diff options
| author | Dong Aisheng <b29396@freescale.com> | 2015-04-09 16:16:09 +0800 |
|---|---|---|
| committer | guoyin.chen <guoyin.chen@freescale.com> | 2015-05-08 17:26:19 +0800 |
| commit | 23845c3527c616c8df80b6f051ee2adefc010385 (patch) | |
| tree | 1bb6d90646e58ae6b380b16d82fcfae3340a199d /drivers | |
| parent | ed949f3840e0604aa39f5c4ba4cb14433a96ff5d (diff) | |
MLK-10629-2 mmc: sdhci-esdhc-imx: implement wifi_card_detect function
WiFi driver could call wifi_card_detect function to re-detect card,
this is required by some special WiFi cards like broadcom WiFi.
To use this function, a new property is introduced to indicate a wifi host.
Signed-off-by: Dong Aisheng <b29396@freescale.com>
(cherry picked from commit bb95c03f7c576cdf20367875c19764ebb3eea4b2)
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/sdhci-esdhc-imx.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 712e49329338..708308db4ef7 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -134,6 +134,14 @@ /* the IP supports eMMC HS400 */ #define ESDHC_FLAG_SUP_HS400 BIT(9) +static struct mmc_host *wifi_mmc_host; +void wifi_card_detect(void) +{ + WARN_ON(!wifi_mmc_host); + mmc_detect_change(wifi_mmc_host, 0); +} +EXPORT_SYMBOL(wifi_card_detect); + struct esdhc_soc_data { u32 flags; }; @@ -1036,6 +1044,11 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev, if (of_find_property(np, "enable-sdio-wakeup", NULL)) host->mmc->pm_caps |= MMC_PM_WAKE_SDIO_IRQ; + if (of_get_property(np, "wifi-host", NULL)) { + wifi_mmc_host = host->mmc; + dev_info(mmc_dev(host->mmc), "assigned as wifi host\n"); + } + return 0; } #else |