diff options
| author |   Lee Jones <lee.jones@linaro.org> | 2015-03-18 17:21:18 +0000 |
|---|---|---|
| committer |   Linus Walleij <linus.walleij@linaro.org> | 2015-03-25 16:38:06 +0100 |
| commit | e2ed0e88ecba59775a25b3cc237eed1faf71a9aa (patch) | |
| tree | bffc4a915a4786b7df9fd656daf04530193b1a00 /drivers/pinctrl | |
| parent | pinctrl: st: Supply a GPIO get_direction() call-back (diff) | |
| download | linux-dev-e2ed0e88ecba59775a25b3cc237eed1faf71a9aa.tar.xz linux-dev-e2ed0e88ecba59775a25b3cc237eed1faf71a9aa.zip | |
pinctrl: st: Show correct pin direction also in GPIO mode
Until now ST's pinconf_dbg_show() call-back has displayed the PIO
alternate function direction, which is only relevant if a pin is
operating in an alternate function mode i.e not GPIO mode. If a
pin is in GPIO mode its direction is both set and status is
obtained by a completely different/unrelated bunch of registers.
This change ensures that the correct pin direction is shown, even
if a pin is operating in GPIO mode.
Reported-by: Olivier Clergeaud <olivier.clergeaud@st.com>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/pinctrl-st.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c index 52a437738cc2..1cda40e013c1 100644 --- a/drivers/pinctrl/pinctrl-st.c +++ b/drivers/pinctrl/pinctrl-st.c @@ -206,6 +206,9 @@ #define gpio_chip_to_bank(chip) \ container_of(chip, struct st_gpio_bank, gpio_chip) +#define pc_to_bank(pc) \ + container_of(pc, struct st_gpio_bank, pc) + enum st_retime_style { st_retime_style_none, st_retime_style_packed, @@ -1053,15 +1056,18 @@ static int st_pinconf_get(struct pinctrl_dev *pctldev, static void st_pinconf_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, unsigned pin_id) { + struct st_pio_control *pc; unsigned long config; + int offset = st_gpio_pin(pin_id); mutex_unlock(&pctldev->mutex); + pc = st_get_pio_control(pctldev, pin_id); st_pinconf_get(pctldev, pin_id, &config); mutex_lock(&pctldev->mutex); seq_printf(s, "[OE:%ld,PU:%ld,OD:%ld]\n" "\t\t[retime:%ld,invclk:%ld,clknotdat:%ld," "de:%ld,rt-clk:%ld,rt-delay:%ld]", - ST_PINCONF_UNPACK_OE(config), + !st_gpio_get_direction(&pc_to_bank(pc)->gpio_chip, offset), ST_PINCONF_UNPACK_PU(config), ST_PINCONF_UNPACK_OD(config), ST_PINCONF_UNPACK_RT(config), |