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From: Wolfram Sang <wsa@the-dreams.de>
To: Bjorn Ardo <bjorn.ardo@axis.com>
Cc: "Patrick Williams" <alpawi@amazon.com>,
	"Björn Ardö" <bjornar@axis.com>,
	"Patrick Williams" <patrick@stwcx.xyz>,
	linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] i2c: slave-eeprom: initialize empty eeprom properly
Date: Mon, 20 Apr 2020 18:43:49 +0200	[thread overview]
Message-ID: <20200420164349.GD3721@ninjato> (raw)
In-Reply-To: <150599be-9125-4ab9-e2a6-e792b41910e6@axis.com>

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On Wed, Oct 02, 2019 at 08:20:53AM +0200, Bjorn Ardo wrote:
> Hi,
> 
> 
> I sent in another patch earlier that added support for specifying a file in
> devicetree to initilize the eeprom from, corresponding to the case of
> pre-flashed eeprom. Maybe these two patches should be merged so this
> initialization is only done if no file is specified?

Yes, I agree.

> /BA
> 
> On 10/1/19 6:40 PM, Patrick Williams wrote:
> > The i2c-slave-eeprom driver emulates at24 class eeprom devices,
> > which come initialized with all 1s.  Do the same in the software
> > emulation.
> > 
> > Signed-off-by: Patrick Williams <alpawi@amazon.com>
> > ---
> >   drivers/i2c/i2c-slave-eeprom.c | 2 ++
> >   1 file changed, 2 insertions(+)
> > 
> > diff --git a/drivers/i2c/i2c-slave-eeprom.c b/drivers/i2c/i2c-slave-eeprom.c
> > index db9763cb4dae..efee56106251 100644
> > --- a/drivers/i2c/i2c-slave-eeprom.c
> > +++ b/drivers/i2c/i2c-slave-eeprom.c
> > @@ -131,6 +131,8 @@ static int i2c_slave_eeprom_probe(struct i2c_client *client, const struct i2c_de
> >   	if (!eeprom)
> >   		return -ENOMEM;
> > +	memset(eeprom->buffer, 0xFF, size);
> > +
> >   	eeprom->idx_write_cnt = 0;
> >   	eeprom->num_address_bytes = flag_addr16 ? 2 : 1;
> >   	eeprom->address_mask = size - 1;

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  reply	other threads:[~2020-04-20 16:43 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-01 16:40 [PATCH 1/2] i2c: slave-eeprom: initialize empty eeprom properly Patrick Williams
2019-10-01 16:40 ` [PATCH 2/2] i2c: slave-eeprom: support additional models Patrick Williams
2020-04-20 16:46   ` Wolfram Sang
2020-04-20 20:23     ` Patrick Williams
2019-10-02  6:20 ` [PATCH 1/2] i2c: slave-eeprom: initialize empty eeprom properly Bjorn Ardo
2020-04-20 16:43   ` Wolfram Sang [this message]
2020-04-20 20:24     ` Patrick Williams
2020-04-20 20:31     ` Patrick Williams
2020-04-20 20:53       ` Wolfram Sang
2020-04-21 12:03         ` Bjorn Ardo
2020-04-21 12:16           ` Wolfram Sang
2020-04-22  9:30             ` Bjorn Ardo
2020-04-22  9:36               ` Wolfram Sang
2020-04-24  9:06                 ` Bjorn Ardo

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