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Fri, 23 Aug 2019 07:56:06 -0500 Received: from DFLE108.ent.ti.com (10.64.6.29) by DFLE103.ent.ti.com (10.64.6.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Fri, 23 Aug 2019 07:56:05 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE108.ent.ti.com (10.64.6.29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Fri, 23 Aug 2019 07:56:06 -0500 Received: from feketebors.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id x7NCtwkg092319; Fri, 23 Aug 2019 07:56:03 -0500 From: Peter Ujfalusi To: , Subject: [PATCH 2/5] dmaengine: ti: edma: Only reset region0 access registers Date: Fri, 23 Aug 2019 15:56:15 +0300 Message-ID: <20190823125618.8133-3-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190823125618.8133-1-peter.ujfalusi@ti.com> References: <20190823125618.8133-1-peter.ujfalusi@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190823_055608_939349_58A22BC2 X-CRM114-Status: GOOD ( 12.62 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, dan.j.williams@intel.com, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Region0 is used by Linux, do not reset other registers controlling access for other shadow regions. Signed-off-by: Peter Ujfalusi --- drivers/dma/ti/edma.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/dma/ti/edma.c b/drivers/dma/ti/edma.c index 1aae95cc0d4b..87450431f336 100644 --- a/drivers/dma/ti/edma.c +++ b/drivers/dma/ti/edma.c @@ -2434,11 +2434,10 @@ static int edma_probe(struct platform_device *pdev) edma_assign_priority_to_queue(ecc, queue_priority_mapping[i][0], queue_priority_mapping[i][1]); - for (i = 0; i < ecc->num_region; i++) { - edma_write_array2(ecc, EDMA_DRAE, i, 0, 0x0); - edma_write_array2(ecc, EDMA_DRAE, i, 1, 0x0); - edma_write_array(ecc, EDMA_QRAE, i, 0x0); - } + edma_write_array2(ecc, EDMA_DRAE, 0, 0, 0x0); + edma_write_array2(ecc, EDMA_DRAE, 0, 1, 0x0); + edma_write_array(ecc, EDMA_QRAE, 0, 0x0); + ecc->info = info; /* Init the dma device and channels */ -- Peter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. 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