The patch below does not apply to the 6.12-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.12.y git checkout FETCH_HEAD git cherry-pick -x 64e0d839c589f4f2ecd2e3e5bdb5cee6ba6bade9 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2025101305-cheek-copartner-c523@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 64e0d839c589f4f2ecd2e3e5bdb5cee6ba6bade9 Mon Sep 17 00:00:00 2001 From: Hans de Goede hansg@kernel.org Date: Mon, 4 Aug 2025 15:32:40 +0200 Subject: [PATCH] mfd: intel_soc_pmic_chtdc_ti: Set use_single_read regmap_config flag
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
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[] = {