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authorSrinivas Kandagatla <srinivas.kandagatla@linaro.org>2018-06-19 17:13:01 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-07-07 17:24:32 +0200
commit917809e2280bb83994be8b642373fd941d40c407 (patch)
treeb932c84646fef85bceccaaea9e06c6bc7b2141e7 /drivers/slimbus/slimbus.h
parent992d36158a06322638fc6041744886766336fe50 (diff)
slimbus: ngd: Add qcom SLIMBus NGD driver
This patch adds suppor to Qualcomm SLIMBus Non-Generic Device (NGD) controller driver. This is light-weight SLIMBus controller driver responsible for communicating with slave HW directly over the bus using messaging interface, and communicating with master component residing on ADSP for bandwidth and data-channel management Based on intial work from Karthikeyan Ramasubramanian <kramasub@codeaurora.org> and Sagar Dharia <sdharia@codeaurora.org> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Tested-by: Craig Tatlor <ctatlor97@gmail.com> Reviewed-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/slimbus/slimbus.h')
-rw-r--r--drivers/slimbus/slimbus.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/slimbus/slimbus.h b/drivers/slimbus/slimbus.h
index 2ba6545fa716..63229e8cd050 100644
--- a/drivers/slimbus/slimbus.h
+++ b/drivers/slimbus/slimbus.h
@@ -17,6 +17,8 @@
/* SLIMbus message types. Related to interpretation of message code. */
#define SLIM_MSG_MT_CORE 0x0
+#define SLIM_MSG_MT_DEST_REFERRED_USER 0x2
+#define SLIM_MSG_MT_SRC_REFERRED_USER 0x6
/*
* SLIM Broadcast header format
@@ -48,6 +50,12 @@
#define SLIM_MSG_MC_NEXT_PAUSE_CLOCK 0x4A
#define SLIM_MSG_MC_RECONFIGURE_NOW 0x5F
+/*
+ * Clock pause flag to indicate that the reconfig message
+ * corresponds to clock pause sequence
+ */
+#define SLIM_MSG_CLK_PAUSE_SEQ_FLG (1U << 8)
+
/* Clock pause values per SLIMbus spec */
#define SLIM_CLK_FAST 0
#define SLIM_CLK_CONST_PHASE 1