Merge branch 'i2c-mux/for-next' of https://github.com/peda-r/i2c-mux into i2c/for-4.16

"A couple of patches this time. Just some more compatibles for the
pca954x driver and an error handling tweak for the reg driver."

5 files changed, 45 insertions, 7 deletions

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 9e12a53ef7b8..8eac00efadc1 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1617,6 +1617,9 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	/* Default timeout in interrupt mode: 200 ms */
 	priv->adapter.timeout = HZ / 5;
 
+	if (dev->irq == IRQ_NOTCONNECTED)
+		priv->features &= ~FEATURE_IRQ;
+
 	if (priv->features & FEATURE_IRQ) {
 		u16 pcictl, pcists;
 
diff --git a/drivers/i2c/i2c-boardinfo.c b/drivers/i2c/i2c-boardinfo.c
index 31186ead5a40..509a6007cdf6 100644
--- a/drivers/i2c/i2c-boardinfo.c
+++ b/drivers/i2c/i2c-boardinfo.c
@@ -86,6 +86,7 @@ int i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsig
 					property_entries_dup(info->properties);
 			if (IS_ERR(devinfo->board_info.properties)) {
 				status = PTR_ERR(devinfo->board_info.properties);
+				kfree(devinfo);
 				break;
 			}
 		}
@@ -98,6 +99,7 @@ int i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsig
 					GFP_KERNEL);
 			if (!devinfo->board_info.resources) {
 				status = -ENOMEM;
+				kfree(devinfo);
 				break;
 			}
 		}
diff --git a/drivers/i2c/muxes/Kconfig b/drivers/i2c/muxes/Kconfig
index 0f5c8fc36625..52a4a922e7e6 100644
--- a/drivers/i2c/muxes/Kconfig
+++ b/drivers/i2c/muxes/Kconfig
@@ -64,11 +64,11 @@ config I2C_MUX_PCA9541
 	  will be called i2c-mux-pca9541.
 
 config I2C_MUX_PCA954x
-	tristate "Philips PCA954x I2C Mux/switches"
+	tristate "NXP PCA954x and PCA984x I2C Mux/switches"
 	depends on GPIOLIB || COMPILE_TEST
 	help
-	  If you say yes here you get support for the Philips PCA954x
-	  I2C mux/switch devices.
+	  If you say yes here you get support for the NXP PCA954x
+	  and PCA984x I2C mux/switch devices.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-mux-pca954x.
diff --git a/drivers/i2c/muxes/i2c-mux-pca954x.c b/drivers/i2c/muxes/i2c-mux-pca954x.c
index 2ca068d8b92d..fbb84c7ef282 100644
--- a/drivers/i2c/muxes/i2c-mux-pca954x.c
+++ b/drivers/i2c/muxes/i2c-mux-pca954x.c
@@ -4,11 +4,11 @@
  * Copyright (c) 2008-2009 Rodolfo Giometti <giometti@linux.it>
  * Copyright (c) 2008-2009 Eurotech S.p.A. <info@eurotech.it>
  *
- * This module supports the PCA954x series of I2C multiplexer/switch chips
- * made by Philips Semiconductors.
+ * This module supports the PCA954x and PCA954x series of I2C multiplexer/switch
+ * chips made by NXP Semiconductors.
  * This includes the:
- *	 PCA9540, PCA9542, PCA9543, PCA9544, PCA9545, PCA9546, PCA9547
- *	 and PCA9548.
+ *	 PCA9540, PCA9542, PCA9543, PCA9544, PCA9545, PCA9546, PCA9547,
+ *	 PCA9548, PCA9846, PCA9847, PCA9848 and PCA9849.
  *
  * These chips are all controlled via the I2C bus itself, and all have a
  * single 8-bit register. The upstream "parent" bus fans out to two,
@@ -63,6 +63,10 @@ enum pca_type {
 	pca_9546,
 	pca_9547,
 	pca_9548,
+	pca_9846,
+	pca_9847,
+	pca_9848,
+	pca_9849,
 };
 
 struct chip_desc {
@@ -129,6 +133,24 @@ static const struct chip_desc chips[] = {
 		.nchans = 8,
 		.muxtype = pca954x_isswi,
 	},
+	[pca_9846] = {
+		.nchans = 4,
+		.muxtype = pca954x_isswi,
+	},
+	[pca_9847] = {
+		.nchans = 8,
+		.enable = 0x8,
+		.muxtype = pca954x_ismux,
+	},
+	[pca_9848] = {
+		.nchans = 8,
+		.muxtype = pca954x_isswi,
+	},
+	[pca_9849] = {
+		.nchans = 4,
+		.enable = 0x4,
+		.muxtype = pca954x_ismux,
+	},
 };
 
 static const struct i2c_device_id pca954x_id[] = {
@@ -140,6 +162,10 @@ static const struct i2c_device_id pca954x_id[] = {
 	{ "pca9546", pca_9546 },
 	{ "pca9547", pca_9547 },
 	{ "pca9548", pca_9548 },
+	{ "pca9846", pca_9846 },
+	{ "pca9847", pca_9847 },
+	{ "pca9848", pca_9848 },
+	{ "pca9849", pca_9849 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, pca954x_id);
@@ -154,6 +180,10 @@ static const struct of_device_id pca954x_of_match[] = {
 	{ .compatible = "nxp,pca9546", .data = &chips[pca_9546] },
 	{ .compatible = "nxp,pca9547", .data = &chips[pca_9547] },
 	{ .compatible = "nxp,pca9548", .data = &chips[pca_9548] },
+	{ .compatible = "nxp,pca9846", .data = &chips[pca_9846] },
+	{ .compatible = "nxp,pca9847", .data = &chips[pca_9847] },
+	{ .compatible = "nxp,pca9848", .data = &chips[pca_9848] },
+	{ .compatible = "nxp,pca9849", .data = &chips[pca_9849] },
 	{}
 };
 MODULE_DEVICE_TABLE(of, pca954x_of_match);
diff --git a/drivers/i2c/muxes/i2c-mux-reg.c b/drivers/i2c/muxes/i2c-mux-reg.c
index f6c9c3dc6cad..c948e5a4cb04 100644
--- a/drivers/i2c/muxes/i2c-mux-reg.c
+++ b/drivers/i2c/muxes/i2c-mux-reg.c
@@ -177,6 +177,9 @@ static int i2c_mux_reg_probe(struct platform_device *pdev)
 			sizeof(mux->data));
 	} else {
 		ret = i2c_mux_reg_probe_dt(mux, pdev);
+		if (ret == -EPROBE_DEFER)
+			return ret;
+
 		if (ret < 0) {
 			dev_err(&pdev->dev, "Error parsing device tree");
 			return ret;