openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

pinctrl: sunrisepoint: Align GPIO number space with Windows 

It turns out that the Windows GPIO driver for Sunrisepoint PCH-H uses
similar bank structure than it does for Cannon Lake with the exception
that here the bank size is always 24 pins. Starting from pad group E the
BIOS/Windows GPIO numbering does not match the hardware anymore but
instead there are gaps to make each pad group ("bank") consume exactly
24 pins. Because of this Linux does not use correct pins for
GpioIo/GpioIo resources exposed by the BIOS.

This patch aligns the GPIO number space with BIOS/Windows to make sure
the same numbering scheme is used in Linux as well following what we did
already for Intel Cannon Lake.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=1543769
Reported-by: Vivien FRASCA <vivien.frasca@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Mika Westerberg 2018-03-29 17:37:25 +03:00 committed by Linus Walleij
parent 83b9dc1131
commit c41eb2c7f9
1 changed files with 42 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
drivers/pinctrl/intel/pinctrl-sunrisepoint.c
View File

@ -36,6 +36,27 @@
.npins = ((e) - (s) + 1), \
}
#define SPTH_GPP(r, s, e, g) \
{ \
.reg_num = (r), \
.base = (s), \
.size = ((e) - (s) + 1), \
.gpio_base = (g), \
}
#define SPTH_COMMUNITY(b, s, e, g) \
{ \
.barno = (b), \
.padown_offset = SPT_PAD_OWN, \
.padcfglock_offset = SPT_PADCFGLOCK, \
.hostown_offset = SPT_HOSTSW_OWN, \
.ie_offset = SPT_GPI_IE, \
.pin_base = (s), \
.npins = ((e) - (s) + 1), \
.gpps = (g), \
.ngpps = ARRAY_SIZE(g), \
}
/* Sunrisepoint-LP */
static const struct pinctrl_pin_desc sptlp_pins[] = {
/* GPP_A */
@ -531,10 +552,28 @@ static const struct intel_function spth_functions[] = {
FUNCTION("i2c2", spth_i2c2_groups),
};
static const struct intel_padgroup spth_community0_gpps[] = {
SPTH_GPP(0, 0, 23, 0), /* GPP_A */
SPTH_GPP(1, 24, 47, 24), /* GPP_B */
};
static const struct intel_padgroup spth_community1_gpps[] = {
SPTH_GPP(0, 48, 71, 48), /* GPP_C */
SPTH_GPP(1, 72, 95, 72), /* GPP_D */
SPTH_GPP(2, 96, 108, 96), /* GPP_E */
SPTH_GPP(3, 109, 132, 120), /* GPP_F */
SPTH_GPP(4, 133, 156, 144), /* GPP_G */
SPTH_GPP(5, 157, 180, 168), /* GPP_H */
};
static const struct intel_padgroup spth_community3_gpps[] = {
SPTH_GPP(0, 181, 191, 192), /* GPP_I */
};
static const struct intel_community spth_communities[] = {
SPT_COMMUNITY(0, 0, 47),
SPT_COMMUNITY(1, 48, 180),
SPT_COMMUNITY(2, 181, 191),
SPTH_COMMUNITY(0, 0, 47, spth_community0_gpps),
SPTH_COMMUNITY(1, 48, 180, spth_community1_gpps),
SPTH_COMMUNITY(2, 181, 191, spth_community3_gpps),
};
static const struct intel_pinctrl_soc_data spth_soc_data = {