[PATCH v2 2/3] leds: simatic-ipc-leds-gpio: split up into multiple drivers
From: Henning Schild
Date: Wed Mar 01 2023 - 12:02:40 EST
In order to clearly describe the dependencies between the GPIO
controller drivers and the users the driver is split up into a core,
two drivers and a common header.
Signed-off-by: Henning Schild <henning.schild@xxxxxxxxxxx>
---
drivers/leds/simple/Makefile | 4 +-
.../simple/simatic-ipc-leds-gpio-apollolake.c | 64 +++++++
.../leds/simple/simatic-ipc-leds-gpio-core.c | 103 ++++++++++++
.../simple/simatic-ipc-leds-gpio-f7188x.c | 64 +++++++
drivers/leds/simple/simatic-ipc-leds-gpio.c | 159 ------------------
drivers/leds/simple/simatic-ipc-leds-gpio.h | 22 +++
drivers/platform/x86/simatic-ipc.c | 7 +-
7 files changed, 260 insertions(+), 163 deletions(-)
create mode 100644 drivers/leds/simple/simatic-ipc-leds-gpio-apollolake.c
create mode 100644 drivers/leds/simple/simatic-ipc-leds-gpio-core.c
create mode 100644 drivers/leds/simple/simatic-ipc-leds-gpio-f7188x.c
delete mode 100644 drivers/leds/simple/simatic-ipc-leds-gpio.c
create mode 100644 drivers/leds/simple/simatic-ipc-leds-gpio.h
diff --git a/drivers/leds/simple/Makefile b/drivers/leds/simple/Makefile
index 1c7ef5e1324b..ed9057f7b6da 100644
--- a/drivers/leds/simple/Makefile
+++ b/drivers/leds/simple/Makefile
@@ -1,3 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_LEDS_SIEMENS_SIMATIC_IPC) += simatic-ipc-leds.o
-obj-$(CONFIG_LEDS_SIEMENS_SIMATIC_IPC) += simatic-ipc-leds-gpio.o
+obj-$(CONFIG_LEDS_SIEMENS_SIMATIC_IPC) += simatic-ipc-leds-gpio-core.o
+obj-$(CONFIG_LEDS_SIEMENS_SIMATIC_IPC) += simatic-ipc-leds-gpio-apollolake.o
+obj-$(CONFIG_LEDS_SIEMENS_SIMATIC_IPC) += simatic-ipc-leds-gpio-f7188x.o
diff --git a/drivers/leds/simple/simatic-ipc-leds-gpio-apollolake.c b/drivers/leds/simple/simatic-ipc-leds-gpio-apollolake.c
new file mode 100644
index 000000000000..8b874cdb38a1
--- /dev/null
+++ b/drivers/leds/simple/simatic-ipc-leds-gpio-apollolake.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Siemens SIMATIC IPC driver for GPIO based LEDs
+ *
+ * Copyright (c) Siemens AG, 2023
+ *
+ * Author:
+ * Henning Schild <henning.schild@xxxxxxxxxxx>
+ */
+
+#include <linux/gpio/machine.h>
+#include <linux/gpio/consumer.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/x86/simatic-ipc-base.h>
+#include "simatic-ipc-leds-gpio.h"
+
+static struct gpiod_lookup_table simatic_ipc_led_gpio_table = {
+ .dev_id = "leds-gpio",
+ .table = {
+ GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 52, NULL, 0, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 53, NULL, 1, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 57, NULL, 2, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 58, NULL, 3, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 60, NULL, 4, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 51, NULL, 5, GPIO_ACTIVE_LOW),
+ },
+};
+
+static struct gpiod_lookup_table simatic_ipc_led_gpio_table_extra = {
+ .dev_id = NULL,
+ .table = {
+ GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 56, NULL, 6, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 59, NULL, 7, GPIO_ACTIVE_HIGH),
+ },
+};
+
+static int simatic_ipc_leds_gpio_apollolake_probe(struct platform_device *pdev)
+{
