mmc: pxamci: add SDIO card interrupt reporting capability
Again, only available from PXA27x.
Signed-off-by: Bridge Wu <mingqiao.wu@gmail.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index 6549f54..91e2568 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -309,6 +309,10 @@
handled |= pxamci_cmd_done(host, stat);
if (ireg & DATA_TRAN_DONE)
handled |= pxamci_data_done(host, stat);
+ if (ireg & SDIO_INT) {
+ mmc_signal_sdio_irq(host->mmc);
+ handled = 1;
+ }
}
return IRQ_RETVAL(handled);
@@ -391,10 +395,21 @@
host->clkrt, host->cmdat);
}
+static void pxamci_enable_sdio_irq(struct mmc_host *host, int enable)
+{
+ struct pxamci_host *pxa_host = mmc_priv(host);
+
+ if (enable)
+ pxamci_enable_irq(pxa_host, SDIO_INT);
+ else
+ pxamci_disable_irq(pxa_host, SDIO_INT);
+}
+
static const struct mmc_host_ops pxamci_ops = {
- .request = pxamci_request,
- .get_ro = pxamci_get_ro,
- .set_ios = pxamci_set_ios,
+ .request = pxamci_request,
+ .get_ro = pxamci_get_ro,
+ .set_ios = pxamci_set_ios,
+ .enable_sdio_irq = pxamci_enable_sdio_irq,
};
static void pxamci_dma_irq(int dma, void *devid)
@@ -466,8 +481,11 @@
host->pdata->ocr_mask :
MMC_VDD_32_33|MMC_VDD_33_34;
mmc->caps = 0;
- if (!cpu_is_pxa21x() && !cpu_is_pxa25x())
- mmc->caps |= MMC_CAP_4_BIT_DATA;
+ host->cmdat = 0;
+ if (!cpu_is_pxa21x() && !cpu_is_pxa25x()) {
+ mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;
+ host->cmdat |= CMDAT_SDIO_INT_EN;
+ }
host->sg_cpu = dma_alloc_coherent(&pdev->dev, PAGE_SIZE, &host->sg_dma, GFP_KERNEL);
if (!host->sg_cpu) {