From patchwork Fri Jun 24 08:28:10 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "J, KEERTHY" X-Patchwork-Id: 9196961 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B004460754 for ; Fri, 24 Jun 2016 08:32:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9F8C827F85 for ; Fri, 24 Jun 2016 08:32:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9397C2849F; Fri, 24 Jun 2016 08:32:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1F46127F85 for ; Fri, 24 Jun 2016 08:32:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751348AbcFXI2m (ORCPT ); Fri, 24 Jun 2016 04:28:42 -0400 Received: from arroyo.ext.ti.com ([198.47.19.12]:54916 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751109AbcFXI2j (ORCPT ); Fri, 24 Jun 2016 04:28:39 -0400 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id u5O8Sauh019209; Fri, 24 Jun 2016 03:28:36 -0500 Received: from DLEE71.ent.ti.com (dlee71.ent.ti.com [157.170.170.114]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id u5O8SZdd029084; Fri, 24 Jun 2016 03:28:35 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DLEE71.ent.ti.com (157.170.170.114) with Microsoft SMTP Server id 14.3.294.0; Fri, 24 Jun 2016 03:28:35 -0500 Received: from ula0393675.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id u5O8SMhG018308; Fri, 24 Jun 2016 03:28:32 -0500 From: Keerthy To: , , CC: , , , , , Dave Gerlach Subject: [PATCH v2 4/5] mfd: tps65218: add version check to the PMIC probe Date: Fri, 24 Jun 2016 13:58:10 +0530 Message-ID: <1466756892-17015-4-git-send-email-j-keerthy@ti.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1466756892-17015-1-git-send-email-j-keerthy@ti.com> References: <1466756892-17015-1-git-send-email-j-keerthy@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Tero Kristo Version information will be needed to handle some error cases under the regulator driver, so store the information once during MFD probe. Signed-off-by: Tero Kristo Signed-off-by: Dave Gerlach Signed-off-by: Keerthy Acked-by: Lee Jones --- drivers/mfd/tps65218.c | 9 +++++++++ include/linux/mfd/tps65218.h | 1 + 2 files changed, 10 insertions(+) diff --git a/drivers/mfd/tps65218.c b/drivers/mfd/tps65218.c index 80b9dc3..ba610ad 100644 --- a/drivers/mfd/tps65218.c +++ b/drivers/mfd/tps65218.c @@ -219,6 +219,7 @@ static int tps65218_probe(struct i2c_client *client, struct tps65218 *tps; const struct of_device_id *match; int ret; + unsigned int chipid; match = of_match_device(of_tps65218_match_table, &client->dev); if (!match) { @@ -250,6 +251,14 @@ static int tps65218_probe(struct i2c_client *client, if (ret < 0) return ret; + ret = tps65218_reg_read(tps, TPS65218_REG_CHIPID, &chipid); + if (ret) { + dev_err(tps->dev, "Failed to read chipid: %d\n", ret); + return ret; + } + + tps->rev = chipid & TPS65218_CHIPID_REV_MASK; + ret = of_platform_populate(client->dev.of_node, NULL, NULL, &client->dev); if (ret < 0) diff --git a/include/linux/mfd/tps65218.h b/include/linux/mfd/tps65218.h index 7fdf532..85e464e 100644 --- a/include/linux/mfd/tps65218.h +++ b/include/linux/mfd/tps65218.h @@ -267,6 +267,7 @@ struct tps_info { struct tps65218 { struct device *dev; unsigned int id; + u8 rev; struct mutex tps_lock; /* lock guarding the data structure */ /* IRQ Data */