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[73.185.129.58]) by smtp.gmail.com with ESMTPSA id u10sm555500iow.38.2020.06.29.14.49.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Jun 2020 14:49:23 -0700 (PDT) From: Alex Elder To: davem@davemloft.net, kuba@kernel.org Cc: evgreen@chromium.org, subashab@codeaurora.org, cpratapa@codeaurora.org, bjorn.andersson@linaro.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 1/5] net: ipa: head-of-line block registers are RX only Date: Mon, 29 Jun 2020 16:49:15 -0500 Message-Id: <20200629214919.1196017-2-elder@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200629214919.1196017-1-elder@linaro.org> References: <20200629214919.1196017-1-elder@linaro.org> MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The INIT_HOL_BLOCK_EN and INIT_HOL_BLOCK_TIMER endpoint registers are only valid for RX endpoints. Have ipa_endpoint_modem_hol_block_clear_all() skip writing these registers for TX endpoints. Signed-off-by: Alex Elder --- drivers/net/ipa/ipa_endpoint.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) -- 2.25.1 diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c index 9f50d0d11704..3f5a41fc1997 100644 --- a/drivers/net/ipa/ipa_endpoint.c +++ b/drivers/net/ipa/ipa_endpoint.c @@ -642,6 +642,8 @@ static int ipa_endpoint_init_hol_block_timer(struct ipa_endpoint *endpoint, u32 offset; u32 val; + /* assert(!endpoint->toward_ipa); */ + /* XXX We'll fix this when the register definition is clear */ if (microseconds) { struct device *dev = &ipa->pdev->dev; @@ -671,6 +673,8 @@ ipa_endpoint_init_hol_block_enable(struct ipa_endpoint *endpoint, bool enable) u32 offset; u32 val; + /* assert(!endpoint->toward_ipa); */ + val = u32_encode_bits(enable ? 1 : 0, HOL_BLOCK_EN_FMASK); offset = IPA_REG_ENDP_INIT_HOL_BLOCK_EN_N_OFFSET(endpoint_id); iowrite32(val, endpoint->ipa->reg_virt + offset); @@ -683,7 +687,7 @@ void ipa_endpoint_modem_hol_block_clear_all(struct ipa *ipa) for (i = 0; i < IPA_ENDPOINT_MAX; i++) { struct ipa_endpoint *endpoint = &ipa->endpoint[i]; - if (endpoint->ee_id != GSI_EE_MODEM) + if (endpoint->toward_ipa || endpoint->ee_id != GSI_EE_MODEM) continue; (void)ipa_endpoint_init_hol_block_timer(endpoint, 0);