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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id ADB55C2D0CD for ; Thu, 15 May 2025 09:20:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=sbQmnTDOMgyIHX8BawjTxtCT46Qj2Y0Ex30/4egWNCQ=; b=sPl90aeIAagR+a WaRViJP6kHrWDLvGH1XI0W85vehoK0HoLAA5CX9t0auMDjwTW3khspLcjtgohLDjfu3Ku9i7bSghM Q4oBAsHA56CmJ9BC3t/x0uc+lgV7ZbvxWLlRU3A1oLtwp+JFXBZbsPbLsCFCESajZQSrG0GpqpQH/ CfWX4XggJ/+4klOkwWTVJbIThYaYUwTkAVOJH9PUHCy+BfC1nzyu3++almIHjTr5GEAeVgJew6vpv 2ZtaeWANQHEJs7fdrKAIG3Z9ceaDlkVwd2YLPpmJ719W8Nxrs8Sas992cO5lv4UFTGp+VhM3PiyUo cNz07aaV1NGBnzC/t5xQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uFUlC-000000007z2-1xOH; Thu, 15 May 2025 09:20:14 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.1 #2 (Red Hat Linux)) id 1u1qwa-00000001U0f-0wPj for linux-i3c@lists.infradead.org; Mon, 07 Apr 2025 18:11:38 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id D792F49C14; Mon, 7 Apr 2025 18:11:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6DF86C4CEDD; Mon, 7 Apr 2025 18:11:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744049495; bh=2t8t0F9zeWJL6ngosXiE6XTK7TFO9G0uejD+Xa30WN0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=C/f751f+6K97vUwzUAzl1v8XnRuu+Zc6H9nXT9uy4S076rItQngMo80xI5gk/UFa7 m6FGmuwJuk3kl9ErVCT79dLTBZ4R2932VMW6Zo7Nd4A/aH3AfPKQ8km7Zo6bzKJ3Av WjkUMV85WS1o/D77CNzrdVSiugLS9tvRwvAlrsOfoCJS/zLyXz9DA+gO0WjeWcPcGI yGAz94RgG0MTslBNA23+4wWPfhAEN4kWxB7kFjRPG6GpAQ0KUlcxG67/Xk4OcS5VEI OMVNz24N9QGcALevUVHAIkXDn33mAdrq+fTyCk5fHCBnhsPa0cdQ8h9WNQAGbgvsJO Tppb4Xjt1GRTw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Stanley Chu , Frank Li , Alexandre Belloni , Sasha Levin , miquel.raynal@bootlin.com, linux-i3c@lists.infradead.org, imx@lists.linux.dev Subject: [PATCH AUTOSEL 6.14 16/31] i3c: master: svc: Add support for Nuvoton npcm845 i3c Date: Mon, 7 Apr 2025 14:10:32 -0400 Message-Id: <20250407181054.3177479-16-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250407181054.3177479-1-sashal@kernel.org> References: <20250407181054.3177479-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.14.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250407_111136_308991_48B14559 X-CRM114-Status: GOOD ( 12.65 ) X-Mailman-Approved-At: Thu, 15 May 2025 02:17:27 -0700 X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org 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 d6057d8c7dec4..40269b692aa87 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 -- linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c