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| author | Hans de Goede <hansg@kernel.org> | 2025-08-04 15:32:40 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-15 12:04:17 +0200 |
| commit | 8a2ca33ed56a7e5c6619e9e44e946cb927011557 (patch) | |
| tree | 5b4b27f37955200c16243799a90da35f2ff9277c /drivers/mfd | |
| parent | 3ecf627da8ddf2f62ec526e17c8d0789af7ff7bd (diff) | |
| download | linux-8a2ca33ed56a7e5c6619e9e44e946cb927011557.tar.gz linux-8a2ca33ed56a7e5c6619e9e44e946cb927011557.tar.bz2 linux-8a2ca33ed56a7e5c6619e9e44e946cb927011557.zip | |
mfd: intel_soc_pmic_chtdc_ti: Set use_single_read regmap_config flag
commit 64e0d839c589f4f2ecd2e3e5bdb5cee6ba6bade9 upstream.
Testing has shown that reading multiple registers at once (for 10-bit
ADC values) does not work. Set the use_single_read regmap_config flag
to make regmap split these for us.
This should fix temperature opregion accesses done by
drivers/acpi/pmic/intel_pmic_chtdc_ti.c and is also necessary for
the upcoming drivers for the ADC and battery MFD cells.
Fixes: 6bac0606fdba ("mfd: Add support for Cherry Trail Dollar Cove TI PMIC")
Cc: stable@vger.kernel.org
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
Link: https://lore.kernel.org/r/20250804133240.312383-1-hansg@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/intel_soc_pmic_chtdc_ti.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mfd/intel_soc_pmic_chtdc_ti.c b/drivers/mfd/intel_soc_pmic_chtdc_ti.c index 4c1a68c9f575..6daf33e07ea0 100644 --- a/drivers/mfd/intel_soc_pmic_chtdc_ti.c +++ b/drivers/mfd/intel_soc_pmic_chtdc_ti.c @@ -82,6 +82,8 @@ static const struct regmap_config chtdc_ti_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = 0xff, + /* The hardware does not support reading multiple registers at once */ + .use_single_read = true, }; static const struct regmap_irq chtdc_ti_irqs[] = { |