[SRU][OEM-5.17][PATCH 05/10] platform/x86: i2c-multi-instantiate: Rename it for a generic serial driver name
Hui Wang
hui.wang at canonical.com
Wed Apr 20 09:41:27 UTC 2022
From: Lucas Tanure <tanureal at opensource.cirrus.com>
BugLink: https://bugs.launchpad.net/bugs/1965496
Rename I2C multi instantiate driver to serial-multi-instantiate for
upcoming addition of SPI support
Signed-off-by: Lucas Tanure <tanureal at opensource.cirrus.com>
Signed-off-by: Stefan Binding <sbinding at opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220121172431.6876-6-sbinding@opensource.cirrus.com
Reviewed-by: Hans de Goede <hdegoede at redhat.com>
Signed-off-by: Hans de Goede <hdegoede at redhat.com>
(cherry picked from commit 5e63b2ea3dfbab9307e197004a3c5ee4e1442582)
Signed-off-by: Hui Wang <hui.wang at canonical.com>
---
MAINTAINERS | 4 +-
drivers/acpi/scan.c | 13 +--
drivers/platform/x86/Kconfig | 10 +-
drivers/platform/x86/Makefile | 2 +-
...stantiate.c => serial-multi-instantiate.c} | 91 +++++++++----------
5 files changed, 60 insertions(+), 60 deletions(-)
rename drivers/platform/x86/{i2c-multi-instantiate.c => serial-multi-instantiate.c} (51%)
diff --git a/MAINTAINERS b/MAINTAINERS
index 52ec8efef938..fc056d7f73fa 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -401,11 +401,11 @@ L: linux-arm-kernel at lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: drivers/acpi/arm64
-ACPI I2C MULTI INSTANTIATE DRIVER
+ACPI SERIAL MULTI INSTANTIATE DRIVER
M: Hans de Goede <hdegoede at redhat.com>
L: platform-driver-x86 at vger.kernel.org
S: Maintained
-F: drivers/platform/x86/i2c-multi-instantiate.c
+F: drivers/platform/x86/serial-multi-instantiate.c
ACPI PCC(Platform Communication Channel) MAILBOX DRIVER
M: Sudeep Holla <sudeep.holla at arm.com>
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 8b2e5ef15559..96dbd47657f6 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1734,12 +1734,13 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
bool is_serial_bus_slave = false;
static const struct acpi_device_id ignore_serial_bus_ids[] = {
/*
- * These devices have multiple I2cSerialBus resources and an i2c-client
- * must be instantiated for each, each with its own i2c_device_id.
- * Normally we only instantiate an i2c-client for the first resource,
- * using the ACPI HID as id. These special cases are handled by the
- * drivers/platform/x86/i2c-multi-instantiate.c driver, which knows
- * which i2c_device_id to use for each resource.
+ * These devices have multiple SerialBus resources and a client
+ * device must be instantiated for each of them, each with
+ * its own device id.
+ * Normally we only instantiate one client device for the first
+ * resource, using the ACPI HID as id. These special cases are handled
+ * by the drivers/platform/x86/serial-multi-instantiate.c driver, which
+ * knows which client device id to use for each resource.
*/
{"BSG1160", },
{"BSG2150", },
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index af453a5dbf0c..53c2cde229cf 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -1004,16 +1004,16 @@ config TOPSTAR_LAPTOP
If you have a Topstar laptop, say Y or M here.
-config I2C_MULTI_INSTANTIATE
- tristate "I2C multi instantiate pseudo device driver"
+config SERIAL_MULTI_INSTANTIATE
+ tristate "Serial bus multi instantiate pseudo device driver"
depends on I2C && ACPI
help
- Some ACPI-based systems list multiple i2c-devices in a single ACPI
- firmware-node. This driver will instantiate separate i2c-clients
+ Some ACPI-based systems list multiple devices in a single ACPI
+ firmware-node. This driver will instantiate separate clients
for each device in the firmware-node.
To compile this driver as a module, choose M here: the module
- will be called i2c-multi-instantiate.
