linux-kernel - Re: [PATCH 4.19 22/32] net: stmmac: dma channel control register need to be init first

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Date:   Tue, 4 Jun 2019 09:53:44 +0200
From:   Pavel Machek <pavel@...x.de>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        "Zhang, Baoli" <baoli.zhang@...el.com>,
        Ong Boon Leong <boon.leong.ong@...el.com>,
        Weifeng Voon <weifeng.voon@...el.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: [PATCH 4.19 22/32] net: stmmac: dma channel control register
 need to be init first

On Mon 2019-06-03 11:08:16, Greg Kroah-Hartman wrote:
> From: Weifeng Voon <weifeng.voon@...el.com>
> 
> stmmac_init_chan() needs to be called before stmmac_init_rx_chan() and
> stmmac_init_tx_chan(). This is because if PBLx8 is to be used,
> "DMA_CH(#i)_Control.PBLx8" needs to be set before programming
> "DMA_CH(#i)_TX_Control.TxPBL" and "DMA_CH(#i)_RX_Control.RxPBL".

This one misses upstream id, too. It is hash
af8f3fb7fb077c9df9fed97113a031e792163def .

Best regrads,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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