From: Wolfram Sang <w.sang@pengutronix.de>
To: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Cc: linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-samsung-soc@vger.kernel.org, khali@linux-fr.org,
ben-linux@fluff.org, grant.likely@secretlab.ca,
devicetree-discuss@lists.ozlabs.org, sjg@chromium.org,
grundler@chromium.org, naveenkrishna.ch@gmail.com,
broonie@opensource.wolfsonmicro.com
Subject: Re: [PATCH v4] i2c: exynos5: add High Speed I2C controller driver
Date: Fri, 1 Feb 2013 20:29:23 +0100 [thread overview]
Message-ID: <20130201192923.GA23176@pengutronix.de> (raw)
In-Reply-To: <1359734084-10594-1-git-send-email-ch.naveen@samsung.com>
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On Fri, Feb 01, 2013 at 09:24:44PM +0530, Naveen Krishna Chatradhi wrote:
> Adds support for High Speed I2C driver found in Exynos5 and later
> SoCs from Samsung. This driver currently supports Auto mode.
>
> Driver only supports Device Tree method.
> Note: Added debugfs support for registers view, not tested.
>
> Signed-off-by: Taekgyun Ko <taeggyun.ko@samsung.com>
> Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
> ---
> Help please,
>
> Usual reads and writes are happening. But, when i try doing
> i2cdetect -y 0 0x10 0x59; It throws me continous interrupts at 0x1a
> i2cdetect -y 0 0x50 0x64; It throws me continous interrupts at 0x63
>
> There are eeproms from 0x50 till 0x58
> wm8994 codec at 0x1a
>
> Kindly, can anyone explain this behaviour.
You select I2C_FUNC_SMBUS_EMUL, but make sure your hardware really
supports I2C_FUNC_SMBUS_QUICK. That would be my first guess. Also, which
eeprom do you have? Check its datasheet, some in deed use 8 addresses.
Regards,
Wolfram
--
Pengutronix e.K. | Wolfram Sang |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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WARNING: multiple messages have this Message-ID (diff)
From: Wolfram Sang <w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
To: Naveen Krishna Chatradhi
<ch.naveen-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-samsung-soc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
khali-PUYAD+kWke1g9hUCZPvPmw@public.gmane.org,
ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org,
grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
sjg-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org,
grundler-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org,
naveenkrishna.ch-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org
Subject: Re: [PATCH v4] i2c: exynos5: add High Speed I2C controller driver
Date: Fri, 1 Feb 2013 20:29:23 +0100 [thread overview]
Message-ID: <20130201192923.GA23176@pengutronix.de> (raw)
In-Reply-To: <1359734084-10594-1-git-send-email-ch.naveen-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
[-- Attachment #1: Type: text/plain, Size: 1254 bytes --]
On Fri, Feb 01, 2013 at 09:24:44PM +0530, Naveen Krishna Chatradhi wrote:
> Adds support for High Speed I2C driver found in Exynos5 and later
> SoCs from Samsung. This driver currently supports Auto mode.
>
> Driver only supports Device Tree method.
> Note: Added debugfs support for registers view, not tested.
>
> Signed-off-by: Taekgyun Ko <taeggyun.ko-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
> Signed-off-by: Naveen Krishna Chatradhi <ch.naveen-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
> ---
> Help please,
>
> Usual reads and writes are happening. But, when i try doing
> i2cdetect -y 0 0x10 0x59; It throws me continous interrupts at 0x1a
> i2cdetect -y 0 0x50 0x64; It throws me continous interrupts at 0x63
>
> There are eeproms from 0x50 till 0x58
> wm8994 codec at 0x1a
>
> Kindly, can anyone explain this behaviour.
You select I2C_FUNC_SMBUS_EMUL, but make sure your hardware really
supports I2C_FUNC_SMBUS_QUICK. That would be my first guess. Also, which
eeprom do you have? Check its datasheet, some in deed use 8 addresses.
