From: Bryan Wu <cooloney@gmail.com>
To: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Linux LED Subsystem <linux-leds@vger.kernel.org>,
"rpurdie@rpsys.net" <rpurdie@rpsys.net>
Subject: Re: [PATCH 2/2] leds:pca963x: Always initialize MODE2 register
Date: Wed, 2 Jul 2014 16:42:29 -0700 [thread overview]
Message-ID: <CAK5ve-+9eP=k4UHDGD2FX6NOOSWMHitq1zFLoffeedA6vBWjNg@mail.gmail.com> (raw)
In-Reply-To: <1404288046-26661-2-git-send-email-pmeerw@pmeerw.net>
On Wed, Jul 2, 2014 at 1:00 AM, Peter Meerwald <pmeerw@pmeerw.net> wrote:
> From: Peter Meerwald <p.meerwald@bct-electronic.com>
>
> PCA9632 defaults to open-drain
> PCA9633/4/5 defaults to totem-pole
>
> the driver assumed that totem-pole default and didn't actively set
> the value; the MODE2 register is now written if platform
> data indicating the mode is given
>
This one looks good to me.
-Bryan
> Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
> ---
> drivers/leds/leds-pca963x.c | 10 +++++++---
> 1 file changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/leds/leds-pca963x.c b/drivers/leds/leds-pca963x.c
> index 70e3825..2214648 100644
> --- a/drivers/leds/leds-pca963x.c
> +++ b/drivers/leds/leds-pca963x.c
> @@ -423,9 +423,13 @@ static int pca963x_probe(struct i2c_client *client,
> /* Disable LED all-call address and set normal mode */
> i2c_smbus_write_byte_data(client, PCA963X_MODE1, 0x00);
>
> - /* Configure output: open-drain or totem pole (push-pull) */
> - if (pdata && pdata->outdrv == PCA963X_OPEN_DRAIN)
> - i2c_smbus_write_byte_data(client, PCA963X_MODE2, 0x01);
> + if (pdata) {
> + /* Configure output: open-drain or totem pole (push-pull) */
> + if (pdata->outdrv == PCA963X_OPEN_DRAIN)
> + i2c_smbus_write_byte_data(client, PCA963X_MODE2, 0x01);
> + else
> + i2c_smbus_write_byte_data(client, PCA963X_MODE2, 0x05);
> + }
>
> return 0;
>
> --
> 1.7.9.5
>
next prev parent reply other threads:[~2014-07-02 23:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-02 8:00 [PATCH 1/2] leds:pca963x: Add support for PCA9635 LED driver chip Peter Meerwald
2014-07-02 8:00 ` [PATCH 2/2] leds:pca963x: Always initialize MODE2 register Peter Meerwald
2014-07-02 23:42 ` Bryan Wu [this message]
2014-07-02 8:00 ` [PATCH 3/3] leds:pca963x: Update for PCA9635 and correct statement about MODE2 OUTDRV default Peter Meerwald
2014-07-02 23:44 ` Bryan Wu
2014-07-02 23:40 ` [PATCH 1/2] leds:pca963x: Add support for PCA9635 LED driver chip Bryan Wu
2014-07-03 5:38 ` Peter Meerwald
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