* [PATCH V3 1/3] pinctrl: imx: Use function callbacks for SCU related functions
@ 2020-09-08 7:12 Anson Huang
2020-09-08 7:12 ` [PATCH V3 2/3] pinctrl: imx: Support building SCU pinctrl core driver as module Anson Huang
2020-09-08 7:12 ` [PATCH V3 3/3] pinctrl: imx: Support building i.MX " Anson Huang
0 siblings, 2 replies; 7+ messages in thread
From: Anson Huang @ 2020-09-08 7:12 UTC (permalink / raw)
To: aisheng.dong, festevam, shawnguo, stefan, kernel, linus.walleij,
s.hauer, linux-gpio, linux-kernel, linux-arm-kernel
Cc: Linux-imx
Use function callbacks for SCU related functions in pinctrl-imx.c
in order to support the scenario of PINCTRL_IMX is built in while
PINCTRL_IMX_SCU is built as module, all drivers using SCU pinctrl
driver need to initialize the SCU related function callback, and
no need to check CONFIG_PINCTRL_IMX_SCU anymore, hence stub functions
also can be removed.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
Changes since V2:
- move the removal of #ifdef CONFIG_PINCTRL_IMX_SCU and #else block from
patch #2 to this patch.
---
drivers/pinctrl/freescale/pinctrl-imx.c | 8 ++--
drivers/pinctrl/freescale/pinctrl-imx.h | 57 +++++++++++------------------
drivers/pinctrl/freescale/pinctrl-imx8dxl.c | 3 ++
drivers/pinctrl/freescale/pinctrl-imx8qm.c | 3 ++
drivers/pinctrl/freescale/pinctrl-imx8qxp.c | 3 ++
5 files changed, 35 insertions(+), 39 deletions(-)
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c
index 507e4af..b80c450 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -373,7 +373,7 @@ static int imx_pinconf_get(struct pinctrl_dev *pctldev,
const struct imx_pinctrl_soc_info *info = ipctl->info;
if (info->flags & IMX_USE_SCU)
- return imx_pinconf_get_scu(pctldev, pin_id, config);
+ return info->imx_pinconf_get(pctldev, pin_id, config);
else
return imx_pinconf_get_mmio(pctldev, pin_id, config);
}
@@ -423,7 +423,7 @@ static int imx_pinconf_set(struct pinctrl_dev *pctldev,
const struct imx_pinctrl_soc_info *info = ipctl->info;
if (info->flags & IMX_USE_SCU)
- return imx_pinconf_set_scu(pctldev, pin_id,
+ return info->imx_pinconf_set(pctldev, pin_id,
configs, num_configs);
else
return imx_pinconf_set_mmio(pctldev, pin_id,
@@ -440,7 +440,7 @@ static void imx_pinconf_dbg_show(struct pinctrl_dev *pctldev,
int ret;
if (info->flags & IMX_USE_SCU) {
- ret = imx_pinconf_get_scu(pctldev, pin_id, &config);
+ ret = info->imx_pinconf_get(pctldev, pin_id, &config);
if (ret) {
dev_err(ipctl->dev, "failed to get %s pinconf\n",
pin_get_name(pctldev, pin_id));
@@ -629,7 +629,7 @@ static int imx_pinctrl_parse_groups(struct device_node *np,
for (i = 0; i < grp->num_pins; i++) {
pin = &((struct imx_pin *)(grp->data))[i];
if (info->flags & IMX_USE_SCU)
- imx_pinctrl_parse_pin_scu(ipctl, &grp->pins[i],
+ info->imx_pinctrl_parse_pin(ipctl, &grp->pins[i],
pin, &list);
else
imx_pinctrl_parse_pin_mmio(ipctl, &grp->pins[i],
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.h b/drivers/pinctrl/freescale/pinctrl-imx.h
index 333d32b..fd8c4b6 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.h
+++ b/drivers/pinctrl/freescale/pinctrl-imx.h
@@ -75,6 +75,21 @@ struct imx_cfg_params_decode {
bool invert;
};
+/**
+ * @dev: a pointer back to containing device
+ * @base: the offset to the controller in virtual memory
+ */
+struct imx_pinctrl {
+ struct device *dev;
+ struct pinctrl_dev *pctl;
+ void __iomem *base;
+ void __iomem *input_sel_base;
+ const struct imx_pinctrl_soc_info *info;
+ struct imx_pin_reg *pin_regs;
