From nobody Wed Oct 8 14:18:27 2025 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) (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 DE21C2DBF4D; Fri, 27 Jun 2025 13:53:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751032406; cv=none; b=IHerJC74fESShfeJ1YZNVudFnrhHgQtyICQv84YJCFTz1ItG7teHQ6jDDQMLJ5xttk+HZo6+jz6hcEiNv9V6BtEmcexML7NcnUhIyqMXorY/ToiWyfDxiNccnblYNrQrnFN4Jft9MtejbJ0h7TspW3aWTbpeR0TFLjqJBKPJfuQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751032406; c=relaxed/simple; bh=UYi8yaa4IpCW+5RfkUS3FLlv0ptEwqridhTpzFcNsSI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UI/GfW57mS8nAjTOQGF8PZVpNyUZPPXVSpvJgG/a3ZG3orENAxgXOmH7jqtdxdGXsyrUEgxcfsaRqJtAwstImN/kq99WGojaz8fZ9hnxTIRuDry4RkJ6xFVPMCkflPR6T4Zt1nURzv5qZQDKpqZMnHMkQ3El2imFlxD7+ZZSoU8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=YEWA9u7u; arc=none smtp.client-ip=198.175.65.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="YEWA9u7u" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1751032404; x=1782568404; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=UYi8yaa4IpCW+5RfkUS3FLlv0ptEwqridhTpzFcNsSI=; b=YEWA9u7u88s0KBIZXL/g/beu/2CLafOVDYtvYGbslSBpjqumBcK8gVeK 6kYC9jwUjjSBuaI+erCNDDXyuCoyqi6kBXKec713j7h28DRMv4iMPLYrl 0YL/gV3ATrSYuxj1hnj/7DTHAUqzZK/JBjb6L2FNM58ADcKpUetprUEIr NEihPg5gqovIJ7gFFWISBKAvp1jqcYHPauB3nIeRf9ABgFGKtCfnPQgDS 0rQAYSZJ6+oD64hBAvCTcTl5c9YAApMb2sjPd0qYC6E/+M/m0kCUyl4Ux 7eLxJFyojsLpr1lOVeRCe4OuVC7HTfHM0uRmF/UyI2XsPARvlFy5gJR6n g==; X-CSE-ConnectionGUID: RcPePnQtRLiRZxpVDqZOpA== X-CSE-MsgGUID: DyW5lHf9RJCLhuGMyMpz6w== X-IronPort-AV: E=McAfee;i="6800,10657,11477"; a="53207618" X-IronPort-AV: E=Sophos;i="6.16,270,1744095600"; d="scan'208";a="53207618" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Jun 2025 06:53:24 -0700 X-CSE-ConnectionGUID: aOcOpuQiQuGuPsijHNo7GQ== X-CSE-MsgGUID: r/gHkFAZQoO0uzJhDLsVdQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,270,1744095600"; d="scan'208";a="183708817" Received: from black.fi.intel.com (HELO black.fi.intel.com.) ([10.237.72.28]) by fmviesa001.fm.intel.com with ESMTP; 27 Jun 2025 06:53:20 -0700 From: Heikki Krogerus To: Lucas De Marchi , =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= , Rodrigo Vivi Cc: Jarkko Nikula , David Airlie , Simona Vetter , Andy Shevchenko , Mika Westerberg , Jan Dabros , Andi Shyti , Raag Jadav , "Tauro, Riana" , "Adatrao, Srinivasa" , "Michael J. Ruhl" , intel-xe@lists.freedesktop.org, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 1/4] i2c: designware: Add quirk for Intel Xe Date: Fri, 27 Jun 2025 16:53:11 +0300 Message-ID: <20250627135314.873972-2-heikki.krogerus@linux.intel.com> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250627135314.873972-1-heikki.krogerus@linux.intel.com> References: <20250627135314.873972-1-heikki.krogerus@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The regmap is coming from the parent also in case of Xe GPUs. Reusing the Wangxun quirk for that. Originally-by: Michael J. Ruhl Signed-off-by: Heikki Krogerus Acked-by: Jarkko Nikula Reviewed-by: Andi Shyti Reviewed-by: Rodrigo Vivi --- drivers/i2c/busses/i2c-designware-platdrv.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/buss= es/i2c-designware-platdrv.c index 879719e91df2..a35e4c64a1d4 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -101,7 +101,7 @@ static int bt1_i2c_request_regs(struct dw_i2c_dev *dev) } #endif =20 -static int txgbe_i2c_request_regs(struct dw_i2c_dev *dev) +static int dw_i2c_get_parent_regmap(struct dw_i2c_dev *dev) { dev->map =3D dev_get_regmap(dev->dev->parent, NULL); if (!dev->map) @@ -123,12 +123,15 @@ static int dw_i2c_plat_request_regs(struct dw_i2c_dev= *dev) struct platform_device *pdev =3D to_platform_device(dev->dev); int ret; =20 + if (device_is_compatible(dev->dev, "intel,xe-i2c")) + return dw_i2c_get_parent_regmap(dev); + switch (dev->flags & MODEL_MASK) { case MODEL_BAIKAL_BT1: ret =3D bt1_i2c_request_regs(dev); break; case MODEL_WANGXUN_SP: - ret =3D txgbe_i2c_request_regs(dev); + ret =3D dw_i2c_get_parent_regmap(dev); break; default: dev->base =3D devm_platform_ioremap_resource(pdev, 0); @@ -205,25 +208,28 @@ static void i2c_dw_remove_lock_support(struct dw_i2c_= dev *dev) =20 static int dw_i2c_plat_probe(struct platform_device *pdev) { + u32 flags =3D (uintptr_t)device_get_match_data(&pdev->dev); struct device *device =3D &pdev->dev; struct i2c_adapter *adap; struct dw_i2c_dev *dev; int irq, ret; =20 - irq =3D platform_get_irq(pdev, 0); - if (irq < 0) + irq =3D platform_get_irq_optional(pdev, 0); + if (irq =3D=3D -ENXIO) + flags |=3D ACCESS_POLLING; + else if (irq < 0) return irq; =20 dev =3D devm_kzalloc(device, sizeof(*dev), GFP_KERNEL); if (!dev) return -ENOMEM; =20 - dev->flags =3D (uintptr_t)device_get_match_data(device); if (device_property_present(device, "wx,i2c-snps-model")) - dev->flags =3D MODEL_WANGXUN_SP | ACCESS_POLLING; + flags =3D MODEL_WANGXUN_SP | ACCESS_POLLING; =20 dev->dev =3D device; dev->irq =3D irq; + dev->flags =3D flags; platform_set_drvdata(pdev, dev); =20 ret =3D dw_i2c_plat_request_regs(dev); --=20 2.47.2