linux-kernel - Re: [PATCH 1/2] i2c: qcom-geni: Provide an option to select FIFO processing

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Date:   Wed, 4 Sep 2019 13:18:07 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Vinod Koul <vkoul@...nel.org>
Cc:     alokc@...eaurora.org, agross@...nel.org, robh+dt@...nel.org,
        mark.rutland@....com, bjorn.andersson@...aro.org,
        linux-i2c@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] i2c: qcom-geni: Provide an option to select FIFO
 processing

On Wed, 04 Sep 2019, Vinod Koul wrote:

> On 04-09-19, 12:36, Lee Jones wrote:
> > Signed-off-by: Lee Jones <lee.jones@...aro.org>
> > ---
> >  drivers/i2c/busses/i2c-qcom-geni.c | 14 ++++++++++----
> >  1 file changed, 10 insertions(+), 4 deletions(-)
> > 
> > diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c
> > index a89bfce5388e..dfdbce067827 100644
> > --- a/drivers/i2c/busses/i2c-qcom-geni.c
> > +++ b/drivers/i2c/busses/i2c-qcom-geni.c
> > @@ -353,13 +353,16 @@ static void geni_i2c_tx_fsm_rst(struct geni_i2c_dev *gi2c)
> >  static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg,
> >  				u32 m_param)
> >  {
> > +	struct device_node *np = gi2c->se.dev->of_node;
> >  	dma_addr_t rx_dma;
> >  	unsigned long time_left;
> > -	void *dma_buf;
> > +	void *dma_buf = NULL;
> >  	struct geni_se *se = &gi2c->se;
> >  	size_t len = msg->len;
> >  
> > -	dma_buf = i2c_get_dma_safe_msg_buf(msg, 32);
> > +	if (!of_property_read_bool(np, "qcom,geni-se-fifo"))
> 
> Where is this property documented, I dont see anything in linux-next for
> today

In this set. :)

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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