+ return simatic_ipc_leds_gpio_probe(pdev, &simatic_ipc_led_gpio_table,
+ &simatic_ipc_led_gpio_table_extra);
+}
+
+static int simatic_ipc_leds_gpio_apollolake_remove(struct platform_device *pdev)
+{
+ return simatic_ipc_leds_gpio_remove(pdev, &simatic_ipc_led_gpio_table,
+ &simatic_ipc_led_gpio_table_extra);
+}
+
+static struct platform_driver simatic_ipc_led_gpio_apollolake_driver = {
+ .probe = simatic_ipc_leds_gpio_apollolake_probe,
+ .remove = simatic_ipc_leds_gpio_apollolake_remove,
+ .driver = {
+ .name = KBUILD_MODNAME,
+ },
+};
+
+module_platform_driver(simatic_ipc_led_gpio_apollolake_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" KBUILD_MODNAME);
+MODULE_SOFTDEP("pre: simatic-ipc-leds-gpio-core platform:apollolake-pinctrl");
+MODULE_AUTHOR("Henning Schild <henning.schild@xxxxxxxxxxx>");
diff --git a/drivers/leds/simple/simatic-ipc-leds-gpio-core.c b/drivers/leds/simple/simatic-ipc-leds-gpio-core.c
new file mode 100644
index 000000000000..ad5c9f8986d4
--- /dev/null
+++ b/drivers/leds/simple/simatic-ipc-leds-gpio-core.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Siemens SIMATIC IPC driver for GPIO based LEDs
+ *
+ * Copyright (c) Siemens AG, 2023
+ *
+ * Author:
+ * Henning Schild <henning.schild@xxxxxxxxxxx>
+ */
+
+#include <linux/gpio/machine.h>
+#include <linux/gpio/consumer.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/x86/simatic-ipc-base.h>
+#include "simatic-ipc-leds-gpio.h"
+
+static struct platform_device *simatic_leds_pdev;
+
+static const struct gpio_led simatic_ipc_gpio_leds[] = {
+ { .name = "red:" LED_FUNCTION_STATUS "-1" },
+ { .name = "green:" LED_FUNCTION_STATUS "-1" },
+ { .name = "red:" LED_FUNCTION_STATUS "-2" },
+ { .name = "green:" LED_FUNCTION_STATUS "-2" },
+ { .name = "red:" LED_FUNCTION_STATUS "-3" },
+ { .name = "green:" LED_FUNCTION_STATUS "-3" },
+};
+
+static const struct gpio_led_platform_data simatic_ipc_gpio_leds_pdata = {
+ .num_leds = ARRAY_SIZE(simatic_ipc_gpio_leds),
+ .leds = simatic_ipc_gpio_leds,
+};
+
+int simatic_ipc_leds_gpio_remove(struct platform_device *pdev,
+ struct gpiod_lookup_table *table,
+ struct gpiod_lookup_table *table_extra)
+{
+ gpiod_remove_lookup_table(table);
+ gpiod_remove_lookup_table(table_extra);
+ platform_device_unregister(simatic_leds_pdev);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(simatic_ipc_leds_gpio_remove);
+
+int simatic_ipc_leds_gpio_probe(struct platform_device *pdev,
+ struct gpiod_lookup_table *table,
+ struct gpiod_lookup_table *table_extra)
+{
+ const struct simatic_ipc_platform *plat = pdev->dev.platform_data;
+ struct device *dev = &pdev->dev;
+ struct gpio_desc *gpiod;
+ int err;
+
+ switch (plat->devmode) {
+ case SIMATIC_IPC_DEVICE_127E:
+ case SIMATIC_IPC_DEVICE_227G:
+ break;
+ default:
+ return -ENODEV;
+ }
+
+ gpiod_add_lookup_table(table);
+ simatic_leds_pdev = platform_device_register_resndata(NULL,
+ "leds-gpio", PLATFORM_DEVID_NONE, NULL, 0,
+ &simatic_ipc_gpio_leds_pdata,
+ sizeof(simatic_ipc_gpio_leds_pdata));
+ if (IS_ERR(simatic_leds_pdev)) {
+ err = PTR_ERR(simatic_leds_pdev);
+ goto out;
+ }
+
+ table_extra->dev_id = dev_name(dev);
+ gpiod_add_lookup_table(table_extra);
+
+ /* PM_BIOS_BOOT_N */
+ gpiod = gpiod_get_index(dev, NULL, 6, GPIOD_OUT_LOW);
+ if (IS_ERR(gpiod)) {
