From patchwork Wed Nov 10 17:17:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "H. Nikolaus Schaller" X-Patchwork-Id: 12612523 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 B2F7DC433FE for ; Wed, 10 Nov 2021 17:17:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9F179610CB for ; Wed, 10 Nov 2021 17:17:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231795AbhKJRU0 (ORCPT ); Wed, 10 Nov 2021 12:20:26 -0500 Received: from mo4-p03-ob.smtp.rzone.de ([85.215.255.101]:34355 "EHLO mo4-p03-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232506AbhKJRUQ (ORCPT ); Wed, 10 Nov 2021 12:20:16 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1636564636; s=strato-dkim-0002; d=goldelico.com; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Cc:Date: From:Subject:Sender; bh=3nGl4uo8+8CRvg/1vxteRQQIgYVTfRuZ6nnGucc4iuo=; b=EAc6JQi0Gtqrx3WOfOJujowJWRbM9AR99X50Bn9iQOl55vtxPyiqzc0fDFngnsNbSA n6SGCjXe46me5t302M2Vnc23QbiiH2SPuOh59N5tdgri6ASgiihHdj2fQvG3yWPzB/Qm l3Bwuf8DffkgfyX61yFq9Trm1eRJvSrpeeSbGICGSmmvdgo+17EKz+3GmkQGsauO4AD8 fnP/OafjDDAAlWr0CtBOLLIGFZ5IFZs37L7UG5tCtR+OPrI6TuXQkCPtQwv1oQaNYqeA VPvMfFCZJ9wznJpqqErO3Oz0ldtt4ega7+FAbehYXzD4XB3QiGZX0+MsAU2k5nO2rUMo dJag== Authentication-Results: strato.com; dkim=none X-RZG-AUTH: ":JGIXVUS7cutRB/49FwqZ7WcJeFKiMhflhwDubTJ9o12DNOsPj0lByOdfLlf0" X-RZG-CLASS-ID: mo00 Received: from iMac.fritz.box by smtp.strato.de (RZmta 47.34.5 DYNA|AUTH) with ESMTPSA id Y02aa4xAAHHG51h (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits)) (Client did not present a certificate); Wed, 10 Nov 2021 18:17:16 +0100 (CET) From: "H. Nikolaus Schaller" To: Ulf Hansson , =?utf-8?b?SsOpcsO0bWUgUG91aWxsZXI=?= , Avri Altman , Shawn Lin , Linus Walleij , Tony Lindgren , Bean Huo , "H. Nikolaus Schaller" , Kiwoong Kim , Tian Tao , Andreas Kemnade , Yang Li Cc: notasas@gmail.com, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, letux-kernel@openphoenux.org, kernel@pyra-handheld.com, linux-omap@vger.kernel.org Subject: [PATCH v2 5/6] mmc: core: transplant ti,wl1251 quirks from to be retired omap_hsmmc Date: Wed, 10 Nov 2021 18:17:10 +0100 Message-Id: <774565df7f02124c003aaf8b879706352548f832.1636564631.git.hns@goldelico.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org The TiWi WL1251 WiFi chip needs special setup of the sdio interface before it can be probed. So far, this is done in omap_hsmmc_init_card() in omap_hsmmc.c which makes it useable only if connected to omap devices which use the omap_hsmmc. The OpenPandora is the most promient example. There are plans to switch to a newer sdhci-omap driver and retire omap_hsmmc. Hence this quirk must be reworked or moved somewhere else. Ideally to some location that is not dependent on the specific SoC mmc host driver. This is achieved by the new mmc_fixup_device() option introduced by ("mmc: allow to match the device tree to apply quirks") to match through device tree compatible string. This quirk will be called early right after where host->ops->init_card() and thus omap_hsmmc_init_card() was previously called. Note that we do not need to transplant card->ocr = 0x80; because we rely on ("mmc: core: Fixup storing of OCR for MMC_QUIRK_NONSTD_SDIO"). Signed-off-by: H. Nikolaus Schaller --- drivers/mmc/core/card.h | 18 ++++++++++++++++++ drivers/mmc/core/quirks.h | 2 ++ 2 files changed, 20 insertions(+) diff --git a/drivers/mmc/core/card.h b/drivers/mmc/core/card.h index 216faf5ad1021..99045e138ba48 100644 --- a/drivers/mmc/core/card.h +++ b/drivers/mmc/core/card.h @@ -168,6 +168,24 @@ static inline void __maybe_unused add_limit_rate_quirk(struct mmc_card *card, card->quirk_max_rate = data; } +static inline void __maybe_unused wl1251_quirk(struct mmc_card *card, + int data) +{ + /* + * We have TI wl1251 attached to this mmc. Pass this + * information to the SDIO core because it can't be + * probed by normal methods. + */ + + dev_info(card->host->parent, "found wl1251\n"); + card->quirks |= MMC_QUIRK_NONSTD_SDIO; + card->cccr.wide_bus = 1; + card->cis.vendor = 0x104c; + card->cis.device = 0x9066; + card->cis.blksize = 512; + card->cis.max_dtr = 24000000; +} + /* * Quirk add/remove for MMC products. */ diff --git a/drivers/mmc/core/quirks.h b/drivers/mmc/core/quirks.h index a23df65332cdf..20f5687272778 100644 --- a/drivers/mmc/core/quirks.h +++ b/drivers/mmc/core/quirks.h @@ -147,6 +147,8 @@ static const struct mmc_fixup __maybe_unused sdio_fixup_methods[] = { }; static const struct mmc_fixup __maybe_unused sdio_card_init_methods[] = { + SDIO_FIXUP_COMPATIBLE("ti,wl1251", wl1251_quirk, 0), + END_FIXUP };