changes since v3:
- update Kconfig as well
- drop chip names from comment in driver header
- add manufacturer check for Fintek again, Nuvoton not possible
- drop revision printing for Nuvoton
- restructure defines again
- add new model 427G
changes since v2: (p1 only)
- rename macros that change behavior
- use chip type not device id in the macros
- reorder defines a bit
changes since v1:
- remove unused define
- fix bug where (base + 2) was used as second data bit
- add macros for "inverted" and "single data bit"
This series first enables a SuperIO GPIO driver to support a chip from
the vendor Nuvoton, the driver is for Fintek devices but those just are
very similar. And in watchdog and hwmon subsystems these SuperIO drivers
also share code and are sometimes called a family.
In another step the individual banks receive a label to tell them apart,
a step which potentially changes an interface to legacy users that might
rely on all banks having the same label, or an exact label. But since a
later patch wants to use GPIO_LOOKUP unique labels are needed and i
decided to assign them for all supported chips.
In a following patch the Simatic GPIO LED driver is extended to provide
LEDs in case that SuperIO GPIO driver can be loaded.
Last but not least the watchdog module of that same SuperIO gets loaded
on a best effort basis.
Note similar patches have appreared before as
"[PATCH v3 0/1] add device driver for Nuvoton SIO gpio function"
The main difference here is that i added chip support to an existing
driver instead of creating a new one. And that i actually propose all
patches and do not just have the LED patch for Simatic as an example.
Also note that the patches are based on
"[PATCH v6 00/12] platform/x86: introduce p2sb_bar() helper"
Henning Schild (5):
gpio-f7188x: Add GPIO support for Nuvoton NCT6116
gpio-f7188x: use unique labels for banks/chips
leds: simatic-ipc-leds-gpio: add new model 227G
platform/x86: simatic-ipc: enable watchdog for 227G
platform/x86: simatic-ipc: add new model 427G
drivers/gpio/Kconfig | 3 +-
drivers/gpio/gpio-f7188x.c | 229 +++++++++++-------
drivers/leds/simple/simatic-ipc-leds-gpio.c | 42 +++-
drivers/platform/x86/simatic-ipc.c | 10 +-
.../platform_data/x86/simatic-ipc-base.h | 1 +
include/linux/platform_data/x86/simatic-ipc.h | 2 +
6 files changed, 194 insertions(+), 93 deletions(-)
--
2.35.1
So that drivers building on top can find those pins with GPIO_LOOKUP
helpers.
