mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-09-13 05:34:06 -04:00
b5be879519
Current implementation isn't working well when device tree nodes have a
phandle on a fixed-layout nvmem node. As the fixed layout is handled in
nvmem core, no driver is ever associated with the layout, and the device
consumer driver probe is deferred indefinitely.
Remove the specific handling of fixed-layout and add a layout driver.
This makes the fixed-layout similar to all other layouts, fixing the
whole issue.
Fixes: fc29fd821d ("nvmem: core: Rework layouts to become regular devices")
Cc: stable@vger.kernel.org
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Srinivas Kandagatla <srini@kernel.org>
Link: https://patch.msgid.link/20260724223404.629248-3-srini@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
|
|
#ifndef _LINUX_NVMEM_INTERNALS_H
|
|
#define _LINUX_NVMEM_INTERNALS_H
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/nvmem-consumer.h>
|
|
#include <linux/nvmem-provider.h>
|
|
|
|
struct nvmem_device {
|
|
struct module *owner;
|
|
struct device dev;
|
|
struct list_head node;
|
|
int stride;
|
|
int word_size;
|
|
int id;
|
|
struct kref refcnt;
|
|
size_t size;
|
|
bool read_only;
|
|
bool root_only;
|
|
int flags;
|
|
enum nvmem_type type;
|
|
struct bin_attribute eeprom;
|
|
struct device *base_dev;
|
|
struct list_head cells;
|
|
void (*fixup_dt_cell_info)(struct nvmem_device *nvmem,
|
|
struct nvmem_cell_info *cell);
|
|
const struct nvmem_keepout *keepout;
|
|
unsigned int nkeepout;
|
|
nvmem_reg_read_t reg_read;
|
|
nvmem_reg_write_t reg_write;
|
|
struct gpio_desc *wp_gpio;
|
|
struct nvmem_layout *layout;
|
|
void *priv;
|
|
bool sysfs_cells_populated;
|
|
};
|
|
|
|
int nvmem_add_cells_from_dt(struct nvmem_device *nvmem, struct device_node *np);
|
|
|
|
#if IS_ENABLED(CONFIG_OF)
|
|
int nvmem_layout_bus_register(void);
|
|
void nvmem_layout_bus_unregister(void);
|
|
int nvmem_populate_layout(struct nvmem_device *nvmem);
|
|
void nvmem_destroy_layout(struct nvmem_device *nvmem);
|
|
#else /* CONFIG_OF */
|
|
static inline int nvmem_layout_bus_register(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void nvmem_layout_bus_unregister(void) {}
|
|
|
|
static inline int nvmem_populate_layout(struct nvmem_device *nvmem)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void nvmem_destroy_layout(struct nvmem_device *nvmem) { }
|
|
#endif /* CONFIG_OF */
|
|
|
|
#endif /* ifndef _LINUX_NVMEM_INTERNALS_H */
|