From 048058399f19d43cf21de9f5d36cd8144337d004 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Fri, 6 May 2022 11:50:40 +0200
Subject: [PATCH] iio: adc: axp288: Override TS pin bias current for some models
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Git-commit: 048058399f19d43cf21de9f5d36cd8144337d004
Patch-mainline: v5.19-rc4
References: git-fixes
Since commit 9bcf15f75cac ("iio: adc: axp288: Fix TS-pin handling") we
preserve the bias current set by the firmware at boot. This fixes issues
we were seeing on various models.
Some models like the Nuvision Solo 10 Draw tablet actually need the
old hardcoded 80ųA bias current for battery temperature monitoring
to work properly.
Add a quirk entry for the Nuvision Solo 10 Draw to the DMI quirk table
to restore setting the bias current to 80ųA on this model.
Fixes: 9bcf15f75cac ("iio: adc: axp288: Fix TS-pin handling")
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=215882
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220506095040.21008-1-hdegoede@redhat.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/iio/adc/axp288_adc.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/iio/adc/axp288_adc.c b/drivers/iio/adc/axp288_adc.c
index a4b8be5b8f88..580361bd9849 100644
--- a/drivers/iio/adc/axp288_adc.c
+++ b/drivers/iio/adc/axp288_adc.c
@@ -196,6 +196,14 @@ static const struct dmi_system_id axp288_adc_ts_bias_override[] = {
},
.driver_data = (void *)(uintptr_t)AXP288_ADC_TS_BIAS_80UA,
},
+ {
+ /* Nuvision Solo 10 Draw */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TMAX"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "TM101W610L"),
+ },
+ .driver_data = (void *)(uintptr_t)AXP288_ADC_TS_BIAS_80UA,
+ },
{}
};
--
2.35.3