net: ipa: allow arbitrary number of interconnects

Currently we assume that the IPA hardware has exactly three
interconnects.  But that won't be guaranteed for all platforms,
so allow any number of interconnects to be specified in the
configuration data.

For each platform, define an array of interconnect data entries
(still associated with the IPA clock structure), and record the
number of entries initialized in that array.

Loop over all entries in this array when initializing, enabling,
disabling, or tearing down the set of interconnects.

With this change we no longer need the ipa_interconnect_id
enumerated type, so get rid of it.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 4 insertions, 10 deletions

diff --git a/drivers/net/ipa/ipa_data.h b/drivers/net/ipa/ipa_data.h
index d8ea6266dc6a..b476fc373f7f 100644
--- a/drivers/net/ipa/ipa_data.h
+++ b/drivers/net/ipa/ipa_data.h
@@ -258,14 +258,6 @@ struct ipa_mem_data {
 	u32 smem_size;
 };
 
-/** enum ipa_interconnect_id - IPA interconnect identifier */
-enum ipa_interconnect_id {
-	IPA_INTERCONNECT_MEMORY,
-	IPA_INTERCONNECT_IMEM,
-	IPA_INTERCONNECT_CONFIG,
-	IPA_INTERCONNECT_COUNT,		/* Last; not an interconnect */
-};
-
 /**
  * struct ipa_interconnect_data - description of IPA interconnect bandwidths
  * @name:		Interconnect name (matches interconnect-name in DT)
@@ -281,11 +273,13 @@ struct ipa_interconnect_data {
 /**
  * struct ipa_clock_data - description of IPA clock and interconnect rates
  * @core_clock_rate:	Core clock rate (Hz)
- * @interconnect:	Array of interconnect bandwidth parameters
+ * @interconnect_count:	Number of entries in the interconnect_data array
+ * @interconnect_data:	IPA interconnect configuration data
  */
 struct ipa_clock_data {
 	u32 core_clock_rate;
-	struct ipa_interconnect_data interconnect[IPA_INTERCONNECT_COUNT];
+	u32 interconnect_count;		/* # entries in interconnect_data[] */
+	const struct ipa_interconnect_data *interconnect_data;
 };
 
 /**