Export the pin_get_name()/pinconf_generic_parse_dt_config() symbols needed
by the Spreadtrum pinctrl driver when building it as a module.
Signed-off-by: Baolin Wang <[email protected]>
---
drivers/pinctrl/core.c | 1 +
drivers/pinctrl/pinconf-generic.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 446d84f..893b1ac 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -176,6 +176,7 @@ const char *pin_get_name(struct pinctrl_dev *pctldev, const unsigned pin)
return desc->name;
}
+EXPORT_SYMBOL_GPL(pin_get_name);
/* Deletes a range of pin descriptors */
static void pinctrl_free_pindescs(struct pinctrl_dev *pctldev,
diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c
index 9eb8630..dfef471 100644
--- a/drivers/pinctrl/pinconf-generic.c
+++ b/drivers/pinctrl/pinconf-generic.c
@@ -286,6 +286,7 @@ int pinconf_generic_parse_dt_config(struct device_node *np,
kfree(cfg);
return ret;
}
+EXPORT_SYMBOL_GPL(pinconf_generic_parse_dt_config);
int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
struct device_node *np, struct pinctrl_map **map,
--
1.9.1
Change the config to 'tristate' and export some symbols needed by modules
to allow the Spreadtrum pinctrl driver building into a module.
Signed-off-by: Baolin Wang <[email protected]>
---
drivers/pinctrl/sprd/Kconfig | 6 +++---
drivers/pinctrl/sprd/pinctrl-sprd.c | 3 +++
2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/pinctrl/sprd/Kconfig b/drivers/pinctrl/sprd/Kconfig
index b6c5479..c9e7f0b 100644
--- a/drivers/pinctrl/sprd/Kconfig
+++ b/drivers/pinctrl/sprd/Kconfig
@@ -4,7 +4,7 @@
#
config PINCTRL_SPRD
- bool "Spreadtrum pinctrl driver"
+ tristate "Spreadtrum pinctrl driver"
depends on OF
depends on ARCH_SPRD || COMPILE_TEST
select PINMUX
@@ -15,7 +15,7 @@ config PINCTRL_SPRD
Say Y here to enable Spreadtrum pinctrl driver
config PINCTRL_SPRD_SC9860
- bool "Spreadtrum SC9860 pinctrl driver"
- depends on PINCTRL_SPRD
+ tristate "Spreadtrum SC9860 pinctrl driver"
+ select PINCTRL_SPRD
help
Say Y here to enable Spreadtrum SC9860 pinctrl driver
diff --git a/drivers/pinctrl/sprd/pinctrl-sprd.c b/drivers/pinctrl/sprd/pinctrl-sprd.c
index 157712ab..ea04bac 100644
--- a/drivers/pinctrl/sprd/pinctrl-sprd.c
+++ b/drivers/pinctrl/sprd/pinctrl-sprd.c
@@ -1090,6 +1090,7 @@ int sprd_pinctrl_core_probe(struct platform_device *pdev,
return 0;
}
+EXPORT_SYMBOL_GPL(sprd_pinctrl_core_probe);
int sprd_pinctrl_remove(struct platform_device *pdev)
{
@@ -1098,6 +1099,7 @@ int sprd_pinctrl_remove(struct platform_device *pdev)
pinctrl_unregister(sprd_pctl->pctl);
return 0;
}
+EXPORT_SYMBOL_GPL(sprd_pinctrl_remove);
void sprd_pinctrl_shutdown(struct platform_device *pdev)
{
@@ -1112,6 +1114,7 @@ void sprd_pinctrl_shutdown(struct platform_device *pdev)
return;
pinctrl_select_state(pinctl, state);
}
+EXPORT_SYMBOL_GPL(sprd_pinctrl_shutdown);
MODULE_DESCRIPTION("SPREADTRUM Pin Controller Driver");
MODULE_AUTHOR("Baolin Wang <[email protected]>");
--
1.9.1
On Thu, Feb 27, 2020 at 5:13 AM Baolin Wang <[email protected]> wrote:
> Export the pin_get_name()/pinconf_generic_parse_dt_config() symbols needed
> by the Spreadtrum pinctrl driver when building it as a module.
>
> Signed-off-by: Baolin Wang <[email protected]>
Patch applied.
Yours,
Linus Walleij
On Thu, Feb 27, 2020 at 5:14 AM Baolin Wang <[email protected]> wrote:
> Change the config to 'tristate' and export some symbols needed by modules
> to allow the Spreadtrum pinctrl driver building into a module.
