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Subject[PATCH v3 11/11] mmc: sdhci-omap: Add sdhci_omap specific ops for enable_sdio_irq
Date
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>
---
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)
--
2.11.0
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