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Thu, 19 Jun 2025 07:55:23 -0700 (PDT) Received: from toyger.tail248178.ts.net ([2a0e:c5c1:0:100:b058:b8f5:b561:423c]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4535ebced8asm31343715e9.40.2025.06.19.07.55.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Jun 2025 07:55:22 -0700 (PDT) From: Casey Connolly Date: Thu, 19 Jun 2025 16:55:13 +0200 Subject: [PATCH 05/11] power: supply: qcom_smbx: allow disabling charging Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250619-smb2-smb5-support-v1-5-ac5dec51b6e1@linaro.org> References: <20250619-smb2-smb5-support-v1-0-ac5dec51b6e1@linaro.org> In-Reply-To: <20250619-smb2-smb5-support-v1-0-ac5dec51b6e1@linaro.org> To: Sebastian Reichel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Kees Cook , "Gustavo A. R. Silva" Cc: linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Sebastian Reichel , linux-hardening@vger.kernel.org, Casey Connolly X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1357; i=casey.connolly@linaro.org; h=from:subject:message-id; bh=5zLQjefFl1xoVe/hjAGrMynvu2zXA+YnEoPsGjdFfEE=; b=owEBbQKS/ZANAwAKAQWDMSsZX2S2AcsmYgBoVCTR5g7afOe/JLNddLPQnw8+CLIW9X0RRbizc AD20INQzGuJAjMEAAEKAB0WIQS2UaFGPGq+0GkMVc0FgzErGV9ktgUCaFQk0QAKCRAFgzErGV9k tr3SEACdCNo03bzqVOxk1mrxOgrONtYGGJjUcXqLvWuPXcJs2Dngoaq/Dg3UvuhGe8oGlZwrD+I Fzo4PwcBuIqf8SOc9A/MJsNyS7FJX0oYJrpNI/ta8TSk0i32NTYFCpVtmIRPN+RZ3Fpxzr1uzAL sqHS1LXrjlth/+XJwkdtPyFavnmeKl2MiWY6GtsC/UVNaVMKLtjA0UTv7icN/ozvlSxNhKU6tEU UoLYtPz9Fqwp5QiAKn847s/tKxODhKRYFOPYA0rhB985tOyhpHkYsCk+4IPIwAczS4snyPa9uuB YKy5vRvAT0lsVAd6Vh6UGyXh+ZXIZjXwpibHxG4yRqGSsS3qztTOfeJ/C6bXLEZ6i16fx7cwZaF V/9yRpXf5Aj7TTyBq8C3mXogqE+hn7RxSdnGW+PTlwKxfmzY0LQam5UY81bxoZ8ZzcNa01EP5Zf +kkcNaaVJ3PPSpcRRsVP7UXgNotlvibEA8VFJmQnh3EqmA5Hppn3XJfHoe+BmNnOp8h/YRfH+n4 htj80jTZ3GTFjCOgH7wUAOiQt28xTy/QUPfcVWIKaavS4SKv40NQpof49aLlY2ArkCy635xjTuL Z8IcsmPymiw1jJ1zDNie+RbE6ONBiA4PQ5Q1qAx9yNC5wu5AHv2/5UsRLB+v2rk8SztZdJHlvo8 /lcBkraryspc5oA== X-Developer-Key: i=casey.connolly@linaro.org; a=openpgp; fpr=83B24DA7FE145076BC38BB250CD904EB673A7C47 Hook up USBIN_CMD_IL so that writing "0" to the status register will disable charging, this is useful to let users limit charging automatically. Signed-off-by: Casey Connolly Reviewed-by: Konrad Dybcio --- drivers/power/supply/qcom_smbx.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/power/supply/qcom_smbx.c b/drivers/power/supply/qcom_smbx.c index b1cb925581ec6b8cfca3897be2de5b00a336c920..fc2a8e20435639a9da4d966c43271beaeb57a03f 100644 --- a/drivers/power/supply/qcom_smbx.c +++ b/drivers/power/supply/qcom_smbx.c @@ -692,8 +692,11 @@ static int smb_set_property(struct power_supply *psy, { struct smb_chip *chip = power_supply_get_drvdata(psy); switch (psp) { + case POWER_SUPPLY_PROP_STATUS: + return regmap_update_bits(chip->regmap, chip->base + USBIN_CMD_IL, + USBIN_SUSPEND_BIT, !val->intval); case POWER_SUPPLY_PROP_CURRENT_MAX: return smb_set_current_limit(chip, val->intval); default: dev_err(chip->dev, "No setter for property: %d\n", psp); @@ -704,8 +707,9 @@ static int smb_set_property(struct power_supply *psy, static int smb_property_is_writable(struct power_supply *psy, enum power_supply_property psp) { switch (psp) { + case POWER_SUPPLY_PROP_STATUS: case POWER_SUPPLY_PROP_CURRENT_MAX: return 1; default: return 0;