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mmc: tmio: make sure SDIO gets reinitialized after resume 

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 <wsa+renesas@sang-engineering.com>
Tested-by: Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Wolfram Sang 2017-05-23 15:34:08 +02:00 committed by Ulf Hansson
parent c949c90749
commit 86beb538fa
1 changed files with 10 additions and 7 deletions
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17
drivers/mmc/host/tmio_mmc_core.c
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@ -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);