We now have a function to calculate the clock divider. Use it.
Signed-off-by: Sascha Hauer <[email protected]>
---
drivers/mci/arasan-sdhci.c | 40 ++------------------------------------
1 file changed, 2 insertions(+), 38 deletions(-)
diff --git a/drivers/mci/arasan-sdhci.c b/drivers/mci/arasan-sdhci.c
index 180f0042bf..8a5e85109c 100644
--- a/drivers/mci/arasan-sdhci.c
+++ b/drivers/mci/arasan-sdhci.c
@@ -152,21 +152,6 @@ static int arasan_sdhci_init(struct mci_host *mci, struct
device_d *dev)
return 0;
}
-static u16 arasan_sdhci_get_clock_divider(struct arasan_sdhci_host *host,
- unsigned int reqclk)
-{
- u16 div;
-
- for (div = 1; div < SDHCI_MAX_DIV_SPEC_300; div += 2)
- if ((host->mci.f_max / div) <= reqclk)
- break;
- div /= 2;
-
- return div;
-}
-
-#define SDHCI_FREQ_SEL_10_BIT(x) (((x) & 0x300) >> 2)
-
static void arasan_sdhci_set_ios(struct mci_host *mci, struct mci_ios *ios)
{
struct arasan_sdhci_host *host = to_arasan_sdhci_host(mci);
@@ -175,29 +160,8 @@ static void arasan_sdhci_set_ios(struct mci_host *mci,
struct mci_ios *ios)
/* stop clock */
sdhci_write16(&host->sdhci, SDHCI_CLOCK_CONTROL, 0);
- if (ios->clock) {
- u64 start;
-
- /* set & start clock */
- val = arasan_sdhci_get_clock_divider(host, ios->clock);
- /* Bit 6 & 7 are upperbits of 10bit divider */
- val = SDHCI_FREQ_SEL(val) | SDHCI_FREQ_SEL_10_BIT(val);
- val |= SDHCI_CLOCK_INT_EN;
- sdhci_write16(&host->sdhci, SDHCI_CLOCK_CONTROL, val);
-
- start = get_time_ns();
- while (!(sdhci_read16(&host->sdhci, SDHCI_CLOCK_CONTROL) &
- SDHCI_CLOCK_INT_STABLE)) {
- if (is_timeout(start, 20 * MSECOND)) {
- dev_err(host->mci.hw_dev,
- "SDHCI clock stable timeout\n");
- return;
- }
- }
- /* enable bus clock */
- sdhci_write16(&host->sdhci, SDHCI_CLOCK_CONTROL,
- val | SDHCI_CLOCK_CARD_EN);
- }
+ if (ios->clock)
+ sdhci_set_clock(&host->sdhci, ios->clock, host->sdhci.max_clk);
sdhci_set_bus_width(&host->sdhci, ios->bus_width);
--
2.29.2
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