On 07/03/18 15:20, Kishon Vijay Abraham I wrote:
> 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@xxxxxx>
Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> ---
> drivers/mmc/host/sdhci-omap.c | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c
> index 14dd51b51b41..8ceb3956b211 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)
>
--
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