Messages in this thread Patch in this message | | | From | "Luis R. Rodriguez" <> | Subject | [RFC 1/4] sdhci: allow for multiple delays when sending commands | Date | Fri, 18 Mar 2011 15:11:57 -0700 |
| |
This is at least known to be required for the ENE 714.
Cc: Chris Ball <cjb@laptop.org> Cc: Kalle Valo <kvalo@adurom.com> Cc: Naveen Singh <nsingh@atheros.com> Cc: Vipin Mehta <Vipin.Mehta@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> --- drivers/mmc/host/sdhci.c | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 9e15f41..c95dfc2 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -891,8 +891,8 @@ static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd) WARN_ON(host->cmd); - /* Wait max 10 ms */ - timeout = 10; + /* Wait max this amount of ms */ + timeout = (10*256) + 255; mask = SDHCI_CMD_INHIBIT; if ((cmd->data != NULL) || (cmd->flags & MMC_RSP_BUSY)) @@ -913,7 +913,8 @@ static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd) return; } timeout--; - mdelay(1); + if (!(timeout & 0xFF)) + mdelay(1); } mod_timer(&host->timer, jiffies + 10 * HZ); -- 1.7.4.15.g7811d
| |