Loading Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt +2 −0 Original line number Diff line number Diff line Loading @@ -73,6 +73,8 @@ Optional properties: 3: 52 MHz Defaults to 26 MHz if not specified. - extcon: phandle to external connector (Refer Documentation/devicetree/bindings/extcon/extcon-gpio.txt for more details). - non-removable : defines if the connected ufs device is not removable Note: If above properties are not defined it can be assumed that the supply regulators or clocks are always on. Loading drivers/scsi/ufs/ufs-qcom.c +30 −0 Original line number Diff line number Diff line Loading @@ -1987,6 +1987,18 @@ static void ufs_qcom_pm_qos_remove(struct ufs_qcom_host *host) } #endif /* CONFIG_SMP */ #define ANDROID_BOOT_DEV_MAX 30 static char android_boot_dev[ANDROID_BOOT_DEV_MAX]; #ifndef MODULE static int __init get_android_boot_dev(char *str) { strlcpy(android_boot_dev, str, ANDROID_BOOT_DEV_MAX); return 1; } __setup("androidboot.bootdevice=", get_android_boot_dev); #endif /* * ufs_qcom_parse_lpm - read from DTS whether LPM modes should be disabled. */ Loading Loading @@ -2676,6 +2688,24 @@ static int ufs_qcom_probe(struct platform_device *pdev) { int err; struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; /* * On qcom platforms, bootdevice is the primary storage * device. This device can either be eMMC or UFS. * The type of device connected is detected at runtime. * So, if an eMMC device is connected, and this function * is invoked, it would turn-off the regulator if it detects * that the storage device is not ufs. * These regulators are turned ON by the bootloaders & turning * them off without sending PON may damage the connected device. * Hence, check for the connected device early-on & don't turn-off * the regulators. */ if (of_property_read_bool(np, "non-removable") && strlen(android_boot_dev) && strcmp(android_boot_dev, dev_name(dev))) return -ENODEV; /* Perform generic probe */ err = ufshcd_pltfrm_init(pdev, &ufs_hba_qcom_variant); Loading Loading
Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt +2 −0 Original line number Diff line number Diff line Loading @@ -73,6 +73,8 @@ Optional properties: 3: 52 MHz Defaults to 26 MHz if not specified. - extcon: phandle to external connector (Refer Documentation/devicetree/bindings/extcon/extcon-gpio.txt for more details). - non-removable : defines if the connected ufs device is not removable Note: If above properties are not defined it can be assumed that the supply regulators or clocks are always on. Loading
drivers/scsi/ufs/ufs-qcom.c +30 −0 Original line number Diff line number Diff line Loading @@ -1987,6 +1987,18 @@ static void ufs_qcom_pm_qos_remove(struct ufs_qcom_host *host) } #endif /* CONFIG_SMP */ #define ANDROID_BOOT_DEV_MAX 30 static char android_boot_dev[ANDROID_BOOT_DEV_MAX]; #ifndef MODULE static int __init get_android_boot_dev(char *str) { strlcpy(android_boot_dev, str, ANDROID_BOOT_DEV_MAX); return 1; } __setup("androidboot.bootdevice=", get_android_boot_dev); #endif /* * ufs_qcom_parse_lpm - read from DTS whether LPM modes should be disabled. */ Loading Loading @@ -2676,6 +2688,24 @@ static int ufs_qcom_probe(struct platform_device *pdev) { int err; struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; /* * On qcom platforms, bootdevice is the primary storage * device. This device can either be eMMC or UFS. * The type of device connected is detected at runtime. * So, if an eMMC device is connected, and this function * is invoked, it would turn-off the regulator if it detects * that the storage device is not ufs. * These regulators are turned ON by the bootloaders & turning * them off without sending PON may damage the connected device. * Hence, check for the connected device early-on & don't turn-off * the regulators. */ if (of_property_read_bool(np, "non-removable") && strlen(android_boot_dev) && strcmp(android_boot_dev, dev_name(dev))) return -ENODEV; /* Perform generic probe */ err = ufshcd_pltfrm_init(pdev, &ufs_hba_qcom_variant); Loading
