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Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Here are two simple but wanted fixes for the i2c subsystem"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: imx: Check the return value from clk_prepare_enable()
  i2c: mux: Inherit retry count and timeout from parent for muxed bus
Linus Torvalds 12 лет назад
Родитель
Сommit
31f984d10c
2 измененных файлов с 5 добавлено и 1 удалено
  1. 3 1
      drivers/i2c/busses/i2c-imx.c
  2. 2 0
      drivers/i2c/i2c-mux.c

+ 3 - 1
drivers/i2c/busses/i2c-imx.c

@@ -312,7 +312,9 @@ static int i2c_imx_start(struct imx_i2c_struct *i2c_imx)
 
 	dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__);
 
-	clk_prepare_enable(i2c_imx->clk);
+	result = clk_prepare_enable(i2c_imx->clk);
+	if (result)
+		return result;
 	imx_i2c_write_reg(i2c_imx->ifdr, i2c_imx, IMX_I2C_IFDR);
 	/* Enable I2C controller */
 	imx_i2c_write_reg(i2c_imx->hwdata->i2sr_clr_opcode, i2c_imx, IMX_I2C_I2SR);

+ 2 - 0
drivers/i2c/i2c-mux.c

@@ -139,6 +139,8 @@ struct i2c_adapter *i2c_add_mux_adapter(struct i2c_adapter *parent,
 	priv->adap.algo = &priv->algo;
 	priv->adap.algo_data = priv;
 	priv->adap.dev.parent = &parent->dev;
+	priv->adap.retries = parent->retries;
+	priv->adap.timeout = parent->timeout;
 
 	/* Sanity check on class */
 	if (i2c_mux_parent_classes(parent) & class)