+ err = PTR_ERR(gpiod);
+ goto out;
+ }
+ gpiod_put(gpiod);
+
+ /* PM_WDT_OUT */
+ gpiod = gpiod_get_index(dev, NULL, 7, GPIOD_OUT_LOW);
+ if (IS_ERR(gpiod)) {
+ err = PTR_ERR(gpiod);
+ goto out;
+ }
+ gpiod_put(gpiod);
+
+ return 0;
+out:
+ simatic_ipc_leds_gpio_remove(pdev, table, table_extra);
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(simatic_ipc_leds_gpio_probe);
+
+MODULE_LICENSE("GPL v2");
+MODULE_SOFTDEP("pre: platform:leds-gpio");
+MODULE_AUTHOR("Henning Schild <henning.schild@xxxxxxxxxxx>");
diff --git a/drivers/leds/simple/simatic-ipc-leds-gpio-f7188x.c b/drivers/leds/simple/simatic-ipc-leds-gpio-f7188x.c
new file mode 100644
index 000000000000..d3dff1bffae3
--- /dev/null
+++ b/drivers/leds/simple/simatic-ipc-leds-gpio-f7188x.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Siemens SIMATIC IPC driver for GPIO based LEDs
+ *
+ * Copyright (c) Siemens AG, 2023
+ *
+ * Author:
+ * Henning Schild <henning.schild@xxxxxxxxxxx>
+ */
+
+#include <linux/gpio/machine.h>
+#include <linux/gpio/consumer.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/x86/simatic-ipc-base.h>
+#include "simatic-ipc-leds-gpio.h"
+
+static struct gpiod_lookup_table simatic_ipc_led_gpio_table = {
+ .dev_id = "leds-gpio",
+ .table = {
+ GPIO_LOOKUP_IDX("gpio-f7188x-2", 0, NULL, 0, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("gpio-f7188x-2", 1, NULL, 1, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("gpio-f7188x-2", 2, NULL, 2, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("gpio-f7188x-2", 3, NULL, 3, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("gpio-f7188x-2", 4, NULL, 4, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("gpio-f7188x-2", 5, NULL, 5, GPIO_ACTIVE_LOW),
+ },
+};
+
+static struct gpiod_lookup_table simatic_ipc_led_gpio_table_extra = {
+ .dev_id = NULL,
+ .table = {
+ GPIO_LOOKUP_IDX("gpio-f7188x-3", 6, NULL, 6, GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP_IDX("gpio-f7188x-3", 7, NULL, 7, GPIO_ACTIVE_HIGH),
+ },
+};
+
+static int simatic_ipc_leds_gpio_f7188x_probe(struct platform_device *pdev)
+{
+ return simatic_ipc_leds_gpio_probe(pdev, &simatic_ipc_led_gpio_table,
+ &simatic_ipc_led_gpio_table_extra);
+}
+
+static int simatic_ipc_leds_gpio_f7188x_remove(struct platform_device *pdev)
+{
+ return simatic_ipc_leds_gpio_remove(pdev, &simatic_ipc_led_gpio_table,
+ &simatic_ipc_led_gpio_table_extra);
+}
+
+static struct platform_driver simatic_ipc_led_gpio_driver = {
+ .probe = simatic_ipc_leds_gpio_f7188x_probe,
+ .remove = simatic_ipc_leds_gpio_f7188x_remove,
+ .driver = {
+ .name = KBUILD_MODNAME,
+ },
+};
+
+module_platform_driver(simatic_ipc_led_gpio_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" KBUILD_MODNAME);
+MODULE_SOFTDEP("pre: simatic-ipc-leds-gpio-core gpio_f7188x");
+MODULE_AUTHOR("Henning Schild <henning.schild@xxxxxxxxxxx>");
diff --git a/drivers/leds/simple/simatic-ipc-leds-gpio.c b/drivers/leds/simple/simatic-ipc-leds-gpio.c
deleted file mode 100644
index ba0f24638af5..000000000000
--- a/drivers/leds/simple/simatic-ipc-leds-gpio.c
+++ /dev/null
@@ -1,159 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Siemens SIMATIC IPC driver for GPIO based LEDs
- *
- * Copyright (c) Siemens AG, 2022
- *
- * Authors:
- * Henning Schild <henning.schild@xxxxxxxxxxx>
