@@ -8,6 +8,7 @@ led {
compatible = "ibm,opal-v3-led";
phandle = <0x1000006b>;
linux,phandle = <0x1000006b>;
+ led-mode = "lightpath";
U78C9.001.RST0027-P1-C1 {
led-types = "identify", "fault";
@@ -21,6 +22,8 @@ led {
'compatible' property describes LEDs compatibility.
+'led-mode' property describes service indicator mode (lightpath/guidinglight).
+
Each node under 'led' node describes location code of FRU/Enclosure.
The properties under each node:
@@ -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)
@@ -265,6 +265,7 @@ struct iplparams_iplparams {
__be32 other_attrib;
#define IPLPARAMS_OATTR_RST_PCI_BUSNO 0x08000000
#define IPLPARAMS_OATTR_CLEAR_NVRAM 0x04000000
+#define IPLPARAMS_OATRR_LIGHT_PATH 0x00000004
__be16 huge_page_count;
uint8_t huge_page_size;
#define IPLPARAMS_HUGE_PG_SIZE_16G 0
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> --- doc/device-tree/ibm,opal/led.txt | 3 +++ hdata/spira.c | 12 ++++++++++++ hdata/spira.h | 1 + 3 files changed, 16 insertions(+)