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[71.163.245.5]) by smtp.googlemail.com with ESMTPSA id g70sm127290qke.8.2020.11.19.07.52.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Nov 2020 07:52:38 -0800 (PST) From: Thara Gopinath To: agross@kernel.org, bjorn.andersson@linaro.org, herbert@gondor.apana.org.au, davem@davemloft.net, robh+dt@kernel.org, sboyd@kernel.org, mturquette@baylibre.com Cc: linux-arm-msm@vger.kernel.org, linux-crypto@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Subject: [Patch v2 3/6] drivers: crypto: qce: Enable support for crypto engine on sdm845. Date: Thu, 19 Nov 2020 10:52:30 -0500 Message-Id: <20201119155233.3974286-4-thara.gopinath@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201119155233.3974286-1-thara.gopinath@linaro.org> References: <20201119155233.3974286-1-thara.gopinath@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support Qualcomm Crypto Engine accelerated encryption and authentication algorithms on sdm845. Reviewed-by: Bjorn Andersson Signed-off-by: Thara Gopinath --- drivers/crypto/qce/core.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/qce/core.c b/drivers/crypto/qce/core.c index ea616b7259ae..67c3ca13e55b 100644 --- a/drivers/crypto/qce/core.c +++ b/drivers/crypto/qce/core.c @@ -160,7 +160,21 @@ static int qce_check_version(struct qce_device *qce) return -ENODEV; qce->burst_size = QCE_BAM_BURST_SIZE; - qce->pipe_pair_id = 1; + + /* + * Rx and tx pipes are treated as a pair inside CE. + * Pipe pair number depends on the actual BAM dma pipe + * that is used for transfers. The BAM dma pipes are passed + * from the device tree and used to derive the pipe pair + * id in the CE driver as follows. + * BAM dma pipes(rx, tx) CE pipe pair id + * 0,1 0 + * 2,3 1 + * 4,5 2 + * 6,7 3 + * ... + */ + qce->pipe_pair_id = qce->dma.rxchan->chan_id >> 1; dev_dbg(qce->dev, "Crypto device found, version %d.%d.%d\n", major, minor, step); @@ -261,6 +275,7 @@ static int qce_crypto_remove(struct platform_device *pdev) static const struct of_device_id qce_crypto_of_match[] = { { .compatible = "qcom,crypto-v5.1", }, + { .compatible = "qcom,crypto-v5.4", }, {} }; MODULE_DEVICE_TABLE(of, qce_crypto_of_match); -- 2.25.1