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([103.51.72.143]) by smtp.gmail.com with ESMTPSA id g11sm705676pfo.166.2021.08.16.21.18.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Aug 2021 21:18:23 -0700 (PDT) From: Anand Moon To: linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Cc: Anand Moon , Matt Corallo , Martin Blumenstingl , Rob Herring , Neil Armstrong , Kevin Hilman , Jerome Brunet , Kishon Vijay Abraham I , Vinod Koul , Emiliano Ingrassia , Brian Kim Subject: [PATCHv3 5/6] phy: amlogic: meson8b-usb2: Power off the PHY by putting it into reset mode Date: Tue, 17 Aug 2021 09:45:39 +0530 Message-Id: <20210817041548.1276-6-linux.amoon@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210817041548.1276-1-linux.amoon@gmail.com> References: <20210817041548.1276-1-linux.amoon@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210816_211829_099564_48C4771D X-CRM114-Status: GOOD ( 10.86 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Power off the PHY by putting it into reset mode. Cc: Martin Blumenstingl Acked-by: Martin Blumenstingl Signed-off-by: Anand Moon --- v2 - None --- drivers/phy/amlogic/phy-meson8b-usb2.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/phy/amlogic/phy-meson8b-usb2.c b/drivers/phy/amlogic/phy-meson8b-usb2.c index 03c061dd5f0d..2aad45c55494 100644 --- a/drivers/phy/amlogic/phy-meson8b-usb2.c +++ b/drivers/phy/amlogic/phy-meson8b-usb2.c @@ -219,6 +219,10 @@ static int phy_meson8b_usb2_power_off(struct phy *phy) clk_disable_unprepare(priv->clk_usb); clk_disable_unprepare(priv->clk_usb_general); + /* power off the PHY by putting it into reset mode */ + regmap_update_bits(priv->regmap, REG_CTRL, REG_CTRL_POWER_ON_RESET, + REG_CTRL_POWER_ON_RESET); + return 0; }