+ unsigned int group_index;
+ struct mutex mutex;
+};
+
struct imx_pinctrl_soc_info {
const struct pinctrl_pin_desc *pins;
unsigned int npins;
@@ -98,21 +113,13 @@ struct imx_pinctrl_soc_info {
struct pinctrl_gpio_range *range,
unsigned offset,
bool input);
-};
-
-/**
- * @dev: a pointer back to containing device
- * @base: the offset to the controller in virtual memory
- */
-struct imx_pinctrl {
- struct device *dev;
- struct pinctrl_dev *pctl;
- void __iomem *base;
- void __iomem *input_sel_base;
- const struct imx_pinctrl_soc_info *info;
- struct imx_pin_reg *pin_regs;
- unsigned int group_index;
- struct mutex mutex;
+ int (*imx_pinconf_get)(struct pinctrl_dev *pctldev, unsigned int pin_id,
+ unsigned long *config);
+ int (*imx_pinconf_set)(struct pinctrl_dev *pctldev, unsigned int pin_id,
+ unsigned long *configs, unsigned int num_configs);
+ void (*imx_pinctrl_parse_pin)(struct imx_pinctrl *ipctl,
+ unsigned int *pin_id, struct imx_pin *pin,
+ const __be32 **list_p);
};
#define IMX_CFG_PARAMS_DECODE(p, m, o) \
@@ -137,7 +144,6 @@ struct imx_pinctrl {
int imx_pinctrl_probe(struct platform_device *pdev,
const struct imx_pinctrl_soc_info *info);
-#ifdef CONFIG_PINCTRL_IMX_SCU
#define BM_PAD_CTL_GP_ENABLE BIT(30)
#define BM_PAD_CTL_IFMUX_ENABLE BIT(31)
#define BP_PAD_CTL_IFMUX 27
@@ -150,23 +156,4 @@ int imx_pinconf_set_scu(struct pinctrl_dev *pctldev, unsigned pin_id,
void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl,
unsigned int *pin_id, struct imx_pin *pin,
const __be32 **list_p);
-#else
-static inline int imx_pinconf_get_scu(struct pinctrl_dev *pctldev,
- unsigned pin_id, unsigned long *config)
-{
- return -EINVAL;
-}
-static inline int imx_pinconf_set_scu(struct pinctrl_dev *pctldev,
- unsigned pin_id, unsigned long *configs,
- unsigned num_configs)
-{
- return -EINVAL;
-}
-static inline void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl,
- unsigned int *pin_id,
- struct imx_pin *pin,
- const __be32 **list_p)
-{
-}
-#endif
#endif /* __DRIVERS_PINCTRL_IMX_H */
diff --git a/drivers/pinctrl/freescale/pinctrl-imx8dxl.c b/drivers/pinctrl/freescale/pinctrl-imx8dxl.c
index 12b97da..d3020c0 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx8dxl.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx8dxl.c
@@ -159,6 +159,9 @@ static struct imx_pinctrl_soc_info imx8dxl_pinctrl_info = {
.pins = imx8dxl_pinctrl_pads,
.npins = ARRAY_SIZE(imx8dxl_pinctrl_pads),
.flags = IMX_USE_SCU,
+ .imx_pinconf_get = imx_pinconf_get_scu,
+ .imx_pinconf_set = imx_pinconf_set_scu,
+ .imx_pinctrl_parse_pin = imx_pinctrl_parse_pin_scu,
};
static const struct of_device_id imx8dxl_pinctrl_of_match[] = {
diff --git a/drivers/pinctrl/freescale/pinctrl-imx8qm.c b/drivers/pinctrl/freescale/pinctrl-imx8qm.c
index 095acf4..8f46b940 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx8qm.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx8qm.c
@@ -292,6 +292,9 @@ static const struct imx_pinctrl_soc_info imx8qm_pinctrl_info = {
.pins = imx8qm_pinctrl_pads,
.npins = ARRAY_SIZE(imx8qm_pinctrl_pads),
.flags = IMX_USE_SCU,
+ .imx_pinconf_get = imx_pinconf_get_scu,
+ .imx_pinconf_set = imx_pinconf_set_scu,
+ .imx_pinctrl_parse_pin = imx_pinctrl_parse_pin_scu,
};
static const struct of_device_id imx8qm_pinctrl_of_match[] = {
diff --git a/drivers/pinctrl/freescale/pinctrl-imx8qxp.c b/drivers/pinctrl/freescale/pinctrl-imx8qxp.c
index 81ebd4c..6776ad6 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx8qxp.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx8qxp.c
