[PATCH 1/2] pinctrl: meson: separate soc drivers

From: Jerome Brunet
Date: Mon Oct 09 2017 - 06:18:23 EST

When meson pinctrl is enabled, all meson platforms pinctrl drivers are
built in the kernel, with a significant amount of data.

This leads to situation where pinctrl drivers targeting an architecture
are also compiled and shipped on another one (ex: meson8 - ARM - compiled
and shipped on ARM64 builds). This is a waste of memory we can easily
avoid.

This change makes 4 pinctrl drivers (1 per SoC) out the original single
driver, allowing to compile and ship only the ones required.

Signed-off-by: Jerome Brunet <jbrunet@xxxxxxxxxxxx>
---
drivers/pinctrl/Kconfig | 11 +------
drivers/pinctrl/meson/Kconfig | 36 +++++++++++++++++++++
drivers/pinctrl/meson/Makefile | 8 +++--
drivers/pinctrl/meson/pinctrl-meson-gxbb.c | 25 +++++++++++++--
drivers/pinctrl/meson/pinctrl-meson-gxl.c | 25 +++++++++++++--
drivers/pinctrl/meson/pinctrl-meson.c | 51 ++----------------------------
drivers/pinctrl/meson/pinctrl-meson.h | 11 ++-----
drivers/pinctrl/meson/pinctrl-meson8.c | 25 +++++++++++++--
drivers/pinctrl/meson/pinctrl-meson8b.c | 25 +++++++++++++--
9 files changed, 140 insertions(+), 77 deletions(-)
create mode 100644 drivers/pinctrl/meson/Kconfig

diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 1778cf4f81c7..15b5b3b76ba9 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -167,16 +167,6 @@ config PINCTRL_MCP23S08
This provides a GPIO interface supporting inputs and outputs.
The I2C versions of the chips can be used as interrupt-controller.

-config PINCTRL_MESON
- bool
- depends on OF
- select PINMUX
- select PINCONF
- select GENERIC_PINCONF
- select GPIOLIB
- select OF_GPIO
- select REGMAP_MMIO
-
config PINCTRL_OXNAS
bool
depends on OF
@@ -368,6 +358,7 @@ source "drivers/pinctrl/uniphier/Kconfig"
source "drivers/pinctrl/vt8500/Kconfig"
source "drivers/pinctrl/mediatek/Kconfig"
source "drivers/pinctrl/zte/Kconfig"
+source "drivers/pinctrl/meson/Kconfig"

config PINCTRL_XWAY
bool
diff --git a/drivers/pinctrl/meson/Kconfig b/drivers/pinctrl/meson/Kconfig
new file mode 100644
index 000000000000..15655bfd39b6
--- /dev/null
+++ b/drivers/pinctrl/meson/Kconfig
@@ -0,0 +1,36 @@
+menuconfig PINCTRL_MESON
+ bool "Amlogic SoC pinctrl drivers"
+ depends on ARCH_MESON || COMPILE_TEST
+ depends on OF
+ select PINMUX
+ select PINCONF
+ select GENERIC_PINCONF
+ select GPIOLIB
+ select OF_GPIO
+ select REGMAP_MMIO
+ select PINMUX
+ select GENERIC_PINCONF
+
+if PINCTRL_MESON
+
+config PINCTRL_MESON8
+ bool "Meson 8 SoC pinctrl driver"
+ depends on ARM
+ default y
+
+config PINCTRL_MESON8B
+ bool "Meson 8b SoC pinctrl driver"
+ depends on ARM
+ default y
+
+config PINCTRL_MESON_GXBB
+ bool "Meson gxbb SoC pinctrl driver"
+ depends on ARM64
+ default y
+
+config PINCTRL_MESON_GXL
+ bool "Meson gxl SoC pinctrl driver"
+ depends on ARM64
+ default y
+
+endif
diff --git a/drivers/pinctrl/meson/Makefile b/drivers/pinctrl/meson/Makefile
index 27c5b5126008..a6ef5ff4e9b1 100644
--- a/drivers/pinctrl/meson/Makefile
+++ b/drivers/pinctrl/meson/Makefile
@@ -1,3 +1,5 @@
-obj-y += pinctrl-meson8.o pinctrl-meson8b.o
-obj-y += pinctrl-meson-gxbb.o pinctrl-meson-gxl.o
-obj-y += pinctrl-meson.o
+obj-y += pinctrl-meson.o
+obj-$(CONFIG_PINCTRL_MESON8) += pinctrl-meson8.o
+obj-$(CONFIG_PINCTRL_MESON8B) += pinctrl-meson8b.o
+obj-$(CONFIG_PINCTRL_MESON_GXBB) += pinctrl-meson-gxbb.o
+obj-$(CONFIG_PINCTRL_MESON_GXL) += pinctrl-meson-gxl.o
diff --git a/drivers/pinctrl/meson/pinctrl-meson-gxbb.c b/drivers/pinctrl/meson/pinctrl-meson-gxbb.c
index 1881d4a0eca2..a87bdb17414b 100644
--- a/drivers/pinctrl/meson/pinctrl-meson-gxbb.c
+++ b/drivers/pinctrl/meson/pinctrl-meson-gxbb.c
@@ -824,7 +824,7 @@ static struct meson_bank meson_gxbb_aobus_banks[] = {
BANK("AO", GPIOAO_0, GPIOAO_13, 0, 13, 0, 0, 0, 16, 0, 0, 0, 16, 1, 0),
};

