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[76.183.134.35]) by smtp.gmail.com with ESMTPSA id c10sm963359ooi.11.2021.09.16.12.42.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Sep 2021 12:42:13 -0700 (PDT) From: Chris Morgan To: linux-rockchip@lists.infradead.org Cc: lee.jones@linaro.org, robh+dt@kernel.org, heiko@sntech.de, sre@kernel.org, maccraft123mc@gmail.com, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, Chris Morgan Subject: [PATCH v4 RESEND 1/4] dt-bindings: Add Rockchip rk817 battery charger support Date: Thu, 16 Sep 2021 14:42:05 -0500 Message-Id: <20210916194208.10387-2-macroalpha82@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210916194208.10387-1-macroalpha82@gmail.com> References: <20210916194208.10387-1-macroalpha82@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: Chris Morgan Create dt-binding documentation to document rk817 battery and charger usage. New device-tree properties have been added. - rockchip,resistor-sense-micro-ohms: The value in microohms of the sample resistor. - rockchip,sleep-enter-current-microamp: The value in microamps of the sleep enter current. - rockchip,sleep-filter-current: The value in microamps of the sleep filter current. Signed-off-by: Chris Morgan Signed-off-by: Maya Matuszczyk --- .../devicetree/bindings/mfd/rk808.txt | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/Documentation/devicetree/bindings/mfd/rk808.txt b/Documentation/devicetree/bindings/mfd/rk808.txt index 23a17a6663ec..6e1b9fb1f64a 100644 --- a/Documentation/devicetree/bindings/mfd/rk808.txt +++ b/Documentation/devicetree/bindings/mfd/rk808.txt @@ -77,6 +77,37 @@ Optional RK817 properties: - rockchip,mic-in-differential: Telling if the microphone uses differential mode. Should be under the codec child node. +- battery: The child node for the charger to hold additional properties. + If a battery is not in use, this node can be omitted. If a + battery node is used, the following values are required in the + battery node itself: + rockchip,resistor-sense-micro-ohms, + rockchip,sleep-enter-current-microamp, + rockchip,sleep-filter-current-microamp, + Additionally, a phandle to a monitored-battery node that + contains the following is also required: + charge-full-design-microamp-hours, + charge-term-current-microamp, + constant-charge-current-max-microamp, + constant-charge-voltage-max-microvolt, + voltage-max-design-microvolt, + voltage-min-design-microvolt, + and a valid ocv-capacity table. +- rockchip,resistor-sense-micro-ohms: Value in microohms of the battery sense + resistor. The PMIC only supports values + of either 10000 or 20000. This value is + used by the driver to set the correct + divisor value to translate ADC readings + into the proper units of measure. +- rockchip,sleep-enter-current-microamp: Value in microamps of the sleep enter + current for the charger. Value is used + by the driver to calibrate the relax + threshold. +- rockchip,sleep-filter-current-microamp: Value in microamps of the sleep + filter current for the charger. + Value is used by the driver to derive + the sleep sample current. + Optional RK818 properties: - vcc1-supply: The input supply for DCDC_REG1 - vcc2-supply: The input supply for DCDC_REG2 @@ -459,6 +490,13 @@ Example: }; }; + rk817_battery: battery { + monitored-battery = <&battery_cell>; + rockchip,resistor-sense-micro-ohms = <10000>; + rockchip,sleep-enter-current-microamp = <300000>; + rockchip,sleep-filter-current-microamp = <100000>; + }; + rk817_codec: codec { rockchip,mic-in-differential; };