From: Marco Felsch <m.felsch@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 1/3] driver: add flag to check if cdev is an mci device
Date: Thu, 6 May 2021 13:22:17 +0200 [thread overview]
Message-ID: <20210506112219.27114-1-m.felsch@pengutronix.de> (raw)
We need this during mount() to check if the cdev is an mmc/mci device.
Later on we add the feature to pass "root=/dev/mmcblk*" as kernel
command line.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---
include/driver.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/driver.h b/include/driver.h
index 0d43b36148..d381aaf78d 100644
--- a/include/driver.h
+++ b/include/driver.h
@@ -496,6 +496,7 @@ int cdev_erase(struct cdev *cdev, loff_t count, loff_t offset);
#define DEVFS_PARTITION_READONLY (1U << 1)
#define DEVFS_IS_CHARACTER_DEV (1U << 3)
#define DEVFS_PARTITION_FROM_TABLE (1U << 4)
+#define DEVFS_IS_MCI_DEV (1U << 5)
struct cdev *devfs_add_partition(const char *devname, loff_t offset,
loff_t size, unsigned int flags, const char *name);
@@ -509,6 +510,11 @@ static inline void cdev_create_default_automount(struct cdev *cdev)
}
#endif
+static inline bool cdev_is_mci_dev(struct cdev *cdev)
+{
+ return !!(cdev->flags & DEVFS_IS_MCI_DEV);
+}
+
#define DEVFS_PARTITION_APPEND 0
/**
--
2.29.2
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next reply other threads:[~2021-05-06 11:25 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-06 11:22 Marco Felsch [this message]
2021-05-06 11:22 ` [PATCH 2/3] mci: mci-core: set the DEVFS_IS_MCI_DEV flag Marco Felsch
2021-05-06 12:06 ` Ahmad Fatoum
2021-05-06 13:07 ` Marco Felsch
2021-05-06 13:10 ` Ahmad Fatoum
2021-05-06 11:22 ` [PATCH 3/3] fs: add linux_rootarg 'root=mmcblkXpN' support Marco Felsch
2021-05-06 12:19 ` Ahmad Fatoum
2021-05-06 13:30 ` Marco Felsch
2021-05-06 11:59 ` [PATCH 1/3] driver: add flag to check if cdev is an mci device Ahmad Fatoum
2021-05-06 13:08 ` Marco Felsch
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