From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp.codeaurora.org ([198.145.29.96]:56384 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752340AbdLACxO (ORCPT ); Thu, 30 Nov 2017 21:53:14 -0500 From: Sinan Kaya To: linux-pci@vger.kernel.org, timur@codeaurora.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), dmaengine@vger.kernel.org (open list:DMA GENERIC OFFLOAD ENGINE SUBSYSTEM), linux-kernel@vger.kernel.org (open list) Subject: [PATCH V4 5/5] dmaengine: qcom_hidma: Add identity register support Date: Thu, 30 Nov 2017 21:52:56 -0500 Message-Id: <1512096776-22883-6-git-send-email-okaya@codeaurora.org> In-Reply-To: <1512096776-22883-1-git-send-email-okaya@codeaurora.org> References: <1512096776-22883-1-git-send-email-okaya@codeaurora.org> Sender: linux-pci-owner@vger.kernel.org List-ID: The location for destination event channel register has been relocated from offset 0x28 to 0x40. Update the code accordingly. Signed-off-by: Sinan Kaya --- drivers/dma/qcom/hidma.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/dma/qcom/hidma.c b/drivers/dma/qcom/hidma.c index c146c6d..963cc52 100644 --- a/drivers/dma/qcom/hidma.c +++ b/drivers/dma/qcom/hidma.c @@ -107,6 +107,7 @@ static void hidma_free(struct hidma_dev *dmadev) enum hidma_cap { HIDMA_MSI_CAP = 1, + HIDMA_IDENTITY_CAP, }; /* process completed descriptors */ @@ -838,7 +839,10 @@ static int hidma_probe(struct platform_device *pdev) if (!dmadev->nr_descriptors) dmadev->nr_descriptors = HIDMA_NR_DEFAULT_DESC; - dmadev->chidx = readl(dmadev->dev_trca + 0x28); + if (hidma_test_capability(&pdev->dev, HIDMA_IDENTITY_CAP)) + dmadev->chidx = readl(dmadev->dev_trca + 0x40); + else + dmadev->chidx = readl(dmadev->dev_trca + 0x28); /* Set DMA mask to 64 bits. */ rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); @@ -944,7 +948,7 @@ static int hidma_remove(struct platform_device *pdev) static const struct acpi_device_id hidma_acpi_ids[] = { {"QCOM8061"}, {"QCOM8062", HIDMA_MSI_CAP}, - {"QCOM8063", HIDMA_MSI_CAP}, + {"QCOM8063", (HIDMA_MSI_CAP | HIDMA_IDENTITY_CAP)}, {}, }; MODULE_DEVICE_TABLE(acpi, hidma_acpi_ids); @@ -953,7 +957,8 @@ 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", .data = (void *)(HIDMA_MSI_CAP),}, - {.compatible = "qcom,hidma-1.2", .data = (void *)(HIDMA_MSI_CAP),}, + {.compatible = "qcom,hidma-1.2", + .data = (void *)(HIDMA_MSI_CAP | HIDMA_IDENTITY_CAP),}, {}, }; MODULE_DEVICE_TABLE(of, hidma_match); -- 1.9.1