From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 34DC324887D; Tue, 29 Apr 2025 17:04:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745946277; cv=none; b=bT3wBY9RFhl/KMEZVwmtISziBa8cufQ0FmXwy3OLzSbiIgLY0EfCMAk6EDuTBLrwcqPHYnMl7KTAOYx/QWfB/VygR3Gp/tDvBHHT0cQ3CqAsWg2v3/8UBQBKYWa1Xqa/kl9QSKGdtREgAr5kGfd6rmxHiANX0yI3VQSP1SnwDJ8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745946277; c=relaxed/simple; bh=4tcFvjojyiLTGahshqU8tNGI/t6d7+Q4Q/zoLNQZD2c=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pHn4k9HR9louzKDrHe6qO/KI2jWapOw6DyvgHXnNd2/FaqoBCVVfXMbvdT9MVcKrV2F2Z6f/SGizyaZWGSCfALwhniRAYb9Nxdgd/Mgy07n13nONqu4cm4WZwv2zn/CJKEAu8BQxvQaItymRh31nM+IG0d4VbTSd6xhOAWuvMlU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=2dun7l+O; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="2dun7l+O" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 97338C4CEE3; Tue, 29 Apr 2025 17:04:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1745946277; bh=4tcFvjojyiLTGahshqU8tNGI/t6d7+Q4Q/zoLNQZD2c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2dun7l+Ov7Dj59O0NQPM8Ai+QnZc2gXnA4AR7OOznwoQhlo6CcUgUdfWNAR4v5E/4 M+4ScwKtG0qhu3m2xezXUPdUQPVSte+ODHv8xjYFY/UnLVCXzDhNNA4EpiQYwfnbQA rRlcar9HAh4MtMngxrqgwf8An/2xYxRZ6LgXkqRQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Stanley Chu , Frank Li , Alexandre Belloni , Sasha Levin Subject: [PATCH 6.14 212/311] i3c: master: svc: Add support for Nuvoton npcm845 i3c Date: Tue, 29 Apr 2025 18:40:49 +0200 Message-ID: <20250429161129.683487374@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250429161121.011111832@linuxfoundation.org> References: <20250429161121.011111832@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Stanley Chu [ Upstream commit 98d87600a04e42282797631aa6b98dd43999e274 ] Nuvoton npcm845 SoC uses an older IP version, which has specific hardware issues that need to be addressed with a different compatible string. Add driver data for different compatible strings to define platform specific quirks. Add compatible string for npcm845 to define its own driver data. Signed-off-by: Stanley Chu Reviewed-by: Frank Li Link: https://lore.kernel.org/r/20250306075429.2265183-3-yschu@nuvoton.com Signed-off-by: Alexandre Belloni Signed-off-by: Sasha Levin --- drivers/i3c/master/svc-i3c-master.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/i3c/master/svc-i3c-master.c b/drivers/i3c/master/svc-i3c-master.c index ed7b9d7f688cc..0fc03bb5d0a6e 100644 --- a/drivers/i3c/master/svc-i3c-master.c +++ b/drivers/i3c/master/svc-i3c-master.c @@ -158,6 +158,10 @@ struct svc_i3c_regs_save { u32 mdynaddr; }; +struct svc_i3c_drvdata { + u32 quirks; +}; + /** * struct svc_i3c_master - Silvaco I3C Master structure * @base: I3C master controller @@ -183,6 +187,7 @@ struct svc_i3c_regs_save { * @ibi.tbq_slot: To be queued IBI slot * @ibi.lock: IBI lock * @lock: Transfer lock, protect between IBI work thread and callbacks from master + * @drvdata: Driver data * @enabled_events: Bit masks for enable events (IBI, HotJoin). * @mctrl_config: Configuration value in SVC_I3C_MCTRL for setting speed back. */ @@ -214,6 +219,7 @@ struct svc_i3c_master { spinlock_t lock; } ibi; struct mutex lock; + const struct svc_i3c_drvdata *drvdata; u32 enabled_events; u32 mctrl_config; }; @@ -1817,6 +1823,10 @@ static int svc_i3c_master_probe(struct platform_device *pdev) if (!master) return -ENOMEM; + master->drvdata = of_device_get_match_data(dev); + if (!master->drvdata) + return -EINVAL; + master->regs = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(master->regs)) return PTR_ERR(master->regs); @@ -1958,8 +1968,13 @@ static const struct dev_pm_ops svc_i3c_pm_ops = { svc_i3c_runtime_resume, NULL) }; +static const struct svc_i3c_drvdata npcm845_drvdata = {}; + +static const struct svc_i3c_drvdata svc_default_drvdata = {}; + static const struct of_device_id svc_i3c_master_of_match_tbl[] = { - { .compatible = "silvaco,i3c-master-v1"}, + { .compatible = "nuvoton,npcm845-i3c", .data = &npcm845_drvdata }, + { .compatible = "silvaco,i3c-master-v1", .data = &svc_default_drvdata }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, svc_i3c_master_of_match_tbl); -- 2.39.5