diff options
Diffstat (limited to 'drivers/pinctrl/aspeed/pinctrl-aspeed.c')
| -rw-r--r-- | drivers/pinctrl/aspeed/pinctrl-aspeed.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed.c b/drivers/pinctrl/aspeed/pinctrl-aspeed.c index a86a4d66099c..7f13ce8450a3 100644 --- a/drivers/pinctrl/aspeed/pinctrl-aspeed.c +++ b/drivers/pinctrl/aspeed/pinctrl-aspeed.c @@ -213,6 +213,27 @@ static int aspeed_sig_expr_set(const struct aspeed_sig_expr *expr, if (desc->ip == ASPEED_IP_SCU && desc->reg == HW_STRAP2) continue; + /* On AST2500, Set bits in SCU7C are cleared from SCU70 */ + if (desc->ip == ASPEED_IP_SCU && desc->reg == HW_STRAP1) { + unsigned int rev_id; + + ret = regmap_read(maps[ASPEED_IP_SCU], + HW_REVISION_ID, &rev_id); + if (ret < 0) + return ret; + + if (0x04 == (rev_id >> 24)) { + u32 value = ~val & desc->mask; + + if (value) { + ret = regmap_write(maps[desc->ip], + HW_REVISION_ID, value); + if (ret < 0) + return ret; + } + } + } + ret = regmap_update_bits(maps[desc->ip], desc->reg, desc->mask, val); |