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a="3261549" X-IronPort-AV: E=Sophos;i="6.27,207,1787036400"; d="scan'208";a="3261549" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Nov 2026 06:05:17 -0800 X-CSE-ConnectionGUID: oT9Cbor5Qni6BQCUdyKTLg== X-CSE-MsgGUID: 0F6K0J6gQBqAceNzhSvsFg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,207,1787036400"; d="scan'208";a="8999654" Received: from black.igk.intel.com ([10.91.253.5]) by fmviesa010.fm.intel.com with ESMTP; 11 Nov 2026 06:05:16 -0800 Received: by black.igk.intel.com (Postfix, from userid 1008) id 25CCF99; Wed, 11 Nov 2026 15:05:14 +0100 (CET) Date: Wed, 11 Nov 2026 15:05:14 +0100 From: Heikki Krogerus To: Daniel Baluta Cc: badhri@google.com, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, stefan.ghetu@nxp.com, imx@lists.linux.dev, Li Jun Subject: Re: [PATCH] usb: typec: tcpm: allow external charger detection to set USB_TYPE Message-ID: References: <20261106115742.730704-1-daniel.baluta@nxp.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261106115742.730704-1-daniel.baluta@nxp.com> On Fri, Nov 06, 2026 at 01:57:41PM +0200, Daniel Baluta wrote: > From: Li Jun > > Teach tcpm_psy_set_prop() to accept writes of > POWER_SUPPLY_PROP_USB_TYPE and store the value in port->usb_type, and > advertise the BC1.2 USB types (SDP/DCP/CDP/ACA) in > psy_desc.usb_types so power_supply_set_property() callers are not > rejected by power_supply_has_property(). > > This is a prerequisite for a follow-up PHY charger-detection driver > that calls power_supply_set_property() on the tcpm-backed power > supply once it determines the attached BC1.2 charger type. > > Signed-off-by: Li Jun > Signed-off-by: Daniel Baluta Acked-by: Heikki Krogerus > --- > drivers/usb/typec/tcpm/tcpm.c | 10 +++++++++- > 1 file changed, 9 insertions(+), 1 deletion(-) > > diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c > index d721baef52104..24f4e8854f37f 100644 > --- a/drivers/usb/typec/tcpm/tcpm.c > +++ b/drivers/usb/typec/tcpm/tcpm.c > @@ -8766,6 +8766,10 @@ static int tcpm_psy_set_prop(struct power_supply *psy, > case POWER_SUPPLY_PROP_CURRENT_NOW: > ret = tcpm_aug_set_op_curr(port, val->intval / 1000); > break; > + case POWER_SUPPLY_PROP_USB_TYPE: > + port->usb_type = val->intval; > + ret = 0; > + break; > default: > ret = -EINVAL; > break; > @@ -8807,7 +8811,11 @@ static int devm_tcpm_psy_register(struct tcpm_port *port) > port_dev_name); > port->psy_desc.name = psy_name; > port->psy_desc.type = POWER_SUPPLY_TYPE_USB; > - port->psy_desc.usb_types = BIT(POWER_SUPPLY_USB_TYPE_C) | > + port->psy_desc.usb_types = BIT(POWER_SUPPLY_USB_TYPE_SDP) | > + BIT(POWER_SUPPLY_USB_TYPE_DCP) | > + BIT(POWER_SUPPLY_USB_TYPE_CDP) | > + BIT(POWER_SUPPLY_USB_TYPE_ACA) | > + BIT(POWER_SUPPLY_USB_TYPE_C) | > BIT(POWER_SUPPLY_USB_TYPE_PD) | > BIT(POWER_SUPPLY_USB_TYPE_PD_PPS) | > BIT(POWER_SUPPLY_USB_TYPE_PD_PPS_SPR_AVS) | > -- > 2.45.2 -- heikki