From patchwork Fri Jun 28 16:01:27 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrzej Pietrasiewicz X-Patchwork-Id: 11022947 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 70BF2112C for ; Fri, 28 Jun 2019 16:06:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5F7AB286B8 for ; Fri, 28 Jun 2019 16:06:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5126228746; Fri, 28 Jun 2019 16:06:45 +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=unavailable 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 06812286B8 for ; Fri, 28 Jun 2019 16:06:45 +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=xVRQ5DaXNIrKY0UI220YZeG7KeYW+VcAOKM9fRrZTAY=; b=TJ+W5t7FZfINLIGpHAHqi13YPl uDlWa9xfTvSR/5CZlZnVjtRt9+hee/s/mfkkYkbenrJFLypnNrXpKrpqKbGtjkgEL0wFbUzBodveU jREparGhLT5nHuVXTn02Mf4XR8hEeEWFaVTkkJUO6s5ye5bkNFF3Dt+2BvrIGoVg7Wxy+qOX77lUH GUakp1FXrcMWpSZ4iVg+Md3XKXD04ovYTscrm6zlyEvHmIC3WJticPhjkHmISbiYHDw1oL16WfMk8 8frXUKEZzw38dOX20N8t/Cx8qyeiQWbPPYA4FAfvTF9AqgVQiYQ6zE/3uZe6FuD3xoobliy5opkve mNNZm1Wg==; 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 1hgtOd-0001W3-6O; Fri, 28 Jun 2019 16:06:43 +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 1hgtOY-0001Ta-Pg; Fri, 28 Jun 2019 16:06:40 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: andrzej.p) with ESMTPSA id 5C436289CF0 From: Andrzej Pietrasiewicz To: dri-devel@lists.freedesktop.org Subject: [PATCH v3 13/22] drm: zte: Provide ddc symlink in vga connector sysfs directory Date: Fri, 28 Jun 2019 18:01:27 +0200 Message-Id: X-Mailer: git-send-email 2.17.1 In-Reply-To: References: <3fb19371-db7d-f9dc-31a7-1ccd126f6784@collabora.com> In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190628_090639_090067_53D78891 X-CRM114-Status: GOOD ( 14.64 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Upstream kernel work for Rockchip platforms 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 , 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 , freedreno@lists.freedesktop.org, linux-tegra@vger.kernel.org, Pengutronix Kernel Team , Jonas Karlman , Jani Nikula , linux-arm-msm@vger.kernel.org, Sascha Hauer , Maarten Lankhorst , Jyri Sarha , Inki Dae , Alexios Zavras , Mamta Shukla , linux-mediatek@lists.infradead.org, Matthias Brugger , Daniel Vetter , Thomas Gleixner , Sean Paul , linux-arm-kernel@lists.infradead.org, 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-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=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 --- drivers/gpu/drm/zte/zx_vga.c | 25 +++++++++---------------- 1 file changed, 9 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/zte/zx_vga.c b/drivers/gpu/drm/zte/zx_vga.c index 1634a08707fb..a3a4d6982888 100644 --- a/drivers/gpu/drm/zte/zx_vga.c +++ b/drivers/gpu/drm/zte/zx_vga.c @@ -23,15 +23,11 @@ struct zx_vga_pwrctrl { u32 mask; }; -struct zx_vga_i2c { - struct i2c_adapter adap; - struct mutex lock; -}; - struct zx_vga { struct drm_connector connector; struct drm_encoder encoder; - struct zx_vga_i2c *ddc; + /* protects ddc access */ + struct mutex ddc_lock; struct device *dev; void __iomem *mmio; struct clk *i2c_wclk; @@ -86,7 +82,7 @@ static int zx_vga_connector_get_modes(struct drm_connector *connector) */ zx_writel(vga->mmio + VGA_AUTO_DETECT_SEL, 0); - edid = drm_get_edid(connector, &vga->ddc->adap); + edid = drm_get_edid(connector, connector->ddc); if (!edid) { /* * If EDID reading fails, we set the device state into @@ -282,11 +278,10 @@ static int zx_vga_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) { struct zx_vga *vga = i2c_get_adapdata(adap); - struct zx_vga_i2c *ddc = vga->ddc; int ret = 0; int i; - mutex_lock(&ddc->lock); + mutex_lock(&vga->ddc_lock); for (i = 0; i < num; i++) { if (msgs[i].flags & I2C_M_RD) @@ -301,7 +296,7 @@ static int zx_vga_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, if (!ret) ret = num; - mutex_unlock(&ddc->lock); + mutex_unlock(&vga->ddc_lock); return ret; } @@ -320,17 +315,15 @@ static int zx_vga_ddc_register(struct zx_vga *vga) { struct device *dev = vga->dev; struct i2c_adapter *adap; - struct zx_vga_i2c *ddc; int ret; - ddc = devm_kzalloc(dev, sizeof(*ddc), GFP_KERNEL); - if (!ddc) + adap = devm_kzalloc(dev, sizeof(*adap), GFP_KERNEL); + if (!adap) return -ENOMEM; - vga->ddc = ddc; - mutex_init(&ddc->lock); + vga->connector.ddc = adap; + mutex_init(&vga->ddc_lock); - adap = &ddc->adap; adap->owner = THIS_MODULE; adap->class = I2C_CLASS_DDC; adap->dev.parent = dev;