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mfd: intel_soc_pmic_chtdc_ti: Set use_single_read regmap_config flag

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[ Upstream commit 64e0d839c589f4f2ecd2e3e5bdb5cee6ba6bade9 ]

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: 6bac0606fd ("mfd: Add support for Cherry Trail Dollar Cove TI PMIC")
Cc: [email protected]
Reviewed-by: Andy Shevchenko <[email protected]>
Signed-off-by: Hans de Goede <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Hans de Goede 2025-10-13 20:17:34 -04:00 • committed by Greg Kroah-Hartman
commit 642ff39838
1 changed files with 2 additions and 0 deletions
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drivers/mfd/intel_soc_pmic_chtdc_ti.c
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@ -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[] = {