Re: [PATCH] mmc: dw_mmc: Handle the Hardware Locked Write Error(HLE)

[Jaehoon Chung <jh80.chung@samsung.com>]

You can refer to Seungwon's patch.

https://patchwork.kernel.org/patch/1814991/

Best Regards,
Jaehoon Chung

On 08/02/2013 12:50 PM, dinguyen@altera.com wrote:
> From: Dinh Nguyen <dinguyen@altera.com>
> 
> The Handle the Hardware Locked Write Error(HLE) was getting triggered
> intermittently on the SOCFPGA platform. But since the driver did not
> have a mechanism to handle this interrupt, it was stuck in the ISR.
> 
> Clear the HLE interrupt when it gets triggered.
> 
> Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
> Cc: Doug Anderson <dianders@chromium.org>
> Cc: Jaehoon Chung <jh80.chung@samsung.com>
> Cc: James Hogan <james.hogan@imgtec.com>
> Cc: Seungwon Jeon <tgih.jun@samsung.com>
> Cc: Chris Ball <cjb@laptop.org>
> ---
>  drivers/mmc/host/dw_mmc.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
> index ee5f167..ef30bec 100644
> --- a/drivers/mmc/host/dw_mmc.c
> +++ b/drivers/mmc/host/dw_mmc.c
> @@ -1664,6 +1664,9 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
>  			queue_work(host->card_workqueue, &host->card_work);
>  		}
>  
> +		if (pending & SDMMC_INT_HLE)
> +			mci_writel(host, RINTSTS, SDMMC_INT_HLE);
> +
>  		/* Handle SDIO Interrupts */
>  		for (i = 0; i < host->num_slots; i++) {
>  			struct dw_mci_slot *slot = host->slot[i];
>