Reviewed-by: Linus Walleij <[email protected]>
Acked-by: Simon Guinot <[email protected]>
Signed-off-by: Henning Schild <[email protected]>
---
drivers/gpio/gpio-f7188x.c | 138 ++++++++++++++++++-------------------
1 file changed, 69 insertions(+), 69 deletions(-)
diff --git a/drivers/gpio/gpio-f7188x.c b/drivers/gpio/gpio-f7188x.c
index 820ac5d60fda..c9b18c6d8464 100644
--- a/drivers/gpio/gpio-f7188x.c
+++ b/drivers/gpio/gpio-f7188x.c
@@ -162,10 +162,10 @@ static void f7188x_gpio_set(struct gpio_chip *chip, unsigned offset, int value);
static int f7188x_gpio_set_config(struct gpio_chip *chip, unsigned offset,
unsigned long config);
-#define F7188X_GPIO_BANK(_base, _ngpio, _regbase) \
+#define F7188X_GPIO_BANK(_base, _ngpio, _regbase, _label) \
{ \
.chip = { \
- .label = DRVNAME, \
+ .label = _label, \
.owner = THIS_MODULE, \
.get_direction = f7188x_gpio_get_direction, \
.direction_input = f7188x_gpio_direction_in, \
@@ -190,98 +190,98 @@ static int f7188x_gpio_set_config(struct gpio_chip *chip, unsigned offset,
#define gpio_data_single(type) ((type) == nct6116d)
static struct f7188x_gpio_bank f71869_gpio_bank[] = {
- F7188X_GPIO_BANK(0, 6, 0xF0),
- F7188X_GPIO_BANK(10, 8, 0xE0),
- F7188X_GPIO_BANK(20, 8, 0xD0),
- F7188X_GPIO_BANK(30, 8, 0xC0),
- F7188X_GPIO_BANK(40, 8, 0xB0),
- F7188X_GPIO_BANK(50, 5, 0xA0),
- F7188X_GPIO_BANK(60, 6, 0x90),
+ F7188X_GPIO_BANK(0, 6, 0xF0, DRVNAME "-0"),
+ F7188X_GPIO_BANK(10, 8, 0xE0, DRVNAME "-1"),
+ F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"),
+ F7188X_GPIO_BANK(30, 8, 0xC0, DRVNAME "-3"),
+ F7188X_GPIO_BANK(40, 8, 0xB0, DRVNAME "-4"),
+ F7188X_GPIO_BANK(50, 5, 0xA0, DRVNAME "-5"),
+ F7188X_GPIO_BANK(60, 6, 0x90, DRVNAME "-6"),
};
static struct f7188x_gpio_bank f71869a_gpio_bank[] = {
- F7188X_GPIO_BANK(0, 6, 0xF0),
- F7188X_GPIO_BANK(10, 8, 0xE0),
- F7188X_GPIO_BANK(20, 8, 0xD0),
- F7188X_GPIO_BANK(30, 8, 0xC0),
- F7188X_GPIO_BANK(40, 8, 0xB0),
- F7188X_GPIO_BANK(50, 5, 0xA0),
- F7188X_GPIO_BANK(60, 8, 0x90),
- F7188X_GPIO_BANK(70, 8, 0x80),
+ F7188X_GPIO_BANK(0, 6, 0xF0, DRVNAME "-0"),
+ F7188X_GPIO_BANK(10, 8, 0xE0, DRVNAME "-1"),
+ F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"),
+ F7188X_GPIO_BANK(30, 8, 0xC0, DRVNAME "-3"),
+ F7188X_GPIO_BANK(40, 8, 0xB0, DRVNAME "-4"),
+ F7188X_GPIO_BANK(50, 5, 0xA0, DRVNAME "-5"),
+ F7188X_GPIO_BANK(60, 8, 0x90, DRVNAME "-6"),
+ F7188X_GPIO_BANK(70, 8, 0x80, DRVNAME "-7"),
};
