[v1,PATCH 1/1] i2c: mediatek: add bus regulator control for power saving

[Andi Shyti]

Hi Adlavinitha,

On Wed, Mar 18, 2026 at 04:46:16PM +0800, adlavinitha reddy wrote:
> Add conditional bus regulator enable/disable in mtk_i2c_transfer()
> to support I2C bus power gating for platforms that require it.
> 
> This implementation:
> - Enables bus_regulator before clk_bulk_enable() if vbus-supply is defined
> - Disables bus_regulator after clk_bulk_disable()
> - Only activates when vbus-supply is provided in device tree
> - Has no impact on platforms without vbus-supply defined
> 
> This approach provides power savinggs for platforms with an extra I2C bus

I changed /savinggs/savings/.

> regulator, while avoiding runtime PM complexity.
> 
> TEST= Build and boot on MT8188

'"TEST=..." is a tag. There is no need to save characters in the
commit log. I changed it to "Tested on MT8188.".'

> Signed-off-by: adlavinitha reddy <adlavinitha.reddy at mediatek.com>

Please use capital letters for your name and for the committer's
name as well. I fixed it.

Now you have to explain me why you sent three times this same
patch.

Next time, please use the format '[PATCH v1 1/1]' instead of
'[v1,PATCH 1/1]'. Normally for the first version you can omit v1.

For single patches you don't need the 0/1 cover letter. Just send
as [PATCH].

Please read Documentation/SubmittingPatches.

For now I merged this patch in i2c/i2c-host-2.

Thanks,
Andi