@@ -198,6 +198,9 @@ static struct imx_pinctrl_soc_info imx8qxp_pinctrl_info = {
.pins = imx8qxp_pinctrl_pads,
.npins = ARRAY_SIZE(imx8qxp_pinctrl_pads),
.flags = IMX_USE_SCU,
+ .imx_pinconf_get = imx_pinconf_get_scu,
+ .imx_pinconf_set = imx_pinconf_set_scu,
+ .imx_pinctrl_parse_pin = imx_pinctrl_parse_pin_scu,
};
static const struct of_device_id imx8qxp_pinctrl_of_match[] = {
--
2.7.4
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^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH V3 2/3] pinctrl: imx: Support building SCU pinctrl core driver as module
2020-09-08 7:12 [PATCH V3 1/3] pinctrl: imx: Use function callbacks for SCU related functions Anson Huang
@ 2020-09-08 7:12 ` Anson Huang
2020-09-08 7:12 ` [PATCH V3 3/3] pinctrl: imx: Support building i.MX " Anson Huang
1 sibling, 0 replies; 7+ messages in thread
From: Anson Huang @ 2020-09-08 7:12 UTC (permalink / raw)
To: aisheng.dong, festevam, shawnguo, stefan, kernel, linus.walleij,
s.hauer, linux-gpio, linux-kernel, linux-arm-kernel
Cc: Linux-imx
Change PINCTR_IMX_SCU to tristate, add module author, description
and license to support building SCU pinctrl core driver as module.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
Changes since V2:
- move the removal of #ifdef CONFIG_PINCTRL_IMX_SCU and #else block to
patch #1.
---
drivers/pinctrl/freescale/Kconfig | 2 +-
drivers/pinctrl/freescale/pinctrl-scu.c | 5 +++++
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/freescale/Kconfig b/drivers/pinctrl/freescale/Kconfig
index 08fcf5c..452c499 100644
--- a/drivers/pinctrl/freescale/Kconfig
+++ b/drivers/pinctrl/freescale/Kconfig
@@ -7,7 +7,7 @@ config PINCTRL_IMX
select REGMAP
config PINCTRL_IMX_SCU
- bool
+ tristate "IMX SCU pinctrl core driver"
depends on IMX_SCU
select PINCTRL_IMX
diff --git a/drivers/pinctrl/freescale/pinctrl-scu.c b/drivers/pinctrl/freescale/pinctrl-scu.c
index 9df45d3..59b5f8a 100644
--- a/drivers/pinctrl/freescale/pinctrl-scu.c
+++ b/drivers/pinctrl/freescale/pinctrl-scu.c
@@ -7,6 +7,7 @@
#include <linux/err.h>
#include <linux/firmware/imx/sci.h>
+#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/platform_device.h>
@@ -123,3 +124,7 @@ void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl,
pin_scu->mux_mode, pin_scu->config);
}
EXPORT_SYMBOL_GPL(imx_pinctrl_parse_pin_scu);
+
+MODULE_AUTHOR("Dong Aisheng <aisheng.dong@nxp.com>");
+MODULE_DESCRIPTION("NXP i.MX SCU common pinctrl driver");
+MODULE_LICENSE("GPL v2");
--
2.7.4
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^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH V3 3/3] pinctrl: imx: Support building i.MX pinctrl core driver as module
2020-09-08 7:12 [PATCH V3 1/3] pinctrl: imx: Use function callbacks for SCU related functions Anson Huang
2020-09-08 7:12 ` [PATCH V3 2/3] pinctrl: imx: Support building SCU pinctrl core driver as module Anson Huang
@ 2020-09-08 7:12 ` Anson Huang
2020-09-08 7:31 ` Arnd Bergmann
1 sibling, 1 reply; 7+ messages in thread
From: Anson Huang @ 2020-09-08 7:12 UTC (permalink / raw)
To: aisheng.dong, festevam, shawnguo, stefan, kernel, linus.walleij,
s.hauer, linux-gpio, linux-kernel, linux-arm-kernel
Cc: Linux-imx
Change PINCTRL_IMX to tristate to support loadable module build.
And i.MX common pinctrl driver should depend on CONFIG_OF to make sure
no build error when i.MX common pinctrl driver is enabled for different
architectures without CONFIG_OF.