static struct f7188x_gpio_bank f71882_gpio_bank[] = {
- F7188X_GPIO_BANK(0, 8, 0xF0),
- F7188X_GPIO_BANK(10, 8, 0xE0),
- F7188X_GPIO_BANK(20, 8, 0xD0),
- F7188X_GPIO_BANK(30, 4, 0xC0),
- F7188X_GPIO_BANK(40, 4, 0xB0),
+ F7188X_GPIO_BANK(0, 8, 0xF0, DRVNAME "-0"),
+ F7188X_GPIO_BANK(10, 8, 0xE0, DRVNAME "-1"),
+ F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"),
+ F7188X_GPIO_BANK(30, 4, 0xC0, DRVNAME "-3"),
+ F7188X_GPIO_BANK(40, 4, 0xB0, DRVNAME "-4"),
};
static struct f7188x_gpio_bank f71889a_gpio_bank[] = {
- F7188X_GPIO_BANK(0, 7, 0xF0),
- F7188X_GPIO_BANK(10, 7, 0xE0),
- F7188X_GPIO_BANK(20, 8, 0xD0),
- F7188X_GPIO_BANK(30, 8, 0xC0),
- F7188X_GPIO_BANK(40, 8, 0xB0),
- F7188X_GPIO_BANK(50, 5, 0xA0),
- F7188X_GPIO_BANK(60, 8, 0x90),
- F7188X_GPIO_BANK(70, 8, 0x80),
+ F7188X_GPIO_BANK(0, 7, 0xF0, DRVNAME "-0"),
+ F7188X_GPIO_BANK(10, 7, 0xE0, DRVNAME "-1"),
+ F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"),
+ F7188X_GPIO_BANK(30, 8, 0xC0, DRVNAME "-3"),
+ F7188X_GPIO_BANK(40, 8, 0xB0, DRVNAME "-4"),
+ F7188X_GPIO_BANK(50, 5, 0xA0, DRVNAME "-5"),
+ F7188X_GPIO_BANK(60, 8, 0x90, DRVNAME "-6"),
+ F7188X_GPIO_BANK(70, 8, 0x80, DRVNAME "-7"),
};
static struct f7188x_gpio_bank f71889_gpio_bank[] = {
- F7188X_GPIO_BANK(0, 7, 0xF0),
- F7188X_GPIO_BANK(10, 7, 0xE0),
- F7188X_GPIO_BANK(20, 8, 0xD0),
- F7188X_GPIO_BANK(30, 8, 0xC0),
- F7188X_GPIO_BANK(40, 8, 0xB0),
- F7188X_GPIO_BANK(50, 5, 0xA0),
- F7188X_GPIO_BANK(60, 8, 0x90),
- F7188X_GPIO_BANK(70, 8, 0x80),
+ F7188X_GPIO_BANK(0, 7, 0xF0, DRVNAME "-0"),
+ F7188X_GPIO_BANK(10, 7, 0xE0, DRVNAME "-1"),
+ F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"),
+ F7188X_GPIO_BANK(30, 8, 0xC0, DRVNAME "-3"),
+ F7188X_GPIO_BANK(40, 8, 0xB0, DRVNAME "-4"),
+ F7188X_GPIO_BANK(50, 5, 0xA0, DRVNAME "-5"),
+ F7188X_GPIO_BANK(60, 8, 0x90, DRVNAME "-6"),
+ F7188X_GPIO_BANK(70, 8, 0x80, DRVNAME "-7"),
};
static struct f7188x_gpio_bank f81866_gpio_bank[] = {
- F7188X_GPIO_BANK(0, 8, 0xF0),
- F7188X_GPIO_BANK(10, 8, 0xE0),
- F7188X_GPIO_BANK(20, 8, 0xD0),
- F7188X_GPIO_BANK(30, 8, 0xC0),
- F7188X_GPIO_BANK(40, 8, 0xB0),
- F7188X_GPIO_BANK(50, 8, 0xA0),
- F7188X_GPIO_BANK(60, 8, 0x90),
- F7188X_GPIO_BANK(70, 8, 0x80),
- F7188X_GPIO_BANK(80, 8, 0x88),
+ F7188X_GPIO_BANK(0, 8, 0xF0, DRVNAME "-0"),
+ F7188X_GPIO_BANK(10, 8, 0xE0, DRVNAME "-1"),
+ F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"),
+ F7188X_GPIO_BANK(30, 8, 0xC0, DRVNAME "-3"),
+ F7188X_GPIO_BANK(40, 8, 0xB0, DRVNAME "-4"),
