linux-kernel - PTP clock driver for FSL DPAA

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Message-ID: <DB6PR0401MB253642900DF5055FC8E7221FF8940@DB6PR0401MB2536.eurprd04.prod.outlook.com>
Date:   Tue, 22 May 2018 10:13:09 +0000
From:   "Y.b. Lu" <yangbo.lu@....com>
To:     Richard Cochran <richardcochran@...il.com>
CC:     Madalin-cristian Bucur <madalin.bucur@....com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Xiaobo Xie <xiaobo.xie@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: PTP clock driver for FSL DPAA

Hi Richard,

I'm going to make a PTP clock driver patch for FSL DPAA ethernet controller. (drivers/net/ethernet/freescale/dpaa/)
Actually the 1588 timer module on FSL DPAA is same with the one on FSL eTSEC in hardware.(whose PTP clock driver is drivers/net/ethernet/freescale/gianfar_ptp.c)

So there are two options for me I think.
Option #1, just make a dpaa_ptp.c driver which will be almost same with gianfar_ptp.c.
Option #2, try to reuse gianfar_ptp.c driver by reworking it as a common driver, renaming it, and putting it to a common place (drivers/ptp/ or still drivers/net/ethernet/freescale/).

I'd like to ask your suggestion.
Thanks a lot.

Best regards,
Yangbo Lu