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: [2/2] typec: tcpm: Add option to maintain current limit at Vsafe5V From: Jack Pham Message-Id: <20180914184242.GC13306@jackp-linux.qualcomm.com> Date: Fri, 14 Sep 2018 11:42:42 -0700 To: Badhri Jagan Sridharan Cc: Heikki Krogerus , Greg Kroah-Hartman , USB , LKML , Guenter Roeck List-ID: SGkgQmFkaHJpLAoKT24gVGh1LCBTZXAgMTMsIDIwMTggYXQgMDQ6Mzg6MTBQTSAtMDcwMCwgQmFk aHJpIEphZ2FuIFNyaWRoYXJhbiB3cm90ZToKPiBPbiBUaHUsIFNlcCAxMywgMjAxOCBhdCAxMDow NyBBTSBKYWNrIFBoYW0gPGphY2twQGNvZGVhdXJvcmEub3JnPiB3cm90ZToKPiA+IE9uIFRodSwg U2VwIDEzLCAyMDE4IGF0IDY6NDMgQU0gQmFkaHJpIEphZ2FuIFNyaWRoYXJhbgo+ID4gPiBZZWFo IHRoYXRzIGZvciB0aGUgc291cmNlLiBCdXQgZm9yIHNpbmssIFNheSBpZiB0aGUgc291cmNlIGlz bnQgUEQsIHRoZW4sCj4gPiA+IHNpbmsgaW5pdGlhdGVkIGhhcmQgcmVzZXRzIGhhcHBlbiBkdXJp bmcgdGhlIGNvbm5lY3Rpb24uIFNpbmsgd291bGQgaGFyZCByZXNldAo+ID4gPiBjb3VwbGUgb2Yg dGltZXMgYmVmb3JlIGRlZW1pbmcgdGhhdCB0aGUgcGFydG5lciBpcyBub24gUEQuIFdoZW4gY29u bmVjdGVkCj4gPiA+IHRvIFR5cGUtQSBwb3J0cy9ub24tcGQgcGFydG5lciwgdmJ1cyBpcyBub3Qg Z29pbmcgdG8gbGlrZWx5IGRyb3Agc28gdGhlcmUgaXNudAo+ID4gPiBhIHJlYXNvbiB0byBzZXRj aGFyZ2UgdG8gZmFsc2Ugb3IgZHJvcCB0aGUgaW5wdXQgY3VycmVudCBsaW1pdC4gRG8geW91IGFn cmVlID8KPiA+Cj4gPiBTdXJlIHRoYXQgbWFrZXMgc2Vuc2UuIEluIHRoaXMgY2FzZSBJIHdvbmRl ciBpZiBUQ1BNIGV2ZW4gbmVlZHMgdG8gY2FsbAo+ID4gc2V0X2NoYXJnZShmYWxzZSkgY29uc2lk ZXJpbmcgaXQgZG9lcyBub3QgeWV0IGtub3cgaWYgdGhlIHBhcnRuZXIgaXMgUEQKPiA+IGNhcGFi bGUgb3Igbm90LiBGb3Igc3VyZSwgaWYgdGhlIHBhcnRuZXIgaXMgUEQgY2FwYWJsZSBhbmQgY29u dHJhY3QgaGFkCj4gPiBiZWVuIHByZXZpb3VzbHkgZXN0YWJsaXNoZWQsIHdlJ2QgZGVmaW5pdGVs eSBuZWVkIHRvIHNldF9jdXJyZW50X2xpbWl0KCkKPiA+IHRvIGRlZmF1bHQgbGV2ZWxzIGFuZC9v ciB0dXJuIG9mZiBjaGFyZ2luZy4KPiA+Cj4gPiBCdXQgaW4gdGhlIGNhc2Ugb2YgaGFyZCByZXNl dCBhdHRlbXB0cyB0byB0cnkgdG8gZGV0ZXJtaW5lIGlmIHRoZSBzb3VyY2UKPiA+IHdpbGwgc2Vu ZCBpdHMgY2FwYWJpbGl0aWVzICh0aGVyZWJ5IGJlaW5nIFBEIGNhcGFibGUpLCB3b3VsZG4ndCB0 aGUKPiA+IGluaXRpYWwgZGVmYXVsdCBjdXJyZW50IGxpbWl0cyBzdGlsbCBiZSBpbiBwbGFjZT8g SSB0aGluayB0aGlzIGlzIHRoZQo+ID4gcG9pbnQgeW91J3JlIHRyeWluZyB0byBtYWtlLCB0aGF0 IHRoZXJlIGlzIG5vIG5lZWQgdG8gZGlzcnVwdCBjaGFyZ2luZwo+ID4gaWYgYSBoYXJkIHJlc2V0 IGlzIG5vdCBnb2luZyB0byBjYXVzZSBWQlVTIHRvIHJlc2V0Lgo+IAo+IFllcyB0aGF0J3Mgcmln aHQgISBJIHdhc250IHN1cmUgaG93IHRvIHB1dCB0aGF0IGluIHdvcmRzLiBUaGFua3MgZm9yCj4g ZG9pbmcgdGhhdCAhCj4gWW91IGRvIGNvbmN1ciByaWdodCA/CgpZZXMuCgo+ID4gVG8gbWUgaXQg