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

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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>
This commit is contained in:
Dong Aisheng 2013-09-13 19:11:37 +08:00 committed by Chris Ball
parent 5f7886c5ef
commit e76b855956
2 changed files with 3 additions and 2 deletions
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3
drivers/mmc/host/sdhci-esdhc-imx.c
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@ -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--;

2
drivers/mmc/host/sdhci-of-esdhc.c
View File

@ -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--;