From patchwork Tue Feb 3 15:02:21 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yakir Yang X-Patchwork-Id: 5769371 Return-Path: X-Original-To: patchwork-alsa-devel@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 BA25EBF440 for ; Tue, 3 Feb 2015 15:16:46 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CFB6020253 for ; Tue, 3 Feb 2015 15:16:44 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.kernel.org (Postfix) with ESMTP id 89C13200E3 for ; Tue, 3 Feb 2015 15:16:43 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id BA6182619D9; Tue, 3 Feb 2015 16:16:42 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Status: No, score=-0.2 required=5.0 tests=BAYES_00,NO_DNS_FOR_FROM, UNPARSEABLE_RELAY,URIBL_BLACK autolearn=no version=3.3.1 Received: from alsa0.perex.cz (localhost [IPv6:::1]) by alsa0.perex.cz (Postfix) with ESMTP id 847F4261557; Tue, 3 Feb 2015 16:14:12 +0100 (CET) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id B59FC2604AE; Tue, 3 Feb 2015 16:03:18 +0100 (CET) Received: from regular1.263xmail.com (regular1.263xmail.com [211.150.99.132]) by alsa0.perex.cz (Postfix) with ESMTP id 4D7E426049F for ; Tue, 3 Feb 2015 16:03:12 +0100 (CET) Received: from ykk?rock-chips.com (unknown [192.168.167.12]) by regular1.263xmail.com (Postfix) with SMTP id E78318912; Tue, 3 Feb 2015 23:03:06 +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 B43763C0; Tue, 3 Feb 2015 23:02:36 +0800 (CST) X-RL-SENDER: ykk@rock-chips.com X-FST-TO: airlied@linux.ie X-SENDER-IP: 192.253.240.203 X-LOGIN-NAME: ykk@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-SENDER: ykk@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [192.253.240.203]) by smtp.263.net (Postfix) whith ESMTP id 27822GLH584; Tue, 03 Feb 2015 23:03:06 +0800 (CST) From: Yakir Yang To: David Airlie , Russell King , Philipp Zabel Date: Tue, 3 Feb 2015 10:02:21 -0500 Message-Id: <1422975741-13503-1-git-send-email-ykk@rock-chips.com> X-Mailer: git-send-email 2.1.2 In-Reply-To: <1422975418-13302-1-git-send-email-ykk@rock-chips.com> References: <1422975418-13302-1-git-send-email-ykk@rock-chips.com> X-Mailman-Approved-At: Tue, 03 Feb 2015 16:14:08 +0100 Cc: Mark Rutland , alsa-devel@alsa-project.org, Heiko Stuebner , dbehr@chromoum.org, djkurtz@chromium.org, dianders@chromium.org, Yakir Yang , mmind00@googlemail.com, Pawel Moll , linux-rockchip@lists.infradead.org, Sean Cross , devicetree@vger.kernel.org, Arnd Bergmann , Ian Campbell , Jyri Sarha , Ben Zhang , Rob Herring , dri-devel@lists.freedesktop.org, marcheu@chromium.org, linux-arm-kernel@lists.infradead.org, Mark Yao , Fabio Estevam , linux-kernel@vger.kernel.org, Rob Clark , Daniel Vetter , Kumar Gala , Shawn Guo Subject: [alsa-devel] [PATCH v3 02/15] drm: bridge/dw_hdmi: wrap irq control in fucntions X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.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 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; }