From patchwork Wed Oct 16 11:48:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 13838250 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11]) (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 46DB2207A1E; Wed, 16 Oct 2024 11:50:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.11 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729079442; cv=none; b=oB7n/gzPrBYdyvUz7blxNrV3k9/9PbW/jdybJQTyyt7uqwwnuqc/enc3noWKF+DXW8T1kAixkNK0nI4dVwOdnaJM/KKsO/gIFQeXaAS2I7MXQa2rnk5jfbaFSjgJOw9Tf2JD3C7kwChD2RM1k3tRB2LC3KCS9NSIJBiR1gkfv0M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729079442; c=relaxed/simple; bh=0u2TnzL2XRFhwUYIzbKAOkJS2xr/yU0W8afUZRGNPaE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ZoU5AFTMLyNtEktjlkZSLVNymB5xIp8odnpKWUutoX8az+1BspX2a/is7z6d8AIlN2uEJz8bBMXAIJ/34amx8a/kRtSdDfAhaEp+a+81oVaTgUjDDuVPwoZ6FN1q3yuyzLlsDamLh2DEJcxMTwDjUda/Xj74r7gRXGfgejnKV8E= 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=APiEVBuf; arc=none smtp.client-ip=198.175.65.11 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="APiEVBuf" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1729079441; x=1760615441; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=0u2TnzL2XRFhwUYIzbKAOkJS2xr/yU0W8afUZRGNPaE=; b=APiEVBufGwnyTWDS4VHCPk3B4tS88INovbDQm2g07rerbPS3AcJ2OPGq 3Uw6Xkb4ttPk2X4GsqPcBHgy/kP+U+AozM/ZZOpeEFSl96i0zB9//9cH2 vxPFB5J9Wdo/jAyR6u6JuMpmSEM5nM5qgdEO+46IXPfLEjCzkcmW75MO8 JiGU0ILTKuaQJj3tSvkMwnR4WT1upOF6hkgq8/PagiOvXPDzcYMyHRX/b K1icanqJ+gdWJfk+XAJRPsX5DsGMHFwMhulywYUilaHsQnhutSRKPq5wV yFuE9wxJT1S1zZLntyHmGPeAJwwnrLb7Q8RRHa5a6hpoMX7BvEsQ7TVJP w==; X-CSE-ConnectionGUID: xrOqo2lzTrCqDZ6+RzczqQ== X-CSE-MsgGUID: qm6H+QmBQEeud9u3Ir+mlQ== X-IronPort-AV: E=McAfee;i="6700,10204,11222"; a="39069928" X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="39069928" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Oct 2024 04:50:38 -0700 X-CSE-ConnectionGUID: tzkZgP1QT3qv7viCmFrrcw== X-CSE-MsgGUID: VxbUQNe0T56sbYSGfKY7wA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,207,1725346800"; d="scan'208";a="82974933" Received: from black.fi.intel.com ([10.237.72.28]) by orviesa005.jf.intel.com with ESMTP; 16 Oct 2024 04:50:36 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id D20C01C4; Wed, 16 Oct 2024 14:50:34 +0300 (EEST) From: Andy Shevchenko To: Andy Shevchenko , linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Cc: Mika Westerberg , Andy Shevchenko , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Ferry Toth Subject: [PATCH v1 3/3] platform/x86: intel_scu_ipc: Save a copy of the entire struct intel_scu_ipc_data Date: Wed, 16 Oct 2024 14:48:26 +0300 Message-ID: <20241016115033.858574-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.43.0.rc1.1336.g36b5255a03ac In-Reply-To: <20241016115033.858574-1-andriy.shevchenko@linux.intel.com> References: <20241016115033.858574-1-andriy.shevchenko@linux.intel.com> Precedence: bulk X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Save a copy of the entire struct intel_scu_ipc_data for easier maintenance in case of expanding (adding new members become simpler). Signed-off-by: Andy Shevchenko --- drivers/platform/x86/intel_scu_ipc.c | 33 ++++++++++++++-------------- 1 file changed, 17 insertions(+), 16 deletions(-) diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c index ffb0a2524388..e86a255f70ba 100644 --- a/drivers/platform/x86/intel_scu_ipc.c +++ b/drivers/platform/x86/intel_scu_ipc.c @@ -57,11 +57,11 @@ struct intel_scu_ipc_dev { struct device dev; - struct resource mem; struct module *owner; - int irq; void __iomem *ipc_base; struct completion cmd_complete; + + struct intel_scu_ipc_data data; }; #define IPC_STATUS 0x04 @@ -256,7 +256,7 @@ static inline int ipc_wait_for_interrupt(struct intel_scu_ipc_dev *scu) static int intel_scu_ipc_check_status(struct intel_scu_ipc_dev *scu) { - return scu->irq > 0 ? ipc_wait_for_interrupt(scu) : busy_loop(scu); + return scu->data.irq > 0 ? ipc_wait_for_interrupt(scu) : busy_loop(scu); } static struct intel_scu_ipc_dev *intel_scu_ipc_get(struct intel_scu_ipc_dev *scu) @@ -536,13 +536,13 @@ static irqreturn_t ioc(int irq, void *dev_id) static void intel_scu_ipc_release(struct device *dev) { - struct intel_scu_ipc_dev *scu; + struct intel_scu_ipc_dev *scu = container_of(dev, struct intel_scu_ipc_dev, dev); + struct intel_scu_ipc_data *data = &scu->data; - scu = container_of(dev, struct intel_scu_ipc_dev, dev); - if (scu->irq > 0) - free_irq(scu->irq, scu); + if (data->irq > 0) + free_irq(data->irq, scu); iounmap(scu->ipc_base); - release_mem_region(scu->mem.start, resource_size(&scu->mem)); + release_mem_region(data->mem.start, resource_size(&data->mem)); kfree(scu); } @@ -563,6 +563,7 @@ __intel_scu_ipc_register(struct device *parent, struct module *owner) { int err; + struct intel_scu_ipc_data *data; struct intel_scu_ipc_dev *scu; void __iomem *ipc_base; @@ -581,25 +582,25 @@ __intel_scu_ipc_register(struct device *parent, scu->dev.class = &intel_scu_ipc_class; scu->dev.release = intel_scu_ipc_release; - if (!request_mem_region(scu_data->mem.start, resource_size(&scu_data->mem), - "intel_scu_ipc")) { + memcpy(&scu->data, scu_data, sizeof(scu->data)); + data = &scu->data; + + if (!request_mem_region(data->mem.start, resource_size(&data->mem), "intel_scu_ipc")) { err = -EBUSY; goto err_free; } - ipc_base = ioremap(scu_data->mem.start, resource_size(&scu_data->mem)); + ipc_base = ioremap(data->mem.start, resource_size(&data->mem)); if (!ipc_base) { err = -ENOMEM; goto err_release; } scu->ipc_base = ipc_base; - scu->mem = scu_data->mem; - scu->irq = scu_data->irq; init_completion(&scu->cmd_complete); - if (scu->irq > 0) { - err = request_irq(scu->irq, ioc, 0, "intel_scu_ipc", scu); + if (data->irq > 0) { + err = request_irq(data->irq, ioc, 0, "intel_scu_ipc", scu); if (err) goto err_unmap; } @@ -622,7 +623,7 @@ __intel_scu_ipc_register(struct device *parent, err_unmap: iounmap(ipc_base); err_release: - release_mem_region(scu_data->mem.start, resource_size(&scu_data->mem)); + release_mem_region(data->mem.start, resource_size(&data->mem)); err_free: kfree(scu); return ERR_PTR(err);