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| author | Vasant Hegde <hegdevasant@linux.vnet.ibm.com> | 2015-04-06 14:01:34 +0530 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2015-05-07 17:42:34 +1000 |
| commit | b25e34639cc6410c9e0cdb08808415f548bc00bb (patch) | |
| tree | 1e76410a54eaf45bfec6de1218a67792fc16fe59 /hdata/spira.c | |
| parent | 579892d785a903303eb3ebf7c7dd343752cd8286 (diff) | |
| download | skiboot-b25e34639cc6410c9e0cdb08808415f548bc00bb.zip skiboot-b25e34639cc6410c9e0cdb08808415f548bc00bb.tar.gz skiboot-b25e34639cc6410c9e0cdb08808415f548bc00bb.tar.bz2 | |
hdata: Detect LED mode and populate device tree
FSP based machine supports two different LED modes:
- Light Path : Both identify and fault LEDs are supported
- Guiding Light: Only identify LEDs are supported
And this information is passed to OPAL via HDAT. Lets parse this
and populate the device tree. Later LED driver uses this information
to populate indivisual LED node.
Device Tree property:
/ibm,opal/led/led-mode : lightpath/guidinglight
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'hdata/spira.c')
| -rw-r--r-- | hdata/spira.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/hdata/spira.c b/hdata/spira.c index 464fd8d..d29e1dc 100644 --- a/hdata/spira.c +++ b/hdata/spira.c @@ -737,6 +737,7 @@ static void add_iplparams_sys_params(const void *iplp, struct dt_node *node) static void add_iplparams_ipl_params(const void *iplp, struct dt_node *node) { const struct iplparams_iplparams *p; + struct dt_node *led_node; p = HDIF_get_idata(iplp, IPLPARAMS_IPLPARAMS, NULL); if (!CHECK_SPPTR(p)) { @@ -764,6 +765,17 @@ static void add_iplparams_ipl_params(const void *iplp, struct dt_node *node) dt_add_property_cells(node, "os-ipl-mode", p->os_ipl_mode); dt_add_property_strings(node, "cec-major-type", p->cec_ipl_maj_type ? "hot" : "cold"); + + /* Add LED type info under '/ibm,opal/led' node */ + led_node = dt_find_by_path(opal_node, DT_PROPERTY_LED_NODE); + assert(led_node); + + if (p->other_attrib & IPLPARAMS_OATRR_LIGHT_PATH) + dt_add_property_strings(led_node, DT_PROPERTY_LED_MODE, + LED_MODE_LIGHT_PATH); + else + dt_add_property_strings(led_node, DT_PROPERTY_LED_MODE, + LED_MODE_GUIDING_LIGHT); } static void add_iplparams_serials(const void *iplp, struct dt_node *node) |