6.6-stable review patch. If anyone has any objections, please let me know.
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From: Emanuele Ghidoli emanuele.ghidoli@toradex.com
commit bdf4252f736cc1d2a8e3e633c70fe6c728f0756e upstream.
Enable internal bias pull-ups on the SoC-side I2C buses that do not have external pull resistors populated on the SoM. This ensures proper default line levels.
Cc: stable@vger.kernel.org Fixes: 316b80246b16 ("arm64: dts: ti: add verdin am62") Signed-off-by: Emanuele Ghidoli emanuele.ghidoli@toradex.com Reviewed-by: Francesco Dolcini francesco.dolcini@toradex.com Link: https://lore.kernel.org/r/20250528110741.262336-1-ghidoliemanuele@gmail.com Signed-off-by: Vignesh Raghavendra vigneshr@ti.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
--- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi @@ -448,16 +448,16 @@ /* Verdin I2C_2_DSI */ pinctrl_i2c2: main-i2c2-default-pins { pinctrl-single,pins = < - AM62X_IOPAD(0x00b0, PIN_INPUT, 1) /* (K22) GPMC0_CSn2.I2C2_SCL */ /* SODIMM 55 */ - AM62X_IOPAD(0x00b4, PIN_INPUT, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */ /* SODIMM 53 */ + AM62X_IOPAD(0x00b0, PIN_INPUT_PULLUP, 1) /* (K22) GPMC0_CSn2.I2C2_SCL */ /* SODIMM 55 */ + AM62X_IOPAD(0x00b4, PIN_INPUT_PULLUP, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */ /* SODIMM 53 */ >; };
/* Verdin I2C_4_CSI */ pinctrl_i2c3: main-i2c3-default-pins { pinctrl-single,pins = < - AM62X_IOPAD(0x01d0, PIN_INPUT, 2) /* (A15) UART0_CTSn.I2C3_SCL */ /* SODIMM 95 */ - AM62X_IOPAD(0x01d4, PIN_INPUT, 2) /* (B15) UART0_RTSn.I2C3_SDA */ /* SODIMM 93 */ + AM62X_IOPAD(0x01d0, PIN_INPUT_PULLUP, 2) /* (A15) UART0_CTSn.I2C3_SCL */ /* SODIMM 95 */ + AM62X_IOPAD(0x01d4, PIN_INPUT_PULLUP, 2) /* (B15) UART0_RTSn.I2C3_SDA */ /* SODIMM 93 */ >; };
@@ -729,8 +729,8 @@ /* Verdin I2C_3_HDMI */ pinctrl_mcu_i2c0: mcu-i2c0-default-pins { pinctrl-single,pins = < - AM62X_MCU_IOPAD(0x0044, PIN_INPUT, 0) /* (A8) MCU_I2C0_SCL */ /* SODIMM 59 */ - AM62X_MCU_IOPAD(0x0048, PIN_INPUT, 0) /* (D10) MCU_I2C0_SDA */ /* SODIMM 57 */ + AM62X_MCU_IOPAD(0x0044, PIN_INPUT_PULLUP, 0) /* (A8) MCU_I2C0_SCL */ /* SODIMM 59 */ + AM62X_MCU_IOPAD(0x0048, PIN_INPUT_PULLUP, 0) /* (D10) MCU_I2C0_SDA */ /* SODIMM 57 */ >; };