From: Andrew Lunn <andrew@lunn.ch>
To: Harini Katakam <harini.katakam@xilinx.com>
Cc: nicolas.ferre@microchip.com, davem@davemloft.net,
claudiu.beznea@microchip.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, michal.simek@xilinx.com,
harinikatakamlinux@gmail.com, Harini Katakam <harinik@xilinx.com>,
Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>,
Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
Subject: Re: [PATCH v2 1/4] net: macb: Check MDIO state before read/write and use timeouts
Date: Mon, 26 Nov 2018 15:39:41 +0100 [thread overview]
Message-ID: <20181126143941.GB12116@lunn.ch> (raw)
In-Reply-To: <1543216072-9623-2-git-send-email-harini.katakam@xilinx.com>
On Mon, Nov 26, 2018 at 12:37:49PM +0530, Harini Katakam wrote:
> From: Harini Katakam <harinik@xilinx.com>
>
> Replace the while loop in MDIO read/write functions with a timeout.
> In addition, add a check for MDIO bus busy before initiating a new
> operation as well to make sure there is no ongoing MDIO operation.
>
> Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
> Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@xilinx.com>
> Signed-off-by: Harini Katakam <harinik@xilinx.com>
> ---
> v2 changes:
> Use readx_poll_timeout
>
> Changes form RFC:
> Cleaned up timeout implementation and moved it to a helper.
>
> drivers/net/ethernet/cadence/macb.h | 3 +++
> drivers/net/ethernet/cadence/macb_main.c | 33 ++++++++++++++++++++++++++------
> 2 files changed, 30 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h
> index 3d45f4c..df7bee1 100644
> --- a/drivers/net/ethernet/cadence/macb.h
> +++ b/drivers/net/ethernet/cadence/macb.h
> @@ -714,6 +714,9 @@
> __v; \
> })
>
> +#define MACB_IDLE_MASK (1 << MACB_IDLE_OFFSET)
I think you could use the MACB_BIT() macro here.
But otherwise,
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
next prev parent reply other threads:[~2018-11-26 14:39 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-26 7:07 [PATCH v2 0/4] Macb power management support for ZynqMP Harini Katakam
2018-11-26 7:07 ` [PATCH v2 1/4] net: macb: Check MDIO state before read/write and use timeouts Harini Katakam
2018-11-26 14:39 ` Andrew Lunn [this message]
2018-11-27 5:38 ` Harini Katakam
2018-11-26 14:46 ` Claudiu.Beznea
2018-11-26 14:52 ` Andrew Lunn
2018-11-27 5:36 ` Harini Katakam
2018-11-27 10:25 ` Claudiu.Beznea
2018-11-27 10:49 ` Harini Katakam
2018-11-28 0:35 ` Andrew Lunn
2018-11-29 10:21 ` Claudiu.Beznea
2018-11-26 7:07 ` [PATCH v2 2/4] net: macb: Support clock management for tsu_clk Harini Katakam
2018-11-26 7:07 ` [PATCH v2 3/4] net: macb: Add pm runtime support Harini Katakam
2018-11-26 14:47 ` Andrew Lunn
2018-11-26 14:47 ` Claudiu.Beznea
2018-11-26 7:07 ` [PATCH v2 4/4] net: macb: Add support for suspend/resume with full power down Harini Katakam
2018-11-26 14:46 ` Claudiu.Beznea
2018-11-27 6:25 ` Harini Katakam
2018-11-27 10:31 ` Claudiu.Beznea
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