From patchwork Tue Dec 5 17:04:51 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sinan Kaya X-Patchwork-Id: 10093381 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 83AF76035E for ; Tue, 5 Dec 2017 17:05:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6E55528582 for ; Tue, 5 Dec 2017 17:05:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 617C1285E0; Tue, 5 Dec 2017 17:05:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D339827F4B for ; Tue, 5 Dec 2017 17:05:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753016AbdLERFe (ORCPT ); Tue, 5 Dec 2017 12:05:34 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:56464 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752911AbdLERF3 (ORCPT ); Tue, 5 Dec 2017 12:05:29 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 58A6B6087D; Tue, 5 Dec 2017 17:05:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1512493528; bh=yQwkXBGrSgUP1IcWbb7G5iyE/DqFffMV9jY+3N/py+Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dTqVqekcbBwEnBLtCqa1Va1t2SuC4aQFyPg95f8KxtcsWeuq2xZfDG0eAySK6j/k8 rDibFNlWdkNrkF6/M6amXJKb+9bQYXHqEBvHp08fubeSkAZUAY32FGHrKNgc3NTzHS L+0uLsE3vDoEKdNYADNHG4fzpaGovinyg0CWiE6k= Received: from drakthul.qualcomm.com (global_nat1_iad_fw.qualcomm.com [129.46.232.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: okaya@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id E4F4E6087D; Tue, 5 Dec 2017 17:05:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1512493527; bh=yQwkXBGrSgUP1IcWbb7G5iyE/DqFffMV9jY+3N/py+Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=C6BwumXH/XOGjr1r9U4pAKE8LbwForKoo8IPKJO08k4eGXz0eRAr4yHgUy89TrXZs +vM50eCd1j40wtbnmBLZpefD7BsKDbprf5lJ3LSExJY2gI0edKvwgrr/zXceZXpY0M CSK8eerkloEYg2vP+K/AsBfHaf1iqhPz5KT/azDk= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org E4F4E6087D Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=okaya@codeaurora.org From: Sinan Kaya To: dmaengine@vger.kernel.org, timur@codeaurora.org, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Sinan Kaya , Andy Gross , David Brown , Dan Williams , Vinod Koul , linux-soc@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-kernel@vger.kernel.org (open list) Subject: [PATCH V6 6/7] dmaengine: qcom_hidma: Add support for the new revision Date: Tue, 5 Dec 2017 12:04:51 -0500 Message-Id: <1512493493-6464-7-git-send-email-okaya@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1512493493-6464-1-git-send-email-okaya@codeaurora.org> References: <1512493493-6464-1-git-send-email-okaya@codeaurora.org> Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add support for probing the newer HW and also organize MSI capable hardware into an array for maintenance reasons. Signed-off-by: Sinan Kaya --- drivers/dma/qcom/hidma.c | 34 +++++++++++++--------------------- 1 file changed, 13 insertions(+), 21 deletions(-) diff --git a/drivers/dma/qcom/hidma.c b/drivers/dma/qcom/hidma.c index e366985..c146c6d 100644 --- a/drivers/dma/qcom/hidma.c +++ b/drivers/dma/qcom/hidma.c @@ -50,6 +50,7 @@ #include #include #include +#include #include #include #include @@ -104,6 +105,9 @@ static void hidma_free(struct hidma_dev *dmadev) module_param(nr_desc_prm, uint, 0644); MODULE_PARM_DESC(nr_desc_prm, "number of descriptors (default: 0)"); +enum hidma_cap { + HIDMA_MSI_CAP = 1, +}; /* process completed descriptors */ static void hidma_process_completed(struct hidma_chan *mchan) @@ -736,25 +740,12 @@ static int hidma_request_msi(struct hidma_dev *dmadev, #endif } -static bool hidma_msi_capable(struct device *dev) +static bool hidma_test_capability(struct device *dev, enum hidma_cap test_cap) { - struct acpi_device *adev = ACPI_COMPANION(dev); - const char *of_compat; - int ret = -EINVAL; - - if (!adev || acpi_disabled) { - ret = device_property_read_string(dev, "compatible", - &of_compat); - if (ret) - return false; + enum hidma_cap cap; - ret = strcmp(of_compat, "qcom,hidma-1.1"); - } else { -#ifdef CONFIG_ACPI - ret = strcmp(acpi_device_hid(adev), "QCOM8062"); -#endif - } - return ret == 0; + cap = (enum hidma_cap) device_get_match_data(dev); + return cap ? ((cap & test_cap) > 0) : 0; } static int hidma_probe(struct platform_device *pdev) @@ -834,8 +825,7 @@ static int hidma_probe(struct platform_device *pdev) * Determine the MSI capability of the platform. Old HW doesn't * support MSI. */ - msi = hidma_msi_capable(&pdev->dev); - + msi = hidma_test_capability(&pdev->dev, HIDMA_MSI_CAP); device_property_read_u32(&pdev->dev, "desc-count", &dmadev->nr_descriptors); @@ -953,7 +943,8 @@ static int hidma_remove(struct platform_device *pdev) #if IS_ENABLED(CONFIG_ACPI) static const struct acpi_device_id hidma_acpi_ids[] = { {"QCOM8061"}, - {"QCOM8062"}, + {"QCOM8062", HIDMA_MSI_CAP}, + {"QCOM8063", HIDMA_MSI_CAP}, {}, }; MODULE_DEVICE_TABLE(acpi, hidma_acpi_ids); @@ -961,7 +952,8 @@ static int hidma_remove(struct platform_device *pdev) static const struct of_device_id hidma_match[] = { {.compatible = "qcom,hidma-1.0",}, - {.compatible = "qcom,hidma-1.1",}, + {.compatible = "qcom,hidma-1.1", .data = (void *)(HIDMA_MSI_CAP),}, + {.compatible = "qcom,hidma-1.2", .data = (void *)(HIDMA_MSI_CAP),}, {}, }; MODULE_DEVICE_TABLE(of, hidma_match);