From patchwork Sun Mar 1 02:28:47 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yakir Yang X-Patchwork-Id: 5906641 Return-Path: X-Original-To: patchwork-linux-rockchip@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 84885BF440 for ; Sun, 1 Mar 2015 02:31:20 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B096E202B4 for ; Sun, 1 Mar 2015 02:31:19 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 56D55202EB for ; Sun, 1 Mar 2015 02:31:18 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YRtf2-0000nT-RW; Sun, 01 Mar 2015 02:31:16 +0000 Received: from regular1.263xmail.com ([211.150.99.134]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YRtf0-0000if-La for linux-rockchip@lists.infradead.org; Sun, 01 Mar 2015 02:31:15 +0000 Received: from ykk?rock-chips.com (unknown [192.168.167.84]) by regular1.263xmail.com (Postfix) with SMTP id A6CA66E17; Sun, 1 Mar 2015 10:30:45 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id D1B731EB9F; Sun, 1 Mar 2015 10:30:42 +0800 (CST) X-RL-SENDER: ykk@rock-chips.com X-FST-TO: djkurtz@chromium.org X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: ykk@rock-chips.com X-UNIQUE-TAG: <81003b53a622320f97d2c1c10ca44232> X-ATTACHMENT-NUM: 0 X-SENDER: ykk@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith ESMTP id 29658HLWAEG; Sun, 01 Mar 2015 10:30:44 +0800 (CST) From: Yakir Yang To: djkurtz@chromium.org, dianders@chromium.org, linux-rockchip@lists.infradead.org Subject: [PATCH v4 02/15] drm: bridge/dw_hdmi: wrap irq control in fucntions Date: Sat, 28 Feb 2015 21:28:47 -0500 Message-Id: <1425176927-1784-1-git-send-email-ykk@rock-chips.com> X-Mailer: git-send-email 2.1.2 In-Reply-To: <1425175834-24661-1-git-send-email-ykk@rock-chips.com> References: <1425175834-24661-1-git-send-email-ykk@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150228_183115_232244_1F833D9B X-CRM114-Status: UNSURE ( 7.73 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.0 (/) Cc: Fabio Estevam , mmind00@googlemail.com, marcheu@chromium.org, David Airlie , Greg Kroah-Hartman , Yakir Yang , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Philipp Zabel , Andy Yan , Russell King , mark.yao@rock-chips.com X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Wrap irq control in functions, and then we can call in dw_hdmi_bind/dw_hdmi_unbind/dw_hdmi_resume/dw_hdmi_suspend functions. Signed-off-by: Yakir Yang --- Changes in v4: None Changes in v3: - Wrap irq control in fucntions Changes in v2: None drivers/gpu/drm/bridge/dw_hdmi.c | 75 ++++++++++++++++++++-------------------- 1 file changed, 37 insertions(+), 38 deletions(-) diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c index dc314f5..08f10da 100644 --- a/drivers/gpu/drm/bridge/dw_hdmi.c +++ b/drivers/gpu/drm/bridge/dw_hdmi.c @@ -1330,6 +1330,40 @@ static void initialize_hdmi_ih_mutes(struct dw_hdmi *hdmi) hdmi_writeb(hdmi, ih_mute, HDMI_IH_MUTE); } +static void hdmi_mute_interrupts(struct dw_hdmi *hdmi) +{ + u8 ih_mute; + + /* Disable all interrupts */ + hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0); + + /* Disable top level interrupt bits in HDMI block */ + ih_mute = hdmi_readb(hdmi, HDMI_IH_MUTE) | + HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT | + HDMI_IH_MUTE_MUTE_ALL_INTERRUPT; + + hdmi_writeb(hdmi, ih_mute, HDMI_IH_MUTE); +} + +static void hdmi_unmute_interrupts(struct dw_hdmi *hdmi) +{ + initialize_hdmi_ih_mutes(hdmi); + + /* + * Configure registers related to HDMI interrupt + * generation before registering IRQ. + */ + hdmi_writeb(hdmi, HDMI_PHY_HPD, HDMI_PHY_POL0); + + /* Clear Hotplug interrupts */ + hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD, HDMI_IH_PHY_STAT0); + + dw_hdmi_fb_registered(hdmi); + + /* Unmute interrupts */ + hdmi_writeb(hdmi, ~HDMI_IH_PHY_STAT0_HPD, HDMI_IH_MUTE_PHY_STAT0); +} + static void dw_hdmi_poweron(struct dw_hdmi *hdmi) { dw_hdmi_setup(hdmi, &hdmi->previous_mode); @@ -1650,25 +1684,11 @@ int dw_hdmi_bind(struct device *dev, struct device *master, */ hdmi_init_clk_regenerator(hdmi); - /* - * Configure registers related to HDMI interrupt - * generation before registering IRQ. - */ - hdmi_writeb(hdmi, HDMI_PHY_HPD, HDMI_PHY_POL0); - - /* Clear Hotplug interrupts */ - hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD, HDMI_IH_PHY_STAT0); - - ret = dw_hdmi_fb_registered(hdmi); - if (ret) - goto err_iahb; - ret = dw_hdmi_register(drm, hdmi); if (ret) goto err_iahb; - /* Unmute interrupts */ - hdmi_writeb(hdmi, ~HDMI_IH_PHY_STAT0_HPD, HDMI_IH_MUTE_PHY_STAT0); + hdmi_unmute_interrupts(hdmi); dev_set_drvdata(dev, hdmi); @@ -1702,17 +1722,8 @@ EXPORT_SYMBOL_GPL(dw_hdmi_unbind); int dw_hdmi_suspend(struct device *dev) { struct dw_hdmi *hdmi = dev_get_drvdata(dev); - u8 ih_mute; - - /* Disable all interrupts */ - hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0); - - /* Disable top level interrupt bits in HDMI block */ - ih_mute = hdmi_readb(hdmi, HDMI_IH_MUTE) | - HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT | - HDMI_IH_MUTE_MUTE_ALL_INTERRUPT; - hdmi_writeb(hdmi, ih_mute, HDMI_IH_MUTE); + hdmi_mute_interrupts(hdmi); return 0; } @@ -1722,19 +1733,7 @@ int dw_hdmi_resume(struct device *dev) { struct dw_hdmi *hdmi = dev_get_drvdata(dev); - /* - * Configure registers related to HDMI interrupt - * generation before registering IRQ. - */ - hdmi_writeb(hdmi, HDMI_PHY_HPD, HDMI_PHY_POL0); - - /* Clear Hotplug interrupts */ - hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD, HDMI_IH_PHY_STAT0); - - dw_hdmi_fb_registered(hdmi); - - /* Unmute interrupts */ - hdmi_writeb(hdmi, ~HDMI_IH_PHY_STAT0_HPD, HDMI_IH_MUTE_PHY_STAT0); + hdmi_unmute_interrupts(hdmi); return 0; }