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author | 2017-11-16 16:05:01 -0800 | |
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committer | 2017-11-16 16:05:01 -0800 | |
commit | cf9b0772f2e410645fece13b749bd56505b998b8 (patch) | |
tree | 8b171a2c49d1e9e41d4e43fb91602e664cde8551 /drivers/of | |
parent | Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/ar... (diff) | |
parent | soc: amlogic: meson-gx-pwrc-vpu: fix power-off when powered by bootloader (diff) | |
download | linux-cf9b0772f2e410645fece13b749bd56505b998b8.tar.gz linux-cf9b0772f2e410645fece13b749bd56505b998b8.tar.bz2 linux-cf9b0772f2e410645fece13b749bd56505b998b8.zip |
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Arnd Bergmann:
"This branch contains platform-related driver updates for ARM and
ARM64, these are the areas that bring the changes:
New drivers:
- driver support for Renesas R-Car V3M (R8A77970)
- power management support for Amlogic GX
- a new driver for the Tegra BPMP thermal sensor
- a new bus driver for Technologic Systems NBUS
Changes for subsystems that prefer to merge through arm-soc:
- the usual updates for reset controller drivers from Philipp Zabel,
with five added drivers for SoCs in the arc, meson, socfpa,
uniphier and mediatek families
- updates to the ARM SCPI and PSCI frameworks, from Sudeep Holla,
Heiner Kallweit and Lorenzo Pieralisi
Changes specific to some ARM-based SoC
- the Freescale/NXP DPAA QBMan drivers from PowerPC can now work on
ARM as well
- several changes for power management on Broadcom SoCs
- various improvements on Qualcomm, Broadcom, Amlogic, Atmel,
Mediatek
- minor Cleanups for Samsung, TI OMAP SoCs"
[ NOTE! This doesn't work without the previous ARM SoC device-tree pull,
because the R8A77970 driver is missing a header file that came from
that pull.
The fact that this got merged afterwards only fixes it at this point,
and bisection of that driver will fail if/when you walk into the
history of that driver. - Linus ]
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (96 commits)
soc: amlogic: meson-gx-pwrc-vpu: fix power-off when powered by bootloader
bus: add driver for the Technologic Systems NBUS
memory: omap-gpmc: Remove deprecated gpmc_update_nand_reg()
soc: qcom: remove unused label
soc: amlogic: gx pm domain: add PM and OF dependencies
drivers/firmware: psci_checker: Add missing destroy_timer_on_stack()
dt-bindings: power: add amlogic meson power domain bindings
soc: amlogic: add Meson GX VPU Domains driver
soc: qcom: Remote filesystem memory driver
dt-binding: soc: qcom: Add binding for rmtfs memory
of: reserved_mem: Accessor for acquiring reserved_mem
of/platform: Generalize /reserved-memory handling
soc: mediatek: pwrap: fix fatal compiler error
soc: mediatek: pwrap: fix compiler errors
arm64: mediatek: cleanup message for platform selection
soc: Allow test-building of MediaTek drivers
soc: mediatek: place Kconfig for all SoC drivers under menu
soc: mediatek: pwrap: add support for MT7622 SoC
soc: mediatek: pwrap: add common way for setup CS timing extenstion
soc: mediatek: pwrap: add MediaTek MT6380 as one slave of pwrap
..
Diffstat (limited to 'drivers/of')
-rw-r--r-- | drivers/of/of_reserved_mem.c | 26 | ||||
-rw-r--r-- | drivers/of/platform.c | 19 |
2 files changed, 37 insertions, 8 deletions
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c index 32771c2ced7b..22b75c82e377 100644 --- a/drivers/of/of_reserved_mem.c +++ b/drivers/of/of_reserved_mem.c @@ -397,3 +397,29 @@ void of_reserved_mem_device_release(struct device *dev) rmem->ops->device_release(rmem, dev); } EXPORT_SYMBOL_GPL(of_reserved_mem_device_release); + +/** + * of_reserved_mem_lookup() - acquire reserved_mem from a device node + * @np: node pointer of the desired reserved-memory region + * + * This function allows drivers to acquire a reference to the reserved_mem + * struct based on a device node handle. + * + * Returns a reserved_mem reference, or NULL on error. + */ +struct reserved_mem *of_reserved_mem_lookup(struct device_node *np) +{ + const char *name; + int i; + + if (!np->full_name) + return NULL; + + name = kbasename(np->full_name); + for (i = 0; i < reserved_mem_count; i++) + if (!strcmp(reserved_mem[i].name, name)) + return &reserved_mem[i]; + + return NULL; +} +EXPORT_SYMBOL_GPL(of_reserved_mem_lookup); diff --git a/drivers/of/platform.c b/drivers/of/platform.c index ac15d0e3d27d..b7cf84b29737 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -497,6 +497,12 @@ int of_platform_default_populate(struct device_node *root, EXPORT_SYMBOL_GPL(of_platform_default_populate); #ifndef CONFIG_PPC +static const struct of_device_id reserved_mem_matches[] = { + { .compatible = "qcom,rmtfs-mem" }, + { .compatible = "ramoops" }, + {} +}; + static int __init of_platform_default_populate_init(void) { struct device_node *node; @@ -505,15 +511,12 @@ static int __init of_platform_default_populate_init(void) return -ENODEV; /* - * Handle ramoops explicitly, since it is inside /reserved-memory, - * which lacks a "compatible" property. + * Handle certain compatibles explicitly, since we don't want to create + * platform_devices for every node in /reserved-memory with a + * "compatible", */ - node = of_find_node_by_path("/reserved-memory"); - if (node) { - node = of_find_compatible_node(node, NULL, "ramoops"); - if (node) - of_platform_device_create(node, NULL, NULL); - } + for_each_matching_node(node, reserved_mem_matches) + of_platform_device_create(node, NULL, NULL); /* Populate everything else. */ of_platform_default_populate(NULL, NULL, NULL); |