+ will be called serial-multi-instantiate.
config MLX_PLATFORM
tristate "Mellanox Technologies platform support"
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index c12a9b044fd8..9527088bba7f 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -110,7 +110,7 @@ obj-$(CONFIG_TOPSTAR_LAPTOP) += topstar-laptop.o
# Platform drivers
obj-$(CONFIG_FW_ATTR_CLASS) += firmware_attributes_class.o
-obj-$(CONFIG_I2C_MULTI_INSTANTIATE) += i2c-multi-instantiate.o
+obj-$(CONFIG_SERIAL_MULTI_INSTANTIATE) += serial-multi-instantiate.o
obj-$(CONFIG_MLX_PLATFORM) += mlx-platform.o
obj-$(CONFIG_TOUCHSCREEN_DMI) += touchscreen_dmi.o
obj-$(CONFIG_WIRELESS_HOTKEY) += wireless-hotkey.o
diff --git a/drivers/platform/x86/i2c-multi-instantiate.c b/drivers/platform/x86/serial-multi-instantiate.c
similarity index 51%
rename from drivers/platform/x86/i2c-multi-instantiate.c
rename to drivers/platform/x86/serial-multi-instantiate.c
index 4956a1df5b90..9af5bcd466d1 100644
--- a/drivers/platform/x86/i2c-multi-instantiate.c
+++ b/drivers/platform/x86/serial-multi-instantiate.c
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0+
/*
- * I2C multi-instantiate driver, pseudo driver to instantiate multiple
- * i2c-clients from a single fwnode.
+ * Serial multi-instantiate driver, pseudo driver to instantiate multiple
+ * client devices from a single fwnode.
*
* Copyright 2018 Hans de Goede <hdegoede at redhat.com>
*/
@@ -21,29 +21,29 @@
#define IRQ_RESOURCE_GPIO 1
#define IRQ_RESOURCE_APIC 2
-struct i2c_inst_data {
+struct smi_instance {
const char *type;
unsigned int flags;
int irq_idx;
};
-struct i2c_multi_inst_data {
- int num_clients;
- struct i2c_client *clients[];
+struct smi {
+ int i2c_num;
+ struct i2c_client *i2c_devs[];
};
-static int i2c_multi_inst_probe(struct platform_device *pdev)
+static int smi_probe(struct platform_device *pdev)
{
- struct i2c_multi_inst_data *multi;
- const struct i2c_inst_data *inst_data;
struct i2c_board_info board_info = {};
+ const struct smi_instance *inst;
struct device *dev = &pdev->dev;
struct acpi_device *adev;
+ struct smi *smi;
char name[32];
int i, ret;
- inst_data = device_get_match_data(dev);
- if (!inst_data) {
+ inst = device_get_match_data(dev);
+ if (!inst) {
dev_err(dev, "Error ACPI match data is missing\n");
return -ENODEV;
}
@@ -55,33 +55,32 @@ static int i2c_multi_inst_probe(struct platform_device *pdev)
if (ret < 0)
return ret;
- multi = devm_kmalloc(dev, struct_size(multi, clients, ret), GFP_KERNEL);
- if (!multi)
+ smi = devm_kmalloc(dev, struct_size(smi, i2c_devs, ret), GFP_KERNEL);
+ if (!smi)
return -ENOMEM;
- multi->num_clients = ret;
+ smi->i2c_num = ret;
- for (i = 0; i < multi->num_clients && inst_data[i].type; i++) {
+ for (i = 0; i < smi->i2c_num && inst[i].type; i++) {
memset(&board_info, 0, sizeof(board_info));
- strlcpy(board_info.type, inst_data[i].type, I2C_NAME_SIZE);
- snprintf(name, sizeof(name), "%s-%s.%d", dev_name(dev),
- inst_data[i].type, i);
+ strlcpy(board_info.type, inst[i].type, I2C_NAME_SIZE);
+ snprintf(name, sizeof(name), "%s-%s.%d", dev_name(dev), inst[i].type, i);
board_info.dev_name = name;
- switch (inst_data[i].flags & IRQ_RESOURCE_TYPE) {
+ switch (inst[i].flags & IRQ_RESOURCE_TYPE) {
case IRQ_RESOURCE_GPIO:
- ret = acpi_dev_gpio_irq_get(adev, inst_data[i].irq_idx);
+ ret = acpi_dev_gpio_irq_get(adev, inst[i].irq_idx);
if (ret < 0) {
dev_err(dev, "Error requesting irq at index %d: %d\n",
- inst_data[i].irq_idx, ret);
+ inst[i].irq_idx, ret);
goto error;
}
board_info.irq = ret;
break;
case IRQ_RESOURCE_APIC:
- ret = platform_get_irq(pdev, inst_data[i].irq_idx);
