From patchwork Wed May 24 12:29:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heikki Krogerus X-Patchwork-Id: 13253910 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1D115182C0 for ; Wed, 24 May 2023 12:29:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1684931343; x=1716467343; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=AUZv9YuPMG0nfqwZaGNsKXwlR4mFQTyLIv//QJk1Idw=; b=XJSdGAaF0NDNv6HeToYaWnHVbxIL31jhpPLWJZ0zVksmXR8Lzn9s17KA wYqE5UQVkhDRbRE9VmGJvFkLSQ1XSaBTyOsNp1OyMZ1FoMmM9I0E+MV7m YaIJjE0TD8YJvPwm3W6S98PtTY67LIECA1Hxu0Ta1spHc/YMxnUVgds+V Voi7TMDx/hWQ85lZ8yfTxx3wlGE2tcFaq3PP0CcwiPTCV2ueJkp4qR23N wyFTsn86hkB6PjKuoX5rv67z4FQNXGKfZIXm1OnqlGorQSv6ETLUqG71R c65J2M/CZpaBlagc1zlxZyCHwM2I+VVrY4Th3VnkVUwRhzeMm4IN3IeDH Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10720"; a="333904902" X-IronPort-AV: E=Sophos;i="6.00,189,1681196400"; d="scan'208";a="333904902" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 May 2023 05:29:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10720"; a="848731379" X-IronPort-AV: E=Sophos;i="6.00,189,1681196400"; d="scan'208";a="848731379" Received: from black.fi.intel.com (HELO black.fi.intel.com.) ([10.237.72.28]) by fmsmga001.fm.intel.com with ESMTP; 24 May 2023 05:29:00 -0700 From: Heikki Krogerus To: Greg Kroah-Hartman Cc: Bjorn Andersson , chrome-platform@lists.linux.dev, linux-usb@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 1/2] usb: typec: mux: Clean up mux_fwnode_match() Date: Wed, 24 May 2023 15:29:00 +0300 Message-Id: <20230524122901.53659-2-heikki.krogerus@linux.intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230524122901.53659-1-heikki.krogerus@linux.intel.com> References: <20230524122901.53659-1-heikki.krogerus@linux.intel.com> Precedence: bulk X-Mailing-List: chrome-platform@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Removing the "svid" and "accessory" device property checks. Those properties are not supported on any platform. Signed-off-by: Heikki Krogerus Link: https://lore.kernel.org/lkml/20230522215348.uoyboow26n2o3tel@ripper/ Cc: Bjorn Andersson Reviewed-by: Bjorn Andersson Tested-by: Bjorn Andersson --- drivers/usb/typec/mux.c | 55 ++++++----------------------------------- 1 file changed, 7 insertions(+), 48 deletions(-) diff --git a/drivers/usb/typec/mux.c b/drivers/usb/typec/mux.c index d9eaf9a0b0bfd..089c2fd478318 100644 --- a/drivers/usb/typec/mux.c +++ b/drivers/usb/typec/mux.c @@ -265,60 +265,19 @@ static int mux_fwnode_match(struct device *dev, const void *fwnode) static void *typec_mux_match(const struct fwnode_handle *fwnode, const char *id, void *data) { - const struct typec_altmode_desc *desc = data; struct device *dev; - bool match; - int nval; - u16 *val; - int ret; - int i; /* - * Check has the identifier already been "consumed". If it - * has, no need to do any extra connection identification. + * Device graph (OF graph) does not give any means to identify the + * device type or the device class of the remote port parent that @fwnode + * represents, so in order to identify the type or the class of @fwnode + * an additional device property is needed. With typec switches the + * property is named "orientation-switch" (@id). The value of the device + * property is ignored. */ - match = !id; - if (match) - goto find_mux; - - if (!desc) { - /* - * Accessory Mode muxes & muxes which explicitly specify - * the required identifier can avoid SVID matching. - */ - match = fwnode_property_present(fwnode, "accessory") || - fwnode_property_present(fwnode, id); - if (match) - goto find_mux; - return NULL; - } - - /* Alternate Mode muxes */ - nval = fwnode_property_count_u16(fwnode, "svid"); - if (nval <= 0) + if (id && !fwnode_property_present(fwnode, id)) return NULL; - val = kcalloc(nval, sizeof(*val), GFP_KERNEL); - if (!val) - return ERR_PTR(-ENOMEM); - - ret = fwnode_property_read_u16_array(fwnode, "svid", val, nval); - if (ret < 0) { - kfree(val); - return ERR_PTR(ret); - } - - for (i = 0; i < nval; i++) { - match = val[i] == desc->svid; - if (match) { - kfree(val); - goto find_mux; - } - } - kfree(val); - return NULL; - -find_mux: dev = class_find_device(&typec_mux_class, NULL, fwnode, mux_fwnode_match); From patchwork Wed May 24 12:29:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heikki Krogerus X-Patchwork-Id: 13253911 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CC78D182A2 for ; Wed, 24 May 2023 12:29:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1684931346; x=1716467346; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=jYinoiwSTAG2jM4KAb/D7mX4WCXztKTtVt7qQRZL8Zk=; b=f/Kmr9pIXk2D499DhJeezMT9Xr1fZzzBRKI2tjX6gpqETYjrOZc4887y k7eNve6MtEzRwOJ2iX5lP/k0HTThJdAzQBJ7zIwQ3JLJEGdTti+4msVfr Q1Dp55sWUmSQKnzq3DsMwNqHmzBPS+tpj90rG8ky+8gHOB2wyPsol+Gdl 0arhepNn4kMhNCwhziz3kUt0tprwXjUjMYS1KDSzKOU0I+vLu3mYK0xdp pTGLdzhn1xc5Nu8Di6/OqdX2NrfKXL13Cn0bnBw4YdEvu4vw/Gl2Iy8cG vVX0ef14b1F5JRf7Q3IF4ZTynEAoIvA5xRaeqN2CcpZOMZDHYthT3D+uk A==; X-IronPort-AV: E=McAfee;i="6600,9927,10720"; a="333904928" X-IronPort-AV: E=Sophos;i="6.00,189,1681196400"; d="scan'208";a="333904928" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 May 2023 05:29:04 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10720"; a="848731385" X-IronPort-AV: E=Sophos;i="6.00,189,1681196400"; d="scan'208";a="848731385" Received: from black.fi.intel.com (HELO black.fi.intel.com.) ([10.237.72.28]) by fmsmga001.fm.intel.com with ESMTP; 24 May 2023 05:29:02 -0700 From: Heikki Krogerus To: Greg Kroah-Hartman Cc: Bjorn Andersson , chrome-platform@lists.linux.dev, linux-usb@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Prashant Malani , Benson Leung Subject: [PATCH v1 2/2] usb: typec: mux: Remove alt mode parameters from the API Date: Wed, 24 May 2023 15:29:01 +0300 Message-Id: <20230524122901.53659-3-heikki.krogerus@linux.intel.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230524122901.53659-1-heikki.krogerus@linux.intel.com> References: <20230524122901.53659-1-heikki.krogerus@linux.intel.com> Precedence: bulk X-Mailing-List: chrome-platform@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The alt mode descriptor parameters are not used anymore. Signed-off-by: Heikki Krogerus Cc: Prashant Malani Cc: Benson Leung Cc: Bjorn Andersson Acked-by: Prashant Malani Reviewed-by: Bjorn Andersson Tested-by: Bjorn Andersson #pmic_glink_altmode --- drivers/platform/chrome/cros_ec_typec.c | 2 +- drivers/soc/qcom/pmic_glink_altmode.c | 5 +---- drivers/usb/typec/class.c | 4 ++-- drivers/usb/typec/mux.c | 6 ++---- include/linux/usb/typec_mux.h | 11 ++++------- 5 files changed, 10 insertions(+), 18 deletions(-) diff --git a/drivers/platform/chrome/cros_ec_typec.c b/drivers/platform/chrome/cros_ec_typec.c index a673c33424706..25f9767c28e82 100644 --- a/drivers/platform/chrome/cros_ec_typec.c +++ b/drivers/platform/chrome/cros_ec_typec.c @@ -77,7 +77,7 @@ static int cros_typec_get_switch_handles(struct cros_typec_port *port, { int ret = 0; - port->mux = fwnode_typec_mux_get(fwnode, NULL); + port->mux = fwnode_typec_mux_get(fwnode); if (IS_ERR(port->mux)) { ret = PTR_ERR(port->mux); dev_dbg(dev, "Mux handle not found: %d.