diff options
| author |   Andrew Halaney <ajhalaney@gmail.com> | 2020-08-06 10:53:25 -0500 |
|---|---|---|
| committer |   Linus Walleij <linus.walleij@linaro.org> | 2020-08-27 10:25:17 +0200 |
| commit | fe9c36442769e07aaaf0dce1fb7f083faad4b1e9 (patch) | |
| tree | 41d2f570f78ab83da92ec7a005c860599aedcbc4 /drivers/pinctrl | |
| parent | Linux 5.9-rc1 (diff) | |
| download | linux-dev-fe9c36442769e07aaaf0dce1fb7f083faad4b1e9.tar.xz linux-dev-fe9c36442769e07aaaf0dce1fb7f083faad4b1e9.zip | |
pinctrl: nomadik: Fix pull direction debug info
The nomadik pinctrl hardware doesn't have any way to
determine if the active pull is up or down. Reading
the bit currently used to report if the pull is up/down
indicates if the gpio input is reading high or low, it
doesn't reflect the pull state.
For this reason change the output from "pull up"/"pull down" to
"pull enabled". This avoids confusing developers who were using
the output to determine what the pull state is.
Signed-off-by: Andrew Halaney <ajhalaney@gmail.com>
Link: https://lore.kernel.org/r/20200806155322.GA25523@ola-jn9phv2.ad.garmin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/nomadik/pinctrl-nomadik.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c index ba25c4654391..657e35a75d84 100644 --- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c +++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c @@ -931,11 +931,6 @@ static void nmk_gpio_dbg_show_one(struct seq_file *s, [NMK_GPIO_ALT_C+3] = "altC3", [NMK_GPIO_ALT_C+4] = "altC4", }; - const char *pulls[] = { - "none ", - "pull down", - "pull up ", - }; clk_enable(nmk_chip->clk); is_out = !!(readl(nmk_chip->addr + NMK_GPIO_DIR) & BIT(offset)); @@ -946,7 +941,7 @@ static void nmk_gpio_dbg_show_one(struct seq_file *s, mode = nmk_prcm_gpiocr_get_mode(pctldev, gpio); if (is_out) { - seq_printf(s, " gpio-%-3d (%-20.20s) out %s %s", + seq_printf(s, " gpio-%-3d (%-20.20s) out %s %s", gpio, label ?: "(none)", data_out ? "hi" : "lo", @@ -954,11 +949,12 @@ static void nmk_gpio_dbg_show_one(struct seq_file *s, } else { int irq = chip->to_irq(chip, offset); struct irq_desc *desc = irq_to_desc(irq); - int pullidx = 0; + const int pullidx = pull ? 1 : 0; int val; - - if (pull) - pullidx = data_out ? 2 : 1; + static const char * const pulls[] = { + "none ", + "pull enabled", + }; seq_printf(s, " gpio-%-3d (%-20.20s) in %s %s", gpio, |