[DNM]: drivers: imx: Move SAI MCLK enablement to sai_config() #7410
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LaurentiuM1234
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Due to the fact that MCLK signal comes after I2C's SCLK signal with an introlerable delay, the WM8962 codec seems to reach a bad state, leading to "DC servo timeout" issue on first playback. This was observed on i.MX93 and i.MX8MP with WM8962. This commit attempts to fix this by simply moving the MCLK enablement to sai_config(). Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
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Made commit description and comment a bit more clearer. VERY IMPORTANT: this patch was only tested on i.MX93 with simple playback, simple capture and playback with PAUSE/RESUME. |
paulstelian97
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Apr 6, 2023
LaurentiuM1234
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Marked as [DNM] until it can also be tested on 8MP. |
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Can one of the admins verify this patch? |
lgirdwood
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Apr 6, 2023
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Marked this as a draft because it doesn't solve the issue on 8MP with WM8962. |
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Will close this and let @iuliana-prodan handle it as this seems to be more problematic for 8MP with WM8962. |
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Due to the fact that MCLK is enabled after I2C's SCLK signal, the WM8962 codec seems to reach a wrong state, leading to "DC servo timeout" issue on first playback. This was observed on i.MX93 and i.MX8MP with WM8962. This commit attempts to fix this by simply moving the MCLK enablement to sai_config().