From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ulf Hansson Subject: Re: [PATCH] mmc: tmio: make sure SDIO gets reinitialized after resume Date: Tue, 30 May 2017 11:55:18 +0200 Message-ID: References: <20170523133408.11651-1-wsa+renesas@sang-engineering.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: In-Reply-To: <20170523133408.11651-1-wsa+renesas@sang-engineering.com> Sender: linux-renesas-soc-owner@vger.kernel.org To: Wolfram Sang Cc: "linux-mmc@vger.kernel.org" , Linux-Renesas , Yoshihiro Shimoda , Masaharu Hayakawa List-Id: linux-mmc@vger.kernel.org On 23 May 2017 at 15:34, Wolfram Sang wrote: > To achieve that, we set the registers in the generic HW reset routine > which gets called at both, init and resume. We also make sure to move > SDIO initialization before reset gets called in probe(). > > Signed-off-by: Wolfram Sang > Tested-by: Masaharu Hayakawa Thanks, applied for next! Kind regards Uffe > --- > > Changes since RFT: > * added tag from Hayakawa-san (thanks!) > * rebased to mmc/next (on top of the DMA refactor series) > > drivers/mmc/host/tmio_mmc_core.c | 17 ++++++++++------- > 1 file changed, 10 insertions(+), 7 deletions(-) > > diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c > index e1ad461c4b8c8f..ed40681253497a 100644 > --- a/drivers/mmc/host/tmio_mmc_core.c > +++ b/drivers/mmc/host/tmio_mmc_core.c > @@ -265,6 +265,12 @@ static void tmio_mmc_reset(struct tmio_mmc_host *host) > if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG) > sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0001); > msleep(10); > + > + if (host->pdata->flags & TMIO_MMC_SDIO_IRQ) { > + sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, host->sdio_irq_mask); > + sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0001); > + } > + > } > > static void tmio_mmc_reset_work(struct work_struct *work) > @@ -1280,6 +1286,10 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host, > if (_host->native_hotplug) > pm_runtime_get_noresume(&pdev->dev); > > + _host->sdio_irq_enabled = false; > + if (pdata->flags & TMIO_MMC_SDIO_IRQ) > + _host->sdio_irq_mask = TMIO_SDIO_MASK_ALL; > + > tmio_mmc_clk_stop(_host); > tmio_mmc_reset(_host); > > @@ -1296,13 +1306,6 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host, > > _host->sdcard_irq_mask &= ~irq_mask; > > - _host->sdio_irq_enabled = false; > - if (pdata->flags & TMIO_MMC_SDIO_IRQ) { > - _host->sdio_irq_mask = TMIO_SDIO_MASK_ALL; > - sd_ctrl_write16(_host, CTL_SDIO_IRQ_MASK, _host->sdio_irq_mask); > - sd_ctrl_write16(_host, CTL_TRANSACTION_CTL, 0x0001); > - } > - > spin_lock_init(&_host->lock); > mutex_init(&_host->ios_lock); > > -- > 2.11.0 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-mmc" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html