- */
-
-#include <linux/gpio/machine.h>
-#include <linux/gpio/consumer.h>
-#include <linux/leds.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/platform_data/x86/simatic-ipc-base.h>
-
-static struct gpiod_lookup_table *simatic_ipc_led_gpio_table;
-static struct gpiod_lookup_table *simatic_ipc_led_gpio_table_extra;
-
-static struct gpiod_lookup_table simatic_ipc_led_gpio_table_127e = {
- .dev_id = "leds-gpio",
- .table = {
- GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 52, NULL, 0, GPIO_ACTIVE_LOW),
- GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 53, NULL, 1, GPIO_ACTIVE_LOW),
- GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 57, NULL, 2, GPIO_ACTIVE_LOW),
- GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 58, NULL, 3, GPIO_ACTIVE_LOW),
- GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 60, NULL, 4, GPIO_ACTIVE_LOW),
- GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 51, NULL, 5, GPIO_ACTIVE_LOW),
- },
-};
-
-static struct gpiod_lookup_table simatic_ipc_led_gpio_table_127e_extra = {
- .dev_id = NULL,
- .table = {
- GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 56, NULL, 6, GPIO_ACTIVE_LOW),
- GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 59, NULL, 7, GPIO_ACTIVE_HIGH),
- },
-};
-
-static struct gpiod_lookup_table simatic_ipc_led_gpio_table_227g = {
- .dev_id = "leds-gpio",
- .table = {
- GPIO_LOOKUP_IDX("gpio-f7188x-2", 0, NULL, 0, GPIO_ACTIVE_LOW),
- GPIO_LOOKUP_IDX("gpio-f7188x-2", 1, NULL, 1, GPIO_ACTIVE_LOW),
- GPIO_LOOKUP_IDX("gpio-f7188x-2", 2, NULL, 2, GPIO_ACTIVE_LOW),
- GPIO_LOOKUP_IDX("gpio-f7188x-2", 3, NULL, 3, GPIO_ACTIVE_LOW),
- GPIO_LOOKUP_IDX("gpio-f7188x-2", 4, NULL, 4, GPIO_ACTIVE_LOW),
- GPIO_LOOKUP_IDX("gpio-f7188x-2", 5, NULL, 5, GPIO_ACTIVE_LOW),
- },
-};
-
-static struct gpiod_lookup_table simatic_ipc_led_gpio_table_227g_extra = {
- .dev_id = NULL,
- .table = {
- GPIO_LOOKUP_IDX("gpio-f7188x-3", 6, NULL, 6, GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP_IDX("gpio-f7188x-3", 7, NULL, 7, GPIO_ACTIVE_HIGH),
- },
-};
-
-static const struct gpio_led simatic_ipc_gpio_leds[] = {
- { .name = "red:" LED_FUNCTION_STATUS "-1" },
- { .name = "green:" LED_FUNCTION_STATUS "-1" },
- { .name = "red:" LED_FUNCTION_STATUS "-2" },
- { .name = "green:" LED_FUNCTION_STATUS "-2" },
- { .name = "red:" LED_FUNCTION_STATUS "-3" },
- { .name = "green:" LED_FUNCTION_STATUS "-3" },
-};
-
-static const struct gpio_led_platform_data simatic_ipc_gpio_leds_pdata = {
- .num_leds = ARRAY_SIZE(simatic_ipc_gpio_leds),
- .leds = simatic_ipc_gpio_leds,
-};
-
-static struct platform_device *simatic_leds_pdev;
-
-static int simatic_ipc_leds_gpio_remove(struct platform_device *pdev)
-{
- gpiod_remove_lookup_table(simatic_ipc_led_gpio_table);
- gpiod_remove_lookup_table(simatic_ipc_led_gpio_table_extra);
- platform_device_unregister(simatic_leds_pdev);
-
- return 0;
-}
-
-static int simatic_ipc_leds_gpio_probe(struct platform_device *pdev)
-{
- const struct simatic_ipc_platform *plat = pdev->dev.platform_data;
- struct device *dev = &pdev->dev;
- struct gpio_desc *gpiod;
- int err;
-
- switch (plat->devmode) {
- case SIMATIC_IPC_DEVICE_127E:
- if (!IS_ENABLED(CONFIG_PINCTRL_BROXTON))
- return -ENODEV;
