---

yaml --- r: 164745 b: refs/heads/master c: ad1e597 h: refs/heads/master i: 164743: 39a3ecf v: v3
git-mirror · Sep 23, 2009 · 3bb2cc7 · 3bb2cc7
1 parent f8078d6
commit 3bb2cc7
Show file tree

Hide file tree

Showing 2 changed files with 9 additions and 12 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8226a219254bbcd20492df185f191a11a7a81dcd
+refs/heads/master: ad1e597d4199ffcdee04b9fb402e45c5be6a5052
diff --git a/trunk/drivers/mmc/host/sdhci-of.c b/trunk/drivers/mmc/host/sdhci-of.c
@@ -121,26 +121,23 @@ static void esdhc_writeb(struct sdhci_host *host, u8 val, int reg)
 
 static void esdhc_set_clock(struct sdhci_host *host, unsigned int clock)
 {
-	int div;
 	int pre_div = 2;
+	int div = 1;
 
 	clrbits32(host->ioaddr + ESDHC_SYSTEM_CONTROL, ESDHC_CLOCK_IPGEN |
 		  ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN | ESDHC_CLOCK_MASK);
 
 	if (clock == 0)
 		goto out;
 
-	if (host->max_clk / 16 > clock) {
-		for (; pre_div < 256; pre_div *= 2) {
-			if (host->max_clk / pre_div < clock * 16)
-				break;
-		}
-	}
+	while (host->max_clk / pre_div / 16 > clock && pre_div < 256)
+		pre_div *= 2;
 
-	for (div = 1; div <= 16; div++) {
-		if (host->max_clk / (div * pre_div) <= clock)
-			break;
-	}
+	while (host->max_clk / pre_div / div > clock && div < 16)
+		div++;
+
+	dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n",
+		clock, host->max_clk / pre_div / div);
 
 	pre_div >>= 1;
 	div--;