diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-02 13:43:38 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-02 13:43:38 -0700 |
commit | 3883cbb6c1bda013a3ce2dbdab7dc97c52e4a232 (patch) | |
tree | 5b69f83b049d24ac81123ac954ca8c9128e48443 /drivers/dma | |
parent | d2033f2c1d1de2239ded15e478ddb4028f192a15 (diff) | |
parent | 1eb92b24e243085d242cf5ffd64829bba70972e1 (diff) |
Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC specific changes from Arnd Bergmann:
"These changes are all to SoC-specific code, a total of 33 branches on
17 platforms were pulled into this. Like last time, Renesas sh-mobile
is now the platform with the most changes, followed by OMAP and
EXYNOS.
Two new platforms, TI Keystone and Rockchips RK3xxx are added in this
branch, both containing almost no platform specific code at all, since
they are using generic subsystem interfaces for clocks, pinctrl,
interrupts etc. The device drivers are getting merged through the
respective subsystem maintainer trees.
One more SoC (u300) is now multiplatform capable and several others
(shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
towards that goal with this series but need more work.
Also noteworthy is the work on PCI here, which is traditionally part
of the SoC specific code. With the changes done by Thomas Petazzoni,
we can now more easily have PCI host controller drivers as loadable
modules and keep them separate from the platform code in
drivers/pci/host. This has already led to the discovery that three
platforms (exynos, spear and imx) are actually using an identical PCIe
host controller and will be able to share a driver once support for
spear and imx is added."
* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (480 commits)
ARM: integrator: let pciv3 use mem/premem from device tree
ARM: integrator: set local side PCI addresses right
ARM: dts: Add pcie controller node for exynos5440-ssdk5440
ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC
ARM: EXYNOS: Enable PCIe support for Exynos5440
pci: Add PCIe driver for Samsung Exynos
ARM: OMAP5: voltagedomain data: remove temporary OMAP4 voltage data
ARM: keystone: Move CPU bringup code to dedicated asm file
ARM: multiplatform: always pick one CPU type
ARM: imx: select syscon for IMX6SL
ARM: keystone: select ARM_ERRATA_798181 only for SMP
ARM: imx: Synertronixx scb9328 needs to select SOC_IMX1
ARM: OMAP2+: AM43x: resolve SMP related build error
dmaengine: edma: enable build for AM33XX
ARM: edma: Add EDMA crossbar event mux support
ARM: edma: Add DT and runtime PM support to the private EDMA API
dmaengine: edma: Add TI EDMA device tree binding
arm: add basic support for Rockchip RK3066a boards
arm: add debug uarts for rockchip rk29xx and rk3xxx series
arm: Add basic clocks for Rockchip rk3066a SoCs
...
Diffstat (limited to 'drivers/dma')
-rw-r--r-- | drivers/dma/Kconfig | 2 | ||||
-rw-r--r-- | drivers/dma/coh901318.c | 43 | ||||
-rw-r--r-- | drivers/dma/edma.c | 2 |
3 files changed, 45 insertions, 2 deletions
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index e9924898043..3215a3cb3de 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -213,7 +213,7 @@ config SIRF_DMA config TI_EDMA tristate "TI EDMA support" - depends on ARCH_DAVINCI + depends on ARCH_DAVINCI || ARCH_OMAP select DMA_ENGINE select DMA_VIRTUAL_CHANNELS default n diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c index 3b23061cdb4..9bfaddd57ef 100644 --- a/drivers/dma/coh901318.c +++ b/drivers/dma/coh901318.c @@ -22,6 +22,7 @@ #include <linux/uaccess.h> #include <linux/debugfs.h> #include <linux/platform_data/dma-coh901318.h> +#include <linux/of_dma.h> #include "coh901318.h" #include "dmaengine.h" @@ -1788,6 +1789,35 @@ bool coh901318_filter_id(struct dma_chan *chan, void *chan_id) } EXPORT_SYMBOL(coh901318_filter_id); +struct coh901318_filter_args { + struct coh901318_base *base; + unsigned int ch_nr; +}; + +static bool coh901318_filter_base_and_id(struct dma_chan *chan, void *data) +{ + struct coh901318_filter_args *args = data; + + if (&args->base->dma_slave == chan->device && + args->ch_nr == to_coh901318_chan(chan)->id) + return true; + + return false; +} + +static struct dma_chan *coh901318_xlate(struct of_phandle_args *dma_spec, + struct of_dma *ofdma) +{ + struct coh901318_filter_args args = { + .base = ofdma->of_dma_data, + .ch_nr = dma_spec->args[0], + }; + dma_cap_mask_t cap; + dma_cap_zero(cap); + dma_cap_set(DMA_SLAVE, cap); + + return dma_request_channel(cap, coh901318_filter_base_and_id, &args); +} /* * DMA channel allocation */ @@ -2735,12 +2765,19 @@ static int __init coh901318_probe(struct platform_device *pdev) if (err) goto err_register_memcpy; + err = of_dma_controller_register(pdev->dev.of_node, coh901318_xlate, + base); + if (err) + goto err_register_of_dma; + platform_set_drvdata(pdev, base); dev_info(&pdev->dev, "Initialized COH901318 DMA on virtual base 0x%08x\n", (u32) base->virtbase); return err; + err_register_of_dma: + dma_async_device_unregister(&base->dma_memcpy); err_register_memcpy: dma_async_device_unregister(&base->dma_slave); err_register_slave: @@ -2752,17 +2789,23 @@ static int coh901318_remove(struct platform_device *pdev) { struct coh901318_base *base = platform_get_drvdata(pdev); + of_dma_controller_free(pdev->dev.of_node); dma_async_device_unregister(&base->dma_memcpy); dma_async_device_unregister(&base->dma_slave); coh901318_pool_destroy(&base->pool); return 0; } +static const struct of_device_id coh901318_dt_match[] = { + { .compatible = "stericsson,coh901318" }, + {}, +}; static struct platform_driver coh901318_driver = { .remove = coh901318_remove, .driver = { .name = "coh901318", + .of_match_table = coh901318_dt_match, }, }; diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index cd7e3280fad..5f3e532436e 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -24,7 +24,7 @@ #include <linux/slab.h> #include <linux/spinlock.h> -#include <mach/edma.h> +#include <linux/platform_data/edma.h> #include "dmaengine.h" #include "virt-dma.h" |