From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [4/7] dmaengine: sprd: Add device validation to support multiple controllers From: Baolin Wang Message-Id: Date: Mon, 15 Apr 2019 20:14:58 +0800 To: dan.j.williams@intel.com, vkoul@kernel.org Cc: eric.long@unisoc.com, orsonzhai@gmail.com, zhang.lyra@gmail.com, broonie@kernel.org, baolin.wang@linaro.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org List-ID: RnJvbTogRXJpYyBMb25nIDxlcmljLmxvbmdAdW5pc29jLmNvbT4KClNpbmNlIHdlIGNhbiBzdXBw b3J0IG11bHRpcGxlIERNQSBlbmdpbmUgY29udHJvbGxlcnMsIHdlIHNob3VsZCBhZGQKZGV2aWNl IHZhbGlkYXRpb24gaW4gZmlsdGVyIGZ1bmN0aW9uIHRvIGNoZWNrIGlmIHRoZSBjb3JyZWN0IGNv bnRyb2xsZXIKdG8gYmUgcmVxdWVzdGVkLgoKU2lnbmVkLW9mZi1ieTogRXJpYyBMb25nIDxlcmlj LmxvbmdAdW5pc29jLmNvbT4KU2lnbmVkLW9mZi1ieTogQmFvbGluIFdhbmcgPGJhb2xpbi53YW5n QGxpbmFyby5vcmc+Ci0tLQogZHJpdmVycy9kbWEvc3ByZC1kbWEuYyB8ICAgIDUgKysrKysKIDEg ZmlsZSBjaGFuZ2VkLCA1IGluc2VydGlvbnMoKykKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2RtYS9z cHJkLWRtYS5jIGIvZHJpdmVycy9kbWEvc3ByZC1kbWEuYwppbmRleCAwZjkyZTYwLi45Zjk5ZDRi IDEwMDY0NAotLS0gYS9kcml2ZXJzL2RtYS9zcHJkLWRtYS5jCisrKyBiL2RyaXZlcnMvZG1hL3Nw cmQtZG1hLmMKQEAgLTEwMjAsOCArMTAyMCwxMyBAQCBzdGF0aWMgdm9pZCBzcHJkX2RtYV9mcmVl X2Rlc2Moc3RydWN0IHZpcnRfZG1hX2Rlc2MgKnZkKQogc3RhdGljIGJvb2wgc3ByZF9kbWFfZmls dGVyX2ZuKHN0cnVjdCBkbWFfY2hhbiAqY2hhbiwgdm9pZCAqcGFyYW0pCiB7CiAJc3RydWN0IHNw cmRfZG1hX2NobiAqc2NoYW4gPSB0b19zcHJkX2RtYV9jaGFuKGNoYW4pOworCXN0cnVjdCBvZl9w aGFuZGxlX2FyZ3MgKmRtYV9zcGVjID0KKwkJY29udGFpbmVyX29mKHBhcmFtLCBzdHJ1Y3Qgb2Zf cGhhbmRsZV9hcmdzLCBhcmdzWzBdKTsKIAl1MzIgc2xhdmVfaWQgPSAqKHUzMiAqKXBhcmFtOwog CisJaWYgKGNoYW4tPmRldmljZS0+ZGV2LT5vZl9ub2RlICE9IGRtYV9zcGVjLT5ucCkKKwkJcmV0 dXJuIGZhbHNlOworCiAJc2NoYW4tPmRldl9pZCA9IHNsYXZlX2lkOwogCXJldHVybiB0cnVlOwog fQo= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8D484C10F12 for ; 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Mon, 15 Apr 2019 05:15:30 -0700 (PDT) Received: from baolinwangubtpc.spreadtrum.com ([117.18.48.102]) by smtp.gmail.com with ESMTPSA id 6sm64157155pfj.95.2019.04.15.05.15.25 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 15 Apr 2019 05:15:29 -0700 (PDT) From: Baolin Wang To: dan.j.williams@intel.com, vkoul@kernel.org Cc: eric.long@unisoc.com, orsonzhai@gmail.com, zhang.lyra@gmail.com, broonie@kernel.org, baolin.wang@linaro.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 4/7] dmaengine: sprd: Add device validation to support multiple controllers Date: Mon, 15 Apr 2019 20:14:58 +0800 Message-Id: X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: In-Reply-To: References: Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Message-ID: <20190415121458.GVo5Is6dhZOHvzcjPX9OXI0_Tr0OGL4QKxYPdvsQ9-k@z> From: Eric Long Since we can support multiple DMA engine controllers, we should add device validation in filter function to check if the correct controller to be requested. Signed-off-by: Eric Long Signed-off-by: Baolin Wang --- drivers/dma/sprd-dma.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c index 0f92e60..9f99d4b 100644 --- a/drivers/dma/sprd-dma.c +++ b/drivers/dma/sprd-dma.c @@ -1020,8 +1020,13 @@ static void sprd_dma_free_desc(struct virt_dma_desc *vd) static bool sprd_dma_filter_fn(struct dma_chan *chan, void *param) { struct sprd_dma_chn *schan = to_sprd_dma_chan(chan); + struct of_phandle_args *dma_spec = + container_of(param, struct of_phandle_args, args[0]); u32 slave_id = *(u32 *)param; + if (chan->device->dev->of_node != dma_spec->np) + return false; + schan->dev_id = slave_id; return true; } -- 1.7.9.5