mmc: sdhci-esdhc-imx: set actual_clock in clock setting

This enables access the actual_clock via sys.
root@imx6qsabreauto:~# cat /sys/kernel/debug/mmc0/ios
clock:          198000000 Hz
actual clock:   198000000 Hz
vdd:            17 (2.9 ~ 3.0 V)
bus mode:       2 (push-pull)
chip select:    0 (don't care)
power mode:     2 (on)
bus width:      2 (4 bits)
timing spec:    6 (sd uhs SDR104)
signal voltage: 0 (1.80 V)

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

2 files changed, 3 insertions, 2 deletions

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index fe48ec3323af..b9899e9c684a 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -524,8 +524,9 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
         while (host_clock / pre_div / div > clock && div < 16)
                 div++;
 
+        host->mmc->actual_clock = host_clock / pre_div / div;
         dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n",
-                clock, host_clock / pre_div / div);
+                clock, host->mmc->actual_clock);
 
         pre_div >>= 1;
         div--;
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index b1605a1747c4..0b249970b119 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -227,7 +227,7 @@ static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock)
                 div++;
 
         dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n",
-                clock, host_clock / pre_div / div);
+                clock, host->max_clk / pre_div / div);
 
         pre_div >>= 1;
         div--;