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[144.178.202.139]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8fc769111fsm667098666b.57.2026.02.20.01.19.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Feb 2026 01:19:13 -0800 (PST) From: Luca Weiss Date: Fri, 20 Feb 2026 10:19:07 +0100 Subject: [PATCH v2 3/5] thermal/drivers/generic-adc: Allow probe without TZ registration Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260220-bat-temp-adc-v2-3-fe34ed4ea851@fairphone.com> References: <20260220-bat-temp-adc-v2-0-fe34ed4ea851@fairphone.com> In-Reply-To: <20260220-bat-temp-adc-v2-0-fe34ed4ea851@fairphone.com> To: Jonathan Cameron , David Lechner , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , "Rafael J. Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Laxman Dewangan , Bjorn Andersson , Konrad Dybcio , Hans de Goede , Jens Reidel , Casey Connolly Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, Luca Weiss X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1771579150; l=2004; i=luca.weiss@fairphone.com; s=20250611; h=from:subject:message-id; bh=YivXcgaeSy4QpelRV9DOtIokhuwXBYKEbFlVEzS3lpM=; b=qWYp7BdWMKuAhoenfEM06j8Q/89bWGGCajKBj/3ld6dfa9CRhyH0+n0CikO8ZiIZiFZpeKwzw Irfto7/gBVzDLJtZTCfThE3vEpXL8m+GOfcstnRd4K7t2IcaEUXOXw7 X-Developer-Key: i=luca.weiss@fairphone.com; a=ed25519; pk=O1aw+AAust5lEmgrNJ1Bs7PTY0fEsJm+mdkjExA69q8= If the devicetree node is not referenced in a zone under /thermal-zones, devm_thermal_of_zone_register will fail with -ENODEV. Since the driver is now also registering as an IIO device[0], allow the probe to continue without the thermal zone. We also can't use gadc_thermal_get_temp anymore because we haven't necessarily initialized tz_dev. [0] commit 3762f5851ac5 ("thermal/drivers/thermal-generic-adc: Add temperat= ure sensor channel") Signed-off-by: Luca Weiss --- drivers/thermal/thermal-generic-adc.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/thermal/thermal-generic-adc.c b/drivers/thermal/therma= l-generic-adc.c index 7c844589b153..4852e584468b 100644 --- a/drivers/thermal/thermal-generic-adc.c +++ b/drivers/thermal/thermal-generic-adc.c @@ -86,14 +86,16 @@ static int gadc_thermal_read_raw(struct iio_dev *indio_= dev, int *val, int *val2, long mask) { struct gadc_thermal_info *gtinfo =3D iio_priv(indio_dev); + int iio_val; int ret; =20 switch (mask) { case IIO_CHAN_INFO_PROCESSED: - ret =3D gadc_thermal_get_temp(gtinfo->tz_dev, val); - if (ret) + ret =3D iio_read_channel_processed(gtinfo->channel, &iio_val); + if (ret < 0) return ret; =20 + *val =3D gadc_thermal_adc_to_temp(gtinfo, iio_val); return IIO_VAL_INT; =20 default: @@ -197,14 +199,14 @@ static int gadc_thermal_probe(struct platform_device = *pdev) &gadc_thermal_ops); if (IS_ERR(gti->tz_dev)) { ret =3D PTR_ERR(gti->tz_dev); - if (ret !=3D -EPROBE_DEFER) - dev_err(dev, - "Thermal zone sensor register failed: %d\n", - ret); - return ret; - } + if (ret =3D=3D -EPROBE_DEFER) + return ret; =20 - devm_thermal_add_hwmon_sysfs(dev, gti->tz_dev); + dev_info(dev, "Thermal zone sensor register failed: %d\n", + ret); + } else { + devm_thermal_add_hwmon_sysfs(dev, gti->tz_dev); + } =20 return gadc_iio_register(&pdev->dev, gti); } --=20 2.53.0