From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 135FAEB64D9 for ; Fri, 16 Jun 2023 02:22:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date:Subject:Cc:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=GjOiFyH7HH4wpkacDnK9Xdj+QPx62leacK0r3q3l+uM=; b=45TNuPYc3KvKic i557QXRVw8ygXIQc6NEmWCsi151vZxpLbzBynYL+FlvwU0UDuWhBVdcPXZcR7G8Y8r1mf3mKkhJMe mEP2ogtThWM77NAcGnyQ/y5tEpL/3xKelTUHqBf+rC8lzBXLj8tGByjeLXGduLoqhO7yjS1Ahlipq Bq+IvNhBZdX/kuR1LAVc3N0yObXD9uuVc/SgBD/y2zmTBFnP8P7wF/DDOKNn2oo9nI2R+rZRUm6BT sTCQ3N3G+ilCrUDv3WAayWvhjuqTEqMkMQK7pn+9f3FrK88VLbJ2bKhJsboydYKZz0DU1F4x6dVCj gRGliqRBPqLbelbE46kg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q9z6F-00GcJj-1t; Fri, 16 Jun 2023 02:22:07 +0000 Received: from mail-m11876.qiye.163.com ([115.236.118.76]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q9z6D-00GcJ0-1I for linux-rockchip@lists.infradead.org; Fri, 16 Jun 2023 02:22:06 +0000 Received: from localhost.localdomain (unknown [58.22.7.114]) by mail-m11876.qiye.163.com (Hmail) with ESMTPA id EE24A3C02EE; Fri, 16 Jun 2023 10:21:58 +0800 (CST) From: Frank Wang To: linux@roeck-us.net, heikki.krogerus@linux.intel.com, gregkh@linuxfoundation.org, sebastian.reichel@collabora.com, heiko@sntech.de Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, huangtao@rock-chips.com, william.wu@rock-chips.com, jianwei.zheng@rock-chips.com, yubing.zhang@rock-chips.com, wmc@rock-chips.com, Frank Wang Subject: usb: typec: tcpm: add get max power support Date: Fri, 16 Jun 2023 10:21:57 +0800 Message-Id: <20230616022157.25877-1-frank.wang@rock-chips.com> X-Mailer: git-send-email 2.17.1 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFDSUNOT01LS0k3V1ktWUFJV1kPCRoVCBIfWUFZQktITVYfHkhPTEkdS00ZQkNVEwETFh oSFyQUDg9ZV1kYEgtZQVlOQ1VJSVVMVUpKT1lXWRYaDxIVHRRZQVlPS0hVSk5MSUpJVUpLS1VKQl kG X-HM-Tid: 0a88c2026e6a2eb2kusnee24a3c02ee X-HM-MType: 1 X-HM-Sender-Digest: e1kMHhlZQR0aFwgeV1kSHx4VD1lBWUc6MDo6Czo4OD1REBBLFiEcEggI GDYwCwtVSlVKTUNNQ0NJSkpCTEhMVTMWGhIXVR0JGhUQVQwaFRw7CRQYEFYYExILCFUYFBZFWVdZ EgtZQVlOQ1VJSVVMVUpKT1lXWQgBWUFJQ01PNwY+ X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230615_192205_602028_2889F022 X-CRM114-Status: UNSURE ( 9.10 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Traverse fixed pdos to calculate the maximum power that the charger can provide, and it can be got by POWER_SUPPLY_PROP_INPUT_POWER_LIMIT property. Signed-off-by: Frank Wang --- drivers/usb/typec/tcpm/tcpm.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c index 9f6aaa3e70ca8..829d75ebab422 100644 --- a/drivers/usb/typec/tcpm/tcpm.c +++ b/drivers/usb/typec/tcpm/tcpm.c @@ -6340,6 +6340,27 @@ static int tcpm_psy_get_current_now(struct tcpm_port *port, return 0; } +static int tcpm_psy_get_input_power_limit(struct tcpm_port *port, + union power_supply_propval *val) +{ + unsigned int src_mv, src_ma, max_src_uw = 0; + unsigned int i, tmp; + + for (i = 0; i < port->nr_source_caps; i++) { + u32 pdo = port->source_caps[i]; + + if (pdo_type(pdo) == PDO_TYPE_FIXED) { + src_mv = pdo_fixed_voltage(pdo); + src_ma = pdo_max_current(pdo); + tmp = src_mv * src_ma; + max_src_uw = tmp > max_src_uw ? tmp : max_src_uw; + } + } + + val->intval = max_src_uw; + return 0; +} + static int tcpm_psy_get_prop(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) @@ -6369,6 +6390,9 @@ static int tcpm_psy_get_prop(struct power_supply *psy, case POWER_SUPPLY_PROP_CURRENT_NOW: ret = tcpm_psy_get_current_now(port, val); break; + case POWER_SUPPLY_PROP_INPUT_POWER_LIMIT: + tcpm_psy_get_input_power_limit(port, val); + break; default: ret = -EINVAL; break; -- 2.17.1 _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip