mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-11 04:54:13 +08:00
pinctrl: intel: fix offset calculation issue of register PAD_OWN
The calculation equation of PAD_OWN register offset is not correct for Broxton, verified this fix will get right offset for Broxton. Signed-off-by: Qi Zheng <qi.zheng@intel.com> Signed-off-by: Qipeng Zha <qipeng.zha@intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
parent
618a919b4c
commit
99a735b3c2
@ -34,6 +34,7 @@
|
||||
#define PADOWN_BITS 4
|
||||
#define PADOWN_SHIFT(p) ((p) % 8 * PADOWN_BITS)
|
||||
#define PADOWN_MASK(p) (0xf << PADOWN_SHIFT(p))
|
||||
#define PADOWN_GPP(p) ((p) / 8)
|
||||
|
||||
/* Offset from pad_regs */
|
||||
#define PADCFG0 0x000
|
||||
@ -139,7 +140,7 @@ static void __iomem *intel_get_padcfg(struct intel_pinctrl *pctrl, unsigned pin,
|
||||
static bool intel_pad_owned_by_host(struct intel_pinctrl *pctrl, unsigned pin)
|
||||
{
|
||||
const struct intel_community *community;
|
||||
unsigned padno, gpp, gpp_offset, offset;
|
||||
unsigned padno, gpp, offset, group;
|
||||
void __iomem *padown;
|
||||
|
||||
community = intel_get_community(pctrl, pin);
|
||||
@ -149,9 +150,9 @@ static bool intel_pad_owned_by_host(struct intel_pinctrl *pctrl, unsigned pin)
|
||||
return true;
|
||||
|
||||
padno = pin_to_padno(community, pin);
|
||||
gpp = padno / NPADS_IN_GPP;
|
||||
gpp_offset = padno % NPADS_IN_GPP;
|
||||
offset = community->padown_offset + gpp * 16 + (gpp_offset / 8) * 4;
|
||||
group = padno / community->gpp_size;
|
||||
gpp = PADOWN_GPP(padno % community->gpp_size);
|
||||
offset = community->padown_offset + 0x10 * group + gpp * 4;
|
||||
padown = community->regs + offset;
|
||||
|
||||
return !(readl(padown) & PADOWN_MASK(padno));
|
||||
|
Loading…
Reference in New Issue
Block a user