Compatible string "fsl,imx7d-i2c" is not exited at i2c-imx driver compatible string table, at the result, "fsl,imx21-i2c" will be matched, but it will cause errata ERR007805 not be applied in fact. So Add "fsl,imx7d-i2c" compatible string in i2c-imx driver to apply the errata ERR007805(https://www.nxp.com/webapp/Download?colCode= IMX7DS_2N09P). "fsl,imx7d-i2c" already is documented in binding doc. This errata fix has been included in imx6_i2c_hwdata and it is the same in all I.MX6/7/8, so just reuse it. Signed-off-by: Carlos Song <carlos.song@xxxxxxx> Signed-off-by: Haibo Chen <haibo.chen@xxxxxxx> --- Change for V3: - No ACK, so resend this patch. Change for V2: - I have tried to fix this issue at imx7s.dtsi in V1, according to the community suggestion, I make V2 patch for i2c-imx driver to avoid updating the FDT to fix an errata. Discussion in V1: Subject: [PATCH] ARM: dts: imx7s: change i2c compatible string for applying errata ERR007805 Message-ID: <20241021031148.2682015-1-carlos.song@xxxxxxx> (raw) --- drivers/i2c/busses/i2c-imx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index 350346a7892c..9d5caa032c5c 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c @@ -335,6 +335,7 @@ static const struct of_device_id i2c_imx_dt_ids[] = { { .compatible = "fsl,imx6sll-i2c", .data = &imx6_i2c_hwdata, }, { .compatible = "fsl,imx6sx-i2c", .data = &imx6_i2c_hwdata, }, { .compatible = "fsl,imx6ul-i2c", .data = &imx6_i2c_hwdata, }, + { .compatible = "fsl,imx7d-i2c", .data = &imx6_i2c_hwdata, }, { .compatible = "fsl,imx7s-i2c", .data = &imx6_i2c_hwdata, }, { .compatible = "fsl,imx8mm-i2c", .data = &imx6_i2c_hwdata, }, { .compatible = "fsl,imx8mn-i2c", .data = &imx6_i2c_hwdata, }, -- 2.34.1
