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i2c: imx_lpi2c: add ipg clk

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The controller needs two clk, per clk and ipg clk,
so let's add ipg clk.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan
2019-07-24 08:54:16 +00:00
committed by Stefano Babic
parent b4eca2d787
commit d02be21d30
2 changed files with 12 additions and 0 deletions
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11
drivers/i2c/imx_lpi2c.c
View File

@@ -471,6 +471,17 @@ static int imx_lpi2c_probe(struct udevice *bus)
dev_err(bus, "Failed to enable per clk\n"); dev_err(bus, "Failed to enable per clk\n");
return ret; return ret;
} }
ret = clk_get_by_name(bus, "ipg", &i2c_bus->ipg_clk);
if (ret) {
dev_err(bus, "Failed to get ipg clk\n");
return ret;
}
ret = clk_enable(&i2c_bus->ipg_clk);
if (ret) {
dev_err(bus, "Failed to enable ipg clk\n");
return ret;
}
} else { } else {
/* To i.MX7ULP, only i2c4-7 can be handled by A7 core */ /* To i.MX7ULP, only i2c4-7 can be handled by A7 core */
ret = enable_i2c_clk(1, bus->seq); ret = enable_i2c_clk(1, bus->seq);

1
include/imx_lpi2c.h
View File

@@ -18,6 +18,7 @@ struct imx_lpi2c_bus {
struct i2c_pads_info *pads_info; struct i2c_pads_info *pads_info;
struct udevice *bus; struct udevice *bus;
struct clk per_clk; struct clk per_clk;
struct clk ipg_clk;
}; };
struct imx_lpi2c_reg { struct imx_lpi2c_reg {