A DMA cmd + data transfer can finish or stop (i.e. on a block gap) before the status register is cleared. In that case we'll lose track of state causing sdhci_transfer_data_dma() to loop forever waiting for status bits that are already cleared. Clearing SDHCI_INT_CMD_COMPLETE should suffice here. Since it's not evaluated a second time, clearing it at the start of the function is sufficient so we can just remove the erroneous status write. Signed-off-by: Robin van der Gracht <robin@xxxxxxxxxxx> --- drivers/mci/imx-esdhc-common.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/mci/imx-esdhc-common.c b/drivers/mci/imx-esdhc-common.c index a12db43c88..27293e44b7 100644 --- a/drivers/mci/imx-esdhc-common.c +++ b/drivers/mci/imx-esdhc-common.c @@ -176,7 +176,6 @@ int __esdhc_send_cmd(struct fsl_esdhc_host *host, struct mci_cmd *cmd, } irqstat = sdhci_read32(&host->sdhci, SDHCI_INT_STATUS); - sdhci_write32(&host->sdhci, SDHCI_INT_STATUS, irqstat); if (irqstat & CMD_ERR) return -EIO; -- 2.34.1