-struct meson_pinctrl_data meson_gxbb_periphs_pinctrl_data = {
+static struct meson_pinctrl_data meson_gxbb_periphs_pinctrl_data = {
.name = "periphs-banks",
.pins = meson_gxbb_periphs_pins,
.groups = meson_gxbb_periphs_groups,
@@ -836,7 +836,7 @@ struct meson_pinctrl_data meson_gxbb_periphs_pinctrl_data = {
.num_banks = ARRAY_SIZE(meson_gxbb_periphs_banks),
};

-struct meson_pinctrl_data meson_gxbb_aobus_pinctrl_data = {
+static struct meson_pinctrl_data meson_gxbb_aobus_pinctrl_data = {
.name = "aobus-banks",
.pins = meson_gxbb_aobus_pins,
.groups = meson_gxbb_aobus_groups,
@@ -847,3 +847,24 @@ struct meson_pinctrl_data meson_gxbb_aobus_pinctrl_data = {
.num_funcs = ARRAY_SIZE(meson_gxbb_aobus_functions),
.num_banks = ARRAY_SIZE(meson_gxbb_aobus_banks),
};
+
+static const struct of_device_id meson_gxbb_pinctrl_dt_match[] = {
+ {
+ .compatible = "amlogic,meson-gxbb-periphs-pinctrl",
+ .data = &meson_gxbb_periphs_pinctrl_data,
+ },
+ {
+ .compatible = "amlogic,meson-gxbb-aobus-pinctrl",
+ .data = &meson_gxbb_aobus_pinctrl_data,
+ },
+ { },
+};
+
+static struct platform_driver meson_gxbb_pinctrl_driver = {
+ .probe = meson_pinctrl_probe,
+ .driver = {
+ .name = "meson-gxbb-pinctrl",
+ .of_match_table = meson_gxbb_pinctrl_dt_match,
+ },
+};
+builtin_platform_driver(meson_gxbb_pinctrl_driver);
diff --git a/drivers/pinctrl/meson/pinctrl-meson-gxl.c b/drivers/pinctrl/meson/pinctrl-meson-gxl.c
index 3a14ecae9f31..088ac94f76b0 100644
--- a/drivers/pinctrl/meson/pinctrl-meson-gxl.c
+++ b/drivers/pinctrl/meson/pinctrl-meson-gxl.c
@@ -809,7 +809,7 @@ static struct meson_bank meson_gxl_aobus_banks[] = {
BANK("AO", GPIOAO_0, GPIOAO_9, 0, 9, 0, 0, 0, 16, 0, 0, 0, 16, 1, 0),
};

-struct meson_pinctrl_data meson_gxl_periphs_pinctrl_data = {
+static struct meson_pinctrl_data meson_gxl_periphs_pinctrl_data = {
.name = "periphs-banks",
.pins = meson_gxl_periphs_pins,
.groups = meson_gxl_periphs_groups,
@@ -821,7 +821,7 @@ struct meson_pinctrl_data meson_gxl_periphs_pinctrl_data = {
.num_banks = ARRAY_SIZE(meson_gxl_periphs_banks),
};

-struct meson_pinctrl_data meson_gxl_aobus_pinctrl_data = {
+static struct meson_pinctrl_data meson_gxl_aobus_pinctrl_data = {
.name = "aobus-banks",
.pins = meson_gxl_aobus_pins,
.groups = meson_gxl_aobus_groups,
@@ -832,3 +832,24 @@ struct meson_pinctrl_data meson_gxl_aobus_pinctrl_data = {
.num_funcs = ARRAY_SIZE(meson_gxl_aobus_functions),
.num_banks = ARRAY_SIZE(meson_gxl_aobus_banks),
};
+
+static const struct of_device_id meson_gxl_pinctrl_dt_match[] = {
+ {
+ .compatible = "amlogic,meson-gxl-periphs-pinctrl",
+ .data = &meson_gxl_periphs_pinctrl_data,
+ },
+ {
+ .compatible = "amlogic,meson-gxl-aobus-pinctrl",
+ .data = &meson_gxl_aobus_pinctrl_data,
+ },
+ { },
+};
+
+static struct platform_driver meson_gxl_pinctrl_driver = {
+ .probe = meson_pinctrl_probe,
+ .driver = {
+ .name = "meson-gxl-pinctrl",
+ .of_match_table = meson_gxl_pinctrl_dt_match,
+ },
+};
+builtin_platform_driver(meson_gxl_pinctrl_driver);
diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c
index 71bccb7acbf8..8fc1f1b45435 100644
--- a/drivers/pinctrl/meson/pinctrl-meson.c
+++ b/drivers/pinctrl/meson/pinctrl-meson.c
@@ -481,42 +481,6 @@ static int meson_gpio_get(struct gpio_chip *chip, unsigned gpio)
return !!(val & BIT(bit));
}

