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: [1/4] dmaengine: qcom: bam_dma: make bam clk optional From: Srinivas Kandagatla Message-Id: Date: Wed, 17 Jan 2018 09:46:31 +0000 To: Sagar Dharia , Vinod Koul , Andy Gross , dmaengine@vger.kernel.org Cc: Rob Herring , Mark Rutland , David Brown , Dan Williams , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, yanhe@quicinc.com, ramkri@qti.qualcomm.com, sdharia@quicinc.com List-ID: T24gMTYvMDEvMTggMTk6MzgsIFNhZ2FyIERoYXJpYSB3cm90ZToKPiAKPiBPbiAxLzE2LzIwMTgg MTI6MDIgUE0sIHNyaW5pdmFzLmthbmRhZ2F0bGFAbGluYXJvLm9yZyB3cm90ZToKPj4gRnJvbTog U3Jpbml2YXMgS2FuZGFnYXRsYSA8c3Jpbml2YXMua2FuZGFnYXRsYUBsaW5hcm8ub3JnPgo+Pgo+ PiBXaGVuIEJBTSBpcyByZW1vdGVseSBjb250cm9sbGVkIGl0IGRvZXMgbm90IHNvdW5kIGNvcnJl Y3QgdG8gY29udHJvbAo+PiBpdHMgY2xrIG9uIExpbnV4IHNpZGUuIE1ha2UgaXQgb3B0aW9uYWws IHNvIHRoYXQgaXRzIG5vdCBtYWRhdG9yeQo+PiBmb3IgcmVtb3RlIGNvbnRyb2xsZWQgQkFNIGlu c3RhbmNlcy4KPj4KPj4gU2lnbmVkLW9mZi1ieTogU3Jpbml2YXMgS2FuZGFnYXRsYSA8c3Jpbml2 YXMua2FuZGFnYXRsYUBsaW5hcm8ub3JnPgo+PiAtLS0KPj4gICBkcml2ZXJzL2RtYS9xY29tL2Jh bV9kbWEuYyB8IDE1ICsrKysrKysrLS0tLS0tLQo+PiAgIDEgZmlsZSBjaGFuZ2VkLCA4IGluc2Vy dGlvbnMoKyksIDcgZGVsZXRpb25zKC0pCj4+Cj4+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2RtYS9x Y29tL2JhbV9kbWEuYyBiL2RyaXZlcnMvZG1hL3Fjb20vYmFtX2RtYS5jCj4+IGluZGV4IDAzYzRl YjNmZDMxNC4uNzhlNDg4ZThmOTZkIDEwMDY0NAo+PiAtLS0gYS9kcml2ZXJzL2RtYS9xY29tL2Jh bV9kbWEuYwo+PiArKysgYi9kcml2ZXJzL2RtYS9xY29tL2JhbV9kbWEuYwo+PiBAQCAtMTE4MCwx MyArMTE4MCwxNCBAQCBzdGF0aWMgaW50IGJhbV9kbWFfcHJvYmUoc3RydWN0IAo+PiBwbGF0Zm9y bV9kZXZpY2UgKnBkZXYpCj4+ICAgICAgICAgICAgICAgICAgICAgICAgICAgInFjb20sY29udHJv bGxlZC1yZW1vdGVseSIpOwo+PiAgICAgICBiZGV2LT5iYW1jbGsgPSBkZXZtX2Nsa19nZXQoYmRl di0+ZGV2LCAiYmFtX2NsayIpOwo+PiAtICAgIGlmIChJU19FUlIoYmRldi0+YmFtY2xrKSkKPj4g LSAgICAgICAgcmV0dXJuIFBUUl9FUlIoYmRldi0+YmFtY2xrKTsKPj4gLQo+PiAtICAgIHJldCA9 IGNsa19wcmVwYXJlX2VuYWJsZShiZGV2LT5iYW1jbGspOwo+PiAtICAgIGlmIChyZXQpIHsKPj4g LSAgICAgICAgZGV2X2VycihiZGV2LT5kZXYsICJmYWlsZWQgdG8gcHJlcGFyZS9lbmFibGUgY2xv Y2tcbiIpOwo+PiAtICAgICAgICByZXR1cm4gcmV0Owo+PiArICAgIGlmIChJU19FUlIoYmRldi0+ YmFtY2xrKSkgewo+PiArICAgICAgICBiZGV2LT5iYW1jbGsgPSBOVUxMOwo+PiArICAgIH0gZWxz ZSB7Cj4+ICsgICAgICAgIHJldCA9IGNsa19wcmVwYXJlX2VuYWJsZShiZGV2LT5iYW1jbGspOwo+ PiArICAgICAgICBpZiAocmV0KSB7Cj4+ICsgICAgICAgICAgICBkZXZfZXJyKGJkZXYtPmRldiwg ImZhaWxlZCB0byBwcmVwYXJlL2VuYWJsZSBjbG9ja1xuIik7Cj4+ICsgICAgICAgICAgICByZXR1 cm4gcmV0Owo+PiArICAgICAgICB9Cj4gSSBiZWxpZXZlIHlvdSBjYW4gYWxzbyBrZWVwIHBtX3J1 bnRpbWUgZGlzYWJsZWQgaWYgQkFNIGlzIHJlbW90ZWx5IAo+IGNvbnRyb2xsZWQuCgpZZXMsIHRo YXQncyBhbm90aGVyIHRvcGljIHdoaWNoIHNob3VsZCBiZSBmaXhlZCB0b28uIEkgd2lsbCBhZGQg dGhhdCAKcGF0Y2ggaW4gbmV4dCB2ZXJzaW9uLgoKdGhhbmtzLApzcmluaQo+IAo+IFRoYW5rcwo+ IFNhZ2FyCj4+ICAgICAgIH0KPj4gICAgICAgcmV0ID0gYmFtX2luaXQoYmRldik7Cj4KLS0tClRv IHVuc3Vic2NyaWJlIGZyb20gdGhpcyBsaXN0OiBzZW5kIHRoZSBsaW5lICJ1bnN1YnNjcmliZSBk bWFlbmdpbmUiIGluCnRoZSBib2R5IG9mIGEgbWVzc2FnZSB0byBtYWpvcmRvbW9Admdlci5rZXJu ZWwub3JnCk1vcmUgbWFqb3Jkb21vIGluZm8gYXQgIGh0dHA6Ly92Z2VyLmtlcm5lbC5vcmcvbWFq b3Jkb21vLWluZm8uaHRtbAo=