[PATCH 0/2] make rockchip pinctrl module able

[PATCH 0/2] make rockchip pinctrl module able

[Jianqun Xu]

Make the rockchip pinctrl driver able to be module by unselect
PINCTRL_ROCKCHIP from ARCH_ROCKCHIP, then modify driver module define.

Jianqun Xu (2):
  arm64: remove select PINCTRL_ROCKCHIP from ARCH_ROCKCHIP
  pinctrl: rockchip: make driver be tristate module

 arch/arm64/Kconfig.platforms       |  2 --
 drivers/pinctrl/Kconfig            |  6 +++++-
 drivers/pinctrl/pinctrl-rockchip.c | 13 +++++++++++++
 3 files changed, 18 insertions(+), 3 deletions(-)

-- 
2.25.1

[PATCH 1/2] arm64: remove select PINCTRL_ROCKCHIP from ARCH_ROCKCHIP

[Jianqun Xu]

Prepare to make pinctrl driver of rockchip to be module able, this patch
remove the select of PINCTRL_ROCKCHIP from ARCH_ROCKCHIP.

Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
---
 arch/arm64/Kconfig.platforms | 2 --
 drivers/pinctrl/Kconfig      | 4 ++++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 6eecdef538bd..0371cc02b448 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -227,9 +227,7 @@ config ARCH_RENESAS
 config ARCH_ROCKCHIP
 	bool "Rockchip Platforms"
 	select ARCH_HAS_RESET_CONTROLLER
-	select GPIOLIB
 	select PINCTRL
-	select PINCTRL_ROCKCHIP
 	select PM
 	select ROCKCHIP_TIMER
 	help
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 03c62e1cb395..bf88aac7bcc6 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -210,11 +210,15 @@ config PINCTRL_OXNAS
 config PINCTRL_ROCKCHIP
 	bool
 	depends on OF
+	select GPIOLIB
 	select PINMUX
 	select GENERIC_PINCONF
 	select GENERIC_IRQ_CHIP
 	select MFD_SYSCON
 	select OF_GPIO
+	default ARCH_ROCKCHIP
+	help
+          This support pinctrl and gpio driver for Rockchip SoCs.
 
 config PINCTRL_SINGLE
 	tristate "One-register-per-pin type device tree based pinctrl driver"
-- 
2.25.1

Re: [PATCH 1/2] arm64: remove select PINCTRL_ROCKCHIP from ARCH_ROCKCHIP

[jay.xu]

Hi Heiko

I have seen [0] patch similar to this patch, but is there need to remove select GPIOLIB and PINCTRL_ROCKCHIP from ARCH_ROCKCHIP ?

[0]:https://patchwork.kernel.org/project/linux-rockchip/patch/20210316134059.2377081-1-geert+renesas@glider.be/

Best regards
--------------
jay.xu@rock-chips.com
>Prepare to make pinctrl driver of rockchip to be module able, this patch
>remove the select of PINCTRL_ROCKCHIP from ARCH_ROCKCHIP.
>
>Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
>---
> arch/arm64/Kconfig.platforms | 2 --
> drivers/pinctrl/Kconfig      | 4 ++++
> 2 files changed, 4 insertions(+), 2 deletions(-)
>
>diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
>index 6eecdef538bd..0371cc02b448 100644
>--- a/arch/arm64/Kconfig.platforms
>+++ b/arch/arm64/Kconfig.platforms
>@@ -227,9 +227,7 @@ config ARCH_RENESAS
> config ARCH_ROCKCHIP
> bool "Rockchip Platforms"
> select ARCH_HAS_RESET_CONTROLLER
>-	select GPIOLIB
> select PINCTRL
>-	select PINCTRL_ROCKCHIP
> select PM
> select ROCKCHIP_TIMER
> help
>diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
>index 03c62e1cb395..bf88aac7bcc6 100644
>--- a/drivers/pinctrl/Kconfig
>+++ b/drivers/pinctrl/Kconfig
>@@ -210,11 +210,15 @@ config PINCTRL_OXNAS
> config PINCTRL_ROCKCHIP
> bool
> depends on OF
>+	select GPIOLIB
> select PINMUX
> select GENERIC_PINCONF
> select GENERIC_IRQ_CHIP
> select MFD_SYSCON
> select OF_GPIO
>+	default ARCH_ROCKCHIP
>+	help
>+          This support pinctrl and gpio driver for Rockchip SoCs.
>
> config PINCTRL_SINGLE
> tristate "One-register-per-pin type device tree based pinctrl driver"
>--
>2.25.1
>
>
>
>

