net: ipa: start generalizing "ipa_reg"

IPA register definitions have evolved with each new version.  The
changes required to support more than 32 endpoints in IPA v5.0 made
it best to define a unified mechanism for defining registers and
their fields.

GSI register definitions, meanwhile, have remained fairly stable.
And even as the total number of IPA endpoints goes beyond 32, the
number of GSI channels on a given EE that underly endpoints still
remains 32 or less.

Despite that, GSI v3.0 (which is used with IPA v5.0) extends the
number of channels (and events) it supports to be about 256, and as
a result, many GSI register definitions must change significantly.
To address this, we'll use the same "ipa_reg" mechanism to define
the GSI registers.

As a first step in generalizing the "ipa_reg" to also support GSI
registers, isolate the definitions of the "ipa_reg" and "ipa_regs"
structure types (and some supporting macros) into a new header file,
and remove the "ipa_" and "IPA_" from symbol names.

Separate the IPA register ID validity checking from the generic
check that a register ID is in range.  Aside from that, this is
intended to have no functional effect on the code.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/net/ipa/ipa_mem.c b/drivers/net/ipa/ipa_mem.c
index a07776e20cb0..a6efeed25376 100644
--- a/drivers/net/ipa/ipa_mem.c
+++ b/drivers/net/ipa/ipa_mem.c
@@ -75,7 +75,7 @@ ipa_mem_zero_region_add(struct gsi_trans *trans, enum ipa_mem_id mem_id)
 int ipa_mem_setup(struct ipa *ipa)
 {
 	dma_addr_t addr = ipa->zero_addr;
-	const struct ipa_reg *reg;
+	const struct reg *reg;
 	const struct ipa_mem *mem;
 	struct gsi_trans *trans;
 	u32 offset;
@@ -318,8 +318,8 @@ static bool ipa_mem_size_valid(struct ipa *ipa)
 int ipa_mem_config(struct ipa *ipa)
 {
 	struct device *dev = &ipa->pdev->dev;
-	const struct ipa_reg *reg;
 	const struct ipa_mem *mem;
+	const struct reg *reg;
 	dma_addr_t addr;
 	u32 mem_size;
 	void *virt;