+ ret = platform_get_irq(pdev, inst[i].irq_idx);
if (ret < 0) {
dev_dbg(dev, "Error requesting irq at index %d: %d\n",
- inst_data[i].irq_idx, ret);
+ inst[i].irq_idx, ret);
goto error;
}
board_info.irq = ret;
@@ -90,48 +89,48 @@ static int i2c_multi_inst_probe(struct platform_device *pdev)
board_info.irq = 0;
break;
}
- multi->clients[i] = i2c_acpi_new_device(dev, i, &board_info);
- if (IS_ERR(multi->clients[i])) {
- ret = dev_err_probe(dev, PTR_ERR(multi->clients[i]),
+ smi->i2c_devs[i] = i2c_acpi_new_device(dev, i, &board_info);
+ if (IS_ERR(smi->i2c_devs[i])) {
+ ret = dev_err_probe(dev, PTR_ERR(smi->i2c_devs[i]),
"Error creating i2c-client, idx %d\n", i);
goto error;
}
}
- if (i < multi->num_clients) {
+ if (i < smi->i2c_num) {
dev_err(dev, "Error finding driver, idx %d\n", i);
ret = -ENODEV;
goto error;
}
- platform_set_drvdata(pdev, multi);
+ platform_set_drvdata(pdev, smi);
return 0;
error:
while (--i >= 0)
- i2c_unregister_device(multi->clients[i]);
+ i2c_unregister_device(smi->i2c_devs[i]);
return ret;
}
-static int i2c_multi_inst_remove(struct platform_device *pdev)
+static int smi_remove(struct platform_device *pdev)
{
- struct i2c_multi_inst_data *multi = platform_get_drvdata(pdev);
+ struct smi *smi = platform_get_drvdata(pdev);
int i;
- for (i = 0; i < multi->num_clients; i++)
- i2c_unregister_device(multi->clients[i]);
+ for (i = 0; i < smi->i2c_num; i++)
+ i2c_unregister_device(smi->i2c_devs[i]);
return 0;
}
-static const struct i2c_inst_data bsg1160_data[] = {
+static const struct smi_instance bsg1160_data[] = {
{ "bmc150_accel", IRQ_RESOURCE_GPIO, 0 },
{ "bmc150_magn" },
{ "bmg160" },
{}
};
-static const struct i2c_inst_data bsg2150_data[] = {
+static const struct smi_instance bsg2150_data[] = {
{ "bmc150_accel", IRQ_RESOURCE_GPIO, 0 },
{ "bmc150_magn" },
/* The resources describe a 3th client, but it is not really there. */
@@ -139,7 +138,7 @@ static const struct i2c_inst_data bsg2150_data[] = {
{}
};
-static const struct i2c_inst_data int3515_data[] = {
+static const struct smi_instance int3515_data[] = {
{ "tps6598x", IRQ_RESOURCE_APIC, 0 },
{ "tps6598x", IRQ_RESOURCE_APIC, 1 },
{ "tps6598x", IRQ_RESOURCE_APIC, 2 },
@@ -148,27 +147,27 @@ static const struct i2c_inst_data int3515_data[] = {
};
/*
- * Note new device-ids must also be added to i2c_multi_instantiate_ids in
+ * Note new device-ids must also be added to ignore_serial_bus_ids in
* drivers/acpi/scan.c: acpi_device_enumeration_by_parent().
*/
-static const struct acpi_device_id i2c_multi_inst_acpi_ids[] = {
+static const struct acpi_device_id smi_acpi_ids[] = {
{ "BSG1160", (unsigned long)bsg1160_data },
{ "BSG2150", (unsigned long)bsg2150_data },
{ "INT3515", (unsigned long)int3515_data },
{ }
};
-MODULE_DEVICE_TABLE(acpi, i2c_multi_inst_acpi_ids);
+MODULE_DEVICE_TABLE(acpi, smi_acpi_ids);
-static struct platform_driver i2c_multi_inst_driver = {
+static struct platform_driver smi_driver = {
.driver = {
- .name = "I2C multi instantiate pseudo device driver",
- .acpi_match_table = i2c_multi_inst_acpi_ids,
+ .name = "Serial bus multi instantiate pseudo device driver",
+ .acpi_match_table = smi_acpi_ids,
},
- .probe = i2c_multi_inst_probe,
- .remove = i2c_multi_inst_remove,
+ .probe = smi_probe,
+ .remove = smi_remove,
};
-module_platform_driver(i2c_multi_inst_driver);
+module_platform_driver(smi_driver);
-MODULE_DESCRIPTION("I2C multi instantiate pseudo device driver");
+MODULE_DESCRIPTION("Serial multi instantiate pseudo device driver");
MODULE_AUTHOR("Hans de Goede <hdegoede at redhat.com>");
MODULE_LICENSE("GPL");
--
2.25.1
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