diff --git a/Documentation/devicetree/bindings/i2c/i2c-meson.txt b/Documentation/devicetree/bindings/i2c/i2c-meson.txt index 386357d1aab0..611b934c7e10 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-meson.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-meson.txt @@ -8,6 +8,8 @@ Required properties: - #address-cells: should be <1> - #size-cells: should be <0> +For details regarding the following core I2C bindings see also i2c.txt. + Optional properties: - clock-frequency: the desired I2C bus clock frequency in Hz; in absence of this property the default value is used (100 kHz). diff --git a/drivers/i2c/busses/i2c-meson.c b/drivers/i2c/busses/i2c-meson.c index a692594fb82c..852db0f0bec2 100644 --- a/drivers/i2c/busses/i2c-meson.c +++ b/drivers/i2c/busses/i2c-meson.c @@ -38,7 +38,6 @@ #define REG_CTRL_CLKDIV_MASK ((BIT(10) - 1) << REG_CTRL_CLKDIV_SHIFT) #define I2C_TIMEOUT_MS 500 -#define DEFAULT_FREQ 100000 enum { TOKEN_END = 0, @@ -387,15 +386,14 @@ static int meson_i2c_probe(struct platform_device *pdev) struct device_node *np = pdev->dev.of_node; struct meson_i2c *i2c; struct resource *mem; - u32 freq; + struct i2c_timings timings; int irq, ret = 0; i2c = devm_kzalloc(&pdev->dev, sizeof(struct meson_i2c), GFP_KERNEL); if (!i2c) return -ENOMEM; - if (of_property_read_u32(pdev->dev.of_node, "clock-frequency", &freq)) - freq = DEFAULT_FREQ; + i2c_parse_fw_timings(&pdev->dev, &timings, true); i2c->dev = &pdev->dev; platform_set_drvdata(pdev, i2c); @@ -452,7 +450,7 @@ static int meson_i2c_probe(struct platform_device *pdev) return ret; } - meson_i2c_set_clk_div(i2c, freq); + meson_i2c_set_clk_div(i2c, timings.bus_freq_hz); return 0; }