Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1269662

[PATCH V2] clk: imx: clk-imx6q: Let OSC to be routed to anaclk2/2b

Path csiph.com!goblin2!goblin.stu.neva.ru!aioe.org!bofh.it!news.nic.it!robomod
From Michael Trimarchi <michael@amarulasolutions.com>
Newsgroups linux.kernel
Subject [PATCH V2] clk: imx: clk-imx6q: Let OSC to be routed to anaclk2/2b
Date Sun, 15 Nov 2015 11:40:01 +0100
Message-ID <qv2SZ-9B-9@gated-at.bofh.it> (permalink)
References <qsyPn-18x-15@gated-at.bofh.it> <qv2Jj-6m-7@gated-at.bofh.it>
X-Original-To shawnguo@kernel.org
Dkim-Signature v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions_com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; bh=9VmMNla8m8gZkk4oIf5wz1nA/oWkfYdVBwKQZ2rqVkE=; b=f0UmWVr11PNNxq2HCgPE+lTGserJyhWlMQ6NNL5QQ38a1CHMNeGGTfgR4kLN2u6IvA DeqodcbOE8G+cjy1Ssex0KHa0KfjXUF8zVmY7lCJ4GC7gU8Epkp39zR3gQTblys9wW/S 3nuii2hvQfGfSAaT/129TQnywwtk5mALIabkpBIoD+8UxYUvygAC1bwy9m4ycoG4iF1J CulNycawS0F/DHT0f7u9meIesmi/sgj4LCZZYLWr3Irp1URC0+6vw9Jzpy8woYD20exQ mHj5lFukobCDm/2EfRskjqw2V4cbNsyYdkne9ECB+EdhGH8BYMbV2fwvGRYo/QOquaqo NJTg==
X-Google-Dkim-Signature v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-type:content-disposition:in-reply-to :user-agent; bh=9VmMNla8m8gZkk4oIf5wz1nA/oWkfYdVBwKQZ2rqVkE=; b=knz3eKS7kGJ8sTE/9b9dX6UXd8e0NbEhnk3pLhjFLQi4BnzcddB9XWhPznDAtyj+sV k7Ay1NRaZKGiaEO4LI5V8X/K881FThSGIZvc5Y54KgnhGsTVweWF79ZewNmdXSo9xf0P ibdulgPpyb6vBXGg1oE/5K5CVIgC2VG3zjAc1vO7lCofW6WsZ4ZMIhaIgTV9t3HXgNAP cuNrIYsdCi6nBNABXJ7KuQQlB3T5xIXkVTgTsPcMiYbj/oqvKE/C1woiZSXvMzC691AW 9T5AElM+8Ki/BeCVANc5FEvhtH+aJOkZ0mAGeRQSWbDhKE10h8ax4f1C5BSs3UoAudDU R7iA==
X-Gm-Message-State ALoCoQkhDTFgh3UxADLDO99mOdeOSRb1tFtakckGYxQV2Va51FUh2JMWomCCC8CcFR7a+HEijSeO
X-Received by 10.194.179.101 with SMTP id df5mr31087469wjc.60.1447583889354; Sun, 15 Nov 2015 02:38:09 -0800 (PST)
MIME-Version 1.0
Content-Type text/plain; charset=us-ascii
Content-Disposition inline
User-Agent Mutt/1.5.21 (2010-09-15)
Sender robomod@news.nic.it
List-ID <linux-kernel.vger.kernel.org>
X-Mailing-List linux-kernel@vger.kernel.org
Approved robomod@news.nic.it
Lines 56
Organization linux.* mail to news gateway
X-Original-Cc kernel@pengutronix.de, mturquette@baylibre.com, sboyd@codeaurora.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org
X-Original-Date Sun, 15 Nov 2015 11:38:04 +0100
X-Original-Message-ID <20151115103800.GB9808@panicking>
X-Original-References <1446991642-3088-1-git-send-email-michael@amarulasolutions.com> <20151115101938.GA9808@panicking>
X-Original-Sender linux-kernel-owner@vger.kernel.org
Xref csiph.com linux.kernel:1269662

Show key headers only | View raw


OSC can be used as USB hub source clock. An example we can route to
CLK2_P imx6 pin.

This show a usage example:

[...]
	usb_hub: usb-hub {
		compatible = "smsc,usb3503a";
		clocks = <&clks IMX6QDL_CLK_LVDS2_GATE>;
		clock-names = "refclk";
	};
};

[...]
&clks {
        assigned-clocks = <&clks IMX6QDL_CLK_LVDS2_SEL>;
        assigned-clock-parents = <&clks IMX6QDL_CLK_OSC>;
};

/sys/kernel/debug/clk/clk_summary

osc                                 5            5    24000000          0 0
[...]
    lvds2_sel                       1            1    24000000          0 0
       lvds2_gate                   1            1    24000000          0 0
[...]

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
---
Changes in v2:
	- rework the commit message to give a better description

 drivers/clk/imx/clk-imx6q.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c
index b2c1c04..8fe0015 100644
--- a/drivers/clk/imx/clk-imx6q.c
+++ b/drivers/clk/imx/clk-imx6q.c
@@ -70,7 +70,8 @@ static const char *cko_sels[] = { "cko1", "cko2", };
 static const char *lvds_sels[] = {
 	"dummy", "dummy", "dummy", "dummy", "dummy", "dummy",
 	"pll4_audio", "pll5_video", "pll8_mlb", "enet_ref",
-	"pcie_ref_125m", "sata_ref_100m",
+	"pcie_ref_125m", "sata_ref_100m",  "usbphy1", "usbphy2",
+	"dummy", "dummy", "dummy", "dummy", "osc",
 };
 static const char *pll_bypass_src_sels[] = { "osc", "lvds1_in", "lvds2_in", "dummy", };
 static const char *pll1_bypass_sels[] = { "pll1", "pll1_bypass_src", };
-- 
2.6.3
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

[PATCH] clk: imx: clk-imx6q: Let OSC to be routed to anaclk2/2b Michael Trimarchi <michael@amarulasolutions.com> - 2015-11-08 15:10 +0100
  Re: [PATCH] clk: imx: clk-imx6q: Let OSC to be routed to anaclk2/2b Michael Trimarchi <michael@amarulasolutions.com> - 2015-11-15 11:30 +0100
    [PATCH V2] clk: imx: clk-imx6q: Let OSC to be routed to anaclk2/2b Michael Trimarchi <michael@amarulasolutions.com> - 2015-11-15 11:40 +0100
      Re: [PATCH V2] clk: imx: clk-imx6q: Let OSC to be routed to  anaclk2/2b Shawn Guo <shawnguo@kernel.org> - 2015-11-25 06:30 +0100
  Re: [PATCH] clk: imx: clk-imx6q: Let OSC to be routed to anaclk2/2b Lucas Stach <l.stach@pengutronix.de> - 2015-11-17 10:40 +0100

csiph-web