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@ -30,10 +30,9 @@ DECLARE_GLOBAL_DATA_PTR; |
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struct rk_i2c { |
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struct udevice *clk; |
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struct udevice *pinctrl; |
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struct i2c_regs *regs; |
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unsigned int speed; |
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enum periph_id id; |
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int clk_id; |
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}; |
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static inline void rk_i2c_get_div(int div, int *divh, int *divl) |
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@ -56,7 +55,7 @@ static void rk_i2c_set_clk(struct rk_i2c *i2c, uint32_t scl_rate) |
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int div, divl, divh; |
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/* First get i2c rate from pclk */ |
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i2c_rate = clk_get_periph_rate(i2c->clk, i2c->id); |
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i2c_rate = clk_get_periph_rate(i2c->clk, i2c->clk_id); |
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div = DIV_ROUND_UP(i2c_rate, scl_rate * 8) - 2; |
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divh = 0; |
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@ -352,23 +351,29 @@ int rockchip_i2c_set_bus_speed(struct udevice *bus, unsigned int speed) |
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return 0; |
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} |
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static int rockchip_i2c_probe(struct udevice *bus) |
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static int rockchip_i2c_ofdata_to_platdata(struct udevice *bus) |
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{ |
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struct rk_i2c *i2c = dev_get_priv(bus); |
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struct rk_i2c *priv = dev_get_priv(bus); |
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int ret; |
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ret = uclass_get_device(UCLASS_PINCTRL, 0, &i2c->pinctrl); |
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if (ret) |
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return ret; |
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ret = uclass_get_device(UCLASS_CLK, 0, &i2c->clk); |
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if (ret) |
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return ret; |
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ret = pinctrl_get_periph_id(i2c->pinctrl, bus); |
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if (ret < 0) |
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ret = clk_get_by_index(bus, 0, &priv->clk); |
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if (ret < 0) { |
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debug("%s: Could not get clock for %s: %d\n", __func__, |
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bus->name, ret); |
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return ret; |
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i2c->id = ret; |
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i2c->regs = (void *)dev_get_addr(bus); |
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return pinctrl_request(i2c->pinctrl, i2c->id, 0); |
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} |
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priv->clk_id = ret; |
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return 0; |
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} |
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static int rockchip_i2c_probe(struct udevice *bus) |
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{ |
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struct rk_i2c *priv = dev_get_priv(bus); |
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priv->regs = (void *)dev_get_addr(bus); |
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return 0; |
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} |
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static const struct dm_i2c_ops rockchip_i2c_ops = { |
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@ -385,6 +390,7 @@ U_BOOT_DRIVER(i2c_rockchip) = { |
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.name = "i2c_rockchip", |
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.id = UCLASS_I2C, |
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.of_match = rockchip_i2c_ids, |
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.ofdata_to_platdata = rockchip_i2c_ofdata_to_platdata, |
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.probe = rockchip_i2c_probe, |
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.priv_auto_alloc_size = sizeof(struct rk_i2c), |
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.ops = &rockchip_i2c_ops, |
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