diff options
| author | Kishon Vijay Abraham I <kishon@ti.com> | 2018-04-27 13:47:21 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2018-05-03 09:37:12 +0200 |
| commit | efde12b246d7704a5697cdaea4512fd97030bb36 (patch) | |
| tree | 54fcae870a53d73f0f5a05c96a1c8d9058fbd9f9 /drivers/mmc | |
| parent | mmc: sdhci-omap: Add support for MMC/SD controller in k2g SoC (diff) | |
| download | linux-efde12b246d7704a5697cdaea4512fd97030bb36.tar.xz linux-efde12b246d7704a5697cdaea4512fd97030bb36.zip | |
mmc: sdhci-omap: Add sdhci_omap specific ops for enable_sdio_irq
Add sdhci_omap_enable_sdio_irq to set CTPL and CLKEXTFREE bits in
MMCHS_CON register required to detect asynchronous card interrupt
on DAT[1].
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-omap.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c index b11c846dd8a1..bd5e03d177e0 100644 --- a/drivers/mmc/host/sdhci-omap.c +++ b/drivers/mmc/host/sdhci-omap.c @@ -36,6 +36,7 @@ #define CON_DDR BIT(19) #define CON_CLKEXTFREE BIT(16) #define CON_PADEN BIT(15) +#define CON_CTPL BIT(11) #define CON_INIT BIT(1) #define CON_OD BIT(0) @@ -226,6 +227,23 @@ static void sdhci_omap_conf_bus_power(struct sdhci_omap_host *omap_host, } } +static void sdhci_omap_enable_sdio_irq(struct mmc_host *mmc, int enable) +{ + struct sdhci_host *host = mmc_priv(mmc); + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host); + u32 reg; + + reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON); + if (enable) + reg |= (CON_CTPL | CON_CLKEXTFREE); + else + reg &= ~(CON_CTPL | CON_CLKEXTFREE); + sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg); + + sdhci_enable_sdio_irq(mmc, enable); +} + static inline void sdhci_omap_set_dll(struct sdhci_omap_host *omap_host, int count) { @@ -962,6 +980,7 @@ static int sdhci_omap_probe(struct platform_device *pdev) host->mmc_host_ops.set_ios = sdhci_omap_set_ios; host->mmc_host_ops.card_busy = sdhci_omap_card_busy; host->mmc_host_ops.execute_tuning = sdhci_omap_execute_tuning; + host->mmc_host_ops.enable_sdio_irq = sdhci_omap_enable_sdio_irq; ret = sdhci_setup_host(host); if (ret) |