>
> Signed-off-by: Baolin Wang <[email protected]>
Patch applied.
Yours,
Linus Walleij
Hi Baolin,
I love your patch! Yet something to improve:
[auto build test ERROR on pinctrl/devel]
[also build test ERROR on v5.6-rc3 next-20200228]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/Baolin-Wang/pinctrl-Export-some-needed-symbols-at-module-load-time/20200227-121948
base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel
config: i386-randconfig-d003-20200229 (attached as .config)
compiler: gcc-7 (Debian 7.5.0-5) 7.5.0
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <[email protected]>
All errors (new ones prefixed by >>):
drivers/pinctrl/sprd/pinctrl-sprd.c: In function 'sprd_dt_node_to_map':
>> drivers/pinctrl/sprd/pinctrl-sprd.c:282:8: error: implicit declaration of function 'pinconf_generic_parse_dt_config'; did you mean 'pinconf_generic_dump_config'? [-Werror=implicit-function-declaration]
ret = pinconf_generic_parse_dt_config(np, pctldev, &configs,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pinconf_generic_dump_config
cc1: some warnings being treated as errors
vim +282 drivers/pinctrl/sprd/pinctrl-sprd.c
41d32cfce1ae61 Baolin Wang 2017-08-17 241
41d32cfce1ae61 Baolin Wang 2017-08-17 242 static int sprd_dt_node_to_map(struct pinctrl_dev *pctldev,
41d32cfce1ae61 Baolin Wang 2017-08-17 243 struct device_node *np,
41d32cfce1ae61 Baolin Wang 2017-08-17 244 struct pinctrl_map **map,
41d32cfce1ae61 Baolin Wang 2017-08-17 245 unsigned int *num_maps)
41d32cfce1ae61 Baolin Wang 2017-08-17 246 {
41d32cfce1ae61 Baolin Wang 2017-08-17 247 struct sprd_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
41d32cfce1ae61 Baolin Wang 2017-08-17 248 const struct sprd_pin_group *grp;
41d32cfce1ae61 Baolin Wang 2017-08-17 249 unsigned long *configs = NULL;
41d32cfce1ae61 Baolin Wang 2017-08-17 250 unsigned int num_configs = 0;
41d32cfce1ae61 Baolin Wang 2017-08-17 251 unsigned int reserved_maps = 0;
41d32cfce1ae61 Baolin Wang 2017-08-17 252 unsigned int reserve = 0;
41d32cfce1ae61 Baolin Wang 2017-08-17 253 const char *function;
41d32cfce1ae61 Baolin Wang 2017-08-17 254 enum pinctrl_map_type type;
41d32cfce1ae61 Baolin Wang 2017-08-17 255 int ret;
41d32cfce1ae61 Baolin Wang 2017-08-17 256
41d32cfce1ae61 Baolin Wang 2017-08-17 257 grp = sprd_pinctrl_find_group_by_name(pctl, np->name);
41d32cfce1ae61 Baolin Wang 2017-08-17 258 if (!grp) {
41d32cfce1ae61 Baolin Wang 2017-08-17 259 dev_err(pctl->dev, "unable to find group for node %s\n",
41d32cfce1ae61 Baolin Wang 2017-08-17 260 of_node_full_name(np));
41d32cfce1ae61 Baolin Wang 2017-08-17 261 return -EINVAL;
41d32cfce1ae61 Baolin Wang 2017-08-17 262 }
41d32cfce1ae61 Baolin Wang 2017-08-17 263
41d32cfce1ae61 Baolin Wang 2017-08-17 264 ret = of_property_count_strings(np, "pins");
41d32cfce1ae61 Baolin Wang 2017-08-17 265 if (ret < 0)
41d32cfce1ae61 Baolin Wang 2017-08-17 266 return ret;
41d32cfce1ae61 Baolin Wang 2017-08-17 267
41d32cfce1ae61 Baolin Wang 2017-08-17 268 if (ret == 1)
41d32cfce1ae61 Baolin Wang 2017-08-17 269 type = PIN_MAP_TYPE_CONFIGS_PIN;
41d32cfce1ae61 Baolin Wang 2017-08-17 270 else
41d32cfce1ae61 Baolin Wang 2017-08-17 271 type = PIN_MAP_TYPE_CONFIGS_GROUP;
41d32cfce1ae61 Baolin Wang 2017-08-17 272
41d32cfce1ae61 Baolin Wang 2017-08-17 273 ret = of_property_read_string(np, "function", &function);
41d32cfce1ae61 Baolin Wang 2017-08-17 274 if (ret < 0) {
41d32cfce1ae61 Baolin Wang 2017-08-17 275 if (ret != -EINVAL)
41d32cfce1ae61 Baolin Wang 2017-08-17 276 dev_err(pctl->dev,
