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SubjectRe: [PATCH 04/13] mmc: bcm2835: add bcm2835_check_data_error
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On 2017/1/27 7:37, Gerd Hoffmann wrote:
> Factor out common code.
>
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
> drivers/mmc/host/bcm2835.c | 30 ++++++++++++------------------
> 1 file changed, 12 insertions(+), 18 deletions(-)
>
> diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c
> index 6f9fb12..d25b85a 100644
> --- a/drivers/mmc/host/bcm2835.c
> +++ b/drivers/mmc/host/bcm2835.c
> @@ -951,6 +951,16 @@ static void bcm2835_timeout(unsigned long data)
> spin_unlock_irqrestore(&host->lock, flags);
> }
>
> +static void bcm2835_check_data_error(struct bcm2835_host *host, u32 intmask)
> +{
> + if (!host->data)
> + return;
> + if (intmask & (SDHSTS_CRC16_ERROR | SDHSTS_FIFO_ERROR))
> + host->data->error = -EILSEQ;
> + if (intmask & SDHSTS_REW_TIME_OUT)
> + host->data->error = -ETIMEDOUT;
> +}
> +
> static void bcm2835_busy_irq(struct bcm2835_host *host, u32 intmask)
> {
> struct device *dev = &host->pdev->dev;
> @@ -1007,15 +1017,7 @@ static void bcm2835_data_irq(struct bcm2835_host *host, u32 intmask)
> if (!host->data)
> return;
>

remove this check, !host->data, as well.

> - if (intmask & (SDHSTS_CRC16_ERROR |
> - SDHSTS_FIFO_ERROR |
> - SDHSTS_REW_TIME_OUT)) {
> - if (intmask & (SDHSTS_CRC16_ERROR |
> - SDHSTS_FIFO_ERROR))
> - host->data->error = -EILSEQ;
> - else
> - host->data->error = -ETIMEDOUT;
> - }
> + bcm2835_check_data_error(host, intmask);
>
> if (host->data->error) {
> bcm2835_finish_data(host);
> @@ -1043,15 +1045,7 @@ static void bcm2835_block_irq(struct bcm2835_host *host, u32 intmask)
> return;
> }
>
> - if (intmask & (SDHSTS_CRC16_ERROR |
> - SDHSTS_FIFO_ERROR |
> - SDHSTS_REW_TIME_OUT)) {
> - if (intmask & (SDHSTS_CRC16_ERROR |
> - SDHSTS_FIFO_ERROR))
> - host->data->error = -EILSEQ;
> - else
> - host->data->error = -ETIMEDOUT;
> - }
> + bcm2835_check_data_error(host, intmask);
>
> if (!host->dma_desc) {
> WARN_ON(!host->blocks);
>


--
Best Regards
Shawn Lin

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