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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2019-06-06 15:13:57 +0300
committerSantosh Shilimkar <santosh.shilimkar@oracle.com>2019-06-13 06:13:36 +0300
commitfa42da11b285d720af5ccb1a305e76feab26c879 (patch)
tree79668b9eba4bbce94e5af1671ee89042f7cdd848 /drivers/firmware/ti_sci.c
parent1e407f337f4015c8ffc56e7cfd70e06b2e9fc9da (diff)
downloadlinux-fa42da11b285d720af5ccb1a305e76feab26c879.tar.xz
firmware: ti_sci: Parse all resource ranges even if some is not available
Do not fail if any of the requested subtypes are not availabe, but set the number of resources to 0 and continue parsing the resource ranges. Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tero Kristo <t-kristo@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Diffstat (limited to 'drivers/firmware/ti_sci.c')
-rw-r--r--drivers/firmware/ti_sci.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c
index b47e33e7411f..86b272751c52 100644
--- a/drivers/firmware/ti_sci.c
+++ b/drivers/firmware/ti_sci.c
@@ -3180,6 +3180,7 @@ devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
struct device *dev, u32 dev_id, char *of_prop)
{
struct ti_sci_resource *res;
+ bool valid_set = false;
u32 resource_subtype;
int i, ret;
@@ -3210,15 +3211,18 @@ devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
&res->desc[i].start,
&res->desc[i].num);
if (ret) {
- dev_err(dev, "dev = %d subtype %d not allocated for this host\n",
+ dev_dbg(dev, "dev = %d subtype %d not allocated for this host\n",
dev_id, resource_subtype);
- return ERR_PTR(ret);
+ res->desc[i].start = 0;
+ res->desc[i].num = 0;
+ continue;
}
dev_dbg(dev, "dev = %d, subtype = %d, start = %d, num = %d\n",
dev_id, resource_subtype, res->desc[i].start,
res->desc[i].num);
+ valid_set = true;
res->desc[i].res_map =
devm_kzalloc(dev, BITS_TO_LONGS(res->desc[i].num) *
sizeof(*res->desc[i].res_map), GFP_KERNEL);
@@ -3227,7 +3231,10 @@ devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
}
raw_spin_lock_init(&res->lock);
- return res;
+ if (valid_set)
+ return res;
+
+ return ERR_PTR(-EINVAL);
}
static int tisci_reboot_handler(struct notifier_block *nb, unsigned long mode,