\n", ret); diff --git a/drivers/soc/qcom/pmic_glink_altmode.c b/drivers/soc/qcom/pmic_glink_altmode.c index 4d7895bdeaf2f..df48fbea4b686 100644 --- a/drivers/soc/qcom/pmic_glink_altmode.c +++ b/drivers/soc/qcom/pmic_glink_altmode.c @@ -369,7 +369,6 @@ static int pmic_glink_altmode_probe(struct auxiliary_device *adev, { struct pmic_glink_altmode_port *alt_port; struct pmic_glink_altmode *altmode; - struct typec_altmode_desc mux_desc = {}; const struct of_device_id *match; struct fwnode_handle *fwnode; struct device *dev = &adev->dev; @@ -427,9 +426,7 @@ static int pmic_glink_altmode_probe(struct auxiliary_device *adev, alt_port->dp_alt.mode = USB_TYPEC_DP_MODE; alt_port->dp_alt.active = 1; - mux_desc.svid = USB_TYPEC_DP_SID; - mux_desc.mode = USB_TYPEC_DP_MODE; - alt_port->typec_mux = fwnode_typec_mux_get(fwnode, &mux_desc); + alt_port->typec_mux = fwnode_typec_mux_get(fwnode); if (IS_ERR(alt_port->typec_mux)) return dev_err_probe(dev, PTR_ERR(alt_port->typec_mux), "failed to acquire mode-switch for port: %d\n", diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index 349cc2030c903..faa184ae3dac8 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -2110,7 +2110,7 @@ typec_port_register_altmode(struct typec_port *port, struct typec_mux *mux; struct typec_retimer *retimer; - mux = typec_mux_get(&port->dev, desc); + mux = typec_mux_get(&port->dev); if (IS_ERR(mux)) return ERR_CAST(mux); @@ -2274,7 +2274,7 @@ struct typec_port *typec_register_port(struct device *parent, return ERR_PTR(ret); } - port->mux = typec_mux_get(&port->dev, NULL); + port->mux = typec_mux_get(&port->dev); if (IS_ERR(port->mux)) { ret = PTR_ERR(port->mux); put_device(&port->dev); diff --git a/drivers/usb/typec/mux.c b/drivers/usb/typec/mux.c index 089c2fd478318..a29945e2eb077 100644 --- a/drivers/usb/typec/mux.c +++ b/drivers/usb/typec/mux.c @@ -287,15 +287,13 @@ static void *typec_mux_match(const struct fwnode_handle *fwnode, /** * fwnode_typec_mux_get - Find USB Type-C Multiplexer * @fwnode: The caller device node - * @desc: Alt Mode description * * Finds a mux linked to the caller. This function is primarily meant for the * Type-C drivers. Returns a reference to the mux on success, NULL if no * matching connection was found, or ERR_PTR(-EPROBE_DEFER) when a connection * was found but the mux has not been enumerated yet. */ -struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode, - const struct typec_altmode_desc *desc) +struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode) { struct typec_mux_dev *mux_devs[TYPEC_MUX_MAX_DEVS]; struct typec_mux *mux; @@ -308,7 +306,7 @@ struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode, return ERR_PTR(-ENOMEM); count = fwnode_connection_find_matches(fwnode, "mode-switch", - (void *)desc, typec_mux_match, + NULL, typec_mux_match, (void **)mux_devs, ARRAY_SIZE(mux_devs)); if (count <= 0) { diff --git a/include/linux/usb/typec_mux.h b/include/linux/usb/typec_mux.h index 9292f0e078464..11bfa314529fd 100644 --- a/include/linux/usb/typec_mux.h +++ b/include/linux/usb/typec_mux.h @@ -60,8 +60,7 @@ struct typec_mux_desc { #if IS_ENABLED(CONFIG_TYPEC) -struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode, - const struct typec_altmode_desc *desc); +struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode); void typec_mux_put(struct typec_mux *mux); int typec_mux_set(struct typec_mux *mux, struct typec_mux_state *state); @@ -74,8 +73,7 @@ void *typec_mux_get_drvdata(struct typec_mux_dev *mux); #else -static inline struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode, - const struct typec_altmode_desc *desc) +static inline struct typec_mux *fwnode_typec_mux_get(struct fwnode_handle *fwnode); { return NULL; } @@ -102,10 +100,9 @@ static inline void *typec_mux_get_drvdata(struct typec_mux_dev *mux) #endif /* CONFIG_TYPEC */ -static inline struct typec_mux * -typec_mux_get(struct device *dev, const struct typec_altmode_desc *desc) +static inline struct typec_mux *typec_mux_get(struct device *dev) { - return fwnode_typec_mux_get(dev_fwnode(dev), desc); + return fwnode_typec_mux_get(dev_fwnode(dev)); } #endif /* __USB_TYPEC_MUX */