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authorWolfram Sang <wsa@the-dreams.de>2017-12-31 09:58:07 +0100
committerWolfram Sang <wsa@the-dreams.de>2017-12-31 09:58:07 +0100
commit639136d2a70ab9837befb22ad5b3d67cb4db2216 (patch)
tree64e7d426cf7b7ffdce6798986c63dcdfe025c53d /drivers/i2c
parent017fc4f6f4b7b70e443e7ef673732517ece111c8 (diff)
parentac5b85de17cb96445c51bd1a1c53c3f675582f26 (diff)
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."
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-i801.c3
-rw-r--r--drivers/i2c/i2c-boardinfo.c2
-rw-r--r--drivers/i2c/muxes/Kconfig6
-rw-r--r--drivers/i2c/muxes/i2c-mux-pca954x.c38
-rw-r--r--drivers/i2c/muxes/i2c-mux-reg.c3
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;

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