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 <jackp@codeaurora.org>
Message-Id: <20180913170746.GB13306@jackp-linux.qualcomm.com>
Date: Thu, 13 Sep 2018 10:07:46 -0700
To: Badhri Jagan Sridharan <badhri@google.com>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, USB <linux-usb@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>, Guenter Roeck <linux@roeck-us.net>
List-ID: <linux-usb.vger.kernel.org>

T24gVGh1LCBTZXAgMTMsIDIwMTggYXQgNjo0MyBBTSBCYWRocmkgSmFnYW4gU3JpZGhhcmFuCjxi
YWRocmlAZ29vZ2xlLmNvbT4gd3JvdGU6Cj4KPiBPbiBXZWQsIFNlcCAxMiwgMjAxOCBhdCAxMToz
OSBQTSBKYWNrIFBoYW0gPGphY2twQGNvZGVhdXJvcmEub3JnPiB3cm90ZToKPiA+Cj4gPiBIZWxs
byBCYWRocmksCj4gPgo+ID4gT24gV2VkLCBTZXAgMTIsIDIwMTggYXQgMDc6MTE6MTNQTSAtMDcw
MCwgQmFkaHJpIEphZ2FuIFNyaWRoYXJhbiB3cm90ZToKPiA+ID4gRHVyaW5nIGhhcmQgcmVzZXQs
IFRDUE0gdHVybnMgb2ZmIHRoZSBjaGFyZ2luZyBwYXRoLgo+ID4gPiBUaGUgc3BlYyBwcm92aWRl
cyBhbiBvcHRpb24gZm9yIFNpbmsgdG8gZWl0aGVyIGRyb3AgdG8gdlNhZmU1ViBvciB2U2FmZTBW
Lgo+ID4KPiA+IFRoaXMgZG9lc24ndCBtYWtlIHNlbnNlLiBCeSBkZWZpbml0aW9uIHRoZSBzaW5r
IGlzbid0IHNvdXJjaW5nIFZCVVMsIHNvCj4gPiBob3cgY2FuIGl0IGNvbnRyb2wgd2hldGhlciB0
byBhbGxvdyB0aGUgdm9sdGFnZSB0byBiZSA1ViBvciAwVj8KPgo+IFRoZSB3YXkgSSB1bmRlcnN0
YW5kIGl0LCB0aGlzIGlzIGZvciB0aGUgY3VycmVudCBsaW1pdHMgdGhhdCBjYW4gYmUKPiBzZXQg
b24gdGhlIFNpbmsgc2lkZS4KPiBEdXJpbmcgaGFyZCByZXNldCwgc2luayBoYXMgdG8gZmFsbGJh
Y2sgdG8gVlNhZmU1ViBvciBWU2FmZTBWIGlmCj4gaGlnaGVyIHBkIGNvbnRyYWN0IHdhcyBuZWdv
dGlhdGVkLgoKT2ssIHlvdSBhcmUgdGFsa2luZyBhYm91dCBzaW5rIGN1cnJlbnQgZHJhdyBsaW1p
dHMgYnV0IHZTYWZlezAsNX1WIGFyZQp2b2x0YWdlIGRlZmluaXRpb25zIHNvIHRoZXNlIGFyZSBv
cnRob2dvbmFsLiBBZ2FpbiwgdGhlIHNpbmsgY2FuJ3QKZGlyZWN0bHkgZGljdGF0ZSB0aGUgdm9s
dGFnZSB0aGF0J3MgYmVpbmcgc291cmNlZCBzbyBJIGRvbid0IHNlZSBob3cgaXQKaGFzIGEgY2hv
aWNlIGhlcmUuIElmIGEgUEQgY29udHJhY3Qgd2FzIG5lZ290aWF0ZWQgZm9yIGdyZWF0ZXIgdGhh
biA1VgphbmQgYSBoYXJkIHJlc2V0IGhhcHBlbnMgdGhlbiB5ZXMgdGhlIHZvbHRhZ2Ugd291bGQg
ZmFsbCB0byAwViBhbmQgdGhlbgpyaXNlIGJhY2sgdG8gNVYgYW5kIGR1cmluZyB0aGlzIHRpbWUg
c2luayBuZWVkcyB0byBkcmF3IGFwcHJvcHJpYXRlCmN1cnJlbnQuCgo+ID4gPiBGcm9tIFVTQl9Q
RF9SM18wCj4gPiA+IDIuNi4yIFNpbmsgT3BlcmF0aW9uCj4gPiA+IC4uCj4gPiA+IFNlcmlvdXMg
ZXJyb3JzIGFyZSBoYW5kbGVkIGJ5IEhhcmQgUmVzZXQgU2lnbmFsaW5nIGlzc3VlZCBieSBlaXRo
ZXIgUG9ydAo+ID4gPiBQYXJ0bmVyLiBBIEhhcmQgUmVzZXQ6Cj4gPiA+IHJlc2V0cyBwcm90b2Nv
