From patchwork Tue Apr 25 15:39:27 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Woods X-Patchwork-Id: 9698593 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id D698A60249 for ; Tue, 25 Apr 2017 15:40:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C90132815E for ; Tue, 25 Apr 2017 15:40:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BCC8228437; Tue, 25 Apr 2017 15:40:20 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D7B832815E for ; Tue, 25 Apr 2017 15:40:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1950182AbdDYPkN (ORCPT ); Tue, 25 Apr 2017 11:40:13 -0400 Received: from mail-il-dmz.mellanox.com ([193.47.165.129]:51920 "EHLO mellanox.co.il" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1950310AbdDYPj5 (ORCPT ); Tue, 25 Apr 2017 11:39:57 -0400 Received: from Internal Mail-Server by MTLPINE1 (envelope-from dwoods@mellanox.com) with ESMTPS (AES256-SHA encrypted); 25 Apr 2017 18:39:51 +0300 Received: from ld-2.internal.tilera.com (ld-2.internal.tilera.com [10.15.7.42]) by mtbu-labmail01.internal.tilera.com (8.14.4/8.14.4) with ESMTP id v3PFdoPX003642; Tue, 25 Apr 2017 11:39:50 -0400 Received: (from dwoods@localhost) by ld-2.internal.tilera.com (8.14.4/8.14.4/Submit) id v3PFdlEW019414; Tue, 25 Apr 2017 11:39:47 -0400 From: David Woods To: ulf.hansson@linaro.org, jh80.chung@samsung.com, shawn.lin@rock-chips.com, hkallweit1@gmail.com, adrian.hunter@intel.com, cmetcalf@mellanox.com, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org Cc: David Woods Subject: [PATCH] Use device_property_read instead of of_property_read in the dw_mmc driver Date: Tue, 25 Apr 2017 11:39:27 -0400 Message-Id: <1493134767-19170-1-git-send-email-dwoods@mellanox.com> X-Mailer: git-send-email 2.7.2 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Using the device_property interfaces allows the dw_mmc driver to work on platforms which run on either device tree or ACPI. Signed-off-by: David Woods Reviewed-by: Chris Metcalf --- drivers/mmc/core/host.c | 72 +++++++++++++++++++++++------------------------ drivers/mmc/host/dw_mmc.c | 24 ++++++++-------- 2 files changed, 47 insertions(+), 49 deletions(-) diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 3f8c85d..d2c059e 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -176,19 +176,17 @@ static void mmc_retune_timer(unsigned long data) */ int mmc_of_parse(struct mmc_host *host) { - struct device_node *np; + struct device *dev = host->parent; u32 bus_width; int ret; bool cd_cap_invert, cd_gpio_invert = false; bool ro_cap_invert, ro_gpio_invert = false; - if (!host->parent || !host->parent->of_node) + if (!dev) return 0; - np = host->parent->of_node; - /* "bus-width" is translated to MMC_CAP_*_BIT_DATA flags */ - if (of_property_read_u32(np, "bus-width", &bus_width) < 0) { + if (device_property_read_u32(dev, "bus-width", &bus_width) < 0) { dev_dbg(host->parent, "\"bus-width\" property is missing, assuming 1 bit.\n"); bus_width = 1; @@ -210,7 +208,7 @@ int mmc_of_parse(struct mmc_host *host) } /* f_max is obtained from the optional "max-frequency" property */ - of_property_read_u32(np, "max-frequency", &host->f_max); + device_property_read_u32(dev, "max-frequency", &host->f_max); /* * Configure CD and WP pins. They are both by default active low to @@ -225,12 +223,12 @@ int mmc_of_parse(struct mmc_host *host) */ /* Parse Card Detection */ - if (of_property_read_bool(np, "non-removable")) { + if (device_property_read_bool(dev, "non-removable")) { host->caps |= MMC_CAP_NONREMOVABLE; } else { - cd_cap_invert = of_property_read_bool(np, "cd-inverted"); + cd_cap_invert = device_property_read_bool(dev, "cd-inverted"); - if (of_property_read_bool(np, "broken-cd")) + if (device_property_read_bool(dev, "broken-cd")) host->caps |= MMC_CAP_NEEDS_POLL; ret = mmc_gpiod_request_cd(host, "cd", 0, true, @@ -256,7 +254,7 @@ int mmc_of_parse(struct mmc_host *host) } /* Parse Write Protection */ - ro_cap_invert = of_property_read_bool(np, "wp-inverted"); + ro_cap_invert = device_property_read_bool(dev, "wp-inverted"); ret = mmc_gpiod_request_ro(host, "wp", 0, false, 0, &ro_gpio_invert); if (!ret) @@ -264,64 +262,64 @@ int mmc_of_parse(struct mmc_host *host) else if (ret != -ENOENT && ret != -ENOSYS) return ret; - if (of_property_read_bool(np, "disable-wp")) + if (device_property_read_bool(dev, "disable-wp")) host->caps2 |= MMC_CAP2_NO_WRITE_PROTECT; /* See the comment on CD inversion above */ if (ro_cap_invert ^ ro_gpio_invert) host->caps2 |= MMC_CAP2_RO_ACTIVE_HIGH; - if (of_property_read_bool(np, "cap-sd-highspeed")) + if (device_property_read_bool(dev, "cap-sd-highspeed")) host->caps |= MMC_CAP_SD_HIGHSPEED; - if (of_property_read_bool(np, "cap-mmc-highspeed")) + if (device_property_read_bool(dev, "cap-mmc-highspeed")) host->caps |= MMC_CAP_MMC_HIGHSPEED; - if (of_property_read_bool(np, "sd-uhs-sdr12")) + if (device_property_read_bool(dev, "sd-uhs-sdr12")) host->caps |= MMC_CAP_UHS_SDR12; - if (of_property_read_bool(np, "sd-uhs-sdr25")) + if (device_property_read_bool(dev, "sd-uhs-sdr25")) host->caps |= MMC_CAP_UHS_SDR25; - if (of_property_read_bool(np, "sd-uhs-sdr50")) + if (device_property_read_bool(dev, "sd-uhs-sdr50")) host->caps |= MMC_CAP_UHS_SDR50; - if (of_property_read_bool(np, "sd-uhs-sdr104")) + if (device_property_read_bool(dev, "sd-uhs-sdr104")) host->caps |= MMC_CAP_UHS_SDR104; - if (of_property_read_bool(np, "sd-uhs-ddr50")) + if (device_property_read_bool(dev, "sd-uhs-ddr50")) host->caps |= MMC_CAP_UHS_DDR50; - if (of_property_read_bool(np, "cap-power-off-card")) + if (device_property_read_bool(dev, "cap-power-off-card")) host->caps |= MMC_CAP_POWER_OFF_CARD; - if (of_property_read_bool(np, "cap-mmc-hw-reset")) + if (device_property_read_bool(dev, "cap-mmc-hw-reset")) host->caps |= MMC_CAP_HW_RESET; - if (of_property_read_bool(np, "cap-sdio-irq")) + if (device_property_read_bool(dev, "cap-sdio-irq")) host->caps |= MMC_CAP_SDIO_IRQ; - if (of_property_read_bool(np, "full-pwr-cycle")) + if (device_property_read_bool(dev, "full-pwr-cycle")) host->caps2 |= MMC_CAP2_FULL_PWR_CYCLE; - if (of_property_read_bool(np, "keep-power-in-suspend")) + if (device_property_read_bool(dev, "keep-power-in-suspend")) host->pm_caps |= MMC_PM_KEEP_POWER; - if (of_property_read_bool(np, "wakeup-source") || - of_property_read_bool(np, "enable-sdio-wakeup")) /* legacy */ + if (device_property_read_bool(dev, "wakeup-source") || + device_property_read_bool(dev, "enable-sdio-wakeup")) /* legacy */ host->pm_caps |= MMC_PM_WAKE_SDIO_IRQ; - if (of_property_read_bool(np, "mmc-ddr-3_3v")) + if (device_property_read_bool(dev, "mmc-ddr-3_3v")) host->caps |= MMC_CAP_3_3V_DDR; - if (of_property_read_bool(np, "mmc-ddr-1_8v")) + if (device_property_read_bool(dev, "mmc-ddr-1_8v")) host->caps |= MMC_CAP_1_8V_DDR; - if (of_property_read_bool(np, "mmc-ddr-1_2v")) + if (device_property_read_bool(dev, "mmc-ddr-1_2v")) host->caps |= MMC_CAP_1_2V_DDR; - if (of_property_read_bool(np, "mmc-hs200-1_8v")) + if (device_property_read_bool(dev, "mmc-hs200-1_8v")) host->caps2 |= MMC_CAP2_HS200_1_8V_SDR; - if (of_property_read_bool(np, "mmc-hs200-1_2v")) + if (device_property_read_bool(dev, "mmc-hs200-1_2v")) host->caps2 |= MMC_CAP2_HS200_1_2V_SDR; - if (of_property_read_bool(np, "mmc-hs400-1_8v")) + if (device_property_read_bool(dev, "mmc-hs400-1_8v")) host->caps2 |= MMC_CAP2_HS400_1_8V | MMC_CAP2_HS200_1_8V_SDR; - if (of_property_read_bool(np, "mmc-hs400-1_2v")) + if (device_property_read_bool(dev, "mmc-hs400-1_2v")) host->caps2 |= MMC_CAP2_HS400_1_2V | MMC_CAP2_HS200_1_2V_SDR; - if (of_property_read_bool(np, "mmc-hs400-enhanced-strobe")) + if (device_property_read_bool(dev, "mmc-hs400-enhanced-strobe")) host->caps2 |= MMC_CAP2_HS400_ES; - if (of_property_read_bool(np, "no-sdio")) + if (device_property_read_bool(dev, "no-sdio")) host->caps2 |= MMC_CAP2_NO_SDIO; - if (of_property_read_bool(np, "no-sd")) + if (device_property_read_bool(dev, "no-sd")) host->caps2 |= MMC_CAP2_NO_SD; - if (of_property_read_bool(np, "no-mmc")) + if (device_property_read_bool(dev, "no-mmc")) host->caps2 |= MMC_CAP2_NO_MMC; - host->dsr_req = !of_property_read_u32(np, "dsr", &host->dsr); + host->dsr_req = !device_property_read_u32(dev, "dsr", &host->dsr); if (host->dsr_req && (host->dsr & ~0xffff)) { dev_err(host->parent, "device tree specified broken value for DSR: 0x%x, ignoring\n", diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 8718432..3728c59 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -2641,8 +2641,8 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id) host->slot[id] = slot; mmc->ops = &dw_mci_ops; - if (of_property_read_u32_array(host->dev->of_node, - "clock-freq-min-max", freq, 2)) { + if (device_property_read_u32_array(host->dev, "clock-freq-min-max", + freq, 2)) { mmc->f_min = DW_MCI_FREQ_MIN; mmc->f_max = DW_MCI_FREQ_MAX; } else { @@ -2742,7 +2742,6 @@ static void dw_mci_init_dma(struct dw_mci *host) { int addr_config; struct device *dev = host->dev; - struct device_node *np = dev->of_node; /* * Check tansfer mode from HCON[17:16] @@ -2803,8 +2802,9 @@ static void dw_mci_init_dma(struct dw_mci *host) dev_info(host->dev, "Using internal DMA controller.\n"); } else { /* TRANS_MODE_EDMAC: check dma bindings again */ - if ((of_property_count_strings(np, "dma-names") < 0) || - (!of_find_property(np, "dmas", NULL))) { + if ((device_property_read_string_array(dev, "dma-names", + NULL, 0) < 0) || + !device_property_present(dev, "dmas")) { goto no_dma; } host->dma_ops = &dw_mci_edmac_ops; @@ -2964,7 +2964,6 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) { struct dw_mci_board *pdata; struct device *dev = host->dev; - struct device_node *np = dev->of_node; const struct dw_mci_drv_data *drv_data = host->drv_data; int ret; u32 clock_frequency; @@ -2981,20 +2980,21 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) } /* find out number of slots supported */ - of_property_read_u32(np, "num-slots", &pdata->num_slots); + device_property_read_u32(dev, "num-slots", &pdata->num_slots); - if (of_property_read_u32(np, "fifo-depth", &pdata->fifo_depth)) + if (device_property_read_u32(dev, "fifo-depth", &pdata->fifo_depth)) dev_info(dev, "fifo-depth property not found, using value of FIFOTH register as default\n"); - of_property_read_u32(np, "card-detect-delay", &pdata->detect_delay_ms); + device_property_read_u32(dev, "card-detect-delay", + &pdata->detect_delay_ms); - of_property_read_u32(np, "data-addr", &host->data_addr_override); + device_property_read_u32(dev, "data-addr", &host->data_addr_override); - if (of_get_property(np, "fifo-watermark-aligned", NULL)) + if (device_property_present(dev, "fifo-watermark-aligned")) host->wm_aligned = true; - if (!of_property_read_u32(np, "clock-frequency", &clock_frequency)) + if (!device_property_read_u32(dev, "clock-frequency", &clock_frequency)) pdata->bus_hz = clock_frequency; if (drv_data && drv_data->parse_dt) {