Regards,
Wolfram
--
Pengutronix e.K. | Wolfram Sang |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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next prev parent reply other threads:[~2013-02-01 19:29 UTC|newest]
Thread overview: 113+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-27 13:00 [PATCH 0/3] i2c: Add High speed I2C controller driver for Exynos5 Naveen Krishna Chatradhi
2012-11-27 13:00 ` Naveen Krishna Chatradhi
2012-11-27 13:00 ` [PATCH 1/3] i2c: exynos5: add High Speed I2C controller driver Naveen Krishna Chatradhi
2012-11-27 13:00 ` Naveen Krishna Chatradhi
2012-11-27 13:23 ` Felipe Balbi
2012-11-27 13:23 ` Felipe Balbi
2012-11-27 13:23 ` Felipe Balbi
2012-11-27 13:34 ` Thomas Abraham
2012-11-27 13:34 ` Thomas Abraham
2012-11-27 13:34 ` Thomas Abraham
2012-11-28 4:23 ` Naveen Krishna Ch
2012-11-28 4:23 ` Naveen Krishna Ch
2012-11-28 4:23 ` Naveen Krishna Ch
2012-12-25 11:25 ` [PATCH 1/2] " Naveen Krishna Chatradhi
2012-12-25 11:25 ` Naveen Krishna Chatradhi
2012-12-25 11:25 ` Naveen Krishna Chatradhi
2012-12-25 11:25 ` [PATCH 2/2] i2c-exynos5: add debugfs support for registers Naveen Krishna Chatradhi
2012-12-25 11:25 ` Naveen Krishna Chatradhi
2012-12-25 11:25 ` Naveen Krishna Chatradhi
2012-12-27 22:57 ` Felipe Balbi
2012-12-27 22:57 ` Felipe Balbi
2012-12-27 22:57 ` Felipe Balbi
2012-12-27 22:59 ` Felipe Balbi
2012-12-27 22:59 ` Felipe Balbi
2012-12-27 22:59 ` Felipe Balbi
2012-12-27 22:57 ` [PATCH 1/2] i2c: exynos5: add High Speed I2C controller driver Felipe Balbi
2012-12-27 22:57 ` Felipe Balbi
2012-12-27 22:57 ` Felipe Balbi
2012-12-28 6:42 ` Naveen Krishna Ch
2012-12-28 6:42 ` Naveen Krishna Ch
2012-12-28 11:27 ` [PATCH v3] " Naveen Krishna Chatradhi
2012-12-28 11:27 ` Naveen Krishna Chatradhi
2012-12-28 11:27 ` Naveen Krishna Chatradhi
2012-12-28 16:36 ` Naveen Krishna Ch
2012-12-28 16:36 ` Naveen Krishna Ch
2012-12-28 16:36 ` Naveen Krishna Ch
2013-01-15 6:23 ` Naveen Krishna Ch
2013-01-15 6:23 ` Naveen Krishna Ch
2013-01-23 5:05 ` Naveen Krishna Ch
2013-01-23 5:05 ` Naveen Krishna Ch
2013-01-23 5:05 ` Naveen Krishna Ch
2013-02-01 15:54 ` [PATCH v4] " Naveen Krishna Chatradhi
2013-02-01 15:54 ` Naveen Krishna Chatradhi
2013-02-01 19:29 ` Wolfram Sang [this message]
2013-02-01 19:29 ` Wolfram Sang
2013-02-08 13:16 ` Grant Likely
2013-03-12 4:32 ` [PATCH] " Naveen Krishna Chatradhi
[not found] ` <1363062732-27869-1-git-send-email-ch.naveen-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2013-03-12 12:53 ` Simon Glass
2013-03-12 13:13 ` Simon Glass
2013-03-12 13:13 ` Simon Glass
2013-03-20 16:26 ` Naveen Krishna Ch
2013-03-20 16:26 ` Naveen Krishna Ch
2013-03-20 16:24 ` [RFC: PATCH v5] " Naveen Krishna Chatradhi