Also add module author, description and license.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
---
no change.
---
drivers/pinctrl/freescale/Kconfig | 3 ++-
drivers/pinctrl/freescale/pinctrl-imx.c | 5 +++++
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/freescale/Kconfig b/drivers/pinctrl/freescale/Kconfig
index 452c499..0058d3a 100644
--- a/drivers/pinctrl/freescale/Kconfig
+++ b/drivers/pinctrl/freescale/Kconfig
@@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
config PINCTRL_IMX
- bool
+ tristate "IMX pinctrl core driver"
+ depends on OF
select GENERIC_PINCTRL_GROUPS
select GENERIC_PINMUX_FUNCTIONS
select GENERIC_PINCONF
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c
index b80c450..daf28bc 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -11,6 +11,7 @@
#include <linux/init.h>
#include <linux/io.h>
#include <linux/mfd/syscon.h>
+#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_address.h>
@@ -898,3 +899,7 @@ const struct dev_pm_ops imx_pinctrl_pm_ops = {
imx_pinctrl_resume)
};
EXPORT_SYMBOL_GPL(imx_pinctrl_pm_ops);
+
+MODULE_AUTHOR("Dong Aisheng <aisheng.dong@nxp.com>");
+MODULE_DESCRIPTION("NXP i.MX common pinctrl driver");
+MODULE_LICENSE("GPL v2");
--
2.7.4
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^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH V3 3/3] pinctrl: imx: Support building i.MX pinctrl core driver as module
2020-09-08 7:12 ` [PATCH V3 3/3] pinctrl: imx: Support building i.MX " Anson Huang
@ 2020-09-08 7:31 ` Arnd Bergmann
2020-09-08 7:34 ` Anson Huang
0 siblings, 1 reply; 7+ messages in thread
From: Arnd Bergmann @ 2020-09-08 7:31 UTC (permalink / raw)
To: Anson Huang
Cc: Dong Aisheng, Fabio Estevam, Linus Walleij, linux-kernel,
Stefan Agner, open list:GPIO SUBSYSTEM, NXP Linux Team,
Sascha Hauer, Shawn Guo, Sascha Hauer, Linux ARM
On Tue, Sep 8, 2020 at 9:20 AM Anson Huang <Anson.Huang@nxp.com> wrote:
> # SPDX-License-Identifier: GPL-2.0-only
> config PINCTRL_IMX
> - bool
> + tristate "IMX pinctrl core driver"
> + depends on OF
> select GENERIC_PINCTRL_GROUPS
> select GENERIC_PINMUX_FUNCTIONS
> select GENERIC_PINCONF
I don't see why you need to make this option user-visible when it is already
selected by the drivers that need it. Wouldn't it be enough to change
the 'bool' to 'tristate' without adding a prompt?
Arnd
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^ permalink raw reply [flat|nested] 7+ messages in thread
* RE: [PATCH V3 3/3] pinctrl: imx: Support building i.MX pinctrl core driver as module
2020-09-08 7:31 ` Arnd Bergmann
@ 2020-09-08 7:34 ` Anson Huang
2020-09-08 7:45 ` Arnd Bergmann
0 siblings, 1 reply; 7+ messages in thread
From: Anson Huang @ 2020-09-08 7:34 UTC (permalink / raw)
To: Arnd Bergmann
Cc: Aisheng Dong, Fabio Estevam, Linus Walleij, linux-kernel,
Stefan Agner, open list:GPIO SUBSYSTEM, dl-linux-imx,
Sascha Hauer, Shawn Guo, Sascha Hauer, Linux ARM
> Subject: Re: [PATCH V3 3/3] pinctrl: imx: Support building i.MX pinctrl core
> driver as module
>
> On Tue, Sep 8, 2020 at 9:20 AM Anson Huang <Anson.Huang@nxp.com>
> wrote:
>
> > # SPDX-License-Identifier: GPL-2.0-only config PINCTRL_IMX
> > - bool
> > + tristate "IMX pinctrl core driver"
> > + depends on OF
> > select GENERIC_PINCTRL_GROUPS
> > select GENERIC_PINMUX_FUNCTIONS
> > select GENERIC_PINCONF
>
> I don't see why you need to make this option user-visible when it is already
> selected by the drivers that need it. Wouldn't it be enough to change the 'bool'
> to 'tristate' without adding a prompt?
Make sense, so it is same for PINCTRL_IMX_SCU, right?
