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AJvYcCW7FYhqqm4P3W6rYDD5d1g219+HLaAVTRQ518j9LZKxQfoY8NFTBH3zk7M9GVwrQtBAIQ5eaqGBcT+I@vger.kernel.org, AJvYcCWrMsOFORQAylWSmG2EZdFnJgdojjHfOrW9+B9fzdJfqpWXj4/FoNWLLVpX96/TtIETpVZF43LvYSOP@vger.kernel.org, AJvYcCWt6AaXwZCNNRBCh0L5wUGON6FlS1+R53qpCBZ1Csba251gNodVsTCJKLzle8BYaSKJdA2GRf4D7sJ/9U8K@vger.kernel.org X-Gm-Message-State: AOJu0YzX6HyY2lJEJpjvxODdi5qHbGUNVtvjzTfHpZfpM6gSN5fonerd 1MZHlULzTBXGHOqQBY+yzWvFvesYRrM67Rt5Xh3vi/47DovpTZaau4vevHvP X-Google-Smtp-Source: AGHT+IH6QlPf0c6ztccp5zye1I+rJwIhnxrhIVUrE/U2zUAMlS2cVf9rlvp4D1Xd2iX5jOQ4HGOkBw== X-Received: by 2002:a05:6512:3084:b0:539:8a50:6ee8 with SMTP id 2adb3069b0e04-53d862f84cdmr2869650e87.57.1731080020655; Fri, 08 Nov 2024 07:33:40 -0800 (PST) Received: from localhost ([94.19.228.143]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-53d82678474sm662970e87.42.2024.11.08.07.33.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Nov 2024 07:33:40 -0800 (PST) Date: Fri, 8 Nov 2024 18:33:37 +0300 From: Andrey Skvortsov To: Chen-Yu Tsai Cc: Matthias Brugger , AngeloGioacchino Del Regno , Wolfram Sang , Rob Herring , Saravana Kannan , Benson Leung , Tzung-Bi Shih , chrome-platform@lists.linux.dev, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, Douglas Anderson , Johan Hovold , Jiri Kosina , Andy Shevchenko , linux-i2c@vger.kernel.org Subject: Re: [PATCH v11 5/7] i2c: of-prober: Add GPIO support to simple helpers Message-ID: Mail-Followup-To: Andrey Skvortsov , Chen-Yu Tsai , Matthias Brugger , AngeloGioacchino Del Regno , Wolfram Sang , Rob Herring , Saravana Kannan , Benson Leung , Tzung-Bi Shih , chrome-platform@lists.linux.dev, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, Douglas Anderson , Johan Hovold , Jiri Kosina , Andy Shevchenko , linux-i2c@vger.kernel.org References: <20241106093335.1582205-1-wenst@chromium.org> <20241106093335.1582205-6-wenst@chromium.org> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20241106093335.1582205-6-wenst@chromium.org> On 24-11-06 17:33, Chen-Yu Tsai wrote: > Add GPIO support to the simple helpers for the I2C OF component prober. > Components that the prober intends to probe likely require their > regulator supplies be enabled, and GPIOs be toggled to enable them or > bring them out of reset before they will respond to probe attempts. > Regulator supplies were handled in the previous patch. > > The assumption is that the same class of components to be probed are > always connected in the same fashion with the same regulator supply > and GPIO. The names may vary due to binding differences, but the > physical layout does not change. > > This supports at most one GPIO pin. The user must specify the GPIO name, > the polarity, and the amount of time to wait after the GPIO is toggled. > Devices with more than one GPIO pin likely require specific power > sequencing beyond what generic code can easily support. > > Signed-off-by: Chen-Yu Tsai > Reviewed-by: Douglas Anderson > Reviewed-by: Andy Shevchenko > --- > Changes since v10: > - Added include of linux/types.h for |bool| Tested-by: Andrey Skvortsov Patches 1-5 from this patchset were successfully tested with hardware prober for i2c magnetometer on PinePhone on next-20241107. [1] 1. https://github.com/AndreySV/linux-stable/commits/in-kernel-i2c-hwprober-magnetometer/ -- Best regards, Andrey Skvortsov