RE: [RESEND v6 06/13] spi: imx: fix ERR009165

[Robin Gong <yibin.gong@xxxxxxx>]

On 2020/03/10 Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx> wrote:
> 
> Hello,
> 
> On Tue, Mar 10, 2020 at 08:27:41AM +0000, Robin Gong wrote:
> > On 2020/03/10 Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote:
> > > On Tue, Mar 10, 2020 at 07:31:55PM +0800, Robin Gong wrote:
> > > >  	writel(ctrl, spi_imx->base + MX51_ECSPI_CTRL);
> > > >
> > > > @@ -612,12 +613,14 @@ static int mx51_ecspi_prepare_transfer(struct
> > > > spi_imx_data *spi_imx,
> > > >
> > > >  static void mx51_setup_wml(struct spi_imx_data *spi_imx)  {
> > > > +	u32 tx_wml = 0;
> > > > +
> > > >  	/*
> > > >  	 * Configure the DMA register: setup the watermark
> > > >  	 * and enable DMA request.
> > > >  	 */
> > > >  	writel(MX51_ECSPI_DMA_RX_WML(spi_imx->wml - 1) |
> > > > -		MX51_ECSPI_DMA_TX_WML(spi_imx->wml) |
> > > > +		MX51_ECSPI_DMA_TX_WML(tx_wml) |
> > >
> > > tx_wml is never assigned any other value than 0. Drop the variable.
> > That's prepared for 07/13 patch which may assign spi_imx->wml to tx_wml.
> 
> Then this belongs into patch 7, right?
Okay, understood your concern. Then I'll drop tx_wml to make it clear.
> 
> Best regards
> Uwe
> 
> --
> Pengutronix e.K.                           | Uwe Kleine-König
> |
> Industrial Linux Solutions                 |
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.p
> engutronix.de%2F&amp;data=02%7C01%7Cyibin.gong%40nxp.com%7Cca6f14
> 28f4224fa79f1d08d7c4ce4a41%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0
> %7C0%7C637194262606339591&amp;sdata=kI9HAyC%2FG3qmrIrLmfUDJ7dac
> %2FOEDBtDm4oeRyak1xE%3D&amp;reserved=0 |