i2c: lpi2c: do not add 4 for bus seq

The number 4 is dedicated on i.MX7ULP, but lpi2c will be reused on i.MX8,
4 is not valid. The seq number could be configured by alias node.

The following patch will use i2c4 as the begin for i.MX7ULP.

Signed-off-by: Peng Fan <peng.fan@nxp.com>

diff --git a/drivers/i2c/imx_lpi2c.c b/drivers/i2c/imx_lpi2c.c
index e7ec17fe9e1b1c83d3021fadcb0968955fa2f3c9..de74e89efdc0510e9a3e82154295906405da785e 100644 (file)
--- a/drivers/i2c/imx_lpi2c.c
+++ b/drivers/i2c/imx_lpi2c.c
@@ -258,7 +258,7 @@ static int bus_i2c_set_bus_speed(struct udevice *bus, int speed)
        int i;
 
        regs = (struct imx_lpi2c_reg *)devfdt_get_addr(bus);
-       clock_rate = imx_get_i2cclk(bus->seq + 4);
+       clock_rate = imx_get_i2cclk(bus->seq);
        if (!clock_rate)
                return -EPERM;
 
@@ -419,14 +419,14 @@ static int imx_lpi2c_probe(struct udevice *bus)
        i2c_bus->bus = bus;
 
        /* power up i2c resource */
-       ret = init_i2c_power(bus->seq + 4);
+       ret = init_i2c_power(bus->seq);
        if (ret) {
                debug("init_i2c_power err = %d\n", ret);
                return ret;
        }
 
-       /* Enable clk, only i2c4-7 can be handled by A7 core */
-       ret = enable_i2c_clk(1, bus->seq + 4);
+       /* To i.MX7ULP, only i2c4-7 can be handled by A7 core */
+       ret = enable_i2c_clk(1, bus->seq);
        if (ret < 0)
                return ret;