diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-04 19:56:20 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-04 19:56:20 -0700 |
commit | 828f3e18e1cb98c68fc6db4d5113513d4a267775 (patch) | |
tree | e1d813f2122dee697e896166917d58f46dff82c5 /drivers/of | |
parent | 298743c193bb50b5d65b9285eb7206ffb31d412d (diff) | |
parent | b5f73d47f34b238221ac771b5fe4907df621d7cb (diff) |
Merge tag 'arm-drivers-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM/SoC driver updates from Arnd Bergmann:
"These are updates to SoC specific drivers that did not have another
subsystem maintainer tree to go through for some reason:
- Some bus and memory drivers for the MIPS P5600 based Baikal-T1 SoC
that is getting added through the MIPS tree.
- There are new soc_device identification drivers for TI K3, Qualcomm
MSM8939
- New reset controller drivers for NXP i.MX8MP, Renesas RZ/G1H, and
Hisilicon hi6220
- The SCMI firmware interface can now work across ARM SMC/HVC as a
transport.
- Mediatek platforms now use a new driver for their "MMSYS" hardware
block that controls clocks and some other aspects in behalf of the
media and gpu drivers.
- Some Tegra processors have improved power management support,
including getting woken up by the PMIC and cluster power down
during idle.
- A new v4l staging driver for Tegra is added.
- Cleanups and minor bugfixes for TI, NXP, Hisilicon, Mediatek, and
Tegra"
* tag 'arm-drivers-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (155 commits)
clk: sprd: fix compile-testing
bus: bt1-axi: Build the driver into the kernel
bus: bt1-apb: Build the driver into the kernel
bus: bt1-axi: Use sysfs_streq instead of strncmp
bus: bt1-axi: Optimize the return points in the driver
bus: bt1-apb: Use sysfs_streq instead of strncmp
bus: bt1-apb: Use PTR_ERR_OR_ZERO to return from request-regs method
bus: bt1-apb: Fix show/store callback identations
bus: bt1-apb: Include linux/io.h
dt-bindings: memory: Add Baikal-T1 L2-cache Control Block binding
memory: Add Baikal-T1 L2-cache Control Block driver
bus: Add Baikal-T1 APB-bus driver
bus: Add Baikal-T1 AXI-bus driver
dt-bindings: bus: Add Baikal-T1 APB-bus binding
dt-bindings: bus: Add Baikal-T1 AXI-bus binding
staging: tegra-video: fix V4L2 dependency
tee: fix crypto select
drivers: soc: ti: knav_qmss_queue: Make knav_gp_range_ops static
soc: ti: add k3 platforms chipid module driver
dt-bindings: soc: ti: add binding for k3 platforms chipid module
...
Diffstat (limited to 'drivers/of')
-rw-r--r-- | drivers/of/of_reserved_mem.c | 41 |
1 files changed, 29 insertions, 12 deletions
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c index 1a84bc0d5fa8..f61e8739502a 100644 --- a/drivers/of/of_reserved_mem.c +++ b/drivers/of/of_reserved_mem.c @@ -358,6 +358,25 @@ int of_reserved_mem_device_init_by_idx(struct device *dev, EXPORT_SYMBOL_GPL(of_reserved_mem_device_init_by_idx); /** + * of_reserved_mem_device_init_by_name() - assign named reserved memory region + * to given device + * @dev: pointer to the device to configure + * @np: pointer to the device node with 'memory-region' property + * @name: name of the selected memory region + * + * Returns: 0 on success or a negative error-code on failure. + */ +int of_reserved_mem_device_init_by_name(struct device *dev, + struct device_node *np, + const char *name) +{ + int idx = of_property_match_string(np, "memory-region-names", name); + + return of_reserved_mem_device_init_by_idx(dev, np, idx); +} +EXPORT_SYMBOL_GPL(of_reserved_mem_device_init_by_name); + +/** * of_reserved_mem_device_release() - release reserved memory device structures * @dev: Pointer to the device to deconfigure * @@ -366,24 +385,22 @@ EXPORT_SYMBOL_GPL(of_reserved_mem_device_init_by_idx); */ void of_reserved_mem_device_release(struct device *dev) { - struct rmem_assigned_device *rd; - struct reserved_mem *rmem = NULL; + struct rmem_assigned_device *rd, *tmp; + LIST_HEAD(release_list); mutex_lock(&of_rmem_assigned_device_mutex); - list_for_each_entry(rd, &of_rmem_assigned_device_list, list) { - if (rd->dev == dev) { - rmem = rd->rmem; - list_del(&rd->list); - kfree(rd); - break; - } + list_for_each_entry_safe(rd, tmp, &of_rmem_assigned_device_list, list) { + if (rd->dev == dev) + list_move_tail(&rd->list, &release_list); } mutex_unlock(&of_rmem_assigned_device_mutex); - if (!rmem || !rmem->ops || !rmem->ops->device_release) - return; + list_for_each_entry_safe(rd, tmp, &release_list, list) { + if (rd->rmem && rd->rmem->ops && rd->rmem->ops->device_release) + rd->rmem->ops->device_release(rd->rmem, dev); - rmem->ops->device_release(rmem, dev); + kfree(rd); + } } EXPORT_SYMBOL_GPL(of_reserved_mem_device_release); |