linux-kernel - Re: [PATCH 2/2] mfd: omap-usb-tll: Configure ULPIAUTOIDLE

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: <f1170557-5679-b9b9-5835-106e2dfb5673@ti.com>
Date:   Tue, 18 Apr 2017 11:31:20 +0300
From:   Roger Quadros <rogerq@...com>
To:     Tony Lindgren <tony@...mide.com>, Lee Jones <lee.jones@...aro.org>,
        Samuel Ortiz <sameo@...ux.intel.com>
CC:     <linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>,
        Felipe Balbi <felipe.balbi@...ux.intel.com>,
        Marcel Partap <mpartap@....net>,
        Michael Scott <michael.scott@...aro.org>,
        Sebastian Reichel <sre@...nel.org>
Subject: Re: [PATCH 2/2] mfd: omap-usb-tll: Configure ULPIAUTOIDLE

On 15/04/17 20:05, Tony Lindgren wrote:
> The idle mode needs to be only disabled for UTMIAUTOIDLE while
> ULPIAUTOIDLE can be enabled.
> 
> This matches the TLL_CHANNEL_CONF_i register configuration for ehci-tll
> in the Motorola Linux kernel tree for Wrigley 3G LTE modem on droid 4
> and the modem still stays responsive.
> 
> Cc: Felipe Balbi <felipe.balbi@...ux.intel.com>
> Cc: Keshava Munegowda <keshava_mgowda@...com>
> Cc: Marcel Partap <mpartap@....net>
> Cc: Michael Scott <michael.scott@...aro.org>
> Cc: Roger Quadros <rogerq@...com>
> Cc: Sebastian Reichel <sre@...nel.org>
> Signed-off-by: Tony Lindgren <tony@...mide.com>

Acked-by: Roger Quadros <rogerq@...com>

> ---
>  drivers/mfd/omap-usb-tll.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c
> --- a/drivers/mfd/omap-usb-tll.c
> +++ b/drivers/mfd/omap-usb-tll.c
> @@ -373,12 +373,13 @@ int omap_tll_init(struct usbhs_omap_platform_data *pdata)
>  			} else if (pdata->port_mode[i] ==
>  					OMAP_EHCI_PORT_MODE_TLL) {
>  				/*
> -				 * Disable AutoIdle, BitStuffing
> -				 * and use SDR Mode
> +				 * Disable UTMI AutoIdle, BitStuffing
> +				 * and use SDR Mode. Enable ULPI AutoIdle.
>  				 */
>  				reg &= ~(OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE
>  					| OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE);
>  				reg |= OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF;
> +				reg |= OMAP_TLL_CHANNEL_CONF_ULPI_ULPIAUTOIDLE;
>  			} else if (pdata->port_mode[i] ==
>  					OMAP_EHCI_PORT_MODE_HSIC) {
>  				/*
> 

cheers,
-roger