Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754139AbcDUSQe (ORCPT ); Thu, 21 Apr 2016 14:16:34 -0400 Received: from mga11.intel.com ([192.55.52.93]:51550 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752149AbcDUSQA (ORCPT ); Thu, 21 Apr 2016 14:16:00 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,513,1455004800"; d="scan'208";a="789549706" From: Andy Shevchenko To: Tejun Heo , linux-ide@vger.kernel.org, Rob Herring , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, Christian Lamparter , =?UTF-8?q?M=C3=A5ns=20Rullg=C3=A5rd?= , Julian Margetson Subject: [PATCH v1 10/23] ata: sata_dwc_460ex: add phy support Date: Thu, 21 Apr 2016 21:15:31 +0300 Message-Id: <1461262544-115408-11-git-send-email-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.8.0.rc3 In-Reply-To: <1461262544-115408-1-git-send-email-andriy.shevchenko@linux.intel.com> References: <1461262544-115408-1-git-send-email-andriy.shevchenko@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2853 Lines: 105 From: Mans Rullgard This adds support for powering on an optional PHY when activating the device. Signed-off-by: Mans Rullgard --- drivers/ata/Kconfig | 1 + drivers/ata/sata_dwc_460ex.c | 22 ++++++++++++++++++++++ 2 files changed, 23 insertions(+) diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index ede126d..41b0725 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -313,6 +313,7 @@ config ATA_PIIX config SATA_DWC tristate "DesignWare Cores SATA support" + select GENERIC_PHY help This option enables support for the on-chip SATA controller of the AppliedMicro processor 460EX. diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c index daaa8a6..4d23fbd 100644 --- a/drivers/ata/sata_dwc_460ex.c +++ b/drivers/ata/sata_dwc_460ex.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include @@ -145,6 +146,7 @@ struct sata_dwc_device { struct ata_host *host; u8 __iomem *reg_base; struct sata_dwc_regs *sata_dwc_regs; /* DW Synopsys SATA specific */ + struct phy *phy; #ifdef CONFIG_SATA_DWC_OLD_DMA struct dw_dma_chip *dma; #endif @@ -948,6 +950,10 @@ static int sata_dwc_port_start(struct ata_port *ap) if (err) goto CLEANUP_ALLOC; + err = phy_power_on(hsdev->phy); + if (err) + goto CLEANUP_ALLOC; + for (i = 0; i < SATA_DWC_QCMD_MAX; i++) hsdevp->cmd_issued[i] = SATA_DWC_CMD_ISSUED_NOT; @@ -983,11 +989,13 @@ CLEANUP: static void sata_dwc_port_stop(struct ata_port *ap) { struct sata_dwc_device_port *hsdevp = HSDEVP_FROM_AP(ap); + struct sata_dwc_device *hsdev = HSDEV_FROM_AP(ap); dev_dbg(ap->dev, "%s: ap->id = %d\n", __func__, ap->print_id); dmaengine_terminate_all(hsdevp->chan); dma_release_channel(hsdevp->chan); + phy_power_off(hsdev->phy); kfree(hsdevp); ap->private_data = NULL; @@ -1323,6 +1331,17 @@ static int sata_dwc_probe(struct platform_device *ofdev) } #endif + hsdev->phy = devm_phy_optional_get(hsdev->dev, "sata-phy"); + if (IS_ERR(hsdev->phy)) { + err = PTR_ERR(hsdev->phy); + hsdev->phy = NULL; + goto error_out; + } + + err = phy_init(hsdev->phy); + if (err) + goto error_out; + /* * Now, register with libATA core, this will also initiate the * device discovery process, invoking our port_start() handler & @@ -1336,6 +1355,7 @@ static int sata_dwc_probe(struct platform_device *ofdev) return 0; error_out: + phy_exit(hsdev->phy); iounmap(base); return err; } @@ -1348,6 +1368,8 @@ static int sata_dwc_remove(struct platform_device *ofdev) ata_host_detach(host); + phy_exit(hsdev->phy); + #ifdef CONFIG_SATA_DWC_OLD_DMA /* Free SATA DMA resources */ sata_dwc_dma_exit_old(hsdev); -- 2.8.0.rc3