[PATCH] pinctrl: tegra264: fix DAP2 DIN/DOUT mux functions

[PATCH] pinctrl: tegra264: fix DAP2 DIN/DOUT mux functions

[Prathamesh Shete]

The dap2_din_pv7 and dap2_dout_pw0 pin groups were assigned swapped
primary mux functions: dap2_din_pv7 (data input) was muxed to
I2S2_SDATA_OUT and dap2_dout_pw0 (data output) to I2S2_SDATA_IN. As a
result the I2S2 data-in and data-out signals were routed to the wrong
pins, breaking DAP2 audio.

Correct the functions so dap2_din_pv7 uses I2S2_SDATA_IN and dap2_dout_pw0
uses I2S2_SDATA_OUT. The register offsets and drive-group macros are
already correct and are left unchanged.

Fixes: c98506206912 ("pinctrl: tegra: Add Tegra264 pinmux driver")
Signed-off-by: Prathamesh Shete <pshete@nvidia.com>
---
 drivers/pinctrl/tegra/pinctrl-tegra264.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/tegra/pinctrl-tegra264.c b/drivers/pinctrl/tegra/pinctrl-tegra264.c
index be64fba34dce..3802e480d39e 100644
--- a/drivers/pinctrl/tegra/pinctrl-tegra264.c
+++ b/drivers/pinctrl/tegra/pinctrl-tegra264.c
@@ -2051,8 +2051,8 @@ static const struct tegra_pingroup tegra264_main_groups[] = {
 	PINGROUP(gen1_i2c_sda_pw3, I2C1_DAT, RSVD1, RSVD2, RSVD3, 0x6018, 0, Y, 5, 7, 6, 8, -1, 10, 11),
 	PINGROUP(dap2_fs_pw1, I2S2_LRCK, RSVD1, RSVD2, RSVD3, 0x6040, 0, Y, 5, 7, 6, 8, -1, 10, 11),
 	PINGROUP(dap2_clk_pv6, I2S2_SCLK, RSVD1, RSVD2, RSVD3, 0x6048, 0, Y, 5, 7, 6, 8, -1, 10, 11),
-	PINGROUP(dap2_din_pv7, I2S2_SDATA_OUT, RSVD1, RSVD2, RSVD3, 0x6050, 0, Y, 5, 7, 6, 8, -1, 10, 11),
-	PINGROUP(dap2_dout_pw0, I2S2_SDATA_IN, RSVD1, RSVD2, RSVD3, 0x6058, 0, Y, 5, 7, 6, 8, -1, 10, 11),
+	PINGROUP(dap2_din_pv7, I2S2_SDATA_IN, RSVD1, RSVD2, RSVD3, 0x6050, 0, Y, 5, 7, 6, 8, -1, 10, 11),
+	PINGROUP(dap2_dout_pw0, I2S2_SDATA_OUT, RSVD1, RSVD2, RSVD3, 0x6058, 0, Y, 5, 7, 6, 8, -1, 10, 11),
 	PINGROUP(pwm10_pv1, GP_PWM10, SDMMC1_CD, I2S7_LRCK, RSVD3, 0x6060, 0, Y, 5, 7, 6, 8, -1, 10, 11),
 	PINGROUP(soc_gpio170_pu0, RSVD0, I2S7_SDATA_IN, CCLA_LA_TRIGGER_MUX, RSVD3, 0x6068, 0, Y, 5, 7, 6, 8, -1, 10, 11),
 	PINGROUP(soc_gpio171_pu1, RSVD0, SPI4_SCK, RSVD2, RSVD3, 0x6070, 0, Y, 5, 7, 6, 8, -1, 10, 11),
-- 
2.17.1

Re: [PATCH] pinctrl: tegra264: fix DAP2 DIN/DOUT mux functions

[Thierry Reding]

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On Wed, Jul 15, 2026 at 10:16:36AM +0000, Prathamesh Shete wrote:
> The dap2_din_pv7 and dap2_dout_pw0 pin groups were assigned swapped
> primary mux functions: dap2_din_pv7 (data input) was muxed to
> I2S2_SDATA_OUT and dap2_dout_pw0 (data output) to I2S2_SDATA_IN. As a
> result the I2S2 data-in and data-out signals were routed to the wrong
> pins, breaking DAP2 audio.
> 
> Correct the functions so dap2_din_pv7 uses I2S2_SDATA_IN and dap2_dout_pw0
> uses I2S2_SDATA_OUT. The register offsets and drive-group macros are
> already correct and are left unchanged.
> 
> Fixes: c98506206912 ("pinctrl: tegra: Add Tegra264 pinmux driver")
> Signed-off-by: Prathamesh Shete <pshete@nvidia.com>
> ---
>  drivers/pinctrl/tegra/pinctrl-tegra264.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Acked-by: Thierry Reding <treding@nvidia.com>

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