ARM: OMAP: hsmmc: add max_freq field

External circuitry like level shifters may limit the maximum operation
speed of the hsmmc controller. Add a field to struct omap2_hsmmc_info
so boards can adjust the setting on demand.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index fd0c661bbad3..36e7f5bc58a3 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1912,8 +1912,12 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
         if (mmc_slot(host).vcc_aux_disable_is_sleep)
                 mmc_slot(host).no_off = 1;
 
-        mmc->f_min      = OMAP_MMC_MIN_CLOCK;
-        mmc->f_max      = OMAP_MMC_MAX_CLOCK;
+        mmc->f_min = OMAP_MMC_MIN_CLOCK;
+
+        if (pdata->max_freq > 0)
+                mmc->f_max = pdata->max_freq;
+        else
+                mmc->f_max = OMAP_MMC_MAX_CLOCK;
 
         spin_lock_init(&host->irq_lock);