diff options
Diffstat (limited to 'drivers/mmc/host/mmci.c')
| -rw-r--r-- | drivers/mmc/host/mmci.c | 39 |
1 files changed, 29 insertions, 10 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index a7b3af9e9a2a..c85b0d8ee727 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -1674,16 +1674,35 @@ static int mmci_probe(struct amba_device *dev, writel(0, host->base + MMCIMASK1); writel(0xfff, host->base + MMCICLEAR); - /* If DT, cd/wp gpios must be supplied through it. */ - if (!np && gpio_is_valid(plat->gpio_cd)) { - ret = mmc_gpio_request_cd(mmc, plat->gpio_cd, 0); - if (ret) - goto clk_disable; - } - if (!np && gpio_is_valid(plat->gpio_wp)) { - ret = mmc_gpio_request_ro(mmc, plat->gpio_wp); - if (ret) - goto clk_disable; + /* + * If: + * - not using DT but using a descriptor table, or + * - using a table of descriptors ALONGSIDE DT, or + * look up these descriptors named "cd" and "wp" right here, fail + * silently of these do not exist and proceed to try platform data + */ + if (!np) { + ret = mmc_gpiod_request_cd(mmc, "cd", 0, false, 0); + if (ret < 0) { + if (ret == -EPROBE_DEFER) + goto clk_disable; + else if (gpio_is_valid(plat->gpio_cd)) { + ret = mmc_gpio_request_cd(mmc, plat->gpio_cd, 0); + if (ret) + goto clk_disable; + } + } + + ret = mmc_gpiod_request_ro(mmc, "wp", 0, false, 0); + if (ret < 0) { + if (ret == -EPROBE_DEFER) + goto clk_disable; + else if (gpio_is_valid(plat->gpio_wp)) { + ret = mmc_gpio_request_ro(mmc, plat->gpio_wp); + if (ret) + goto clk_disable; + } + } } ret = devm_request_irq(&dev->dev, dev->irq[0], mmci_irq, IRQF_SHARED, |