return 0;
}
- seq_printf(s, "%d - %s -%s", alt,
+ static void stm32_pconf_dbg_show(struct pinctrl_dev *pctldev,
+ struct seq_file *s,
+ unsigned int pin)
+ {
+ struct pinctrl_gpio_range *range;
+ struct stm32_gpio_bank *bank;
+ int offset;
+ u32 mode, alt, drive, speed, bias;
+ static const char * const modes[] = {
+ "input", "output", "alternate", "analog" };
+ static const char * const speeds[] = {
+ "low", "medium", "high", "very high" };
+ static const char * const biasing[] = {
+ "floating", "pull up", "pull down", "" };
+ bool val;
+
+ range = pinctrl_find_gpio_range_from_pin_nolock(pctldev, pin);
+ bank = gpio_range_to_bank(range);
+ offset = stm32_gpio_pin(pin);
+
+ stm32_pmx_get_mode(bank, offset, &mode, &alt);
+ bias = stm32_pconf_get_bias(bank, offset);
+
+ seq_printf(s, "%s ", modes[mode]);
+
+ switch (mode) {
+ /* input */
+ case 0:
+ val = stm32_pconf_input_get(bank, offset);
+ seq_printf(s, "- %s - %s",
+ val ? "high" : "low",
+ biasing[bias]);
+ break;
+
+ /* output */
+ case 1:
+ drive = stm32_pconf_get_driving(bank, offset);
+ speed = stm32_pconf_get_speed(bank, offset);
+ val = stm32_pconf_output_get(bank, offset);
+ seq_printf(s, "- %s - %s - %s - %s %s",
+ val ? "high" : "low",
+ drive ? "open drain" : "push pull",
+ biasing[bias],
+ speeds[speed], "speed");
+ break;
+
+ /* alternate */
+ case 2:
+ drive = stm32_pconf_get_driving(bank, offset);
+ speed = stm32_pconf_get_speed(bank, offset);
++ seq_printf(s, "%d - %s - %s - %s %s", alt,
+ drive ? "open drain" : "push pull",
+ biasing[bias],
+ speeds[speed], "speed");
+ break;
+
+ /* analog */
+ case 3:
+ break;
+ }
+ }
+
+
static const struct pinconf_ops stm32_pconf_ops = {
.pin_config_group_get = stm32_pconf_group_get,
.pin_config_group_set = stm32_pconf_group_set,