-static const struct of_device_id meson_pinctrl_dt_match[] = {
- {
- .compatible = "amlogic,meson8-cbus-pinctrl",
- .data = &meson8_cbus_pinctrl_data,
- },
- {
- .compatible = "amlogic,meson8b-cbus-pinctrl",
- .data = &meson8b_cbus_pinctrl_data,
- },
- {
- .compatible = "amlogic,meson8-aobus-pinctrl",
- .data = &meson8_aobus_pinctrl_data,
- },
- {
- .compatible = "amlogic,meson8b-aobus-pinctrl",
- .data = &meson8b_aobus_pinctrl_data,
- },
- {
- .compatible = "amlogic,meson-gxbb-periphs-pinctrl",
- .data = &meson_gxbb_periphs_pinctrl_data,
- },
- {
- .compatible = "amlogic,meson-gxbb-aobus-pinctrl",
- .data = &meson_gxbb_aobus_pinctrl_data,
- },
- {
- .compatible = "amlogic,meson-gxl-periphs-pinctrl",
- .data = &meson_gxl_periphs_pinctrl_data,
- },
- {
- .compatible = "amlogic,meson-gxl-aobus-pinctrl",
- .data = &meson_gxl_aobus_pinctrl_data,
- },
- { },
-};
-
static int meson_gpiolib_register(struct meson_pinctrl *pc)
{
int ret;
@@ -624,7 +588,7 @@ static int meson_pinctrl_parse_dt(struct meson_pinctrl *pc,
return 0;
}

-static int meson_pinctrl_probe(struct platform_device *pdev)
+int meson_pinctrl_probe(struct platform_device *pdev)
{
const struct of_device_id *match;
struct device *dev = &pdev->dev;
@@ -636,10 +600,10 @@ static int meson_pinctrl_probe(struct platform_device *pdev)
return -ENOMEM;

pc->dev = dev;
- match = of_match_node(meson_pinctrl_dt_match, pdev->dev.of_node);
+ match = of_match_node(dev->driver->of_match_table, dev->of_node);
pc->data = (struct meson_pinctrl_data *) match->data;

- ret = meson_pinctrl_parse_dt(pc, pdev->dev.of_node);
+ ret = meson_pinctrl_parse_dt(pc, dev->of_node);
if (ret)
return ret;

@@ -659,12 +623,3 @@ static int meson_pinctrl_probe(struct platform_device *pdev)

return meson_gpiolib_register(pc);
}
-
-static struct platform_driver meson_pinctrl_driver = {
- .probe = meson_pinctrl_probe,
- .driver = {
- .name = "meson-pinctrl",
- .of_match_table = meson_pinctrl_dt_match,
- },
-};
-builtin_platform_driver(meson_pinctrl_driver);
diff --git a/drivers/pinctrl/meson/pinctrl-meson.h b/drivers/pinctrl/meson/pinctrl-meson.h
index 7ed0a80fd9dc..284157d43612 100644
--- a/drivers/pinctrl/meson/pinctrl-meson.h
+++ b/drivers/pinctrl/meson/pinctrl-meson.h
@@ -13,6 +13,7 @@

#include <linux/gpio.h>
#include <linux/pinctrl/pinctrl.h>
+#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/types.h>

@@ -165,11 +166,5 @@ struct meson_pinctrl {

#define MESON_PIN(x) PINCTRL_PIN(x, #x)

-extern struct meson_pinctrl_data meson8_cbus_pinctrl_data;
-extern struct meson_pinctrl_data meson8_aobus_pinctrl_data;
-extern struct meson_pinctrl_data meson8b_cbus_pinctrl_data;
-extern struct meson_pinctrl_data meson8b_aobus_pinctrl_data;
-extern struct meson_pinctrl_data meson_gxbb_periphs_pinctrl_data;
-extern struct meson_pinctrl_data meson_gxbb_aobus_pinctrl_data;
-extern struct meson_pinctrl_data meson_gxl_periphs_pinctrl_data;
-extern struct meson_pinctrl_data meson_gxl_aobus_pinctrl_data;
+/* Common probe function */
+int meson_pinctrl_probe(struct platform_device *pdev);
diff --git a/drivers/pinctrl/meson/pinctrl-meson8.c b/drivers/pinctrl/meson/pinctrl-meson8.c
index fbf8ecd1c2b6..68b345fc105a 100644
--- a/drivers/pinctrl/meson/pinctrl-meson8.c
+++ b/drivers/pinctrl/meson/pinctrl-meson8.c
@@ -1044,7 +1044,7 @@ static struct meson_bank meson8_aobus_banks[] = {
BANK("AO", GPIOAO_0, GPIO_TEST_N, 0, 13, 0, 0, 0, 16, 0, 0, 0, 16, 1, 0),
};