41d32cfce1ae61 Baolin Wang 2017-08-17 277 "%s: could not parse property function\n",
41d32cfce1ae61 Baolin Wang 2017-08-17 278 of_node_full_name(np));
41d32cfce1ae61 Baolin Wang 2017-08-17 279 function = NULL;
41d32cfce1ae61 Baolin Wang 2017-08-17 280 }
41d32cfce1ae61 Baolin Wang 2017-08-17 281
41d32cfce1ae61 Baolin Wang 2017-08-17 @282 ret = pinconf_generic_parse_dt_config(np, pctldev, &configs,
41d32cfce1ae61 Baolin Wang 2017-08-17 283 &num_configs);
41d32cfce1ae61 Baolin Wang 2017-08-17 284 if (ret < 0) {
41d32cfce1ae61 Baolin Wang 2017-08-17 285 dev_err(pctl->dev, "%s: could not parse node property\n",
41d32cfce1ae61 Baolin Wang 2017-08-17 286 of_node_full_name(np));
41d32cfce1ae61 Baolin Wang 2017-08-17 287 return ret;
41d32cfce1ae61 Baolin Wang 2017-08-17 288 }
41d32cfce1ae61 Baolin Wang 2017-08-17 289
41d32cfce1ae61 Baolin Wang 2017-08-17 290 *map = NULL;
41d32cfce1ae61 Baolin Wang 2017-08-17 291 *num_maps = 0;
41d32cfce1ae61 Baolin Wang 2017-08-17 292
41d32cfce1ae61 Baolin Wang 2017-08-17 293 if (function != NULL)
41d32cfce1ae61 Baolin Wang 2017-08-17 294 reserve++;
41d32cfce1ae61 Baolin Wang 2017-08-17 295 if (num_configs)
41d32cfce1ae61 Baolin Wang 2017-08-17 296 reserve++;
41d32cfce1ae61 Baolin Wang 2017-08-17 297
41d32cfce1ae61 Baolin Wang 2017-08-17 298 ret = pinctrl_utils_reserve_map(pctldev, map, &reserved_maps,
41d32cfce1ae61 Baolin Wang 2017-08-17 299 num_maps, reserve);
41d32cfce1ae61 Baolin Wang 2017-08-17 300 if (ret < 0)
41d32cfce1ae61 Baolin Wang 2017-08-17 301 goto out;
41d32cfce1ae61 Baolin Wang 2017-08-17 302
41d32cfce1ae61 Baolin Wang 2017-08-17 303 if (function) {
41d32cfce1ae61 Baolin Wang 2017-08-17 304 ret = pinctrl_utils_add_map_mux(pctldev, map,
41d32cfce1ae61 Baolin Wang 2017-08-17 305 &reserved_maps, num_maps,
41d32cfce1ae61 Baolin Wang 2017-08-17 306 grp->name, function);
41d32cfce1ae61 Baolin Wang 2017-08-17 307 if (ret < 0)
41d32cfce1ae61 Baolin Wang 2017-08-17 308 goto out;
41d32cfce1ae61 Baolin Wang 2017-08-17 309 }
41d32cfce1ae61 Baolin Wang 2017-08-17 310
41d32cfce1ae61 Baolin Wang 2017-08-17 311 if (num_configs) {
41d32cfce1ae61 Baolin Wang 2017-08-17 312 const char *group_or_pin;
41d32cfce1ae61 Baolin Wang 2017-08-17 313 unsigned int pin_id;
41d32cfce1ae61 Baolin Wang 2017-08-17 314
41d32cfce1ae61 Baolin Wang 2017-08-17 315 if (type == PIN_MAP_TYPE_CONFIGS_PIN) {
41d32cfce1ae61 Baolin Wang 2017-08-17 316 pin_id = grp->pins[0];
41d32cfce1ae61 Baolin Wang 2017-08-17 317 group_or_pin = pin_get_name(pctldev, pin_id);
41d32cfce1ae61 Baolin Wang 2017-08-17 318 } else {
41d32cfce1ae61 Baolin Wang 2017-08-17 319 group_or_pin = grp->name;
41d32cfce1ae61 Baolin Wang 2017-08-17 320 }
41d32cfce1ae61 Baolin Wang 2017-08-17 321
41d32cfce1ae61 Baolin Wang 2017-08-17 322 ret = pinctrl_utils_add_map_configs(pctldev, map,
41d32cfce1ae61 Baolin Wang 2017-08-17 323 &reserved_maps, num_maps,
41d32cfce1ae61 Baolin Wang 2017-08-17 324 group_or_pin, configs,
41d32cfce1ae61 Baolin Wang 2017-08-17 325 num_configs, type);
41d32cfce1ae61 Baolin Wang 2017-08-17 326 }
41d32cfce1ae61 Baolin Wang 2017-08-17 327
41d32cfce1ae61 Baolin Wang 2017-08-17 328 out:
41d32cfce1ae61 Baolin Wang 2017-08-17 329 kfree(configs);
41d32cfce1ae61 Baolin Wang 2017-08-17 330 return ret;
41d32cfce1ae61 Baolin Wang 2017-08-17 331 }
41d32cfce1ae61 Baolin Wang 2017-08-17 332
:::::: The code at line 282 was first introduced by commit
:::::: 41d32cfce1ae616413761d07986e1fb4b907e808 pinctrl: sprd: Add Spreadtrum pin control driver
