From e24328974a88aa8541e94e8bb8dfa2ade1b3c45d Mon Sep 17 00:00:00 2001 From: Donggeun Yoo Date: Wed, 2 Sep 2026 00:21:26 +0900 Subject: iio: proximity: vl53l0x-i2c: claim direct mode for raw reads 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 Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/arc/axs101.txt | 7 +++++ Documentation/devicetree/bindings/arc/axs103.txt | 8 ++++++ Documentation/devicetree/bindings/arc/eznps.txt | 7 +++++ Documentation/devicetree/bindings/arc/hsdk.txt | 7 +++++ Documentation/devicetree/bindings/arc/pct.txt | 20 +++++++++++++ .../devicetree/bindings/arc/snps,archs-pct.yaml | 33 ++++++++++++++++++++++ 6 files changed, 82 insertions(+) create mode 100644 Documentation/devicetree/bindings/arc/axs101.txt create mode 100644 Documentation/devicetree/bindings/arc/axs103.txt create mode 100644 Documentation/devicetree/bindings/arc/eznps.txt create mode 100644 Documentation/devicetree/bindings/arc/hsdk.txt create mode 100644 Documentation/devicetree/bindings/arc/pct.txt create mode 100644 Documentation/devicetree/bindings/arc/snps,archs-pct.yaml (limited to 'Documentation/devicetree/bindings/arc') diff --git a/Documentation/devicetree/bindings/arc/axs101.txt b/Documentation/devicetree/bindings/arc/axs101.txt new file mode 100644 index 000000000..48290d517 --- /dev/null +++ b/Documentation/devicetree/bindings/arc/axs101.txt @@ -0,0 +1,7 @@ +Synopsys DesignWare ARC Software Development Platforms Device Tree Bindings +--------------------------------------------------------------------------- + +SDP Main Board with an AXC001 CPU Card hoisting ARC700 core in silicon + +Required root node properties: + - compatible = "snps,axs101", "snps,arc-sdp"; diff --git a/Documentation/devicetree/bindings/arc/axs103.txt b/Documentation/devicetree/bindings/arc/axs103.txt new file mode 100644 index 000000000..6eea862e7 --- /dev/null +++ b/Documentation/devicetree/bindings/arc/axs103.txt @@ -0,0 +1,8 @@ +Synopsys DesignWare ARC Software Development Platforms Device Tree Bindings +--------------------------------------------------------------------------- + +SDP Main Board with an AXC003 FPGA Card which can contain various flavours of +HS38x cores. + +Required root node properties: + - compatible = "snps,axs103", "snps,arc-sdp"; diff --git a/Documentation/devicetree/bindings/arc/eznps.txt b/Documentation/devicetree/bindings/arc/eznps.txt new file mode 100644 index 000000000..1aa50c640 --- /dev/null +++ b/Documentation/devicetree/bindings/arc/eznps.txt @@ -0,0 +1,7 @@ +EZchip NPS Network Processor Platforms Device Tree Bindings +--------------------------------------------------------------------------- + +Appliance main board with NPS400 ASIC. + +Required root node properties: + - compatible = "ezchip,arc-nps"; diff --git a/Documentation/devicetree/bindings/arc/hsdk.txt b/Documentation/devicetree/bindings/arc/hsdk.txt new file mode 100644 index 000000000..be50654bb --- /dev/null +++ b/Documentation/devicetree/bindings/arc/hsdk.txt @@ -0,0 +1,7 @@ +Synopsys DesignWare ARC HS Development Kit Device Tree Bindings +--------------------------------------------------------------------------- + +ARC HSDK Board with quad-core ARC HS38x4 in silicon. + +Required root node properties: + - compatible = "snps,hsdk"; diff --git a/Documentation/devicetree/bindings/arc/pct.txt b/Documentation/devicetree/bindings/arc/pct.txt new file mode 100644 index 000000000..4e874d9a3 --- /dev/null +++ b/Documentation/devicetree/bindings/arc/pct.txt @@ -0,0 +1,20 @@ +* ARC Performance Counters + +The ARC700 can be configured with a pipeline performance monitor for counting +CPU and cache events like cache misses and hits. Like conventional PCT there +are 100+ hardware conditions dynamically mapped to up to 32 counters + +Note that: + * The ARC 700 PCT does not support interrupts; although HW events may be + counted, the HW events themselves cannot serve as a trigger for a sample. + +Required properties: + +- compatible : should contain + "snps,arc700-pct" + +Example: + +pmu { + compatible = "snps,arc700-pct"; +}; diff --git a/Documentation/devicetree/bindings/arc/snps,archs-pct.yaml b/Documentation/devicetree/bindings/arc/snps,archs-pct.yaml new file mode 100644 index 000000000..532f7584f --- /dev/null +++ b/Documentation/devicetree/bindings/arc/snps,archs-pct.yaml @@ -0,0 +1,33 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arc/snps,archs-pct.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ARC HS Performance Counters + +maintainers: + - Aryabhatta Dey + +description: + The ARC HS can be configured with a pipeline performance monitor for counting + CPU and cache events like cache misses and hits. Like conventional PCT there + are 100+ hardware conditions dynamically mapped to up to 32 counters. + It also supports overflow interrupts. + +properties: + compatible: + const: snps,archs-pct + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + +required: + - compatible + - reg + - clocks + +additionalProperties: false -- cgit v1.3.1