@@ -1812,25 +1812,34 @@ err:
return ret;
}
+static void omap_hsmmc_set_capabilities(struct omap_hsmmc_host *host)
+{
+ u32 val;
+
+ val = OMAP_HSMMC_READ(host->base, CAPA);
+
+ /* Only MMC1 supports 3.0V */
+ if (host->pdata->controller_flags & OMAP_HSMMC_SUPPORTS_DUAL_VOLT)
+ val |= (VS30 | VS18);
+ else
+ val |= VS18;
+
+ OMAP_HSMMC_WRITE(host->base, CAPA, val);
+}
+
static void omap_hsmmc_conf_bus_power(struct omap_hsmmc_host *host)
{
- u32 hctl, capa, value;
+ u32 hctl, value;
/* Only MMC1 supports 3.0V */
- if (host->pdata->controller_flags & OMAP_HSMMC_SUPPORTS_DUAL_VOLT) {
+ if (host->pdata->controller_flags & OMAP_HSMMC_SUPPORTS_DUAL_VOLT)
hctl = SDVS30;
- capa = VS30 | VS18;
- } else {
+ else
hctl = SDVS18;
- capa = VS18;
- }
value = OMAP_HSMMC_READ(host->base, HCTL) & ~SDVS_MASK;
OMAP_HSMMC_WRITE(host->base, HCTL, value | hctl);
- value = OMAP_HSMMC_READ(host->base, CAPA);
- OMAP_HSMMC_WRITE(host->base, CAPA, value | capa);
-
/* Set SD bus power bit */
set_sd_bus_power(host);
}
@@ -2133,6 +2142,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
mmc->pm_caps |= mmc_pdata(host)->pm_caps;
+ omap_hsmmc_set_capabilities(host);
omap_hsmmc_conf_bus_power(host);
if (!pdev->dev.of_node) {
Added a separate function to set the voltage capabilities of the host controller. Voltage capabilities should be set only once during controller initialization but bus power can be changed every time there is a voltage switch and whenever a different card is inserted. This allows omap_hsmmc_conf_bus_power to be invoked every time there is a voltage switch. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> --- drivers/mmc/host/omap_hsmmc.c | 28 +++++++++++++++++++--------- 1 file changed, 19 insertions(+), 9 deletions(-)