On Thu, Nov 10, 2022 at 4:06 PM Detlev Casanova detlev.casanova@collabora.com wrote:
Since commit bf2aebccddef ("ASoC: sgtl5000: Fix noise on shutdown/remove"), the device power control registers are reset when the driver is removed/shutdown.
This is an issue when the device is configured to use the PLL clock. The device will stop responding if it is still configured to use the PLL clock but the PLL clock is powered down.
When rebooting linux, the probe function will show: sgtl5000 0-000a: Error reading chip id -11
Make sure that the CHIP_CLK_CTRL is reset to its default value before powering down the device.
Fixes: bf2aebccddef ("ASoC: sgtl5000: Fix noise on shutdown/remove") Signed-off-by: Detlev Casanova detlev.casanova@collabora.com
Reviewed-by: Fabio Estevam festevam@gmail.com