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net: ipa: mode register is TX only 

The INIT_MODE endpoint configuration register is only valid for TX
endpoints.  Rather than writing a zero to that register for RX
endpoints, avoid writing the register at all.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alex Elder 2020-06-30 08:33:02 -05:00 committed by David S. Miller
parent 9b63f09378
commit 00b9102afa
1 changed files with 3 additions and 3 deletions
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6
drivers/net/ipa/ipa_endpoint.c
View File

@ -541,7 +541,7 @@ static void ipa_endpoint_init_mode(struct ipa_endpoint *endpoint)
u32 offset = IPA_REG_ENDP_INIT_MODE_N_OFFSET(endpoint->endpoint_id);
u32 val;
if (endpoint->toward_ipa && endpoint->data->dma_mode) {
if (endpoint->data->dma_mode) {
enum ipa_endpoint_name name = endpoint->data->dma_endpoint;
u32 dma_endpoint_id;
@ -552,7 +552,7 @@ static void ipa_endpoint_init_mode(struct ipa_endpoint *endpoint)
} else {
val = u32_encode_bits(IPA_BASIC, MODE_FMASK);
}
/* Other bitfields unspecified (and 0) */
/* All other bits unspecified (and 0) */
iowrite32(val, endpoint->ipa->reg_virt + offset);
}
@ -1300,6 +1300,7 @@ static void ipa_endpoint_program(struct ipa_endpoint *endpoint)
ipa_endpoint_init_aggr(endpoint);
ipa_endpoint_init_deaggr(endpoint);
ipa_endpoint_init_seq(endpoint);
ipa_endpoint_init_mode(endpoint);
} else {
if (endpoint->ipa->version == IPA_VERSION_3_5_1)
(void)ipa_endpoint_program_suspend(endpoint, false);
@ -1309,7 +1310,6 @@ static void ipa_endpoint_program(struct ipa_endpoint *endpoint)
}
ipa_endpoint_init_cfg(endpoint);
ipa_endpoint_init_hdr(endpoint);
ipa_endpoint_init_mode(endpoint);
ipa_endpoint_status(endpoint);
}