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authorKishon Vijay Abraham I <kishon@ti.com>2018-04-27 14:47:21 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2018-05-03 10:37:12 +0300
commitefde12b246d7704a5697cdaea4512fd97030bb36 (patch)
tree54fcae870a53d73f0f5a05c96a1c8d9058fbd9f9 /drivers/mmc/host/sdhci-omap.c
parent6d75df75abb15109d6305f5cb22793752b3b7ab8 (diff)
downloadlinux-efde12b246d7704a5697cdaea4512fd97030bb36.tar.xz
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/host/sdhci-omap.c')
-rw-r--r--drivers/mmc/host/sdhci-omap.c19
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)