Anson
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^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH V3 3/3] pinctrl: imx: Support building i.MX pinctrl core driver as module
2020-09-08 7:34 ` Anson Huang
@ 2020-09-08 7:45 ` Arnd Bergmann
2020-09-08 7:53 ` Anson Huang
0 siblings, 1 reply; 7+ messages in thread
From: Arnd Bergmann @ 2020-09-08 7:45 UTC (permalink / raw)
To: Anson Huang
Cc: Aisheng Dong, Fabio Estevam, Linus Walleij, linux-kernel,
Stefan Agner, open list:GPIO SUBSYSTEM, dl-linux-imx,
Sascha Hauer, Shawn Guo, Sascha Hauer, Linux ARM
On Tue, Sep 8, 2020 at 9:34 AM Anson Huang <anson.huang@nxp.com> wrote:
> > Subject: Re: [PATCH V3 3/3] pinctrl: imx: Support building i.MX pinctrl core
> > driver as module
> >
> > On Tue, Sep 8, 2020 at 9:20 AM Anson Huang <Anson.Huang@nxp.com>
> > wrote:
> >
> > > # SPDX-License-Identifier: GPL-2.0-only config PINCTRL_IMX
> > > - bool
> > > + tristate "IMX pinctrl core driver"
> > > + depends on OF
> > > select GENERIC_PINCTRL_GROUPS
> > > select GENERIC_PINMUX_FUNCTIONS
> > > select GENERIC_PINCONF
> >
> > I don't see why you need to make this option user-visible when it is already
> > selected by the drivers that need it. Wouldn't it be enough to change the 'bool'
> > to 'tristate' without adding a prompt?
>
> Make sense, so it is same for PINCTRL_IMX_SCU, right?
Yes, correct.
I wasn't on Cc on the other two patches, so I missed that.
Arnd
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^ permalink raw reply [flat|nested] 7+ messages in thread
* RE: [PATCH V3 3/3] pinctrl: imx: Support building i.MX pinctrl core driver as module
2020-09-08 7:45 ` Arnd Bergmann
@ 2020-09-08 7:53 ` Anson Huang
0 siblings, 0 replies; 7+ messages in thread
From: Anson Huang @ 2020-09-08 7:53 UTC (permalink / raw)
To: Arnd Bergmann
Cc: Aisheng Dong, Fabio Estevam, Linus Walleij, linux-kernel,
Stefan Agner, open list:GPIO SUBSYSTEM, dl-linux-imx,
Sascha Hauer, Shawn Guo, Sascha Hauer, Linux ARM
Hi, Arnd
> Subject: Re: [PATCH V3 3/3] pinctrl: imx: Support building i.MX pinctrl core
> driver as module
>
> On Tue, Sep 8, 2020 at 9:34 AM Anson Huang <anson.huang@nxp.com>
> wrote:
> > > Subject: Re: [PATCH V3 3/3] pinctrl: imx: Support building i.MX
> > > pinctrl core driver as module
> > >
> > > On Tue, Sep 8, 2020 at 9:20 AM Anson Huang <Anson.Huang@nxp.com>
> > > wrote:
> > >
> > > > # SPDX-License-Identifier: GPL-2.0-only config PINCTRL_IMX
> > > > - bool
> > > > + tristate "IMX pinctrl core driver"
> > > > + depends on OF
> > > > select GENERIC_PINCTRL_GROUPS
> > > > select GENERIC_PINMUX_FUNCTIONS
> > > > select GENERIC_PINCONF
> > >
> > > I don't see why you need to make this option user-visible when it is
> > > already selected by the drivers that need it. Wouldn't it be enough to
> change the 'bool'
> > > to 'tristate' without adding a prompt?
> >
> > Make sense, so it is same for PINCTRL_IMX_SCU, right?
>
> Yes, correct.
>
> I wasn't on Cc on the other two patches, so I missed that.
Sorry, I missed to add you to the list as I just use the list from get_maintainer script, will
add you in V4. Since most of the major comments are addressed, I will send V4 soon.
Thanks,
Anson
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^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2020-09-08 7:55 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
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2020-09-08 7:12 [PATCH V3 1/3] pinctrl: imx: Use function callbacks for SCU related functions Anson Huang
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2020-09-08 7:12 ` [PATCH V3 3/3] pinctrl: imx: Support building i.MX " Anson Huang
2020-09-08 7:31 ` Arnd Bergmann
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