[PATCH 2/2] pinctrl: rockchip: make driver be tristate module

[Jianqun Xu]

Make pinctrl-rockchip driver to be tristate module, support to build as
a module, this is useful for GKI.

Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
---
 drivers/pinctrl/Kconfig            |  2 +-
 drivers/pinctrl/pinctrl-rockchip.c | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index bf88aac7bcc6..04d1bd8b8d83 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -208,7 +208,7 @@ config PINCTRL_OXNAS
 	select MFD_SYSCON
 
 config PINCTRL_ROCKCHIP
-	bool
+	tristate "Rockchip gpio and pinctrl driver"
 	depends on OF
 	select GPIOLIB
 	select PINMUX
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index aa1a1c850d05..70dc03af5699 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -16,10 +16,12 @@
  */
 
 #include <linux/init.h>
+#include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/bitops.h>
 #include <linux/gpio/driver.h>
+#include <linux/of_device.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 #include <linux/pinctrl/machine.h>
@@ -4256,3 +4258,14 @@ static int __init rockchip_pinctrl_drv_register(void)
 	return platform_driver_register(&rockchip_pinctrl_driver);
 }
 postcore_initcall(rockchip_pinctrl_drv_register);
+
+static void __exit rockchip_pinctrl_drv_unregister(void)
+{
+	platform_driver_unregister(&rockchip_pinctrl_driver);
+}
+module_exit(rockchip_pinctrl_drv_unregister);
+
+MODULE_DESCRIPTION("ROCKCHIP Pin Controller Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pinctrl-rockchip");
+MODULE_DEVICE_TABLE(of, rockchip_pinctrl_dt_match);
-- 
2.25.1

Re: [PATCH 0/2] make rockchip pinctrl module able

[Linus Walleij]

On Fri, Mar 5, 2021 at 1:39 AM Jianqun Xu <jay.xu@rock-chips.com> wrote:

> Make the rockchip pinctrl driver able to be module by unselect
> PINCTRL_ROCKCHIP from ARCH_ROCKCHIP, then modify driver module define.

This patch set fails like this:

ERROR: modpost: "irq_gc_set_wake"
[drivers/pinctrl/pinctrl-rockchip.ko] undefined!
make[3]: *** [../scripts/Makefile.modpost:132: Module.symvers] Error 1
make[3]: *** Deleting file 'Module.symvers'
make[2]: *** [/home/linus/linux-pinctrl/Makefile:1440: modules] Error 2

Probably this function needs to get exported. (Send a separate
patch for that.)

Yours,
Linus Walleij

Yours,
Linus Walleij

Re: [PATCH 0/2] make rockchip pinctrl module able

[Linus Walleij]

On Fri, Mar 5, 2021 at 1:39 AM Jianqun Xu <jay.xu@rock-chips.com> wrote:

> Make the rockchip pinctrl driver able to be module by unselect
> PINCTRL_ROCKCHIP from ARCH_ROCKCHIP, then modify driver module define.

Applied this again with the irqchip patch under, let's see how this
works!

Yours,
Linus Walleij

Re: Re: [PATCH 0/2] make rockchip pinctrl module able

[jay.xu]

Thanks very much
--------------
jay.xu@rock-chips.com
>On Fri, Mar 5, 2021 at 1:39 AM Jianqun Xu <jay.xu@rock-chips.com> wrote:
>
>> Make the rockchip pinctrl driver able to be module by unselect
>> PINCTRL_ROCKCHIP from ARCH_ROCKCHIP, then modify driver module define.
>
>Applied this again with the irqchip patch under, let's see how this
>works!
>
>Yours,
>Linus Walleij
>
>
>