:::::: TO: Baolin Wang <[email protected]>
:::::: CC: Linus Walleij <[email protected]>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]
Hi
On Sat, Feb 29, 2020 at 8:41 AM kbuild test robot <[email protected]> wrote:
>
> Hi Baolin,
>
> I love your patch! Yet something to improve:
>
> [auto build test ERROR on pinctrl/devel]
> [also build test ERROR on v5.6-rc3 next-20200228]
> [if your patch is applied to the wrong git tree, please drop us a note to help
> improve the system. BTW, we also suggest to use '--base' option to specify the
> base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
>
> url: https://github.com/0day-ci/linux/commits/Baolin-Wang/pinctrl-Export-some-needed-symbols-at-module-load-time/20200227-121948
> base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel
> config: i386-randconfig-d003-20200229 (attached as .config)
> compiler: gcc-7 (Debian 7.5.0-5) 7.5.0
> reproduce:
> # save the attached .config to linux build tree
> make ARCH=i386
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <[email protected]>
>
> All errors (new ones prefixed by >>):
>
> drivers/pinctrl/sprd/pinctrl-sprd.c: In function 'sprd_dt_node_to_map':
> >> drivers/pinctrl/sprd/pinctrl-sprd.c:282:8: error: implicit declaration of function 'pinconf_generic_parse_dt_config'; did you mean 'pinconf_generic_dump_config'? [-Werror=implicit-function-declaration]
> ret = pinconf_generic_parse_dt_config(np, pctldev, &configs,
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> pinconf_generic_dump_config
> cc1: some warnings being treated as errors
I followed your attached configuration, but I can not reproduce your
building error. Did I miss anything else? Thanks.
CONFIG_PINCTRL=y
CONFIG_PINMUX=y
CONFIG_GENERIC_PINMUX_FUNCTIONS=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
CONFIG_PINCTRL_SPRD=y
CONFIG_PINCTRL_SPRD_SC9860=y
On 3/2/20 10:33 AM, Baolin Wang wrote:
> Hi
>
> On Sat, Feb 29, 2020 at 8:41 AM kbuild test robot <[email protected]> wrote:
>> Hi Baolin,
>>
>> I love your patch! Yet something to improve:
>>
>> [auto build test ERROR on pinctrl/devel]
>> [also build test ERROR on v5.6-rc3 next-20200228]
>> [if your patch is applied to the wrong git tree, please drop us a note to help
>> improve the system. BTW, we also suggest to use '--base' option to specify the
>> base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
>>
>> url: https://github.com/0day-ci/linux/commits/Baolin-Wang/pinctrl-Export-some-needed-symbols-at-module-load-time/20200227-121948
>> base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel
>> config: i386-randconfig-d003-20200229 (attached as .config)
>> compiler: gcc-7 (Debian 7.5.0-5) 7.5.0
>> reproduce:
>> # save the attached .config to linux build tree
>> make ARCH=i386
>>
>> If you fix the issue, kindly add following tag
>> Reported-by: kbuild test robot <[email protected]>
>>
>> All errors (new ones prefixed by >>):
>>
>> drivers/pinctrl/sprd/pinctrl-sprd.c: In function 'sprd_dt_node_to_map':
>>>> drivers/pinctrl/sprd/pinctrl-sprd.c:282:8: error: implicit declaration of function 'pinconf_generic_parse_dt_config'; did you mean 'pinconf_generic_dump_config'? [-Werror=implicit-function-declaration]
>> ret = pinconf_generic_parse_dt_config(np, pctldev, &configs,
>> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> pinconf_generic_dump_config
>> cc1: some warnings being treated as errors
> I followed your attached configuration, but I can not reproduce your
> building error. Did I miss anything else? Thanks.
