diff options
| author | Grant Likely <grant.likely@linaro.org> | 2014-11-24 14:50:07 +0000 |
|---|---|---|
| committer | Grant Likely <grant.likely@linaro.org> | 2014-11-24 14:50:07 +0000 |
| commit | 66e6a5a1fcd2f3e05f4d499b539a1f77ceb52d1d (patch) | |
| tree | d72f980f64b88ea4e976215a503fcb038e02f981 /drivers/of/address.c | |
| parent | 2d0747c4b68be8eb8ccfa2c538f2f5dd2ea89094 (diff) | |
| parent | 5d01410fe4d92081f349b013a2e7a95429e4f2c9 (diff) | |
Merge tag 'v3.18-rc6' into devicetree/next
v3.18-rc6 contains an important DT bug fix, c1a2086e2d, "of/selftest:
Fix off-by-one error in removal path" which affects testing of the
overlay patch series. Merge it into the devicetree/next staging branch
so that the overlay patches are applied on top of a known working tree.
Linux 3.18-rc6
Conflicts:
drivers/of/address.c
Diffstat (limited to 'drivers/of/address.c')
| -rw-r--r-- | drivers/of/address.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/of/address.c b/drivers/of/address.c index 78f02f65fc48..ad2906919d45 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -450,6 +450,21 @@ static struct of_bus *of_match_bus(struct device_node *np) return NULL; } +static int of_empty_ranges_quirk(void) +{ + if (IS_ENABLED(CONFIG_PPC)) { + /* To save cycles, we cache the result */ + static int quirk_state = -1; + + if (quirk_state < 0) + quirk_state = + of_machine_is_compatible("Power Macintosh") || + of_machine_is_compatible("MacRISC"); + return quirk_state; + } + return false; +} + static int of_translate_one(struct device_node *parent, struct of_bus *bus, struct of_bus *pbus, __be32 *addr, int na, int ns, int pna, const char *rprop) @@ -475,12 +490,10 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus, * This code is only enabled on powerpc. --gcl */ ranges = of_get_property(parent, rprop, &rlen); -#if !defined(CONFIG_PPC) - if (ranges == NULL) { + if (ranges == NULL && !of_empty_ranges_quirk()) { pr_debug("OF: no ranges; cannot translate\n"); return 1; } -#endif /* !defined(CONFIG_PPC) */ if (ranges == NULL || rlen == 0) { offset = of_read_number(addr, na); memset(addr, 0, pna * 4); |