浏览代码

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

Pull i2c fixes from Wolfram Sang:
 "Two i2c driver bugfixes"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: qup: Fix order of runtime pm initialization
  i2c: rk3x: fix 0 length write transfers
Linus Torvalds 11 年之前
父节点
当前提交
126d4576cb
共有 2 个文件被更改,包括 9 次插入5 次删除
  1. 8 4
      drivers/i2c/busses/i2c-qup.c
  2. 1 1
      drivers/i2c/busses/i2c-rk3x.c

+ 8 - 4
drivers/i2c/busses/i2c-qup.c

@@ -674,16 +674,20 @@ static int qup_i2c_probe(struct platform_device *pdev)
 	qup->adap.dev.of_node = pdev->dev.of_node;
 	strlcpy(qup->adap.name, "QUP I2C adapter", sizeof(qup->adap.name));
 
-	ret = i2c_add_adapter(&qup->adap);
-	if (ret)
-		goto fail;
-
 	pm_runtime_set_autosuspend_delay(qup->dev, MSEC_PER_SEC);
 	pm_runtime_use_autosuspend(qup->dev);
 	pm_runtime_set_active(qup->dev);
 	pm_runtime_enable(qup->dev);
+
+	ret = i2c_add_adapter(&qup->adap);
+	if (ret)
+		goto fail_runtime;
+
 	return 0;
 
+fail_runtime:
+	pm_runtime_disable(qup->dev);
+	pm_runtime_set_suspended(qup->dev);
 fail:
 	qup_i2c_disable_clocks(qup);
 	return ret;

+ 1 - 1
drivers/i2c/busses/i2c-rk3x.c

@@ -238,7 +238,7 @@ static void rk3x_i2c_fill_transmit_buf(struct rk3x_i2c *i2c)
 	for (i = 0; i < 8; ++i) {
 		val = 0;
 		for (j = 0; j < 4; ++j) {
-			if (i2c->processed == i2c->msg->len)
+			if ((i2c->processed == i2c->msg->len) && (cnt != 0))
 				break;
 
 			if (i2c->processed == 0 && cnt == 0)