Merge tag 'for-v2019.10' of https://gitlab.denx.de/u-boot/custodians/u-boot-i2c

i2c bugfixes for 2019.10
- misc: i2c_eeprom: verify that the chip is functional at probe()
- i2c: mxc_i2c: Remove i2c_idle_bus from probe
- i2c-mux-gpio: Fix GPIO request flag issue

3 files changed, 9 insertions, 8 deletions

diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c
index 28f640042f3..e8b124f4f5f 100644
--- a/drivers/i2c/muxes/i2c-mux-gpio.c
+++ b/drivers/i2c/muxes/i2c-mux-gpio.c
@@ -106,7 +106,7 @@ static int i2c_mux_gpio_probe(struct udevice *dev)
 	}
 
 	ret = gpio_request_list_by_name(dev, "mux-gpios", gpios, mux->n_gpios,
-					GPIOD_IS_OUT_ACTIVE);
+					GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE);
 	if (ret <= 0) {
 		dev_err(dev, "Failed to request mux-gpios\n");
 		return ret;
diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
index 73b98075982..20f6dc4ecb5 100644
--- a/drivers/i2c/mxc_i2c.c
+++ b/drivers/i2c/mxc_i2c.c
@@ -917,13 +917,6 @@ static int mxc_i2c_probe(struct udevice *bus)
 		}
 	}
 
-	ret = i2c_idle_bus(i2c_bus);
-	if (ret < 0) {
-		/* Disable clk */
-		enable_i2c_clk(0, bus->seq);
-		return ret;
-	}
-
 	/*
 	 * Pinmux settings are in board file now, until pinmux is supported,
 	 * we can set pinmux here in probe function.
diff --git a/drivers/misc/i2c_eeprom.c b/drivers/misc/i2c_eeprom.c
index f25d0540075..8f2349ad5a7 100644
--- a/drivers/misc/i2c_eeprom.c
+++ b/drivers/misc/i2c_eeprom.c
@@ -84,6 +84,14 @@ static int i2c_eeprom_std_ofdata_to_platdata(struct udevice *dev)
 
 static int i2c_eeprom_std_probe(struct udevice *dev)
 {
+	u8 test_byte;
+	int ret;
+
+	/* Verify that the chip is functional */
+	ret = i2c_eeprom_read(dev, 0, &test_byte, 1);
+	if (ret)
+		return -ENODEV;
+
 	return 0;
 }