>
> CONFIG_PINCTRL=y
> CONFIG_PINMUX=y
> CONFIG_GENERIC_PINMUX_FUNCTIONS=y
> CONFIG_PINCONF=y
> CONFIG_GENERIC_PINCONF=y
> CONFIG_PINCTRL_SPRD=y
> CONFIG_PINCTRL_SPRD_SC9860=y
>
Hi Baolin,
We can reproduce this error with attached config and our branch
"https://github.com/0day-ci/linux/commits/Baolin-Wang/pinctrl-Export-some-needed-symbols-at-module-load-time/20200227-121948",
could you try again?
Best Regards,
Rong Chen
Hi Rong,
On Tue, Mar 3, 2020 at 2:43 PM Rong Chen <[email protected]> wrote:
>
>
>
> On 3/2/20 10:33 AM, Baolin Wang wrote:
> > Hi
> >
> > On Sat, Feb 29, 2020 at 8:41 AM kbuild test robot <[email protected]> wrote:
> >> Hi Baolin,
> >>
> >> I love your patch! Yet something to improve:
> >>
> >> [auto build test ERROR on pinctrl/devel]
> >> [also build test ERROR on v5.6-rc3 next-20200228]
> >> [if your patch is applied to the wrong git tree, please drop us a note to help
> >> improve the system. BTW, we also suggest to use '--base' option to specify the
> >> base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
> >>
> >> url: https://github.com/0day-ci/linux/commits/Baolin-Wang/pinctrl-Export-some-needed-symbols-at-module-load-time/20200227-121948
> >> base: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel
> >> config: i386-randconfig-d003-20200229 (attached as .config)
> >> compiler: gcc-7 (Debian 7.5.0-5) 7.5.0
> >> reproduce:
> >> # save the attached .config to linux build tree
> >> make ARCH=i386
> >>
> >> If you fix the issue, kindly add following tag
> >> Reported-by: kbuild test robot <[email protected]>
> >>
> >> All errors (new ones prefixed by >>):
> >>
> >> drivers/pinctrl/sprd/pinctrl-sprd.c: In function 'sprd_dt_node_to_map':
> >>>> drivers/pinctrl/sprd/pinctrl-sprd.c:282:8: error: implicit declaration of function 'pinconf_generic_parse_dt_config'; did you mean 'pinconf_generic_dump_config'? [-Werror=implicit-function-declaration]
> >> ret = pinconf_generic_parse_dt_config(np, pctldev, &configs,
> >> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >> pinconf_generic_dump_config
> >> cc1: some warnings being treated as errors
> > I followed your attached configuration, but I can not reproduce your
> > building error. Did I miss anything else? Thanks.
> >
> > CONFIG_PINCTRL=y
> > CONFIG_PINMUX=y
> > CONFIG_GENERIC_PINMUX_FUNCTIONS=y
> > CONFIG_PINCONF=y
> > CONFIG_GENERIC_PINCONF=y
> > CONFIG_PINCTRL_SPRD=y
> > CONFIG_PINCTRL_SPRD_SC9860=y
> >
>
> Hi Baolin,
>
> We can reproduce this error with attached config and our branch
> "https://github.com/0day-ci/linux/commits/Baolin-Wang/pinctrl-Export-some-needed-symbols-at-module-load-time/20200227-121948",
> could you try again?
I can reproduce the warning on X86 platform now, and I've already sent
out a patch to fix it. Thanks
https://lkml.org/lkml/2020/3/2/1551
--
Baolin Wang