From 62c8c0e6a3b304bb8199a168887561f4acc79021 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 6 Aug 2015 20:16:27 -0600 Subject: [PATCH] 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 Signed-off-by: Pantelis Antoniou Acked-by: Jaehoon Chung --- drivers/mmc/dw_mmc.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c index fcd5784899..d34e4ee9dd 100644 --- a/drivers/mmc/dw_mmc.c +++ b/drivers/mmc/dw_mmc.c @@ -8,6 +8,7 @@ #include #include +#include #include #include #include @@ -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 */ -- 2.39.2