bCBhcyBmb3IgYSBTb2Z0IFJlc2V0IGJ1dCBhbHNvIHJldHVybnMgdGhlIHBvd2VyIHN1cHBseSB0
bwo+ID4gPiBVU0IgRGVmYXVsdCBPcGVyYXRpb24gKHZTYWZlMFYgb3IgdlNhZmU1ViBvdXRwdXQp
IGluIG9yZGVyIHRvIHByb3RlY3QgdGhlCj4gPiA+IFNpbmsuCj4gPgo+ID4gSSBjYW4gc2VlIGhv
dyB0aGUgd29yZGluZyBoZXJlICJ2U2FmZTBWICpvciogdlNhZmU1ViIgaXMgbWlzbGVhZGluZywg
YXMKPiA+IEkgdGhpbmsgaXQgYWN0dWFsbHkgaXMgYm90aC4gSW4gbGF0ZXIgcGFydHMgb2YgdGhl
IHNwZWMsIHRoZSBzb3VyY2Uncwo+ID4gVkJVUyBiZWhhdmlvciBpcyB3ZWxsIGRlZmluZWQgaW4g
dGhhdCBpdCBtdXN0IGZpcnN0IGRyb3AgdG8gdlNhZmUwVgo+ID4gYW5kIHRoZW4gcmV0dXJuIHRv
IHZTYWZlNVYuIFBsZWFzZSByZWZlciB0byBzZWN0aW9uIDcuMS41Lgo+Cj4KPiBZZWFoIHRoYXRz
IGZvciB0aGUgc291cmNlLiBCdXQgZm9yIHNpbmssIFNheSBpZiB0aGUgc291cmNlIGlzbnQgUEQs
IHRoZW4sCj4gc2luayBpbml0aWF0ZWQgaGFyZCByZXNldHMgaGFwcGVuIGR1cmluZyB0aGUgY29u
bmVjdGlvbi4gU2luayB3b3VsZCBoYXJkIHJlc2V0Cj4gY291cGxlIG9mIHRpbWVzIGJlZm9yZSBk
ZWVtaW5nIHRoYXQgdGhlIHBhcnRuZXIgaXMgbm9uIFBELiBXaGVuIGNvbm5lY3RlZAo+IHRvIFR5
cGUtQSBwb3J0cy9ub24tcGQgcGFydG5lciwgdmJ1cyBpcyBub3QgZ29pbmcgdG8gbGlrZWx5IGRy
b3Agc28gdGhlcmUgaXNudAo+IGEgcmVhc29uIHRvIHNldGNoYXJnZSB0byBmYWxzZSBvciBkcm9w
IHRoZSBpbnB1dCBjdXJyZW50IGxpbWl0LiBEbyB5b3UgYWdyZWUgPwoKU3VyZSB0aGF0IG1ha2Vz
IHNlbnNlLiBJbiB0aGlzIGNhc2UgSSB3b25kZXIgaWYgVENQTSBldmVuIG5lZWRzIHRvIGNhbGwK
c2V0X2NoYXJnZShmYWxzZSkgY29uc2lkZXJpbmcgaXQgZG9lcyBub3QgeWV0IGtub3cgaWYgdGhl
IHBhcnRuZXIgaXMgUEQKY2FwYWJsZSBvciBub3QuIEZvciBzdXJlLCBpZiB0aGUgcGFydG5lciBp
cyBQRCBjYXBhYmxlIGFuZCBjb250cmFjdCBoYWQKYmVlbiBwcmV2aW91c2x5IGVzdGFibGlzaGVk
LCB3ZSdkIGRlZmluaXRlbHkgbmVlZCB0byBzZXRfY3VycmVudF9saW1pdCgpCnRvIGRlZmF1bHQg
bGV2ZWxzIGFuZC9vciB0dXJuIG9mZiBjaGFyZ2luZy4KCkJ1dCBpbiB0aGUgY2FzZSBvZiBoYXJk
IHJlc2V0IGF0dGVtcHRzIHRvIHRyeSB0byBkZXRlcm1pbmUgaWYgdGhlIHNvdXJjZQp3aWxsIHNl
bmQgaXRzIGNhcGFiaWxpdGllcyAodGhlcmVieSBiZWluZyBQRCBjYXBhYmxlKSwgd291bGRuJ3Qg
dGhlCmluaXRpYWwgZGVmYXVsdCBjdXJyZW50IGxpbWl0cyBzdGlsbCBiZSBpbiBwbGFjZT8gSSB0
aGluayB0aGlzIGlzIHRoZQpwb2ludCB5b3UncmUgdHJ5aW5nIHRvIG1ha2UsIHRoYXQgdGhlcmUg
aXMgbm8gbmVlZCB0byBkaXNydXB0IGNoYXJnaW5nCmlmIGEgaGFyZCByZXNldCBpcyBub3QgZ29p
bmcgdG8gY2F1c2UgVkJVUyB0byByZXNldC4KClRvIG1lIGl0IHNvdW5kcyBsaWtlIHdoYXQgeW91
J3JlIHRyeWluZyB0byBkbyBtYWtlcyBzZW5zZSBvbmx5IGlmIHlvdQpjYW4gbWFrZSBhIHJ1bi10
aW1lIGRldGVybWluYXRpb24gb2YgYSBwYXJ0bmVyJ3MgUEQgY2FwYWJpbGl0eSwgYW5kIG5vdApi
YXNlZCBvbiBhIGNvbmZpZyBvcHRpb24uCgpUaGFua3MsCkphY2sK