2013-03-20 16:24 ` Naveen Krishna Chatradhi
2013-03-25 11:52 ` Yuvaraj CD
2013-03-26 9:23 ` Wolfram Sang
2013-03-28 22:01 ` [PATCH v6] " Naveen Krishna Chatradhi
2013-03-28 23:40 ` Naveen Krishna Chatradhi
2013-03-28 23:40 ` Naveen Krishna Chatradhi
2013-04-05 4:52 ` [PATCH v7] " Naveen Krishna Chatradhi
2013-04-13 4:40 ` Naveen Krishna Ch
2013-04-13 4:40 ` Naveen Krishna Ch
2013-04-16 10:29 ` Wolfram Sang
[not found] ` <CAHfPSqCe_VJMeH3oCDc0CfcmpawMj0hN7_b3ngHDFtDUsPJLsA@mail.gmail.com>
2013-05-01 23:19 ` Fwd: " Naveen Krishna Ch
2013-05-01 23:19 ` Naveen Krishna Ch
2013-05-02 11:27 ` Wolfram Sang
2013-05-02 11:27 ` Wolfram Sang
2013-05-02 11:48 ` Naveen Krishna Ch
2013-05-02 11:48 ` Naveen Krishna Ch
2013-05-07 2:50 ` [PATCH v8] " Naveen Krishna Chatradhi
2013-05-07 2:50 ` Naveen Krishna Chatradhi
2013-05-07 12:06 ` Sachin Kamat
2013-05-17 10:10 ` [PATCH v9] " Naveen Krishna Chatradhi
2013-05-17 10:10 ` Naveen Krishna Chatradhi
2013-05-23 6:29 ` Naveen Krishna Ch
2013-05-23 6:29 ` Naveen Krishna Ch
[not found] ` <1368785452-15140-1-git-send-email-ch.naveen-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2013-06-10 8:07 ` Naveen Krishna Ch
2013-06-10 8:10 ` Naveen Krishna Ch
2013-06-10 8:10 ` Naveen Krishna Ch
2013-06-10 14:38 ` Wolfram Sang
2013-06-19 10:48 ` [PATCH v10] " Naveen Krishna Chatradhi
2013-06-19 10:48 ` Naveen Krishna Chatradhi
2013-06-19 10:48 ` Naveen Krishna Chatradhi
2013-07-01 6:17 ` Wolfram Sang
2013-07-01 6:17 ` Wolfram Sang
2013-07-01 6:17 ` Wolfram Sang
2013-07-01 10:25 ` Tomasz Figa
2013-07-01 10:25 ` Tomasz Figa
2013-07-01 10:25 ` Tomasz Figa
2013-08-15 13:12 ` Wolfram Sang
2013-08-15 13:12 ` Wolfram Sang
2013-08-16 4:58 ` Naveen Krishna Ch
2013-08-16 4:58 ` Naveen Krishna Ch
2013-08-16 4:58 ` Naveen Krishna Ch
2013-08-16 7:05 ` Wolfram Sang
2013-08-16 7:05 ` Wolfram Sang
2013-08-16 7:05 ` Wolfram Sang
2013-08-21 9:24 ` [PATCH] " Naveen Krishna Chatradhi
2013-08-21 9:24 ` Naveen Krishna Chatradhi
2013-09-08 17:03 ` Wolfram Sang
2013-09-08 17:03 ` Wolfram Sang
2013-10-11 11:43 ` Naveen Krishna Ch
2013-10-11 11:43 ` Naveen Krishna Ch
2013-10-16 5:30 ` [PATCH v12] " Naveen Krishna Chatradhi
2013-10-25 11:47 ` Naveen Krishna Ch
2013-10-25 11:47 ` Naveen Krishna Ch
2013-11-01 11:35 ` Wolfram Sang
2012-11-27 13:00 ` [PATCH 2/3] ARM: exynos5: Add gate clocks for HS-I2C Naveen Krishna Chatradhi
2012-11-27 13:00 ` Naveen Krishna Chatradhi
2012-11-27 13:00 ` Naveen Krishna Chatradhi
2012-11-27 13:00 ` [PATCH 3/3] arm: exynos5: Add HS-I2C device tree platform information Naveen Krishna Chatradhi
2012-11-27 13:00 ` Naveen Krishna Chatradhi
2012-11-27 13:00 ` Naveen Krishna Chatradhi
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