iio: adc: axp288: Override TS pin bias current for some models

BugLink: https://bugs.launchpad.net/bugs/1986718
commit 048058399f19d43cf21de9f5d36cd8144337d004 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

diff --git a/drivers/iio/adc/axp288_adc.c b/drivers/iio/adc/axp288_adc.c
index 5f5e8b39e4d227417060fecff9d732060ae8d89e..84dbe9e2f0effba6e25d895a2089190eeab7222e 100644 (file)
--- 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,
+       },
        {}
 };