+ F7188X_GPIO_BANK(50, 8, 0xA0, DRVNAME "-5"),
+ F7188X_GPIO_BANK(60, 8, 0x90, DRVNAME "-6"),
+ F7188X_GPIO_BANK(70, 8, 0x80, DRVNAME "-7"),
+ F7188X_GPIO_BANK(80, 8, 0x88, DRVNAME "-8"),
};
static struct f7188x_gpio_bank f81804_gpio_bank[] = {
- F7188X_GPIO_BANK(0, 8, 0xF0),
- F7188X_GPIO_BANK(10, 8, 0xE0),
- F7188X_GPIO_BANK(20, 8, 0xD0),
- F7188X_GPIO_BANK(50, 8, 0xA0),
- F7188X_GPIO_BANK(60, 8, 0x90),
- F7188X_GPIO_BANK(70, 8, 0x80),
- F7188X_GPIO_BANK(90, 8, 0x98),
+ F7188X_GPIO_BANK(0, 8, 0xF0, DRVNAME "-0"),
+ F7188X_GPIO_BANK(10, 8, 0xE0, DRVNAME "-1"),
+ F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"),
+ F7188X_GPIO_BANK(50, 8, 0xA0, DRVNAME "-3"),
+ F7188X_GPIO_BANK(60, 8, 0x90, DRVNAME "-4"),
+ F7188X_GPIO_BANK(70, 8, 0x80, DRVNAME "-5"),
+ F7188X_GPIO_BANK(90, 8, 0x98, DRVNAME "-6"),
};
static struct f7188x_gpio_bank f81865_gpio_bank[] = {
- F7188X_GPIO_BANK(0, 8, 0xF0),
- F7188X_GPIO_BANK(10, 8, 0xE0),
- F7188X_GPIO_BANK(20, 8, 0xD0),
- F7188X_GPIO_BANK(30, 8, 0xC0),
- F7188X_GPIO_BANK(40, 8, 0xB0),
- F7188X_GPIO_BANK(50, 8, 0xA0),
- F7188X_GPIO_BANK(60, 5, 0x90),
+ F7188X_GPIO_BANK(0, 8, 0xF0, DRVNAME "-0"),
+ F7188X_GPIO_BANK(10, 8, 0xE0, DRVNAME "-1"),
+ F7188X_GPIO_BANK(20, 8, 0xD0, DRVNAME "-2"),
+ F7188X_GPIO_BANK(30, 8, 0xC0, DRVNAME "-3"),
+ F7188X_GPIO_BANK(40, 8, 0xB0, DRVNAME "-4"),
+ F7188X_GPIO_BANK(50, 8, 0xA0, DRVNAME "-5"),
+ F7188X_GPIO_BANK(60, 5, 0x90, DRVNAME "-6"),
};
static struct f7188x_gpio_bank nct6116d_gpio_bank[] = {
- F7188X_GPIO_BANK(0, 8, 0xE0),
- F7188X_GPIO_BANK(10, 8, 0xE4),
- F7188X_GPIO_BANK(20, 8, 0xE8),
- F7188X_GPIO_BANK(30, 8, 0xEC),
- F7188X_GPIO_BANK(40, 8, 0xF0),
- F7188X_GPIO_BANK(50, 8, 0xF4),
- F7188X_GPIO_BANK(60, 8, 0xF8),
- F7188X_GPIO_BANK(70, 1, 0xFC),
+ F7188X_GPIO_BANK(0, 8, 0xE0, DRVNAME "-0"),
+ F7188X_GPIO_BANK(10, 8, 0xE4, DRVNAME "-1"),
+ F7188X_GPIO_BANK(20, 8, 0xE8, DRVNAME "-2"),
+ F7188X_GPIO_BANK(30, 8, 0xEC, DRVNAME "-3"),
+ F7188X_GPIO_BANK(40, 8, 0xF0, DRVNAME "-4"),
+ F7188X_GPIO_BANK(50, 8, 0xF4, DRVNAME "-5"),
+ F7188X_GPIO_BANK(60, 8, 0xF8, DRVNAME "-6"),
+ F7188X_GPIO_BANK(70, 1, 0xFC, DRVNAME "-7"),
};
static int f7188x_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
--
2.35.1
This adds support for the Siemens Simatic IPC427G. A board which
basically works like the 227G added in a previous patch. So all there is
to do is to add the station_id and make it take all the 227G branches.
