i2c: mux: pca954x: Support multiple devices on a single reset line
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- v2 Latest2 patches 7 repliesIn review
- v11 patch 2 repliesSuperseded
Changes in v2 from the cover letter
- Rework the patch to use a new devicetree property that we don't expect to successfully obtain
Patches in v2 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | dt-bindings: i2c: i2c-mux-pca954x: Define the reset-shared-hogged gpioDocumentation/ | +5 | 0 replies | |
| 2/2 | i2c: mux: pca954x: Support multiple devices on a single reset linedrivers/ | +37 | 7 replies |
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Cover letter [PATCH v2 0/2] i2c: mux: pca954x: Support multiple devices on a single reset line
Some systems connect several PCA954x devices to a single reset GPIO. For these devices to get out of reset and probe successfully, each device must defer the probe until the GPIO has been hogged. Accomplish this by attempting to grab a new "reset-shared-hogged" devicetree property, but expect it to fail with EPROBE_DEFER or EBUSY.
Changes since v1:
- Rework the patch to use a new devicetree property that we don't expect to successfully obtain
Eddie James (2):
dt-bindings: i2c: i2c-mux-pca954x: Define the reset-shared-hogged gpio
i2c: mux: pca954x: Support multiple devices on a single reset line
.../bindings/i2c/i2c-mux-pca954x.yaml | 5 ++ drivers/i2c/muxes/i2c-mux-pca954x.c | 46 +++++++++++++++---- 2 files changed, 42 insertions(+), 9 deletions(-)
Signature · 1 line
2.27.0