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Miller" , Florian Fainelli , Andrew Lunn , Rob Herring , Mark Rutland , Ray Jui , Scott Branden , Catalin Marinas , Will Deacon Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, Arun Parameswaran Subject: [PATCH v4 8/8] net: phy: Add pm support to Broadcom iProc mdio mux driver Date: Wed, 1 Aug 2018 17:53:53 -0700 Message-Id: <1533171233-14557-9-git-send-email-arun.parameswaran@broadcom.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1533171233-14557-1-git-send-email-arun.parameswaran@broadcom.com> References: <1533171233-14557-1-git-send-email-arun.parameswaran@broadcom.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support for suspend and resume to the Broadcom iProc mdio mux driver. Signed-off-by: Arun Parameswaran Reviewed-by: Florian Fainelli --- drivers/net/phy/mdio-mux-bcm-iproc.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/net/phy/mdio-mux-bcm-iproc.c b/drivers/net/phy/mdio-mux-bcm-iproc.c index c608e3c4..518f4c7 100644 --- a/drivers/net/phy/mdio-mux-bcm-iproc.c +++ b/drivers/net/phy/mdio-mux-bcm-iproc.c @@ -286,6 +286,32 @@ static int mdio_mux_iproc_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM_SLEEP +static int mdio_mux_iproc_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct iproc_mdiomux_desc *md = platform_get_drvdata(pdev); + + clk_disable_unprepare(md->core_clk); + + return 0; +} + +static int mdio_mux_iproc_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct iproc_mdiomux_desc *md = platform_get_drvdata(pdev); + + clk_prepare_enable(md->core_clk); + mdio_mux_iproc_config(md); + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(mdio_mux_iproc_pm_ops, + mdio_mux_iproc_suspend, mdio_mux_iproc_resume); + static const struct of_device_id mdio_mux_iproc_match[] = { { .compatible = "brcm,mdio-mux-iproc", @@ -298,6 +324,7 @@ static int mdio_mux_iproc_remove(struct platform_device *pdev) .driver = { .name = "mdio-mux-iproc", .of_match_table = mdio_mux_iproc_match, + .pm = &mdio_mux_iproc_pm_ops, }, .probe = mdio_mux_iproc_probe, .remove = mdio_mux_iproc_remove, -- 1.9.1