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authorSimon Glass <sjg@chromium.org>2015-08-06 20:16:27 -0600
committerPantelis Antoniou <pantelis.antoniou@konsulko.com>2015-08-11 21:52:43 +0300
commit1c87ffe8d1eef2c759b97129fd48e218a039cbcd (patch)
treec9124f3fc146c0477c78aff89f89151e75232c43 /drivers/mmc/dw_mmc.c
parent9042d974d2391b58d9a51f805756fac31f3c656f (diff)
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mmc: dw_mmc: Avoid using printf() for errors
The dw_mmc driver uses printf() in various places. These bloat the code and cause problems for SPL. Use debug() where possible and try to return a useful error code instead. panto: Small rework to make it apply against top of tree. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Diffstat (limited to 'drivers/mmc/dw_mmc.c')
-rw-r--r--drivers/mmc/dw_mmc.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
index fcd5784..d34e4ee 100644
--- a/drivers/mmc/dw_mmc.c
+++ b/drivers/mmc/dw_mmc.c
@@ -8,6 +8,7 @@
#include <bouncebuf.h>
#include <common.h>
+#include <errno.h>
#include <malloc.h>
#include <mmc.h>
#include <dwmmc.h>
@@ -119,7 +120,7 @@ static int dwmci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
while (dwmci_readl(host, DWMCI_STATUS) & DWMCI_BUSY) {
if (get_timer(start) > timeout) {
- printf("%s: Timeout on data busy\n", __func__);
+ debug("%s: Timeout on data busy\n", __func__);
return TIMEOUT;
}
}
@@ -178,7 +179,7 @@ static int dwmci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
}
if (i == retry) {
- printf("%s: Timeout.\n", __func__);
+ debug("%s: Timeout.\n", __func__);
return TIMEOUT;
}
@@ -194,8 +195,8 @@ static int dwmci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
debug("%s: Response Timeout.\n", __func__);
return TIMEOUT;
} else if (mask & DWMCI_INTMSK_RE) {
- printf("%s: Response Error.\n", __func__);
- return -1;
+ debug("%s: Response Error.\n", __func__);
+ return -EIO;
}
@@ -217,7 +218,7 @@ static int dwmci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
mask = dwmci_readl(host, DWMCI_RINTSTS);
/* Error during data transfer. */
if (mask & (DWMCI_DATA_ERR | DWMCI_DATA_TOUT)) {
- printf("%s: DATA ERROR!\n", __func__);
+ debug("%s: DATA ERROR!\n", __func__);
ret = -EINVAL;
break;
}
@@ -230,7 +231,7 @@ static int dwmci_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
/* Check for timeout. */
if (get_timer(start) > timeout) {
- printf("%s: Timeout waiting for data!\n",
+ debug("%s: Timeout waiting for data!\n",
__func__);
ret = TIMEOUT;
break;
@@ -269,7 +270,7 @@ static int dwmci_setup_bus(struct dwmci_host *host, u32 freq)
else if (host->bus_hz)
sclk = host->bus_hz;
else {
- printf("%s: Didn't get source clock value.\n", __func__);
+ debug("%s: Didn't get source clock value.\n", __func__);
return -EINVAL;
}
@@ -288,7 +289,7 @@ static int dwmci_setup_bus(struct dwmci_host *host, u32 freq)
do {
status = dwmci_readl(host, DWMCI_CMD);
if (timeout-- < 0) {
- printf("%s: Timeout!\n", __func__);
+ debug("%s: Timeout!\n", __func__);
return -ETIMEDOUT;
}
} while (status & DWMCI_CMD_START);
@@ -303,7 +304,7 @@ static int dwmci_setup_bus(struct dwmci_host *host, u32 freq)
do {
status = dwmci_readl(host, DWMCI_CMD);
if (timeout-- < 0) {
- printf("%s: Timeout!\n", __func__);
+ debug("%s: Timeout!\n", __func__);
return -ETIMEDOUT;
}
} while (status & DWMCI_CMD_START);
@@ -357,8 +358,8 @@ static int dwmci_init(struct mmc *mmc)
dwmci_writel(host, DWMCI_PWREN, 1);
if (!dwmci_wait_reset(host, DWMCI_RESET_ALL)) {
- printf("%s[%d] Fail-reset!!\n", __func__, __LINE__);
- return -1;
+ debug("%s[%d] Fail-reset!!\n", __func__, __LINE__);
+ return -EIO;
}
/* Enumerate at 400KHz */