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[37.212.8.167]) by smtp.gmail.com with ESMTPSA id l13-20020a05600c2ccd00b003a2f2bb72d5sm9141750wmc.45.2022.10.31.12.02.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 Oct 2022 12:02:30 -0700 (PDT) From: Siarhei Volkau Cc: Paul Cercueil , Siarhei Volkau , Dmitry Torokhov , Rob Herring , Krzysztof Kozlowski , Artur Rojek , linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH 0/2] Input: adc-joystick: add detachable devices support Date: Mon, 31 Oct 2022 22:01:57 +0300 Message-Id: <20221031190159.1341027-1-lis8215@gmail.com> X-Mailer: git-send-email 2.36.1 MIME-Version: 1.0 X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1748231317273715835?= X-GMAIL-MSGID: =?utf-8?q?1748231317273715835?= For detachable or lock-able joysticks the ADC lanes might be biased to GND or AVDD when the joystick is detached/locked. One such kind of joystick is found in the Ritmix RZX-50 handheld. The joystick is non-detachable, although ADC lane biased to power supply when the "Hold" switch is activated. To avoid reporting old/broken measurements valid-range is introduced. When measured value is outside valid-range the driver reports safe center position for corresponding axis. Siarhei Volkau (2): dt-bindings: adc-joystick: add valid-range Input: adc-joystick - add detachable devices support .../bindings/input/adc-joystick.yaml | 62 +++++++++++++++++++ drivers/input/joystick/adc-joystick.c | 58 ++++++++++++++++- 2 files changed, 119 insertions(+), 1 deletion(-)