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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 03EEAC433F5 for ; Wed, 6 Oct 2021 08:45:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D458661163 for ; Wed, 6 Oct 2021 08:45:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237748AbhJFIrW (ORCPT ); Wed, 6 Oct 2021 04:47:22 -0400 Received: from mga09.intel.com ([134.134.136.24]:15157 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237543AbhJFIrU (ORCPT ); Wed, 6 Oct 2021 04:47:20 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10128"; a="225838574" X-IronPort-AV: E=Sophos;i="5.85,350,1624345200"; d="scan'208";a="225838574" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Oct 2021 01:45:29 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.85,350,1624345200"; d="scan'208";a="568070709" Received: from brentlu-brix.itwn.intel.com ([10.5.253.56]) by fmsmga002.fm.intel.com with ESMTP; 06 Oct 2021 01:45:27 -0700 From: Brent Lu To: alsa-devel@alsa-project.org Cc: Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , linux-kernel@vger.kernel.org, Brent Lu Subject: [PATCH] ASoC: soc-acpi: add alternative id field for machine driver matching Date: Wed, 6 Oct 2021 16:43:51 +0800 Message-Id: <20211006084351.438510-1-brent.lu@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Current design to support second headphone driver in the same machine driver is to duplicate the entries in snd_soc_acpi_mach array and board configs in machine driver. We can avoid this by adding an id_alt field in snd_soc_acpi_mach structure to specify alternative ACPI HIDs for machine driver enumeration and leave the codec type detection to machine driver if necessary. Signed-off-by: Brent Lu --- include/sound/soc-acpi.h | 2 ++ sound/soc/soc-acpi.c | 21 ++++++++++++++++++++- 2 files changed, 22 insertions(+), 1 deletion(-) diff --git a/include/sound/soc-acpi.h b/include/sound/soc-acpi.h index 2f3fa385c092..fcf6bae9f9d7 100644 --- a/include/sound/soc-acpi.h +++ b/include/sound/soc-acpi.h @@ -129,6 +129,7 @@ struct snd_soc_acpi_link_adr { * all firmware/topology related fields. * * @id: ACPI ID (usually the codec's) used to find a matching machine driver. + * @id_alt: array of ACPI IDs used as an alternative of id field. * @link_mask: describes required board layout, e.g. for SoundWire. * @links: array of link _ADR descriptors, null terminated. * @drv_name: machine driver name @@ -146,6 +147,7 @@ struct snd_soc_acpi_link_adr { /* Descriptor for SST ASoC machine driver */ struct snd_soc_acpi_mach { const u8 id[ACPI_ID_LEN]; + struct snd_soc_acpi_codecs *id_alt; const u32 link_mask; const struct snd_soc_acpi_link_adr *links; const char *drv_name; diff --git a/sound/soc/soc-acpi.c b/sound/soc/soc-acpi.c index 395229bf5c51..ab67d640c20f 100644 --- a/sound/soc/soc-acpi.c +++ b/sound/soc/soc-acpi.c @@ -8,6 +8,25 @@ #include #include +static bool snd_soc_acpi_id_present(struct snd_soc_acpi_mach *machine) +{ + struct snd_soc_acpi_codecs *id_alt = machine->id_alt; + int i; + + if (acpi_dev_present(machine->id, NULL, -1)) + return true; + + if (id_alt == NULL) + return false; + + for (i = 0; i < id_alt->num_codecs; i++) { + if (acpi_dev_present(id_alt->codecs[i], NULL, -1)) + return true; + } + + return false; +} + struct snd_soc_acpi_mach * snd_soc_acpi_find_machine(struct snd_soc_acpi_mach *machines) { @@ -15,7 +34,7 @@ snd_soc_acpi_find_machine(struct snd_soc_acpi_mach *machines) struct snd_soc_acpi_mach *mach_alt; for (mach = machines; mach->id[0]; mach++) { - if (acpi_dev_present(mach->id, NULL, -1)) { + if (snd_soc_acpi_id_present(mach) != false) { if (mach->machine_quirk) { mach_alt = mach->machine_quirk(mach); if (!mach_alt) -- 2.25.1