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| author | Linus Walleij <linus.walleij@linaro.org> | 2015-05-28 10:11:19 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2015-05-28 10:14:21 +0200 |
| commit | 815088550342904acd68f43436e1b4d1d78b77c1 (patch) | |
| tree | 49eb667edff42461733f0d7f9dde71035c314ca6 | |
| parent | a2202a4c762bedb56bcaafd3200deceac1c2e7b5 (diff) | |
| download | linux-stable-815088550342904acd68f43436e1b4d1d78b77c1.tar.gz linux-stable-815088550342904acd68f43436e1b4d1d78b77c1.tar.bz2 linux-stable-815088550342904acd68f43436e1b4d1d78b77c1.zip | |
pinctrl: improve debugfs for strict controllers
If we know we are using a strict pin controller (one that cannot
mix device functions+group use and GPIO) we can be a bit more
specific in debugfs, just print either device-function-group
or GPIO consumer for the pin. Let's do that to be helpful.
Cc: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | drivers/pinctrl/pinmux.c | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c index c58c168b06c2..77f82b23f7be 100644 --- a/drivers/pinctrl/pinmux.c +++ b/drivers/pinctrl/pinmux.c @@ -585,7 +585,12 @@ static int pinmux_pins_show(struct seq_file *s, void *what) return 0; seq_puts(s, "Pinmux settings per pin\n"); - seq_puts(s, "Format: pin (name): mux_owner gpio_owner hog?\n"); + if (pmxops->strict) + seq_puts(s, + "Format: pin (name): mux_owner|gpio_owner (strict) hog?\n"); + else + seq_puts(s, + "Format: pin (name): mux_owner gpio_owner hog?\n"); mutex_lock(&pctldev->mutex); @@ -604,14 +609,34 @@ static int pinmux_pins_show(struct seq_file *s, void *what) !strcmp(desc->mux_owner, pinctrl_dev_get_name(pctldev))) is_hog = true; - seq_printf(s, "pin %d (%s): %s %s%s", pin, - desc->name ? desc->name : "unnamed", - desc->mux_owner ? desc->mux_owner - : "(MUX UNCLAIMED)", - desc->gpio_owner ? desc->gpio_owner - : "(GPIO UNCLAIMED)", - is_hog ? " (HOG)" : ""); + if (pmxops->strict) { + if (desc->mux_owner) + seq_printf(s, "pin %d (%s): device %s%s", + pin, + desc->name ? desc->name : "unnamed", + desc->mux_owner, + is_hog ? " (HOG)" : ""); + else if (desc->gpio_owner) + seq_printf(s, "pin %d (%s): GPIO %s", + pin, + desc->name ? desc->name : "unnamed", + desc->gpio_owner); + else + seq_printf(s, "pin %d (%s): UNCLAIMED", + pin, + desc->name ? desc->name : "unnamed"); + } else { + /* For non-strict controllers */ + seq_printf(s, "pin %d (%s): %s %s%s", pin, + desc->name ? desc->name : "unnamed", + desc->mux_owner ? desc->mux_owner + : "(MUX UNCLAIMED)", + desc->gpio_owner ? desc->gpio_owner + : "(GPIO UNCLAIMED)", + is_hog ? " (HOG)" : ""); + } + /* If mux: print function+group claiming the pin */ if (desc->mux_setting) seq_printf(s, " function %s group %s\n", pmxops->get_function_name(pctldev, |