return 0;
}
-static void sdhci_pci_gpio_hw_reset(struct sdhci_host *host)
-{
- struct sdhci_pci_slot *slot = sdhci_priv(host);
- int rst_n_gpio = slot->rst_n_gpio;
-
- if (!gpio_is_valid(rst_n_gpio))
- return;
- gpio_set_value_cansleep(rst_n_gpio, 0);
- /* For eMMC, minimum is 1us but give it 10us for good measure */
- udelay(10);
- gpio_set_value_cansleep(rst_n_gpio, 1);
- /* For eMMC, minimum is 200us but give it 300us for good measure */
- usleep_range(300, 1000);
-}
-
static void sdhci_pci_hw_reset(struct sdhci_host *host)
{
struct sdhci_pci_slot *slot = sdhci_priv(host);
slot->chip = chip;
slot->host = host;
- slot->rst_n_gpio = -EINVAL;
slot->cd_idx = -1;
host->hw_name = "PCI";
goto cleanup;
}
- if (gpio_is_valid(slot->rst_n_gpio)) {
- if (!devm_gpio_request(&pdev->dev, slot->rst_n_gpio, "eMMC_reset")) {
- gpio_direction_output(slot->rst_n_gpio, 1);
- slot->host->mmc->caps |= MMC_CAP_HW_RESET;
- slot->hw_reset = sdhci_pci_gpio_hw_reset;
- } else {
- dev_warn(&pdev->dev, "failed to request rst_n_gpio\n");
- slot->rst_n_gpio = -EINVAL;
- }
- }
-
host->mmc->pm_caps = MMC_PM_KEEP_POWER;
host->mmc->slotno = slotno;
host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP;