diff options
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-intel.c | 60 |
1 files changed, 40 insertions, 20 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index b6ef1911c1dd..ae13e4390935 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -1321,34 +1321,19 @@ static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq) return 0; } -static int intel_pinctrl_add_padgroups(struct intel_pinctrl *pctrl, - struct intel_community *community) +static int intel_pinctrl_add_padgroups_by_gpps(struct intel_pinctrl *pctrl, + struct intel_community *community) { struct intel_padgroup *gpps; - unsigned int npins = community->npins; unsigned int padown_num = 0; - size_t ngpps, i; - - if (community->gpps) - ngpps = community->ngpps; - else - ngpps = DIV_ROUND_UP(community->npins, community->gpp_size); + size_t i, ngpps = community->ngpps; gpps = devm_kcalloc(pctrl->dev, ngpps, sizeof(*gpps), GFP_KERNEL); if (!gpps) return -ENOMEM; for (i = 0; i < ngpps; i++) { - if (community->gpps) { - gpps[i] = community->gpps[i]; - } else { - unsigned int gpp_size = community->gpp_size; - - gpps[i].reg_num = i; - gpps[i].base = community->pin_base + i * gpp_size; - gpps[i].size = min(gpp_size, npins); - npins -= gpps[i].size; - } + gpps[i] = community->gpps[i]; if (gpps[i].size > 32) return -EINVAL; @@ -1367,6 +1352,38 @@ static int intel_pinctrl_add_padgroups(struct intel_pinctrl *pctrl, } gpps[i].padown_num = padown_num; + padown_num += DIV_ROUND_UP(gpps[i].size * 4, 32); + } + + community->gpps = gpps; + + return 0; +} + +static int intel_pinctrl_add_padgroups_by_size(struct intel_pinctrl *pctrl, + struct intel_community *community) +{ + struct intel_padgroup *gpps; + unsigned int npins = community->npins; + unsigned int padown_num = 0; + size_t i, ngpps = DIV_ROUND_UP(npins, community->gpp_size); + + if (community->gpp_size > 32) + return -EINVAL; + + gpps = devm_kcalloc(pctrl->dev, ngpps, sizeof(*gpps), GFP_KERNEL); + if (!gpps) + return -ENOMEM; + + for (i = 0; i < ngpps; i++) { + unsigned int gpp_size = community->gpp_size; + + gpps[i].reg_num = i; + gpps[i].base = community->pin_base + i * gpp_size; + gpps[i].size = min(gpp_size, npins); + npins -= gpps[i].size; + + gpps[i].padown_num = padown_num; /* * In older hardware the number of padown registers per @@ -1483,7 +1500,10 @@ static int intel_pinctrl_probe(struct platform_device *pdev, community->regs = regs; community->pad_regs = regs + padbar; - ret = intel_pinctrl_add_padgroups(pctrl, community); + if (community->gpps) + ret = intel_pinctrl_add_padgroups_by_gpps(pctrl, community); + else + ret = intel_pinctrl_add_padgroups_by_size(pctrl, community); if (ret) return ret; } |