iio: proximity: vl53l0x-i2c: claim direct mode for raw readsgrafted

vl53l0x_read_raw() starts a single-shot ranging measurement and reads
back the result. Once the triggered buffer is enabled the sensor runs in
continuous mode and its data-ready interrupt is routed to the trigger,
so a concurrent in_distance_raw read disturbs the streaming setup and
never gets its completion, returning -ETIMEDOUT.

The original submission claimed direct mode here, but it was dropped
during review because the driver had no buffer support at the time [1].
Continuous (buffered) mode was later added without restoring the
claim [2], reintroducing the conflict.

Reject direct reads while buffered capture is active by claiming direct
mode around the measurement, as the vl53l1x sibling already does.

Fixes: 762186c6e7b1 ("iio: proximity: vl53l0x-i2c: Added continuous mode support")
Link: https://lore.kernel.org/linux-iio/20180911160300.GA9212@himanshu-Vostro-3559/ [1]
Link: https://lore.kernel.org/linux-iio/20240909101508.263085-3-abhashkumarjha123@gmail.com/ [2]
Signed-off-by: Donggeun Yoo <donggeunyoo.kernel@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>

1 files changed, 67 insertions, 0 deletions

diff --git a/drivers/acpi/pmic/Kconfig b/drivers/acpi/pmic/Kconfig
new file mode 100644
index 000000000..f84b8f603
--- /dev/null
+++ b/drivers/acpi/pmic/Kconfig
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: GPL-2.0
+
+menuconfig PMIC_OPREGION
+	bool "PMIC (Power Management Integrated Circuit) operation region support"
+	help
+	  Select this option to enable support for ACPI operation
+	  region of the PMIC chip. The operation region can be used
+	  to control power rails and sensor reading/writing on the
+	  PMIC chip.
+
+if PMIC_OPREGION
+
+config BYTCRC_PMIC_OPREGION
+	bool "ACPI operation region support for Bay Trail Crystal Cove PMIC"
+	depends on INTEL_SOC_PMIC
+	help
+	  This config adds ACPI operation region support for the Bay Trail
+	  version of the Crystal Cove PMIC.
+
+config CHTCRC_PMIC_OPREGION
+	bool "ACPI operation region support for Cherry Trail Crystal Cove PMIC"
+	depends on INTEL_SOC_PMIC
+	help
+	  This config adds ACPI operation region support for the Cherry Trail
+	  version of the Crystal Cove PMIC.
+
+config XPOWER_PMIC_OPREGION
+	bool "ACPI operation region support for XPower AXP288 PMIC"
+	depends on MFD_AXP20X_I2C && IOSF_MBI=y
+	help
+	  This config adds ACPI operation region support for XPower AXP288 PMIC.
+
+config BXT_WC_PMIC_OPREGION
+	bool "ACPI operation region support for BXT WhiskeyCove PMIC"
+	depends on INTEL_SOC_PMIC_BXTWC
+	help
+	  This config adds ACPI operation region support for BXT WhiskeyCove PMIC.
+
+config CHT_WC_PMIC_OPREGION
+	bool "ACPI operation region support for CHT Whiskey Cove PMIC"
+	depends on INTEL_SOC_PMIC_CHTWC
+	help
+	  This config adds ACPI operation region support for CHT Whiskey Cove PMIC.
+
+config CHT_DC_TI_PMIC_OPREGION
+	bool "ACPI operation region support for Dollar Cove TI PMIC"
+	depends on INTEL_SOC_PMIC_CHTDC_TI
+	help
+	  This config adds ACPI operation region support for Dollar Cove TI PMIC.
+
+endif	# PMIC_OPREGION
+
+config TPS68470_PMIC_OPREGION
+	bool "ACPI operation region support for TPS68470 PMIC"
+	depends on INTEL_SKL_INT3472
+	help
+	  This config adds ACPI operation region support for TI TPS68470 PMIC.
+	  TPS68470 device is an advanced power management unit that powers
+	  a Compact Camera Module (CCM), generates clocks for image sensors,
+	  drives a dual LED for flash and incorporates two LED drivers for
+	  general purpose indicators.
+	  This driver enables ACPI operation region support control voltage
+	  regulators and clocks.
+
+	  This option is a bool as it provides an ACPI operation
+	  region, which must be available before any of the devices
+	  using this, are probed.