Extract only vendor ID from VID register, the top 4 bits are revision ID which are not useful for the vendor ID check. Reviewed-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx> Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxxxx> --- Cc: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx> Cc: Conor Dooley <conor+dt@xxxxxxxxxx> Cc: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx> Cc: Michael Turquette <mturquette@xxxxxxxxxxxx> Cc: Rob Herring <robh+dt@xxxxxxxxxx> Cc: Stephen Boyd <sboyd@xxxxxxxxxx> Cc: devicetree@xxxxxxxxxxxxxxx Cc: linux-clk@xxxxxxxxxxxxxxx Cc: linux-renesas-soc@xxxxxxxxxxxxxxx --- V2: Split off patch from 4/4 V3: Add RB from Biju --- drivers/clk/clk-renesas-pcie.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/clk/clk-renesas-pcie.c b/drivers/clk/clk-renesas-pcie.c index 6606aba253c5..b5c430e4899c 100644 --- a/drivers/clk/clk-renesas-pcie.c +++ b/drivers/clk/clk-renesas-pcie.c @@ -42,6 +42,7 @@ #define RS9_REG_DID 0x6 #define RS9_REG_BCP 0x7 +#define RS9_REG_VID_MASK GENMASK(3, 0) #define RS9_REG_VID_IDT 0x01 #define RS9_REG_DID_TYPE_FGV (0x0 << RS9_REG_DID_TYPE_SHIFT) @@ -333,6 +334,7 @@ static int rs9_probe(struct i2c_client *client) if (ret < 0) return ret; + vid &= RS9_REG_VID_MASK; if (vid != RS9_REG_VID_IDT || did != rs9->chip_info->did) return dev_err_probe(&client->dev, -ENODEV, "Incorrect VID/DID: %#02x, %#02x. Expected %#02x, %#02x\n", -- 2.42.0
