From patchwork Thu Feb 4 16:24:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vadim Pasternak X-Patchwork-Id: 376566 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, UNPARSEABLE_RELAY, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 29B22C43381 for ; Thu, 4 Feb 2021 16:26:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ED62E64E91 for ; Thu, 4 Feb 2021 16:26:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237901AbhBDQ00 (ORCPT ); Thu, 4 Feb 2021 11:26:26 -0500 Received: from mail-il-dmz.mellanox.com ([193.47.165.129]:49681 "EHLO mellanox.co.il" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S237942AbhBDQZr (ORCPT ); Thu, 4 Feb 2021 11:25:47 -0500 Received: from Internal Mail-Server by MTLPINE1 (envelope-from vadimp@nvidia.com) with SMTP; 4 Feb 2021 18:24:56 +0200 Received: from r-build-lowlevel.mtr.labs.mlnx. (r-build-lowlevel.mtr.labs.mlnx [10.209.0.190]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id 114GOrHE012325; Thu, 4 Feb 2021 18:24:56 +0200 From: Vadim Pasternak To: peda@axentia.se, wsa@the-dreams.de Cc: linux-i2c@vger.kernel.org, Vadim Pasternak Subject: [PATCH i2c-next v4 3/6] i2c: mux: mlxcpld: Get rid of adapter numbers enforcement Date: Thu, 4 Feb 2021 18:24:48 +0200 Message-Id: <20210204162451.29518-4-vadimp@nvidia.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20210204162451.29518-1-vadimp@nvidia.com> References: <20210204162451.29518-1-vadimp@nvidia.com> Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Do not set the argument 'force_nr' of i2c_mux_add_adapter() routine, instead provide argument 'chan_id'. Rename mux ids array from 'adap_ids' to 'chan_ids'. The motivation is to prepare infrastructure to be able to: - Create only the child adapters which are actually needed - for which channel ids are specified. - To assign 'nrs' to these child adapters dynamically, with no 'nr' enforcement. Signed-off-by: Vadim Pasternak --- v3->v4: Comments pointed out by Peter: - Extend patch with the code from the next patches dealing with argument two and three of the i2c_mux_add_adapter() routine. v2->v3: Changes added by Vadim: - Rename patch from "Rename mux ids array" to "Get rid of adapter numbers enforcement". --- drivers/i2c/muxes/i2c-mux-mlxcpld.c | 11 ++--------- include/linux/platform_data/mlxcpld.h | 4 ++-- 2 files changed, 4 insertions(+), 11 deletions(-) diff --git a/drivers/i2c/muxes/i2c-mux-mlxcpld.c b/drivers/i2c/muxes/i2c-mux-mlxcpld.c index 113ad84cdd94..388fe5c080aa 100644 --- a/drivers/i2c/muxes/i2c-mux-mlxcpld.c +++ b/drivers/i2c/muxes/i2c-mux-mlxcpld.c @@ -101,9 +101,8 @@ static int mlxcpld_mux_probe(struct platform_device *pdev) struct mlxcpld_mux_plat_data *pdata = dev_get_platdata(&pdev->dev); struct i2c_client *client = to_i2c_client(pdev->dev.parent); struct i2c_mux_core *muxc; - int num, force; struct mlxcpld_mux *data; - int err; + int num, err; if (!pdata) return -EINVAL; @@ -126,13 +125,7 @@ static int mlxcpld_mux_probe(struct platform_device *pdev) /* Create an adapter for each channel. */ for (num = 0; num < CPLD_MUX_MAX_NCHANS; num++) { - if (num >= pdata->num_adaps) - /* discard unconfigured channels */ - break; - - force = pdata->adap_ids[num]; - - err = i2c_mux_add_adapter(muxc, force, num, 0); + err = i2c_mux_add_adapter(muxc, 0, pdata->chan_ids[num], 0); if (err) goto virt_reg_failed; } diff --git a/include/linux/platform_data/mlxcpld.h b/include/linux/platform_data/mlxcpld.h index e6c18bf017dd..04d93c563c04 100644 --- a/include/linux/platform_data/mlxcpld.h +++ b/include/linux/platform_data/mlxcpld.h @@ -11,12 +11,12 @@ /* Platform data for the CPLD I2C multiplexers */ /* mlxcpld_mux_plat_data - per mux data, used with i2c_register_board_info - * @adap_ids - adapter array + * @chan_ids - channels array * @num_adaps - number of adapters * @sel_reg_addr - mux select register offset in CPLD space */ struct mlxcpld_mux_plat_data { - int *adap_ids; + int *chan_ids; int num_adaps; int sel_reg_addr; };