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[90.63.244.31]) by smtp.googlemail.com with ESMTPSA id v5-20020a5d59c5000000b002257fd37877sm15556709wry.6.2022.09.01.05.57.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Sep 2022 05:57:30 -0700 (PDT) From: Corentin Labbe To: heiko@sntech.de, herbert@gondor.apana.org.au, ardb@kernel.org, davem@davemloft.net, krzysztof.kozlowski+dt@linaro.org, mturquette@baylibre.com, robh+dt@kernel.org, sboyd@kernel.org Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, Corentin Labbe Subject: [PATCH v9 14/33] crypto: rockchip: handle reset also in PM Date: Thu, 1 Sep 2022 12:56:51 +0000 Message-Id: <20220901125710.3733083-15-clabbe@baylibre.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220901125710.3733083-1-clabbe@baylibre.com> References: <20220901125710.3733083-1-clabbe@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220901_055731_736374_988EF879 X-CRM114-Status: GOOD ( 16.12 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org reset could be handled by PM functions. We keep the initial reset pulse to be sure the hw is a know device state after probe. Signed-off-by: Corentin Labbe --- drivers/crypto/rockchip/rk3288_crypto.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c index d9258b9e71b3..399829ef92e0 100644 --- a/drivers/crypto/rockchip/rk3288_crypto.c +++ b/drivers/crypto/rockchip/rk3288_crypto.c @@ -74,14 +74,23 @@ static int rk_crypto_pm_suspend(struct device *dev) struct rk_crypto_info *rkdev = dev_get_drvdata(dev); rk_crypto_disable_clk(rkdev); + reset_control_assert(rkdev->rst); + return 0; } static int rk_crypto_pm_resume(struct device *dev) { struct rk_crypto_info *rkdev = dev_get_drvdata(dev); + int ret; + + ret = rk_crypto_enable_clk(rkdev); + if (ret) + return ret; + + reset_control_deassert(rkdev->rst); + return 0; - return rk_crypto_enable_clk(rkdev); } static const struct dev_pm_ops rk_crypto_pm_ops = { @@ -222,13 +231,6 @@ static void rk_crypto_unregister(void) } } -static void rk_crypto_action(void *data) -{ - struct rk_crypto_info *crypto_info = data; - - reset_control_assert(crypto_info->rst); -} - static const struct of_device_id crypto_of_id_table[] = { { .compatible = "rockchip,rk3288-crypto" }, {} @@ -258,10 +260,6 @@ static int rk_crypto_probe(struct platform_device *pdev) usleep_range(10, 20); reset_control_deassert(crypto_info->rst); - err = devm_add_action_or_reset(dev, rk_crypto_action, crypto_info); - if (err) - goto err_crypto; - crypto_info->reg = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(crypto_info->reg)) { err = PTR_ERR(crypto_info->reg); -- 2.35.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel