| Message ID | 20180327135801.9556-1-parkch98@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | [PATCHv2] pinctrl: samsung: add pin_dbg_show callback for debugfs | expand |
On Tue, Mar 27, 2018 at 3:58 PM, Chanho Park <parkch98@gmail.com> wrote: > This patch adds a samsung_pin_dbg_show function to implement the > pin_dbg_show callback function which can be used to show pin > confuration values. Basically, it can show pin setting values by > accessing the "pins" node like below: > > $ cat pins > pin 0 (gpy7-0) CON(0x0) DAT(0x1) PUD(0x1) DRV(0x0) CON_PDN(0x0) PUD_PDN(0x0) > > Signed-off-by: Chanho Park <parkch98@gmail.com> > --- > Changes from v1: > - use samsung_pinconf_get instead of samsung_pinconf_rw > - use "static const char * const" type declaration of reg_names > - skip condition change > > drivers/pinctrl/samsung/pinctrl-samsung.c | 29 +++++++++++++++++++++++++++++ > 1 file changed, 29 insertions(+) Looks fine, thanks: Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Linus, I do not have anything in my pinctrl queue for you so maybe you can take it directly? Otherwise, I will apply it after upcoming merge window. Best regards, Krzysztof -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 03/27/2018 03:58 PM, Chanho Park wrote: > This patch adds a samsung_pin_dbg_show function to implement the > pin_dbg_show callback function which can be used to show pin > confuration values. Basically, it can show pin setting values by > accessing the "pins" node like below: > > $ cat pins > pin 0 (gpy7-0) CON(0x0) DAT(0x1) PUD(0x1) DRV(0x0) CON_PDN(0x0) PUD_PDN(0x0) > > Signed-off-by: Chanho Park <parkch98@gmail.com> Thank you for the patch. On exynos5433-tm2 Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com> -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tue, Mar 27, 2018 at 3:58 PM, Chanho Park <parkch98@gmail.com> wrote: > This patch adds a samsung_pin_dbg_show function to implement the > pin_dbg_show callback function which can be used to show pin > confuration values. Basically, it can show pin setting values by > accessing the "pins" node like below: > > $ cat pins > pin 0 (gpy7-0) CON(0x0) DAT(0x1) PUD(0x1) DRV(0x0) CON_PDN(0x0) PUD_PDN(0x0) > > Signed-off-by: Chanho Park <parkch98@gmail.com> > --- > Changes from v1: > - use samsung_pinconf_get instead of samsung_pinconf_rw > - use "static const char * const" type declaration of reg_names > - skip condition change Patch applied directly to my tree for v4.18 with the ACKs! Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.c b/drivers/pinctrl/samsung/pinctrl-samsung.c index 336e88d7bdb9..618945a0fd38 100644 --- a/drivers/pinctrl/samsung/pinctrl-samsung.c +++ b/drivers/pinctrl/samsung/pinctrl-samsung.c @@ -279,6 +279,32 @@ static int samsung_dt_node_to_map(struct pinctrl_dev *pctldev, return 0; } +#ifdef CONFIG_DEBUG_FS +/* Forward declaration which can be used by samsung_pin_dbg_show */ +static int samsung_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin, + unsigned long *config); +static const char * const reg_names[] = {"CON", "DAT", "PUD", "DRV", "CON_PDN", + "PUD_PDN"}; + +static void samsung_pin_dbg_show(struct pinctrl_dev *pctldev, + struct seq_file *s, unsigned int pin) +{ + enum pincfg_type cfg_type; + unsigned long config; + int ret; + + for (cfg_type = 0; cfg_type < PINCFG_TYPE_NUM; cfg_type++) { + config = PINCFG_PACK(cfg_type, 0); + ret = samsung_pinconf_get(pctldev, pin, &config); + if (ret < 0) + continue; + + seq_printf(s, " %s(0x%lx)", reg_names[cfg_type], + PINCFG_UNPACK_VALUE(config)); + } +} +#endif + /* list of pinctrl callbacks for the pinctrl core */ static const struct pinctrl_ops samsung_pctrl_ops = { .get_groups_count = samsung_get_group_count, @@ -286,6 +312,9 @@ static const struct pinctrl_ops samsung_pctrl_ops = { .get_group_pins = samsung_get_group_pins, .dt_node_to_map = samsung_dt_node_to_map, .dt_free_map = samsung_dt_free_map, +#ifdef CONFIG_DEBUG_FS + .pin_dbg_show = samsung_pin_dbg_show, +#endif }; /* check if the selector is a valid pin function selector */
This patch adds a samsung_pin_dbg_show function to implement the pin_dbg_show callback function which can be used to show pin confuration values. Basically, it can show pin setting values by accessing the "pins" node like below: $ cat pins pin 0 (gpy7-0) CON(0x0) DAT(0x1) PUD(0x1) DRV(0x0) CON_PDN(0x0) PUD_PDN(0x0) Signed-off-by: Chanho Park <parkch98@gmail.com> --- Changes from v1: - use samsung_pinconf_get instead of samsung_pinconf_rw - use "static const char * const" type declaration of reg_names - skip condition change drivers/pinctrl/samsung/pinctrl-samsung.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+)