-struct meson_pinctrl_data meson8_cbus_pinctrl_data = {
+static struct meson_pinctrl_data meson8_cbus_pinctrl_data = {
.name = "cbus-banks",
.pins = meson8_cbus_pins,
.groups = meson8_cbus_groups,
@@ -1056,7 +1056,7 @@ struct meson_pinctrl_data meson8_cbus_pinctrl_data = {
.num_banks = ARRAY_SIZE(meson8_cbus_banks),
};

-struct meson_pinctrl_data meson8_aobus_pinctrl_data = {
+static struct meson_pinctrl_data meson8_aobus_pinctrl_data = {
.name = "ao-bank",
.pins = meson8_aobus_pins,
.groups = meson8_aobus_groups,
@@ -1067,3 +1067,24 @@ struct meson_pinctrl_data meson8_aobus_pinctrl_data = {
.num_funcs = ARRAY_SIZE(meson8_aobus_functions),
.num_banks = ARRAY_SIZE(meson8_aobus_banks),
};
+
+static const struct of_device_id meson8_pinctrl_dt_match[] = {
+ {
+ .compatible = "amlogic,meson8-cbus-pinctrl",
+ .data = &meson8_cbus_pinctrl_data,
+ },
+ {
+ .compatible = "amlogic,meson8-aobus-pinctrl",
+ .data = &meson8_aobus_pinctrl_data,
+ },
+ { },
+};
+
+static struct platform_driver meson8_pinctrl_driver = {
+ .probe = meson_pinctrl_probe,
+ .driver = {
+ .name = "meson8-pinctrl",
+ .of_match_table = meson8_pinctrl_dt_match,
+ },
+};
+builtin_platform_driver(meson8_pinctrl_driver);
diff --git a/drivers/pinctrl/meson/pinctrl-meson8b.c b/drivers/pinctrl/meson/pinctrl-meson8b.c
index 7af296db48c8..4d61df09bc3f 100644
--- a/drivers/pinctrl/meson/pinctrl-meson8b.c
+++ b/drivers/pinctrl/meson/pinctrl-meson8b.c
@@ -904,7 +904,7 @@ static struct meson_bank meson8b_aobus_banks[] = {
BANK("AO", GPIOAO_0, GPIO_TEST_N, 0, 13, 0, 0, 0, 16, 0, 0, 0, 16, 1, 0),
};

-struct meson_pinctrl_data meson8b_cbus_pinctrl_data = {
+static struct meson_pinctrl_data meson8b_cbus_pinctrl_data = {
.name = "cbus-banks",
.pins = meson8b_cbus_pins,
.groups = meson8b_cbus_groups,
@@ -916,7 +916,7 @@ struct meson_pinctrl_data meson8b_cbus_pinctrl_data = {
.num_banks = ARRAY_SIZE(meson8b_cbus_banks),
};

-struct meson_pinctrl_data meson8b_aobus_pinctrl_data = {
+static struct meson_pinctrl_data meson8b_aobus_pinctrl_data = {
.name = "aobus-banks",
.pins = meson8b_aobus_pins,
.groups = meson8b_aobus_groups,
@@ -927,3 +927,24 @@ struct meson_pinctrl_data meson8b_aobus_pinctrl_data = {
.num_funcs = ARRAY_SIZE(meson8b_aobus_functions),
.num_banks = ARRAY_SIZE(meson8b_aobus_banks),
};
+
+static const struct of_device_id meson8b_pinctrl_dt_match[] = {
+ {
+ .compatible = "amlogic,meson8b-cbus-pinctrl",
+ .data = &meson8b_cbus_pinctrl_data,
+ },
+ {
+ .compatible = "amlogic,meson8b-aobus-pinctrl",
+ .data = &meson8b_aobus_pinctrl_data,
+ },
+ { },
+};
+
+static struct platform_driver meson8b_pinctrl_driver = {
+ .probe = meson_pinctrl_probe,
+ .driver = {
+ .name = "meson8b-pinctrl",
+ .of_match_table = meson8b_pinctrl_dt_match,
+ },
+};
+builtin_platform_driver(meson8b_pinctrl_driver);
--
2.13.6