Re: [RESEND V2 2/2] pinctrl: tegra264: fix DAP2 DIN/DOUT pin assignment
From: Thierry Reding
Date: Fri Jul 31 2026 - 04:10:45 EST
On Mon, Jul 27, 2026 at 02:11:21PM +0000, Prathamesh Shete wrote:
> The dap2_din and dap2_dout pin groups were given swapped ball suffixes:
> DAP2_DIN was described as ball PV7 and DAP2_DOUT as ball PW0. On silicon
> DAP2_DIN is on ball PW0 (mux register 0x6050, drive register 0x6054) and
> DAP2_DOUT is on ball PV7 (mux register 0x6058, drive register 0x605c),
> as reflected by the board pinmux.
>
> Because the ball suffixes were swapped, the groups were also assigned the
> wrong primary mux functions (dap2_din -> I2S2_SDATA_OUT and dap2_dout ->
> I2S2_SDATA_IN), routing the I2S2 data-in and data-out signals to the wrong
> pins and breaking DAP2 audio.
>
> Rename the groups to dap2_din_pw0 and dap2_dout_pv7 and give each pad its
> correct function (dap2_din_pw0 -> I2S2_SDATA_IN, dap2_dout_pv7 ->
> I2S2_SDATA_OUT). The register offsets are already correct and are left
> unchanged. This matches the board pinmux.
>
> Fixes: c98506206912 ("pinctrl: tegra: Add Tegra264 pinmux driver")
> Signed-off-by: Prathamesh Shete <pshete@xxxxxxxxxx>
> ---
> Changes in v2:
> - Rename the pin groups to dap2_din_pw0 and dap2_dout_pv7 and assign the
> correct mux function to each pad in a single driver patch.
> ---
> drivers/pinctrl/tegra/pinctrl-tegra264.c | 24 ++++++++++++------------
> 1 file changed, 12 insertions(+), 12 deletions(-)
Acked-by: Thierry Reding <treding@xxxxxxxxxx>
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