Request card detect and write protect gpios using the provided API by mmc core. If a gpio is provided for card detect, we don't need to poll. So only use polling when a gpio is not provided. Once all pdata users register the gpios using gpio descriptors, we could remove the platform callbacks. Signed-off-by: Axel Haslam <ahaslam@xxxxxxxxxxxx> --- drivers/mmc/host/davinci_mmc.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c index 619e50e..36b5af8 100644 --- a/drivers/mmc/host/davinci_mmc.c +++ b/drivers/mmc/host/davinci_mmc.c @@ -1167,6 +1167,7 @@ static int mmc_davinci_parse_pdata(struct mmc_host *mmc) struct platform_device *pdev = to_platform_device(mmc->parent); struct davinci_mmc_config *pdata = pdev->dev.platform_data; struct mmc_davinci_host *host; + int ret; if (!pdata) return -EINVAL; @@ -1184,7 +1185,6 @@ static int mmc_davinci_parse_pdata(struct mmc_host *mmc) if (pdata && (pdata->wires == 8)) mmc->caps |= (MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA); - mmc->caps |= MMC_CAP_NEEDS_POLL; mmc->f_min = 312500; mmc->f_max = 25000000; if (pdata && pdata->max_freq) @@ -1192,6 +1192,17 @@ static int mmc_davinci_parse_pdata(struct mmc_host *mmc) if (pdata && pdata->caps) mmc->caps |= pdata->caps; + /* Register a cd gpio, if there is not one, enable polling */ + ret = mmc_gpiod_request_cd(mmc, "cd", 0, false, 0, NULL); + if (ret == -EPROBE_DEFER) + return ret; + else if (ret) + mmc->caps |= MMC_CAP_NEEDS_POLL; + + ret = mmc_gpiod_request_ro(mmc, "wp", 0, false, 0, NULL); + if (ret == -EPROBE_DEFER) + return ret; + return 0; } -- 2.10.1 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
