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Fri, 17 Jul 2026 03:58:53 -0400 Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" Date: Fri, 17 Jul 2026 15:58:44 +0800 Message-ID: CC: Jonathan Cameron , David Lechner , =?utf-8?q?Nuno_S=C3=A1?= , "Andy Shevchenko" , Michael Hennerich , Rob Herring , "Krzysztof Kozlowski" , Conor Dooley , "Philipp Zabel" , , , , Subject: Re: [PATCH 1/3] iio: ABI: add DAC high_z powerdown mode and current output entries From: Kim Seer Paller To: Andy Shevchenko X-Mailer: aerc 0.8.2 References: <20260716-iio-ad5710r-upstream-v1-0-e848a4bb701f@analog.com> <20260716-iio-ad5710r-upstream-v1-1-e848a4bb701f@analog.com> In-Reply-To: X-ADIRuleOP-NewSCL: Rule Triggered X-Authority-Analysis: v=2.4 cv=YqE/gYYX c=1 sm=1 tr=0 ts=6a59e0cf cx=c_pps a=3WNzaoukacrqR9RwcOSAdA==:117 a=3WNzaoukacrqR9RwcOSAdA==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=0sLvza09kfJOxVLZPwjg:22 a=Z0pTeXoby7EwIRygza74:22 a=tdLBGZj91k5LuzOrVg0A:9 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: QOa9qxn6_HDcDbqv9B46cTz6fUGHEKoQ X-Proofpoint-ORIG-GUID: QOa9qxn6_HDcDbqv9B46cTz6fUGHEKoQ X-Proofpoint-Spam-Info: AW1haW4tMjYwNzE3MDA3OCBTYWx0ZWRfXx3P0aBL9iuas Zkd/TCs3IumXtAo8lGrVafLYp5gGHUnGKIFNq4852CPtrKPcLWMyLf63gMl5lkEpqK1UTFboFcn 2eQpoFFTwVdYXpcRZU5KGZIPPuhkGOUdqhzHAqhNpvKPOdGF9m4x X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzE3MDA3OCBTYWx0ZWRfX9uid8WQoCHfr ckiv8spe8xEglophEQzeobRVEYj0sp9HbsuSJq8SjMhmYh5WAWY/qSKWDkKK4zow1B9Nv8KuEUU 0grFgCa926t5oJalfjTbi3yzbFNOCj844Cr7tUf1XMauRvxPM2pWNF25KM83j/WYhycD7a0eaDC Y36SkTa3RPur4MQOkgOck47r4/9PO3qbA30W1otvwcYH8pJyMeml2iqj95ZcRSER2IkzCfh1Lo4 j6mcOvfL1QSVfbfCxaO1is+T0+fB54rMiNOflzFapO5VEVHavAM0/NpGbB8zvrMZxHZOynkc5LY BQwrxToDYNsSbzi9+uTRvNA+NH7SXBws6sHQ2zJFR+ORvdKk49iM+UzR1lcZuWtBc0ULenNQTg1 lRJtz5+EX8jUvmPo4Y80Ih/S40v/bAGS2o4Wu86R04o3lq5Sbm+e4AIo+p+zXQuP3YRG4m0AfmO DYlPAfiWnF0rA67hWrQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-17_02,2026-07-15_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 lowpriorityscore=0 bulkscore=0 malwarescore=0 priorityscore=1501 impostorscore=0 adultscore=0 clxscore=1015 suspectscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607170078 On Fri Jul 17, 2026 at 1:59 AM PST, Andy Shevchenko wrote: > On Thu, Jul 16, 2026 at 03:59:25PM +0800, Kim Seer Paller wrote: > > Add high_z powerdown mode for DACs with high impedance output in > > current mode (IDAC) and 15kohm_to_gnd resistor to GND. Also add > > out_currentY_powerdown_mode, out_currentY_powerdown_mode_available, > > and out_currentY_powerdown entries to document current output > > powerdown support. > > ... > > > 125kohm_to_gnd: connected to ground via an 125kOhm resistor, > > 500kohm_to_gnd: connected to ground via a 500kOhm resistor, > > 640kohm_to_gnd: connected to ground via a 640kOhm resistor, > > - three_state: left floating. > > + three_state: left floating, > > + high_z: left floating. > > It may be less churn if just located before three_state, but hey, why?! > three_state is a synonym to high_z. What's the impediment to use it? You are right, thanks. I added high_z because that is the term the datashee= t uses for current output powerdown mode. Since three_state means the same=20 thing I will drop the high_z addition and use the existing three_state. > > --=20 > With Best Regards, > Andy Shevchenko