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authorAnshuman Khandual <khandual@linux.vnet.ibm.com>2015-08-19 18:49:52 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2015-08-20 10:19:07 +0200
commit8a8d91817aec6b9ca7a289891f9e6f721100ec09 (patch)
tree494f4657cec3cb7a34b42ca5ba6c1ca5231d3cf7 /arch/powerpc
parentpowerpc/powernv: Fix the log message when disabling VF (diff)
downloadlinux-8a8d91817aec6b9ca7a289891f9e6f721100ec09.tar.xz
linux-8a8d91817aec6b9ca7a289891f9e6f721100ec09.zip
powerpc/powernv: Add OPAL interfaces for accessing and modifying system LED states
This patch registers the following two new OPAL interfaces calls for the platform LED subsystem. With the help of these new OPAL calls, the kernel will be able to get or set the state of various individual LEDs on the system at any given location code which is passed through the LED specific device tree nodes. (1) OPAL_LEDS_GET_INDICATOR opal_leds_get_ind (2) OPAL_LEDS_SET_INDICATOR opal_leds_set_ind Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com> Acked-by: Stewart Smith <stewart@linux.vnet.ibm.com> Tested-by: Stewart Smith <stewart@linux.vnet.ibm.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/include/asm/opal-api.h2
-rw-r--r--arch/powerpc/include/asm/opal.h4
-rw-r--r--arch/powerpc/platforms/powernv/opal-wrappers.S2
3 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h
index 47d549ab2c18..b516ec1d3b4c 100644
--- a/arch/powerpc/include/asm/opal-api.h
+++ b/arch/powerpc/include/asm/opal-api.h
@@ -154,6 +154,8 @@
#define OPAL_FLASH_WRITE 111
#define OPAL_FLASH_ERASE 112
#define OPAL_PRD_MSG 113
+#define OPAL_LEDS_GET_INDICATOR 114
+#define OPAL_LEDS_SET_INDICATOR 115
#define OPAL_CEC_REBOOT2 116
#define OPAL_LAST 116
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 48762b577988..800115910e43 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -197,6 +197,10 @@ int64_t opal_ipmi_recv(uint64_t interface, struct opal_ipmi_msg *msg,
int64_t opal_i2c_request(uint64_t async_token, uint32_t bus_id,
struct opal_i2c_request *oreq);
int64_t opal_prd_msg(struct opal_prd_msg *msg);
+int64_t opal_leds_get_ind(char *loc_code, __be64 *led_mask,
+ __be64 *led_value, __be64 *max_led_type);
+int64_t opal_leds_set_ind(uint64_t token, char *loc_code, const u64 led_mask,
+ const u64 led_value, __be64 *max_led_type);
int64_t opal_flash_read(uint64_t id, uint64_t offset, uint64_t buf,
uint64_t size, uint64_t token);
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index 6224176dab59..b7a464fef7a7 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -299,3 +299,5 @@ OPAL_CALL(opal_flash_read, OPAL_FLASH_READ);
OPAL_CALL(opal_flash_write, OPAL_FLASH_WRITE);
OPAL_CALL(opal_flash_erase, OPAL_FLASH_ERASE);
OPAL_CALL(opal_prd_msg, OPAL_PRD_MSG);
+OPAL_CALL(opal_leds_get_ind, OPAL_LEDS_GET_INDICATOR);
+OPAL_CALL(opal_leds_set_ind, OPAL_LEDS_SET_INDICATOR);