Signed-off-by: Henning Schild <[email protected]>
---
drivers/platform/x86/simatic-ipc.c | 11 +++++++----
include/linux/platform_data/x86/simatic-ipc.h | 1 +
2 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/platform/x86/simatic-ipc.c b/drivers/platform/x86/simatic-ipc.c
index 8dd686d1c9f1..ca76076fc706 100644
--- a/drivers/platform/x86/simatic-ipc.c
+++ b/drivers/platform/x86/simatic-ipc.c
@@ -41,11 +41,12 @@ static struct {
{SIMATIC_IPC_IPC127E, SIMATIC_IPC_DEVICE_127E, SIMATIC_IPC_DEVICE_NONE},
{SIMATIC_IPC_IPC227D, SIMATIC_IPC_DEVICE_227D, SIMATIC_IPC_DEVICE_NONE},
{SIMATIC_IPC_IPC227E, SIMATIC_IPC_DEVICE_427E, SIMATIC_IPC_DEVICE_227E},
- {SIMATIC_IPC_IPC227G, SIMATIC_IPC_DEVICE_227G, SIMATIC_IPC_DEVICE_NONE},
+ {SIMATIC_IPC_IPC227G, SIMATIC_IPC_DEVICE_227G, SIMATIC_IPC_DEVICE_227G},
{SIMATIC_IPC_IPC277E, SIMATIC_IPC_DEVICE_NONE, SIMATIC_IPC_DEVICE_227E},
{SIMATIC_IPC_IPC427D, SIMATIC_IPC_DEVICE_427E, SIMATIC_IPC_DEVICE_NONE},
{SIMATIC_IPC_IPC427E, SIMATIC_IPC_DEVICE_427E, SIMATIC_IPC_DEVICE_427E},
{SIMATIC_IPC_IPC477E, SIMATIC_IPC_DEVICE_NONE, SIMATIC_IPC_DEVICE_427E},
+ {SIMATIC_IPC_IPC427G, SIMATIC_IPC_DEVICE_227G, SIMATIC_IPC_DEVICE_227G},
};
static int register_platform_devices(u32 station_id)
@@ -82,6 +83,11 @@ static int register_platform_devices(u32 station_id)
ipc_led_platform_device->name);
}
+ if (wdtmode == SIMATIC_IPC_DEVICE_227G) {
+ request_module("w83627hf_wdt");
+ return 0;
+ }
+
if (wdtmode != SIMATIC_IPC_DEVICE_NONE) {
platform_data.devmode = wdtmode;
ipc_wdt_platform_device =
@@ -96,9 +102,6 @@ static int register_platform_devices(u32 station_id)
ipc_wdt_platform_device->name);
}
- if (station_id == SIMATIC_IPC_IPC227G)
- request_module("w83627hf_wdt");
-
if (ledmode == SIMATIC_IPC_DEVICE_NONE &&
wdtmode == SIMATIC_IPC_DEVICE_NONE) {
pr_warn("unsupported IPC detected, station id=%08x\n",
diff --git a/include/linux/platform_data/x86/simatic-ipc.h b/include/linux/platform_data/x86/simatic-ipc.h
index 7a2e79f3be0b..632320ec8f08 100644
--- a/include/linux/platform_data/x86/simatic-ipc.h
+++ b/include/linux/platform_data/x86/simatic-ipc.h
@@ -32,6 +32,7 @@ enum simatic_ipc_station_ids {
SIMATIC_IPC_IPC477E = 0x00000A02,
SIMATIC_IPC_IPC127E = 0x00000D01,
SIMATIC_IPC_IPC227G = 0x00000F01,
+ SIMATIC_IPC_IPC427G = 0x00001001,
};
static inline u32 simatic_ipc_get_station_id(u8 *data, int max_len)
--
2.35.1
This adds support of the Siemens Simatic IPC227G. Its LEDs are connected
to GPIO pins provided by the gpio-f7188x module. We make sure that
gets loaded, if not enabled in the kernel config no LED support will be
available.
Reviewed-by: Hans de Goede <[email protected]>
Signed-off-by: Henning Schild <[email protected]>
---
drivers/leds/simple/simatic-ipc-leds-gpio.c | 42 ++++++++++++++++---
drivers/platform/x86/simatic-ipc.c | 4 +-
.../platform_data/x86/simatic-ipc-base.h | 1 +
include/linux/platform_data/x86/simatic-ipc.h | 1 +
4 files changed, 42 insertions(+), 6 deletions(-)
diff --git a/drivers/leds/simple/simatic-ipc-leds-gpio.c b/drivers/leds/simple/simatic-ipc-leds-gpio.c
index 4c9e663a90ba..0d73dcbeec2d 100644
--- a/drivers/leds/simple/simatic-ipc-leds-gpio.c
+++ b/drivers/leds/simple/simatic-ipc-leds-gpio.c
@@ -13,28 +13,45 @@
#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 = {
+struct gpiod_lookup_table *simatic_ipc_led_gpio_table;
+
+static struct gpiod_lookup_table simatic_ipc_led_gpio_table_127e = {
.dev_id = "leds-gpio",
.table = {
- GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 51, NULL, 0, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 52, NULL, 1, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 53, NULL, 2, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 57, NULL, 3, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 58, NULL, 4, GPIO_ACTIVE_LOW),
GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 60, NULL, 5, GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP_IDX("apollolake-pinctrl.0", 51, NULL, 0, GPIO_ACTIVE_LOW),
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),
+ 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 = "green:" LED_FUNCTION_STATUS "-3" },
{ .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 = {
@@ -46,7 +63,7 @@ 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);
platform_device_unregister(simatic_leds_pdev);
return 0;
@@ -54,10 +71,25 @@ static int simatic_ipc_leds_gpio_remove(struct platform_device *pdev)
static int simatic_ipc_leds_gpio_probe(struct platform_device *pdev)
{
+ const struct simatic_ipc_platform *plat = pdev->dev.platform_data;
struct gpio_desc *gpiod;
int err;
- gpiod_add_lookup_table(&simatic_ipc_led_gpio_table);
+ switch (plat->devmode) {
+ case SIMATIC_IPC_DEVICE_127E:
+ simatic_ipc_led_gpio_table = &simatic_ipc_led_gpio_table_127e;
+ 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;
+ 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,
diff --git a/drivers/platform/x86/simatic-ipc.c b/drivers/platform/x86/simatic-ipc.c
index ca3647b751d5..1825ef21a86d 100644
--- a/drivers/platform/x86/simatic-ipc.c
+++ b/drivers/platform/x86/simatic-ipc.c
@@ -41,6 +41,7 @@ static struct {
{SIMATIC_IPC_IPC127E, SIMATIC_IPC_DEVICE_127E, SIMATIC_IPC_DEVICE_NONE},
{SIMATIC_IPC_IPC227D, SIMATIC_IPC_DEVICE_227D, SIMATIC_IPC_DEVICE_NONE},
{SIMATIC_IPC_IPC227E, SIMATIC_IPC_DEVICE_427E, SIMATIC_IPC_DEVICE_227E},
+ {SIMATIC_IPC_IPC227G, SIMATIC_IPC_DEVICE_227G, SIMATIC_IPC_DEVICE_NONE},
{SIMATIC_IPC_IPC277E, SIMATIC_IPC_DEVICE_NONE, SIMATIC_IPC_DEVICE_227E},
{SIMATIC_IPC_IPC427D, SIMATIC_IPC_DEVICE_427E, SIMATIC_IPC_DEVICE_NONE},
{SIMATIC_IPC_IPC427E, SIMATIC_IPC_DEVICE_427E, SIMATIC_IPC_DEVICE_427E},
@@ -65,7 +66,8 @@ static int register_platform_devices(u32 station_id)
}
if (ledmode != SIMATIC_IPC_DEVICE_NONE) {
- if (ledmode == SIMATIC_IPC_DEVICE_127E)
+ if (ledmode == SIMATIC_IPC_DEVICE_127E ||
+ ledmode == SIMATIC_IPC_DEVICE_227G)
pdevname = KBUILD_MODNAME "_leds_gpio";
platform_data.devmode = ledmode;
ipc_led_platform_device =
diff --git a/include/linux/platform_data/x86/simatic-ipc-base.h b/include/linux/platform_data/x86/simatic-ipc-base.h
index 39fefd48cf4d..57d6a10dfc9e 100644
--- a/include/linux/platform_data/x86/simatic-ipc-base.h
+++ b/include/linux/platform_data/x86/simatic-ipc-base.h
@@ -19,6 +19,7 @@
#define SIMATIC_IPC_DEVICE_427E 2
#define SIMATIC_IPC_DEVICE_127E 3
#define SIMATIC_IPC_DEVICE_227E 4
+#define SIMATIC_IPC_DEVICE_227G 5
struct simatic_ipc_platform {
u8 devmode;
diff --git a/include/linux/platform_data/x86/simatic-ipc.h b/include/linux/platform_data/x86/simatic-ipc.h
index f3b76b39776b..7a2e79f3be0b 100644
--- a/include/linux/platform_data/x86/simatic-ipc.h
+++ b/include/linux/platform_data/x86/simatic-ipc.h
@@ -31,6 +31,7 @@ enum simatic_ipc_station_ids {
SIMATIC_IPC_IPC427E = 0x00000A01,
SIMATIC_IPC_IPC477E = 0x00000A02,
SIMATIC_IPC_IPC127E = 0x00000D01,
+ SIMATIC_IPC_IPC227G = 0x00000F01,
};
static inline u32 simatic_ipc_get_station_id(u8 *data, int max_len)
--
2.35.1
Just load the watchdog module, after having identified that machine.
