This patch makes the intention of the code more clear.
Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx>
---
drivers/mmc/host/omap.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index b94f38e..3187af0 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -189,7 +189,7 @@ static void mmc_omap_fclk_offdelay(struct mmc_omap_slot *slot)
unsigned long tick_ns;
if (slot != NULL && slot->host->fclk_enabled && slot->fclk_freq > 0) {
- tick_ns = (1000000000 + slot->fclk_freq - 1) / slot->fclk_freq;
+ tick_ns = DIV_ROUND_UP(1000000000, slot->fclk_freq);
ndelay(8 * tick_ns);
}
}
@@ -444,7 +444,7 @@ static void mmc_omap_send_stop_work(struct work_struct *work)
struct mmc_data *data = host->stop_data;
unsigned long tick_ns;
- tick_ns = (1000000000 + slot->fclk_freq - 1)/slot->fclk_freq;
+ tick_ns = DIV_ROUND_UP(1000000000, slot->fclk_freq);
ndelay(8*tick_ns);
mmc_omap_start_command(host, data->stop);
@@ -486,7 +486,7 @@ mmc_omap_send_abort(struct mmc_omap_host *host, int maxloops)
u16 stat = 0;
/* Sending abort takes 80 clocks. Have some extra and round up */
- timeout = (120*1000000 + slot->fclk_freq - 1)/slot->fclk_freq;
+ timeout = DIV_ROUND_UP(120 * 1000000, slot->fclk_freq);
restarts = 0;
while (restarts < maxloops) {
OMAP_MMC_WRITE(host, STAT, 0xFFFF);
@@ -686,8 +686,8 @@ mmc_omap_xfer_data(struct mmc_omap_host *host, int write)
if (n > host->buffer_bytes_left)
n = host->buffer_bytes_left;
- nwords = n / 2;
- nwords += n & 1; /* handle odd number of bytes to transfer */
+ /* Round up to handle odd number of bytes to transfer */
+ nwords = DIV_ROUND_UP(n, 2);
host->buffer_bytes_left -= n;
host->total_bytes_left -= n;
--
1.8.1.2
--
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