| Message ID | 20240607-tlv320adc3xxx-micbias-gpo-v3-0-59dbec8b98f4@axis.com |
|---|---|
| Headers | show |
| Series | tlv320adc3xxx: Allow MICBIAS pins to be used as GPOs | expand |
On Fri, 07 Jun 2024 17:22:03 +0200, Ricard Wanderlof wrote: > In some cases, depending on system design, the MICBIAS pins on the > chip are not needed as such, but a couple of extra GPIO pins would be > useful. This patch allows the MICBIAS pins to be configured in the > device tree as general purpose output pins, controlled via the GPIO > framework. > > Owing to their originally intended purpose there are some limitations: > when the MICBIAS pins are deactivated, they will float, so will likely > need a pulldown in many applications. When activated, they will > assume the voltage specified by the micbias1-vg and micbias2-vg > properties, respectively, meaning that the resulting output voltage > will be 2.0 V, 2.5 V or AVDD . > > [...] Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next Thanks! [1/2] ASoC: dt-bindings: tlv320adc3xxx: Add MICBIAS-as-GPO properties commit: 4e617f0cb2dd9675a3b2707c10d89f0f5303ad1e [2/2] tlv320adc3xxx: Add support for using MICBIAS pins as GPO commit: 6c01001414ce477311d872c40e23dfec4866d608 All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark
In some cases, depending on system design, the MICBIAS pins on the chip are not needed as such, but a couple of extra GPIO pins would be useful. This patch allows the MICBIAS pins to be configured in the device tree as general purpose output pins, controlled via the GPIO framework. Owing to their originally intended purpose there are some limitations: when the MICBIAS pins are deactivated, they will float, so will likely need a pulldown in many applications. When activated, they will assume the voltage specified by the micbias1-vg and micbias2-vg properties, respectively, meaning that the resulting output voltage will be 2.0 V, 2.5 V or AVDD . Signed-off-by: Ricard Wanderlof <ricard.wanderlof@axis.com> --- Changes in v3: - Correct typos in property names in dependencies section - Add single quotes around properties in dependency lists (needed because the property names contain a comma) - Link to v2: https://lore.kernel.org/r/20240607-tlv320adc3xxx-micbias-gpo-v2-0-b140a45ffffe@axis.com Changes in v2: - Correct typo in yaml document for ti,micbias2-vg property reference - Add dependecies to yaml document for ti,micbias1-gio and ti,micbias2-gpo - Link to v1: https://lore.kernel.org/r/20240529-tlv320adc3xxx-micbias-gpo-v1-0-300d39cecc55@axis.com --- Ricard Wanderlof (2): ASoC: dt-bindings: tlv320adc3xxx: Add MICBIAS-as-GPO properties tlv320adc3xxx: Add support for using MICBIAS pins as GPO .../bindings/sound/ti,tlv320adc3xxx.yaml | 24 +++++ sound/soc/codecs/tlv320adc3xxx.c | 105 ++++++++++++++++----- 2 files changed, 108 insertions(+), 21 deletions(-) --- base-commit: 47d09270d7776e46858a161f94b735640b2fb056 change-id: 20240528-tlv320adc3xxx-micbias-gpo-b8b4d1c846d3 Best regards,