From: Peng Fan Date: Tue, 2 Jan 2018 07:41:52 +0000 (+0800) Subject: i2c: lpi2c: do not add 4 for bus seq X-Git-Tag: v2018.03-rc1~173^2~2 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=0074d4bf2d9f9b32b9939dfba6c84a160d250763;p=oweals%2Fu-boot.git 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 --- diff --git a/drivers/i2c/imx_lpi2c.c b/drivers/i2c/imx_lpi2c.c index e7ec17fe9e..de74e89efd 100644 --- 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;