From patchwork Thu Jul 11 11:26:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrzej Pietrasiewicz X-Patchwork-Id: 11039779 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0309813B1 for ; Thu, 11 Jul 2019 11:29:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E4A4328A6C for ; Thu, 11 Jul 2019 11:29:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D76AC28A6F; Thu, 11 Jul 2019 11:29:58 +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,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 764E228A6C for ; Thu, 11 Jul 2019 11:29:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=U8dxCcRndzlsHH6CG8KfRrQtnMEVGtBujB3OIMRaWUo=; b=oGcjJzeNaNzH1RUfoDcxbMAnAH iWomVYVHd7IFpiL6R0WClxXSM7oha422g4xt7sJNEYL/dp+oIZmuSFTdnEl6NwDnaeC07vQWugg/R gBJshWVV1BOmdBmkuUR/eSefUw213+DLgQX7jdvhzb0p0yG0HoAIyqq608F3JRMvBtGSfyAjVtsE2 bxAInC3neIHk3YwHQjIc5QYNl6NJNyB4LYvu8l9iZ0UGlCQ5gUhcV9IdHq22ZaNEs282z9alr3Jm5 s0p58rLIDMr8vBrGXfJ5OeKBHSmjJAHskz5JP9kUvhdHILMD3npZDIx/zicpojNF9rl1ldYly+r5P AhIVIMdw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hlXGw-0006Ty-7u; Thu, 11 Jul 2019 11:29:58 +0000 Received: from bhuna.collabora.co.uk ([46.235.227.227]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hlXGt-0006Sq-FE; Thu, 11 Jul 2019 11:29:56 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: andrzej.p) with ESMTPSA id 1E38928B690 From: Andrzej Pietrasiewicz To: dri-devel@lists.freedesktop.org Subject: [PATCH v4 12/23] drm: zte: Provide ddc symlink in hdmi connector sysfs directory Date: Thu, 11 Jul 2019 13:26:39 +0200 Message-Id: <4a9fb80b4dc328b420ca5d94ebc2810ab86f788c.1562843413.git.andrzej.p@collabora.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190711_042955_773449_697CF32E X-CRM114-Status: GOOD ( 13.81 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Y.C. Chen" , =?utf-8?q?Heiko_St=C3=BCbner?= , Sam Ravnborg , Neil Armstrong , Maxime Ripard , Ramalingam C , Joonas Lahtinen , Douglas Anderson , Andrzej Hajda , Thierry Reding , Laurent Pinchart , Benjamin Gaignard , kernel@collabora.com, Fabio Estevam , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , "David \(ChunMing\) Zhou" , linux-samsung-soc@vger.kernel.org, Joonyoung Shim , linux-rockchip@lists.infradead.org, Vincent Abriou , Rob Clark , Krzysztof Kozlowski , Jonathan Hunter , David Airlie , Chen-Yu Tsai , Kukjin Kim , NXP Linux Team , CK Hu , Dave Airlie , Harry Wentland , intel-gfx@lists.freedesktop.org, Shashank Sharma , freedreno@lists.freedesktop.org, linux-tegra@vger.kernel.org, Daniel Vetter , Jonas Karlman , linux-arm-msm@vger.kernel.org, Sascha Hauer , Maarten Lankhorst , Jani Nikula , Inki Dae , Mamta Shukla , linux-mediatek@lists.infradead.org, Jyri Sarha , Rodrigo Vivi , Matthias Brugger , Thomas Gleixner , Chris Wilson , Sean Paul , Pengutronix Kernel Team , linux-arm-kernel@lists.infradead.org, Enrico Weigelt , amd-gfx@lists.freedesktop.org, Tomi Valkeinen , Eric Anholt , Thomas Zimmermann , Seung-Woo Kim , Sandy Huang , linux-kernel@vger.kernel.org, Todor Tomov , Kyungmin Park , Huang Rui , Philipp Zabel , Alex Deucher , Shawn Guo , =?utf-8?q?Christian_K=C3=B6nig?= , Gerd Hoffmann MIME-Version: 1.0 Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Use the ddc pointer provided by the generic connector. Signed-off-by: Andrzej Pietrasiewicz Acked-by: Shawn Guo --- drivers/gpu/drm/zte/zx_hdmi.c | 25 +++++++++---------------- 1 file changed, 9 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/zte/zx_hdmi.c b/drivers/gpu/drm/zte/zx_hdmi.c index bfe918b27c5c..862a855ea14a 100644 --- a/drivers/gpu/drm/zte/zx_hdmi.c +++ b/drivers/gpu/drm/zte/zx_hdmi.c @@ -29,15 +29,11 @@ #define ZX_HDMI_INFOFRAME_SIZE 31 #define DDC_SEGMENT_ADDR 0x30 -struct zx_hdmi_i2c { - struct i2c_adapter adap; - struct mutex lock; -}; - struct zx_hdmi { struct drm_connector connector; struct drm_encoder encoder; - struct zx_hdmi_i2c *ddc; + /* protects ddc access */ + struct mutex ddc_lock; struct device *dev; struct drm_device *drm; void __iomem *mmio; @@ -264,7 +260,7 @@ static int zx_hdmi_connector_get_modes(struct drm_connector *connector) struct edid *edid; int ret; - edid = drm_get_edid(connector, &hdmi->ddc->adap); + edid = drm_get_edid(connector, connector->ddc); if (!edid) return 0; @@ -562,10 +558,9 @@ static int zx_hdmi_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) { struct zx_hdmi *hdmi = i2c_get_adapdata(adap); - struct zx_hdmi_i2c *ddc = hdmi->ddc; int i, ret = 0; - mutex_lock(&ddc->lock); + mutex_lock(&hdmi->ddc_lock); /* Enable DDC master access */ hdmi_writeb_mask(hdmi, TPI_DDC_MASTER_EN, HW_DDC_MASTER, HW_DDC_MASTER); @@ -590,7 +585,7 @@ static int zx_hdmi_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, /* Disable DDC master access */ hdmi_writeb_mask(hdmi, TPI_DDC_MASTER_EN, HW_DDC_MASTER, 0); - mutex_unlock(&ddc->lock); + mutex_unlock(&hdmi->ddc_lock); return ret; } @@ -608,17 +603,15 @@ static const struct i2c_algorithm zx_hdmi_algorithm = { static int zx_hdmi_ddc_register(struct zx_hdmi *hdmi) { struct i2c_adapter *adap; - struct zx_hdmi_i2c *ddc; int ret; - ddc = devm_kzalloc(hdmi->dev, sizeof(*ddc), GFP_KERNEL); - if (!ddc) + adap = devm_kzalloc(hdmi->dev, sizeof(*adap), GFP_KERNEL); + if (!adap) return -ENOMEM; - hdmi->ddc = ddc; - mutex_init(&ddc->lock); + hdmi->connector.ddc = adap; + mutex_init(&hdmi->ddc_lock); - adap = &ddc->adap; adap->owner = THIS_MODULE; adap->class = I2C_CLASS_DDC; adap->dev.parent = hdmi->dev;