c291bmRzIGxpa2Ugd2hhdCB5b3UncmUgdHJ5aW5nIHRvIGRvIG1ha2VzIHNlbnNlIG9ubHkgaWYg eW91Cj4gPiBjYW4gbWFrZSBhIHJ1bi10aW1lIGRldGVybWluYXRpb24gb2YgYSBwYXJ0bmVyJ3Mg UEQgY2FwYWJpbGl0eSwgYW5kIG5vdAo+ID4gYmFzZWQgb24gYSBjb25maWcgb3B0aW9uLgo+IAo+ IFllcyB0aGlzIHNob3VsZCBiZSBwb3NzaWJsZS4gcG9ydC0+cGRfY2FwYWJsZSBhbHJlYWR5IGhh cyB0aGF0IGluZm8uCj4gCj4gVG8gc3VtIGl0IHVwOgo+IGlmIHRoZSBwYXJ0bmVyIGlzIHBkIGNh cGFibGUsIHNldCBjaGFyZ2UgdG8gZmFsc2UgaW4gU05LX0hBUkRfUkVTRVRfU0lOS19PRkYgYW5k Cj4gcmVhZGp1c3QgY3VycmVudCBsaW1pdHMgdG8gZGVmYXVsdCBpbiBTTktfSEFSRF9SRVNFVF9T SU5LX09OIGFuZCB0dXJuCj4gb24gY2hhcmdpbmcuCj4gCj4gSWYgcGFydG5lciBpcyBub3QgcGQg Y2FwYWJsZSwgZG8gbm90IHR1cm4gb2ZmIGNoYXJnaW5nIG5vciBhZGp1c3QKPiBjdXJyZW50IGxp bWl0IGFzIGhvc3QgcG9ydCBpcwo+IG5vdCBnb2luZyB0byByZXNwb25kIHRvIGhhcmQgcmVzZXQu Cj4gCj4gRG9lcyBpdCBtYWtlIHNlbnNlID8KClJpZ2h0LCBhbHRob3VnaCB0aGUgIm5vdCBwZCBj YXBhYmxlIiBwYXRoIGNvdWxkIGFsc28gbWVhbiB0aGUgcGFydG5lciBpcwpQRCBjYXBhYmxlIGJ1 dCBpdCBpcyBub3QgZGV0ZXJtaW5lZCB5ZXQuIEZvciBleGFtcGxlOiBpZiBhIHNpbmsgaXMKY29u bmVjdGVkIHRvIGEgUEQgc291cmNlLCBlc3RhYmxpc2hlZCBhIGNvbnRyYWN0LCBhbmQgdGhlIHNp bmsgcmVib290cwphbmQgaGFzIHRvIGluaXRpYWxpemUgVENQTSBhZ2Fpbi4gQXNzdW1pbmcgdGhl IHNpbmsgbmV2ZXIgZGlzY29ubmVjdGVkCmZyb20gQ0Mgd2hlbiByZWJvb3RpbmcsIHRoZSBzb3Vy Y2Ugd29uJ3QgYXV0b21hdGljYWxseSByZS1zZW5kIGl0cwpTb3VyY2UgQ2FwYWJpbGl0aWVzIGFz IGl0IHdpbGwgc3RpbGwgYmUgaW4gaXRzIHByZXZpb3VzIHN0YXRlKCopLiBUaGUKc2luayBUQ1BN IGhvd2V2ZXIgd291bGQgc2VuZCBhIGhhcmQgcmVzZXQgaW4gb3JkZXIgdG8gdHJ5IHRvCihyZSll c3RhYmxpc2ggYSBjb250cmFjdCwgc28gaGVyZSBpcyB3aGVyZSB0aGlzIHBhdGggb3ZlcmxhcHMg d2l0aCB0aGUKbm90LXBkLWNhcGFibGUgY2FzZS4gSW4gdGhpcyBjYXNlIEkgdGhpbmsgaXQgbWln aHQgYmUgcHJvcGVyIHRvIHJlYWRqdXN0CmN1cnJlbnQgbGltaXRzIHRvIGRlZmF1bHQgYWxzbyB1 bmxlc3MgaXQgd2FzIGFscmVhZHkgZG9uZSBlYXJsaWVyLS1JIHNlZQppdCBpcyBkb25lIGluIHRj cG1fcmVzZXRfcG9ydCgpIGFuZCBpbiBTTktfRElTQ09WRVJZLCBzbyB5b3UgbWlnaHQgYmUKY292 ZXJlZCBoZXJlLgoKVGhlIHF1ZXN0aW9uIEkgaGF2ZSBpcyB3aGV0aGVyIHlvdSBzdGlsbCBuZWVk IHRvIGNvbnNpZGVyIGNhbGxpbmcKc2V0X2NoYXJnZShmYWxzZSkgZm9yIHRoaXMgZXhhbXBsZS4K CigqKSBKdXN0IHRob3VnaHQgb2Ygb25lIG1vcmUgdGhpbmcsIHdoYXQgaWYgdGhlIHByZXZpb3Vz IGNvbnRyYWN0IHdhcwpuZWdvdGlhdGVkIGF0IGdyZWF0ZXIgdGhhbiA1ViBWQlVTPyBIb3cgZG9l cyB0aGUgc2luayBUQ1BNIGhhbmRsZQpzZXR0aW5nIGNoYXJnaW5nIHBhcmFtZXRlcnMgYWZ0ZXIg YSByZWJvb3QgYnV0IHByaW9yIHRvIGhhcmQgcmVzZXQ/CgpKYWNrCg==