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authorSoren Brinkmann <soren.brinkmann@xilinx.com>2014-10-16 10:11:29 -0700
committerLinus Walleij <linus.walleij@linaro.org>2014-10-28 16:59:31 +0100
commiteec450713e5c5cafa9b8565c84548580080b1f64 (patch)
treebce0c8ec02794bc71cd863db34bc44788908a831 /drivers/pinctrl/pinconf-generic.c
parentc61c2d7071d865adc3bbd92dee670bcf7bf56099 (diff)
downloadlinux-eec450713e5c5cafa9b8565c84548580080b1f64.tar.bz2
pinctrl: pinconf-generic: Add flag to print arguments
When dumping pinconf information in debugfs, config arguments are only printed when a unit is present and the argument is != 0. For parameters like the slew rate, this does not work. The slew rate uses a driver specific format for the argument, i.e. 0 can be a valid argument and a unit is not provided for it. For that reason, add a flag to enable printing the argument instead of inferring it from the presence of a unit and the value of the argument. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinconf-generic.c')
-rw-r--r--drivers/pinctrl/pinconf-generic.c65
1 files changed, 37 insertions, 28 deletions
diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c
index 29ff77f90fcb..e28ef957ca2d 100644
--- a/drivers/pinctrl/pinconf-generic.c
+++ b/drivers/pinctrl/pinconf-generic.c
@@ -32,30 +32,32 @@ struct pin_config_item {
const enum pin_config_param param;
const char * const display;
const char * const format;
+ bool has_arg;
};
-#define PCONFDUMP(a, b, c) { .param = a, .display = b, .format = c }
+#define PCONFDUMP(a, b, c, d) { .param = a, .display = b, .format = c, \
+ .has_arg = d }
static struct pin_config_item conf_items[] = {
- PCONFDUMP(PIN_CONFIG_BIAS_DISABLE, "input bias disabled", NULL),
- PCONFDUMP(PIN_CONFIG_BIAS_HIGH_IMPEDANCE, "input bias high impedance", NULL),
- PCONFDUMP(PIN_CONFIG_BIAS_BUS_HOLD, "input bias bus hold", NULL),
- PCONFDUMP(PIN_CONFIG_BIAS_PULL_UP, "input bias pull up", NULL),
- PCONFDUMP(PIN_CONFIG_BIAS_PULL_DOWN, "input bias pull down", NULL),
+ PCONFDUMP(PIN_CONFIG_BIAS_DISABLE, "input bias disabled", NULL, false),
+ PCONFDUMP(PIN_CONFIG_BIAS_HIGH_IMPEDANCE, "input bias high impedance", NULL, false),
+ PCONFDUMP(PIN_CONFIG_BIAS_BUS_HOLD, "input bias bus hold", NULL, false),
+ PCONFDUMP(PIN_CONFIG_BIAS_PULL_UP, "input bias pull up", NULL, false),
+ PCONFDUMP(PIN_CONFIG_BIAS_PULL_DOWN, "input bias pull down", NULL, false),
PCONFDUMP(PIN_CONFIG_BIAS_PULL_PIN_DEFAULT,
- "input bias pull to pin specific state", NULL),
- PCONFDUMP(PIN_CONFIG_DRIVE_PUSH_PULL, "output drive push pull", NULL),
- PCONFDUMP(PIN_CONFIG_DRIVE_OPEN_DRAIN, "output drive open drain", NULL),
- PCONFDUMP(PIN_CONFIG_DRIVE_OPEN_SOURCE, "output drive open source", NULL),
- PCONFDUMP(PIN_CONFIG_DRIVE_STRENGTH, "output drive strength", "mA"),
- PCONFDUMP(PIN_CONFIG_INPUT_ENABLE, "input enabled", NULL),
- PCONFDUMP(PIN_CONFIG_INPUT_SCHMITT_ENABLE, "input schmitt enabled", NULL),
- PCONFDUMP(PIN_CONFIG_INPUT_SCHMITT, "input schmitt trigger", NULL),
- PCONFDUMP(PIN_CONFIG_INPUT_DEBOUNCE, "input debounce", "usec"),
- PCONFDUMP(PIN_CONFIG_POWER_SOURCE, "pin power source", "selector"),
- PCONFDUMP(PIN_CONFIG_SLEW_RATE, "slew rate", NULL),
- PCONFDUMP(PIN_CONFIG_LOW_POWER_MODE, "pin low power", "mode"),
- PCONFDUMP(PIN_CONFIG_OUTPUT, "pin output", "level"),
+ "input bias pull to pin specific state", NULL, false),
+ PCONFDUMP(PIN_CONFIG_DRIVE_PUSH_PULL, "output drive push pull", NULL, false),
+ PCONFDUMP(PIN_CONFIG_DRIVE_OPEN_DRAIN, "output drive open drain", NULL, false),
+ PCONFDUMP(PIN_CONFIG_DRIVE_OPEN_SOURCE, "output drive open source", NULL, false),
+ PCONFDUMP(PIN_CONFIG_DRIVE_STRENGTH, "output drive strength", "mA", true),
+ PCONFDUMP(PIN_CONFIG_INPUT_ENABLE, "input enabled", NULL, false),
+ PCONFDUMP(PIN_CONFIG_INPUT_SCHMITT_ENABLE, "input schmitt enabled", NULL, false),
+ PCONFDUMP(PIN_CONFIG_INPUT_SCHMITT, "input schmitt trigger", NULL, false),
+ PCONFDUMP(PIN_CONFIG_INPUT_DEBOUNCE, "input debounce", "usec", true),
+ PCONFDUMP(PIN_CONFIG_POWER_SOURCE, "pin power source", "selector", true),
+ PCONFDUMP(PIN_CONFIG_SLEW_RATE, "slew rate", NULL, true),
+ PCONFDUMP(PIN_CONFIG_LOW_POWER_MODE, "pin low power", "mode", true),
+ PCONFDUMP(PIN_CONFIG_OUTPUT, "pin output", "level", true),
};
void pinconf_generic_dump_pin(struct pinctrl_dev *pctldev,
@@ -85,11 +87,14 @@ void pinconf_generic_dump_pin(struct pinctrl_dev *pctldev,
seq_puts(s, " ");
seq_puts(s, conf_items[i].display);
/* Print unit if available */
- if (conf_items[i].format &&
- pinconf_to_config_argument(config) != 0)
- seq_printf(s, " (%u %s)",
- pinconf_to_config_argument(config),
- conf_items[i].format);
+ if (conf_items[i].has_arg) {
+ seq_printf(s, " (%u",
+ pinconf_to_config_argument(config));
+ if (conf_items[i].format)
+ seq_printf(s, " %s)", conf_items[i].format);
+ else
+ seq_puts(s, ")");
+ }
}
}
@@ -121,10 +126,14 @@ void pinconf_generic_dump_group(struct pinctrl_dev *pctldev,
seq_puts(s, " ");
seq_puts(s, conf_items[i].display);
/* Print unit if available */
- if (conf_items[i].format && config != 0)
- seq_printf(s, " (%u %s)",
- pinconf_to_config_argument(config),
- conf_items[i].format);
+ if (conf_items[i].has_arg) {
+ seq_printf(s, " (%u",
+ pinconf_to_config_argument(config));
+ if (conf_items[i].format)
+ seq_printf(s, " %s)", conf_items[i].format);
+ else
+ seq_puts(s, ")");
+ }
}
}