UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Lee Jones 2015-03-18 17:21:18 +00:00 committed by Linus Walleij
parent 1e702ec2aa
commit e2ed0e88ec
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/pinctrl/pinctrl-st.c
View File

@ -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),