From mboxrd@z Thu Jan 1 00:00:00 1970 From: Adrian Hunter Subject: Re: [RFC PATCH 3/7] mmc: sdhci: Add callback to set bus mode Date: Tue, 15 Aug 2017 10:38:24 +0300 Message-ID: References: <20170807160142.12134-1-kishon@ti.com> <20170807160142.12134-4-kishon@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20170807160142.12134-4-kishon@ti.com> Content-Language: en-US Sender: linux-mmc-owner@vger.kernel.org To: Kishon Vijay Abraham I , Ulf Hansson , Tony Lindgren , Rob Herring Cc: nsekhar@ti.com, linux-omap@vger.kernel.org, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org On 07/08/17 19:01, Kishon Vijay Abraham I wrote: > Add callback to set bus mode in sdhci library so that the > controller driver can perform any bus mode specific configurations > in the callback function. A quirk isn't needed. Just hook ->set_ios() e.g. host->mmc_host_ops.set_ios = sdhci_omap_set_ios; Then sdhci_omap_set_ios() can call sdhci_set_ios() and then do the bus mode setting. > > Signed-off-by: Kishon Vijay Abraham I > --- > drivers/mmc/host/sdhci.c | 3 +++ > drivers/mmc/host/sdhci.h | 1 + > 2 files changed, 4 insertions(+) > > diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c > index fff0baadbc3e..d5050ec42481 100644 > --- a/drivers/mmc/host/sdhci.c > +++ b/drivers/mmc/host/sdhci.c > @@ -1747,6 +1747,9 @@ void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) > if (host->quirks & SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS) > sdhci_do_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA); > > + if (host->ops->set_bus_mode) > + host->ops->set_bus_mode(host, ios->bus_mode); > + > mmiowb(); > } > EXPORT_SYMBOL_GPL(sdhci_set_ios); > diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h > index d778034e324d..39c7a2723906 100644 > --- a/drivers/mmc/host/sdhci.h > +++ b/drivers/mmc/host/sdhci.h > @@ -583,6 +583,7 @@ struct sdhci_ops { > void (*adma_workaround)(struct sdhci_host *host, u32 intmask); > void (*card_event)(struct sdhci_host *host); > void (*voltage_switch)(struct sdhci_host *host); > + void (*set_bus_mode)(struct sdhci_host *host, unsigned int mode); > }; > > #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS >