail.siol.net (localhost [127.0.0.1]) by mail.siol.net (Postfix) with ESMTPS id 66E6A520BA1; Fri, 6 Jul 2018 19:53:15 +0200 (CEST) Received: from localhost.localdomain (unknown [194.152.15.144]) (Authenticated sender: 031275009) by mail.siol.net (Postfix) with ESMTPSA id D4564520EC6; Fri, 6 Jul 2018 19:53:12 +0200 (CEST) From: Jernej Skrabec To: maxime.ripard@bootlin.com, wens@csie.org, robh+dt@kernel.org Subject: [PATCH 04/17] drm/sun4i: tcon-top: Cleanup clock handling Date: Fri, 6 Jul 2018 19:51:00 +0200 Message-Id: <20180706175113.26698-5-jernej.skrabec@siol.net> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180706175113.26698-1-jernej.skrabec@siol.net> References: <20180706175113.26698-1-jernej.skrabec@siol.net> X-Mailman-Approved-At: Mon, 09 Jul 2018 07:06:43 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, airlied@linux.ie, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sunxi@googlegroups.com, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP There is no need to acquire reference to clock just to get its name. This commit just cleans up the code. There is no functional change. Signed-off-by: Jernej Skrabec Reviewed-by: Chen-Yu Tsai --- drivers/gpu/drm/sun4i/sun8i_tcon_top.c | 48 ++++++-------------------- 1 file changed, 11 insertions(+), 37 deletions(-) diff --git a/drivers/gpu/drm/sun4i/sun8i_tcon_top.c b/drivers/gpu/drm/sun4i/sun8i_tcon_top.c index 8da0460e0028..9fb51940156f 100644 --- a/drivers/gpu/drm/sun4i/sun8i_tcon_top.c +++ b/drivers/gpu/drm/sun4i/sun8i_tcon_top.c @@ -44,15 +44,20 @@ static int sun8i_tcon_top_get_connected_ep_id(struct device_node *node, } static struct clk_hw *sun8i_tcon_top_register_gate(struct device *dev, - struct clk *parent, + const char *parent, void __iomem *regs, spinlock_t *lock, u8 bit, int name_index) { const char *clk_name, *parent_name; - int ret; + int ret, index; + + index = of_property_match_string(dev->of_node, "clock-names", parent); + if (IS_ERR_VALUE(index)) + return ERR_PTR(index); + + parent_name = of_clk_get_parent_name(dev->of_node, index); - parent_name = __clk_get_name(parent); ret = of_property_read_string_index(dev->of_node, "clock-output-names", name_index, &clk_name); @@ -69,7 +74,6 @@ static int sun8i_tcon_top_bind(struct device *dev, struct device *master, void *data) { struct platform_device *pdev = to_platform_device(dev); - struct clk *dsi, *tcon_tv0, *tcon_tv1, *tve0, *tve1; struct clk_hw_onecell_data *clk_data; struct sun8i_tcon_top *tcon_top; bool mixer0_unused = false; @@ -103,36 +107,6 @@ static int sun8i_tcon_top_bind(struct device *dev, struct device *master, return PTR_ERR(tcon_top->bus); } - dsi = devm_clk_get(dev, "dsi"); - if (IS_ERR(dsi)) { - dev_err(dev, "Couldn't get the dsi clock\n"); - return PTR_ERR(dsi); - } - - tcon_tv0 = devm_clk_get(dev, "tcon-tv0"); - if (IS_ERR(tcon_tv0)) { - dev_err(dev, "Couldn't get the tcon-tv0 clock\n"); - return PTR_ERR(tcon_tv0); - } - - tcon_tv1 = devm_clk_get(dev, "tcon-tv1"); - if (IS_ERR(tcon_tv1)) { - dev_err(dev, "Couldn't get the tcon-tv1 clock\n"); - return PTR_ERR(tcon_tv1); - } - - tve0 = devm_clk_get(dev, "tve0"); - if (IS_ERR(tve0)) { - dev_err(dev, "Couldn't get the tve0 clock\n"); - return PTR_ERR(tve0); - } - - tve1 = devm_clk_get(dev, "tve1"); - if (IS_ERR(tve1)) { - dev_err(dev, "Couldn't get the tve1 clock\n"); - return PTR_ERR(tve1); - } - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); regs = devm_ioremap_resource(dev, res); if (IS_ERR(regs)) @@ -203,17 +177,17 @@ static int sun8i_tcon_top_bind(struct device *dev, struct device *master, * to TVE clock parent. */ clk_data->hws[CLK_TCON_TOP_TV0] = - sun8i_tcon_top_register_gate(dev, tcon_tv0, regs, + sun8i_tcon_top_register_gate(dev, "tcon-tv0", regs, &tcon_top->reg_lock, TCON_TOP_TCON_TV0_GATE, 0); clk_data->hws[CLK_TCON_TOP_TV1] = - sun8i_tcon_top_register_gate(dev, tcon_tv1, regs, + sun8i_tcon_top_register_gate(dev, "tcon-tv1", regs, &tcon_top->reg_lock, TCON_TOP_TCON_TV1_GATE, 1); clk_data->hws[CLK_TCON_TOP_DSI] = - sun8i_tcon_top_register_gate(dev, dsi, regs, + sun8i_tcon_top_register_gate(dev, "dsi", regs, &tcon_top->reg_lock, TCON_TOP_TCON_DSI_GATE, 2);