From patchwork Mon Mar 13 18:45:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Pearson X-Patchwork-Id: 13173102 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AE5FDC74A4B for ; Mon, 13 Mar 2023 18:47:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229792AbjCMSr0 (ORCPT ); Mon, 13 Mar 2023 14:47:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42626 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231486AbjCMSrT (ORCPT ); Mon, 13 Mar 2023 14:47:19 -0400 Received: from out3-smtp.messagingengine.com (out3-smtp.messagingengine.com [66.111.4.27]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7AA3186148 for ; Mon, 13 Mar 2023 11:46:47 -0700 (PDT) Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailout.nyi.internal (Postfix) with ESMTP id D00BA5C0132; Mon, 13 Mar 2023 14:45:57 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute5.internal (MEProxy); Mon, 13 Mar 2023 14:45:57 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=squebb.ca; h=cc :cc:content-transfer-encoding:content-type:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to; s=fm3; t=1678733157; x= 1678819557; bh=TVaLzBYLTEA/2WzJl1c9xbIUn9yQ2wzcjQmgIsMNKZA=; b=o PNsMaCglPBFDolo26RzSh5/uuelBIiW2vQ8w9fWfQHqfGeV4SsNSvkreFO+pCnRS /0zWqniQ2tq2TKz1fW39B72LIJIm9tFWl2KBx2IkctGi4Hxdz5orXTTg0BCGS9LR XzbL1n21y3w10nq8ni/n8ppv5j9dWU7QeXDw9rF7bSGsRNkQGNeNGrP6IHrHipKO /WRPtcLYdUVcVadskVe6pGnXc9cn35jnqkELm9J+rUFHQKtG2QWeiZC5w5USSCtl jyMMuj6Rc0LqqHd2OeyMr6oCTPLg4ZazNXXv7Shw8U6R2wjYTtpb5rteMStnR/z1 hvkXThId+4dvPiL8X97CA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:date:date:feedback-id:feedback-id:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm2; t=1678733157; x= 1678819557; bh=TVaLzBYLTEA/2WzJl1c9xbIUn9yQ2wzcjQmgIsMNKZA=; b=I HwW7V9LT30710IR5hBFF2N1wu8GTXfNqDgK4wHSm5fhZ5/c5bnyvoxXKRPA/IFkv qcKClqn4HZAySFbvzAlfb8Bek6JDxPEJ65Zr7IiXsE1ruPdKwHjSN59ppWMGQiVH b9bvozbpHnDbuynJv2Uk/8FoyuAbL4Bg8nmBClo+bcEMalxzT9u20AqjVqttRN0F RFbWkkYWEUbW3AW7shylv3M1yPdtEv+sGEYhnlEAHZugM66s+mAPoDUzqZs6OTaf I+pSJVqM8Xj5hKab75EP1Nfp1Q6K6YWfZwhBFlv1KzC1v3H2HAiMv13wqxcdQ2Qi rJrU5DFygDBtFLqN/vQMA== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrvddvgedgudduhecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecuogetfedtuddqtdduucdludehmdenucfjughrpe fhvfevufffkffojghfggfgsedtkeertdertddtnecuhfhrohhmpeforghrkhcurfgvrghr shhonhcuoehmphgvrghrshhonhdqlhgvnhhovhhosehsqhhuvggssgdrtggrqeenucggtf frrghtthgvrhhnpeeftddvjeefleffvefhgfejjeehudetteeigeeugfekhffhgeejudeu teehgfdvffenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhroh hmpehmphgvrghrshhonhdqlhgvnhhovhhosehsqhhuvggssgdrtggr X-ME-Proxy: Feedback-ID: ibe194615:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Mon, 13 Mar 2023 14:45:57 -0400 (EDT) From: Mark Pearson To: mpearson-lenovo@squebb.ca Cc: hdegoede@redhat.com, markgross@kernel.org, markpearson@lenovo.com, platform-driver-x86@vger.kernel.org Subject: [PATCH v2 2/2] platform/x86: think-lmi: Add possible_values for ThinkStation Date: Mon, 13 Mar 2023 14:45:41 -0400 Message-Id: <20230313184541.193733-2-mpearson-lenovo@squebb.ca> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230313184541.193733-1-mpearson-lenovo@squebb.ca> References: <20230313184541.193733-1-mpearson-lenovo@squebb.ca> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@vger.kernel.org ThinkStation platforms don't support the API to return possible_values but instead embed it in the settings string. Try and extract this information and set the possible_values attribute appropriately. Signed-off-by: Mark Pearson --- Changes in V2: - Move no value for possible_values handling into show function - use kstrndup for allocating string drivers/platform/x86/think-lmi.c | 26 ++++++++++++++++++++++---- 1 file changed, 22 insertions(+), 4 deletions(-) diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index 5fa5451c4802..7dd8f72176f5 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -941,10 +941,9 @@ static ssize_t possible_values_show(struct kobject *kobj, struct kobj_attribute { struct tlmi_attr_setting *setting = to_tlmi_attr_setting(kobj); - if (!tlmi_priv.can_get_bios_selections) - return -EOPNOTSUPP; - - return sysfs_emit(buf, "%s\n", setting->possible_values); + if (setting->possible_values) + return sysfs_emit(buf, "%s\n", setting->possible_values); + return sysfs_emit(buf, "not available\n"); } static ssize_t type_show(struct kobject *kobj, struct kobj_attribute *attr, @@ -1440,6 +1439,25 @@ static int tlmi_analyze(void) if (ret || !setting->possible_values) pr_info("Error retrieving possible values for %d : %s\n", i, setting->display_name); + } else { + /* + * Older Thinkstations don't support the bios_selections API. + * Instead they store this as a [Optional:Option1,Option2] section of the + * name string. + * Try and pull that out if it's available. + */ + char *item, *optstart, *optend; + + if (!tlmi_setting(setting->index, &item, LENOVO_BIOS_SETTING_GUID)) { + optstart = strstr(item, "[Optional:"); + if (optstart) { + optstart += strlen("[Optional:"); + optend = strstr(optstart, "]"); + if (optend) + setting->possible_values = + kstrndup(optstart, optend - optstart, GFP_KERNEL); + } + } } kobject_init(&setting->kobj, &tlmi_attr_setting_ktype); tlmi_priv.setting[i] = setting;