Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752767AbdIAVt3 (ORCPT ); Fri, 1 Sep 2017 17:49:29 -0400 Received: from mx1.redhat.com ([209.132.183.28]:40872 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752704AbdIAVtY (ORCPT ); Fri, 1 Sep 2017 17:49:24 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 8782313A53 Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=hdegoede@redhat.com From: Hans de Goede To: MyungJoo Ham , Chanwoo Choi , Guenter Roeck , Heikki Krogerus , Darren Hart , Andy Shevchenko , Peter Rosin , Mathias Nyman Cc: Hans de Goede , platform-driver-x86@vger.kernel.org, devel@driverdev.osuosl.org, Kuppuswamy Sathyanarayanan , Sathyanarayanan Kuppuswamy Natarajan , linux-kernel@vger.kernel.org, Greg Kroah-Hartman , linux-usb@vger.kernel.org Subject: [PATCH 08/11] staging: typec: tcpm: Set mux to device mode when configured as such Date: Fri, 1 Sep 2017 23:48:42 +0200 Message-Id: <20170901214845.7153-9-hdegoede@redhat.com> In-Reply-To: <20170901214845.7153-1-hdegoede@redhat.com> References: <20170901214845.7153-1-hdegoede@redhat.com> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Fri, 01 Sep 2017 21:49:24 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3308 Lines: 87 Setting the mux to TYPEC_MUX_NONE, TCPC_USB_SWITCH_DISCONNECT when the data-role is device is not correct. Plenty of devices support operating as USB device through a (separate) USB device controller. So this commit instead splits out TYPEC_MUX_USB into TYPEC_MUX_USB_HOST and TYPEC_MUX_USB_DEVICE and makes tcpm_set_roles() set the mux accordingly. Likewise TCPC_MUX_DP gets renamed to TCPC_MUX_DP_SRC to make clear that this is for configuring the Type-C port as a Display Port source, not a sink. Last this commit makes tcpm_reset_port() to set the mux to TYPEC_MUX_NONE, TCPC_USB_SWITCH_DISCONNECT so that it does not and up staying in host (and with this commit also device) mode after a detach. Signed-off-by: Hans de Goede --- drivers/staging/typec/tcpm.c | 7 ++++--- drivers/staging/typec/tcpm.h | 22 ++++++++++++++-------- 2 files changed, 18 insertions(+), 11 deletions(-) diff --git a/drivers/staging/typec/tcpm.c b/drivers/staging/typec/tcpm.c index 8af62e74d54c..ffe7e26d4ed3 100644 --- a/drivers/staging/typec/tcpm.c +++ b/drivers/staging/typec/tcpm.c @@ -752,11 +752,11 @@ static int tcpm_set_roles(struct tcpm_port *port, bool attached, int ret; if (data == TYPEC_HOST) - ret = tcpm_mux_set(port, TYPEC_MUX_USB, + ret = tcpm_mux_set(port, TYPEC_MUX_USB_HOST, TCPC_USB_SWITCH_CONNECT); else - ret = tcpm_mux_set(port, TYPEC_MUX_NONE, - TCPC_USB_SWITCH_DISCONNECT); + ret = tcpm_mux_set(port, TYPEC_MUX_USB_DEVICE, + TCPC_USB_SWITCH_CONNECT); if (ret < 0) return ret; @@ -2025,6 +2025,7 @@ static void tcpm_reset_port(struct tcpm_port *port) tcpm_init_vconn(port); tcpm_set_current_limit(port, 0, 0); tcpm_set_polarity(port, TYPEC_POLARITY_CC1); + tcpm_mux_set(port, TYPEC_MUX_NONE, TCPC_USB_SWITCH_DISCONNECT); tcpm_set_attached_state(port, false); port->try_src_count = 0; port->try_snk_count = 0; diff --git a/drivers/staging/typec/tcpm.h b/drivers/staging/typec/tcpm.h index 7e9a6b7b5cd6..f662eed48c86 100644 --- a/drivers/staging/typec/tcpm.h +++ b/drivers/staging/typec/tcpm.h @@ -83,17 +83,23 @@ enum tcpc_usb_switch { }; /* Mux state attributes */ -#define TCPC_MUX_USB_ENABLED BIT(0) /* USB enabled */ -#define TCPC_MUX_DP_ENABLED BIT(1) /* DP enabled */ -#define TCPC_MUX_POLARITY_INVERTED BIT(2) /* Polarity inverted */ +#define TCPC_MUX_USB_DEVICE_ENABLED BIT(0) /* USB device enabled */ +#define TCPC_MUX_USB_HOST_ENABLED BIT(1) /* USB host enabled */ +#define TCPC_MUX_DP_SRC_ENABLED BIT(2) /* DP enabled */ +#define TCPC_MUX_POLARITY_INVERTED BIT(3) /* Polarity inverted */ /* Mux modes, decoded to attributes */ enum tcpc_mux_mode { - TYPEC_MUX_NONE = 0, /* Open switch */ - TYPEC_MUX_USB = TCPC_MUX_USB_ENABLED, /* USB only */ - TYPEC_MUX_DP = TCPC_MUX_DP_ENABLED, /* DP only */ - TYPEC_MUX_DOCK = TCPC_MUX_USB_ENABLED | /* Both USB and DP */ - TCPC_MUX_DP_ENABLED, + /* Open switch */ + TYPEC_MUX_NONE = 0, + /* USB device only */ + TYPEC_MUX_USB_DEVICE = TCPC_MUX_USB_DEVICE_ENABLED, + /* USB host only */ + TYPEC_MUX_USB_HOST = TCPC_MUX_USB_HOST_ENABLED, + /* DP source only */ + TYPEC_MUX_DP = TCPC_MUX_DP_SRC_ENABLED, + /* Both USB host and DP source */ + TYPEC_MUX_DOCK = TCPC_MUX_USB_HOST_ENABLED | TCPC_MUX_DP_SRC_ENABLED, }; struct tcpc_mux_dev { -- 2.13.5