linux-kernel - Re: [PATCH 3/3] arm64: dts: ti: k3-j7200-som-p0: Add nodes for OSPI0

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Date:   Tue, 2 Mar 2021 17:35:20 +0530
From:   Pratyush Yadav <p.yadav@...com>
To:     Vignesh Raghavendra <vigneshr@...com>
CC:     Nishanth Menon <nm@...com>, Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] arm64: dts: ti: k3-j7200-som-p0: Add nodes for OSPI0

On 02/03/21 01:10PM, Vignesh Raghavendra wrote:
> 
> 
> On 3/2/21 1:28 AM, Pratyush Yadav wrote:
> > +
> > +	mcu_fss0_ospi0_pins_default: mcu-fss0-ospi0-pins-default {
> > +		pinctrl-single,pins = <
> > +			J721E_WKUP_IOPAD(0x0000, PIN_OUTPUT, 0) /* MCU_OSPI0_CLK */
> > +			J721E_WKUP_IOPAD(0x002c, PIN_OUTPUT, 0) /* MCU_OSPI0_CSn0 */
> > +			J721E_WKUP_IOPAD(0x000c, PIN_INPUT, 0)  /* MCU_OSPI0_D0 */
> > +			J721E_WKUP_IOPAD(0x0010, PIN_INPUT, 0)  /* MCU_OSPI0_D1 */
> > +			J721E_WKUP_IOPAD(0x0014, PIN_INPUT, 0)  /* MCU_OSPI0_D2 */
> > +			J721E_WKUP_IOPAD(0x0018, PIN_INPUT, 0)  /* MCU_OSPI0_D3 */
> > +			J721E_WKUP_IOPAD(0x001c, PIN_INPUT, 0)  /* MCU_OSPI0_D4 */
> > +			J721E_WKUP_IOPAD(0x0020, PIN_INPUT, 0)  /* MCU_OSPI0_D5 */
> > +			J721E_WKUP_IOPAD(0x0024, PIN_INPUT, 0)  /* MCU_OSPI0_D6 */
> > +			J721E_WKUP_IOPAD(0x0028, PIN_INPUT, 0)  /* MCU_OSPI0_D7 */
> > +			J721E_WKUP_IOPAD(0x0008, PIN_INPUT_PULLDOWN, 0)  /* MCU_OSPI0_DQS */
> > +		>;
> > +	};
> 
> There is a pulldown resistor on the board right? So, internal pulldown
> is unnecessary and may even cause conflicts.

Right. Will fix.

-- 
Regards,
Pratyush Yadav
Texas Instruments Inc.