diff options
Diffstat (limited to 'drivers/bus/ti-sysc.c')
| -rw-r--r-- | drivers/bus/ti-sysc.c | 46 |
1 files changed, 42 insertions, 4 deletions
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index 8bf153d82138..c7e0896929bb 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -959,6 +959,42 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { #endif }; +/* + * Early quirks based on module base and register offsets only that are + * needed before the module revision can be read + */ +static void sysc_init_early_quirks(struct sysc *ddata) +{ + const struct sysc_revision_quirk *q; + int i; + + for (i = 0; i < ARRAY_SIZE(sysc_revision_quirks); i++) { + q = &sysc_revision_quirks[i]; + + if (!q->base) + continue; + + if (q->base != ddata->module_pa) + continue; + + if (q->rev_offset >= 0 && + q->rev_offset != ddata->offsets[SYSC_REVISION]) + continue; + + if (q->sysc_offset >= 0 && + q->sysc_offset != ddata->offsets[SYSC_SYSCONFIG]) + continue; + + if (q->syss_offset >= 0 && + q->syss_offset != ddata->offsets[SYSC_SYSSTATUS]) + continue; + + ddata->name = q->name; + ddata->cfg.quirks |= q->quirks; + } +} + +/* Quirks that also consider the revision register value */ static void sysc_init_revision_quirks(struct sysc *ddata) { const struct sysc_revision_quirk *q; @@ -1829,10 +1865,6 @@ static int sysc_probe(struct platform_device *pdev) if (error) goto unprepare; - error = sysc_get_clocks(ddata); - if (error) - return error; - error = sysc_map_and_check_registers(ddata); if (error) goto unprepare; @@ -1853,6 +1885,12 @@ static int sysc_probe(struct platform_device *pdev) if (error) goto unprepare; + sysc_init_early_quirks(ddata); + + error = sysc_get_clocks(ddata); + if (error) + return error; + error = sysc_init_resets(ddata); if (error) return error; |