- simatic_ipc_led_gpio_table = &simatic_ipc_led_gpio_table_127e;
- simatic_ipc_led_gpio_table_extra = &simatic_ipc_led_gpio_table_127e_extra;
- break;
- case SIMATIC_IPC_DEVICE_227G:
- if (!IS_ENABLED(CONFIG_GPIO_F7188X))
- return -ENODEV;
- request_module("gpio-f7188x");
- simatic_ipc_led_gpio_table = &simatic_ipc_led_gpio_table_227g;
- simatic_ipc_led_gpio_table_extra = &simatic_ipc_led_gpio_table_227g_extra;
- break;
- default:
- return -ENODEV;
- }
-
- gpiod_add_lookup_table(simatic_ipc_led_gpio_table);
- simatic_leds_pdev = platform_device_register_resndata(NULL,
- "leds-gpio", PLATFORM_DEVID_NONE, NULL, 0,
- &simatic_ipc_gpio_leds_pdata,
- sizeof(simatic_ipc_gpio_leds_pdata));
- if (IS_ERR(simatic_leds_pdev)) {
- err = PTR_ERR(simatic_leds_pdev);
- goto out;
- }
-
- simatic_ipc_led_gpio_table_extra->dev_id = dev_name(dev);
- gpiod_add_lookup_table(simatic_ipc_led_gpio_table_extra);
-
- /* PM_BIOS_BOOT_N */
- gpiod = gpiod_get_index(dev, NULL, 6, GPIOD_OUT_LOW);
- if (IS_ERR(gpiod)) {
- err = PTR_ERR(gpiod);
- goto out;
- }
- gpiod_put(gpiod);
-
- /* PM_WDT_OUT */
- gpiod = gpiod_get_index(dev, NULL, 7, GPIOD_OUT_LOW);
- if (IS_ERR(gpiod)) {
- err = PTR_ERR(gpiod);
- goto out;
- }
- gpiod_put(gpiod);
-
- return 0;
-out:
- simatic_ipc_leds_gpio_remove(pdev);
-
- return err;
-}
-
-static struct platform_driver simatic_ipc_led_gpio_driver = {
- .probe = simatic_ipc_leds_gpio_probe,
- .remove = simatic_ipc_leds_gpio_remove,
- .driver = {
- .name = KBUILD_MODNAME,
- }
-};
-module_platform_driver(simatic_ipc_led_gpio_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:" KBUILD_MODNAME);
-MODULE_SOFTDEP("pre: platform:leds-gpio");
-MODULE_AUTHOR("Henning Schild <henning.schild@xxxxxxxxxxx>");
diff --git a/drivers/leds/simple/simatic-ipc-leds-gpio.h b/drivers/leds/simple/simatic-ipc-leds-gpio.h
new file mode 100644
index 000000000000..bf258c32f83d
--- /dev/null
+++ b/drivers/leds/simple/simatic-ipc-leds-gpio.h
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Siemens SIMATIC IPC driver for GPIO based LEDs
+ *
+ * Copyright (c) Siemens AG, 2023
+ *
+ * Author:
+ * Henning Schild <henning.schild@xxxxxxxxxxx>
+ */
+
+#ifndef _SIMATIC_IPC_LEDS_GPIO_H
+#define _SIMATIC_IPC_LEDS_GPIO_H
+
+int simatic_ipc_leds_gpio_probe(struct platform_device *pdev,
+ struct gpiod_lookup_table *table,
+ struct gpiod_lookup_table *table_extra);
+
+int simatic_ipc_leds_gpio_remove(struct platform_device *pdev,
+ struct gpiod_lookup_table *table,
+ struct gpiod_lookup_table *table_extra);
+
+#endif /* _SIMATIC_IPC_LEDS_GPIO_H */
diff --git a/drivers/platform/x86/simatic-ipc.c b/drivers/platform/x86/simatic-ipc.c
index b3622419cd1a..c773995b230d 100644
--- a/drivers/platform/x86/simatic-ipc.c
+++ b/drivers/platform/x86/simatic-ipc.c
@@ -68,9 +68,10 @@ static int register_platform_devices(u32 station_id)
}
if (ledmode != SIMATIC_IPC_DEVICE_NONE) {
- if (ledmode == SIMATIC_IPC_DEVICE_127E ||
- ledmode == SIMATIC_IPC_DEVICE_227G)
- pdevname = KBUILD_MODNAME "_leds_gpio";
+ if (ledmode == SIMATIC_IPC_DEVICE_127E)
+ pdevname = KBUILD_MODNAME "_leds_gpio_apollolake";
+ if (ledmode == SIMATIC_IPC_DEVICE_227G)
+ pdevname = KBUILD_MODNAME "_leds_gpio_f7188x";
platform_data.devmode = ledmode;
ipc_led_platform_device =
platform_device_register_data(NULL,
--
2.39.2