From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: "Menon, Nishanth" <nm@ti.com>
Cc: Tony Lindgren <tony@atomide.com>,
linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2] ARM: OMAP4: twl-common: Support for additional devices on i2c1 bus
Date: Fri, 13 Jul 2012 12:20:38 +0200 [thread overview]
Message-ID: <4FFFF676.1090304@ti.com> (raw)
In-Reply-To: <CAOMWX4e81gKYa_j8DHE_dn06+JfLwfEPuyj5kYVmDUBdG0n-1A@mail.gmail.com>
On 07/13/2012 12:14 PM, Menon, Nishanth wrote:
> We still need a way to switch to I2C highspeed mode
> omap4_pmic_init still does register in 400KHz mode, while setting a bit in 6040
> should let us talk 3.3MHz on the bus.
We need to have a way to do this runtime I think. The twl6040 comes up with
100kbps as a default speed. So far we had no issue with 400kbps bus, but if we
increase it we might not be able to communicate with twl6040...
--
Péter
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WARNING: multiple messages have this Message-ID (diff)
From: peter.ujfalusi@ti.com (Peter Ujfalusi)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] ARM: OMAP4: twl-common: Support for additional devices on i2c1 bus
Date: Fri, 13 Jul 2012 12:20:38 +0200 [thread overview]
Message-ID: <4FFFF676.1090304@ti.com> (raw)
In-Reply-To: <CAOMWX4e81gKYa_j8DHE_dn06+JfLwfEPuyj5kYVmDUBdG0n-1A@mail.gmail.com>
On 07/13/2012 12:14 PM, Menon, Nishanth wrote:
> We still need a way to switch to I2C highspeed mode
> omap4_pmic_init still does register in 400KHz mode, while setting a bit in 6040
> should let us talk 3.3MHz on the bus.
We need to have a way to do this runtime I think. The twl6040 comes up with
100kbps as a default speed. So far we had no issue with 400kbps bus, but if we
increase it we might not be able to communicate with twl6040...
--
P?ter
next prev parent reply other threads:[~2012-07-13 10:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-13 8:38 [PATCH v2] ARM: OMAP4: twl-common: Support for additional devices on i2c1 bus Peter Ujfalusi
2012-07-13 8:38 ` Peter Ujfalusi
2012-07-13 10:14 ` Menon, Nishanth
2012-07-13 10:14 ` Menon, Nishanth
2012-07-13 10:20 ` Peter Ujfalusi [this message]
2012-07-13 10:20 ` Peter Ujfalusi
2012-07-23 8:47 ` Peter Ujfalusi
2012-07-23 8:47 ` Peter Ujfalusi
2012-08-07 7:20 ` Tony Lindgren
2012-08-07 7:20 ` Tony Lindgren
2012-08-07 7:47 ` Peter Ujfalusi
2012-08-07 7:47 ` Peter Ujfalusi
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