linux-kernel - Re: [PATCH v3 3/5] usb: typec: tcpci_rt1711h: Add rxdz_sel variable to struct rt1711h_chip

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ZPrf/IVuVRU6Y1S8@kuha.fi.intel.com>
Date:   Fri, 8 Sep 2023 11:49:00 +0300
From:   Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:     Biju Das <biju.das.jz@...renesas.com>
Cc:     Guenter Roeck <linux@...ck-us.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Biju Das <biju.das.au@...il.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: Re: [PATCH v3 3/5] usb: typec: tcpci_rt1711h: Add rxdz_sel variable
 to struct rt1711h_chip_info

On Wed, Sep 06, 2023 at 09:06:17AM +0100, Biju Das wrote:
> The RT1715 needs 0.35V/0.75V rx threshold for rd/rp whereas it is 0.4V/0.7V
> for RT1711H. Add rxdz_sel variable to struct rt1711h_chip_info for
> handling this difference.
> 
> Signed-off-by: Biju Das <biju.das.jz@...renesas.com>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

Reviewed-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

> ---
> v2->v3:
>  * Added Rb tag from Andy.
> v1->v2:
>  * Swapped the rxdz_sel variable in struct rt1711h_chip_info to avoid
>    holes.
> ---
>  drivers/usb/typec/tcpm/tcpci_rt1711h.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
> index 2b7258d3cb4e..40822bae9ae8 100644
> --- a/drivers/usb/typec/tcpm/tcpci_rt1711h.c
> +++ b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
> @@ -52,6 +52,7 @@
>  #define BMCIO_RXDZEN	BIT(0)
>  
>  struct rt1711h_chip_info {
> +	u32 rxdz_sel;
>  	u16 did;
>  };
>  
> @@ -204,10 +205,7 @@ static inline int rt1711h_init_cc_params(struct rt1711h_chip *chip, u8 status)
>  	if ((cc1 >= TYPEC_CC_RP_1_5 && cc2 < TYPEC_CC_RP_DEF) ||
>  	    (cc2 >= TYPEC_CC_RP_1_5 && cc1 < TYPEC_CC_RP_DEF)) {
>  		rxdz_en = BMCIO_RXDZEN;
> -		if (chip->info->did == RT1715_DID)
> -			rxdz_sel = RT1711H_BMCIO_RXDZSEL;
> -		else
> -			rxdz_sel = 0;
> +		rxdz_sel = chip->info->rxdz_sel;
>  	} else {
>  		rxdz_en = 0;
>  		rxdz_sel = RT1711H_BMCIO_RXDZSEL;
> @@ -400,6 +398,7 @@ static const struct rt1711h_chip_info rt1711h = {
>  };
>  
>  static const struct rt1711h_chip_info rt1715 = {
> +	.rxdz_sel = RT1711H_BMCIO_RXDZSEL,
>  	.did = RT1715_DID,
>  };
>  
> -- 
> 2.25.1

-- 
heikki