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| author | Hans de Goede <hansg@kernel.org> | 2025-10-13 19:22:24 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-19 16:21:50 +0200 |
| commit | 32097a08ab5de53f7c6b43405282a6133a1f2c2c (patch) | |
| tree | 892cf754ac7f8b395afca094ea50b3af216eb380 | |
| parent | 21d79eac5f953319f8693eace9b4893e64a3c21c (diff) | |
| download | linux-32097a08ab5de53f7c6b43405282a6133a1f2c2c.tar.gz linux-32097a08ab5de53f7c6b43405282a6133a1f2c2c.tar.bz2 linux-32097a08ab5de53f7c6b43405282a6133a1f2c2c.zip | |
mfd: intel_soc_pmic_chtdc_ti: Set use_single_read regmap_config flag
[ 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: 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: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 18b763a23df7..5eb790047a4e 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[] = { |