[PATCH v4 1/3] ASoC: rockchip: i2s: switch BCLK to GPIO

Mark Brown broonie at kernel.org
Wed Jun 22 03:52:22 PDT 2022


On Wed, Jun 22, 2022 at 02:02:41AM +0800, Chen-Yu Tsai wrote:
> Hi,
> 
> On Sun, Jun 19, 2022 at 5:54 PM Judy Hsiao <judyhsiao at chromium.org> wrote:
> >
> > We discoverd that the state of BCLK on, LRCLK off and SD_MODE on
> > may cause the speaker melting issue. Removing LRCLK while BCLK
> > is present can cause unexpected output behavior including a large
> > DC output voltage as described in the Max98357a datasheet.
> >
> > In order to:
> >   1. prevent BCLK from turning on by other component.
> >   2. keep BCLK and LRCLK being present at the same time
> >
> > This patch switches BCLK to GPIO func before LRCLK output, and

Please delete unneeded context from mails when replying.  Doing this
makes it much easier to find your reply in the message, helping ensure
it won't be missed by people scrolling through the irrelevant quoted
material.
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