That watchdog module does not have any autoloading support.
Signed-off-by: Henning Schild <[email protected]>
---
drivers/platform/x86/simatic-ipc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/platform/x86/simatic-ipc.c b/drivers/platform/x86/simatic-ipc.c
index 1825ef21a86d..8dd686d1c9f1 100644
--- a/drivers/platform/x86/simatic-ipc.c
+++ b/drivers/platform/x86/simatic-ipc.c
@@ -96,6 +96,9 @@ static int register_platform_devices(u32 station_id)
ipc_wdt_platform_device->name);
}
+ if (station_id == SIMATIC_IPC_IPC227G)
+ request_module("w83627hf_wdt");
+
if (ledmode == SIMATIC_IPC_DEVICE_NONE &&
wdtmode == SIMATIC_IPC_DEVICE_NONE) {
pr_warn("unsupported IPC detected, station id=%08x\n",
--
2.35.1
On Tue, Aug 23, 2022 at 12:23:39PM +0200, Henning Schild wrote:
> changes since v3:
> - update Kconfig as well
> - drop chip names from comment in driver header
> - add manufacturer check for Fintek again, Nuvoton not possible
> - drop revision printing for Nuvoton
> - restructure defines again
> - add new model 427G
>
> changes since v2: (p1 only)
> - rename macros that change behavior
> - use chip type not device id in the macros
> - reorder defines a bit
>
> changes since v1:
> - remove unused define
> - fix bug where (base + 2) was used as second data bit
> - add macros for "inverted" and "single data bit"
For the non-commented patches:
Reviewed-by: Andy Shevchenko <[email protected]>
> This series first enables a SuperIO GPIO driver to support a chip from
> the vendor Nuvoton, the driver is for Fintek devices but those just are
> very similar. And in watchdog and hwmon subsystems these SuperIO drivers
> also share code and are sometimes called a family.
>
> In another step the individual banks receive a label to tell them apart,
> a step which potentially changes an interface to legacy users that might
> rely on all banks having the same label, or an exact label. But since a
> later patch wants to use GPIO_LOOKUP unique labels are needed and i
> decided to assign them for all supported chips.
>
> In a following patch the Simatic GPIO LED driver is extended to provide
> LEDs in case that SuperIO GPIO driver can be loaded.
>
> Last but not least the watchdog module of that same SuperIO gets loaded
> on a best effort basis.
>
> Note similar patches have appreared before as
> "[PATCH v3 0/1] add device driver for Nuvoton SIO gpio function"
> The main difference here is that i added chip support to an existing
> driver instead of creating a new one. And that i actually propose all
> patches and do not just have the LED patch for Simatic as an example.
> Also note that the patches are based on
> "[PATCH v6 00/12] platform/x86: introduce p2sb_bar() helper"
No need, it's upstream (v6.0-rc1 onwards).
> Henning Schild (5):
> gpio-f7188x: Add GPIO support for Nuvoton NCT6116
> gpio-f7188x: use unique labels for banks/chips
> leds: simatic-ipc-leds-gpio: add new model 227G
> platform/x86: simatic-ipc: enable watchdog for 227G
> platform/x86: simatic-ipc: add new model 427G
>
> drivers/gpio/Kconfig | 3 +-
> drivers/gpio/gpio-f7188x.c | 229 +++++++++++-------
> drivers/leds/simple/simatic-ipc-leds-gpio.c | 42 +++-
> drivers/platform/x86/simatic-ipc.c | 10 +-
> .../platform_data/x86/simatic-ipc-base.h | 1 +
> include/linux/platform_data/x86/simatic-ipc.h | 2 +
> 6 files changed, 194 insertions(+), 93 deletions(-)
>
> --
> 2.35.1
>
--
With Best Regards,
Andy Shevchenko