From: Marc Kleine-Budde <mkl@pengutronix.de>
To: Wenyou Yang <wenyou.yang@atmel.com>,
Wolfgang Grandegger <wg@grandegger.com>
Cc: linux-can@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
Nicolas Ferre <nicolas.ferre@atmel.com>
Subject: Re: [PATCH 1/2] can: m_can: Increase delay to ensure written INIT accepted
Date: Wed, 18 Nov 2015 11:25:56 +0100 [thread overview]
Message-ID: <564C5234.40708@pengutronix.de> (raw)
In-Reply-To: <1447841049-5010-2-git-send-email-wenyou.yang@atmel.com>
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On 11/18/2015 11:04 AM, Wenyou Yang wrote:
> Increase the delay time until the value written to INIT can be
> read back to ensure that the previous value written to INIT has
> been accepted.
>
> Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
The patch looks ok, can you please add to your commit message which SoCs
are affected by this problem.
> ---
>
> drivers/net/can/m_can/m_can.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
> index ef65517..fd1caa0 100644
> --- a/drivers/net/can/m_can/m_can.c
> +++ b/drivers/net/can/m_can/m_can.c
> @@ -320,7 +320,7 @@ static inline void m_can_config_endisable(const struct m_can_priv *priv,
> bool enable)
> {
> u32 cccr = m_can_read(priv, M_CAN_CCCR);
> - u32 timeout = 10;
> + u32 timeout = 1000;
> u32 val = 0;
>
> if (enable) {
>
Marc
--
Pengutronix e.K. | Marc Kleine-Budde |
Industrial Linux Solutions | Phone: +49-231-2826-924 |
Vertretung West/Dortmund | Fax: +49-5121-206917-5555 |
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next prev parent reply other threads:[~2015-11-18 10:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-18 10:04 [PATCH 0/2] can: m_can: Add CAN clock generated by UPLLCK support Wenyou Yang
2015-11-18 10:04 ` [PATCH 1/2] can: m_can: Increase delay to ensure written INIT accepted Wenyou Yang
2015-11-18 10:25 ` Marc Kleine-Budde [this message]
2015-11-19 4:25 ` Yang, Wenyou
2015-11-18 10:04 ` [PATCH 2/2] can: m_can: Add CAN clock generated by UPLLCK support Wenyou Yang
2015-11-18 10:23 ` Marc Kleine-Budde
2015-11-19 4:24 ` Yang, Wenyou
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