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[73.185.129.58]) by smtp.gmail.com with ESMTPSA id r4sm11089591ilj.43.2020.11.02.09.54.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Nov 2020 09:54:09 -0800 (PST) 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 4/6] net: ipa: use version in gsi_channel_reset() Date: Mon, 2 Nov 2020 11:53:58 -0600 Message-Id: <20201102175400.6282-5-elder@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20201102175400.6282-1-elder@linaro.org> References: <20201102175400.6282-1-elder@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org A quirk of IPA v3.5.1 requires a channel reset on an RX channel to be performed twice. Use the IPA version in gsi_channel_reset() rather than the passed-in legacy flag to determine that. This is actually a bug fix, because this double reset is supposed to occur independent of whether we're enabling the doorbell engine. Now they will be independent. Signed-off-by: Alex Elder --- drivers/net/ipa/gsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c index eae8ed83c1004..729ef712a10fd 100644 --- a/drivers/net/ipa/gsi.c +++ b/drivers/net/ipa/gsi.c @@ -840,7 +840,7 @@ void gsi_channel_reset(struct gsi *gsi, u32 channel_id, bool legacy) gsi_channel_reset_command(channel); /* Due to a hardware quirk we may need to reset RX channels twice. */ - if (legacy && !channel->toward_ipa) + if (gsi->version == IPA_VERSION_3_5_1 && !channel->toward_ipa) gsi_channel_reset_command(channel); gsi_channel_program(channel, legacy);