- 23 Dec, 2011 38 commits
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Padmavathi Venna authored
As SPI platform devices are consolidated to plat-samsung, some corresponding changes are required in the respective machine folder. Setup files are added for SPI GPIO configurations and platform data initialization. Signed-off-by:
Padmavathi Venna <padma.v@samsung.com> Signed-off-by:
Kukjin Kim <kgene.kim@samsung.com>
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Padmavathi Venna authored
SPI platform device definitions consolidated from respective machine folder to plat-samsung Signed-off-by:
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Padmavathi Venna authored
SPI bus clocks can be avoided passing through platform data as spi driver is getting the bus clock using the generic clock connection id registered via clkdev. Signed-off-by:
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Padmavathi Venna authored
Registered the SPI bus clocks with clkdev using generic connection id. Signed-off-by:
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Padmavathi Venna authored
Registered the SPI bus clocks with clkdev using generic connection id. Signed-off-by:
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Padmavathi Venna authored
Registered the SPI bus clocks with clkdev using generic connection id. Signed-off-by:
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Padmavathi Venna authored
Registered the SPI bus clocks with clkdev using generic connection id. Signed-off-by:
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Padmavathi Venna authored
This patch modifies the driver to stop depending on the clock names being passed from platform and switch over to lookup clocks generic names using clkdev Signed-off-by:
Grant Likely <grant.likely@secretlab.ca> Signed-off-by:
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Rajeshwari Shinde authored
This patch modifies the driver to stop depending on the clock names being passed from the platform and switch over to bus clock lookup using generic clock names. Signed-off-by:
Rajeshwari Shinde <rajeshwari.s@samsung.com> Acked-by:
Chris Ball <cjb@laptop.org> Signed-off-by:
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Rajeshwari Shinde authored
Add support for lookup of sdhci-s3c controller clocks using generic names for s3c2416, s3c64xx, s5pc100, s5pv210 and exynos4 SoC's. Signed-off-by:
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Rajeshwari Shinde authored
The bus clocks previously sent through platform data to SDHCI controller are removed. Signed-off-by:
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Thomas Abraham authored
Add initial dts file for EXYNOS4210 SoC. This dts file describes the SoC specific devices and properties. Along with this, add dts file for Samsung's SMDKV310 board and Insignal's ORIGEN board which uses the EXYNOS4210 dts file and extends it to describe the board specific properties. Signed-off-by:
Thomas Abraham <thomas.abraham@linaro.org> Acked-by:
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Thomas Abraham authored
Add a new EXYNOS4 compatible device tree enabled board file. Boards based on the EXYNOS4 family of SoC's can use this as the machine/board file. When using this machine fike, a corresponding device tree blob which describes the board's properties should be supplied at boot time to the kernel. Signed-off-by:
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Thomas Abraham authored
Add device tree based discovery support for Samsung's rtc controller. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Thomas Abraham authored
Add device tree based discovery support for Samsung's keypad controller. Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Donghwa Lee <dh09.lee@samsung.com> Signed-off-by:
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Thomas Abraham authored
With the 'struct dma_pl330_peri' removed, the platfrom data for dma driver can be simplified to a simple list of peripheral request ids. Cc: Jassi Brar <jassisinghbrar@gmail.com> Acked-by:
Boojin Kim <boojin.kim@samsung.com> Signed-off-by:
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Thomas Abraham authored
With the 'struct dma_pl330_peri' removed, the platfrom data for dma driver can be simplified to a simple list of peripheral request ids. Cc: Jassi Brar <jassisinghbrar@gmail.com> Acked-by:
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Thomas Abraham authored
With the 'struct dma_pl330_peri' removed, the platfrom data for dma driver can be simplified to a simple list of peripheral request ids. Cc: Jassi Brar <jassisinghbrar@gmail.com> Cc: Boojin Kim <boojin.kim@samsung.com> Signed-off-by:
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Thomas Abraham authored
PDMA controllers when instantiated from device tree are registered using amba_device_register(). The registration process enables clock to the controllers to read the peripheral id of the PDMA amba device. In case of Exynos4, the clocks to the PDMA controllers are named as 'dma' but amba_device_register() looks up the clock using the name 'apb_pclk'. Hence, alias clocks with name 'apb_pclk' clock are created for clocks with name 'dma'. Signed-off-by:
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Thomas Abraham authored
The pl330 device instances and associated platform data is required only for non-device-tree builds. With device tree enabled, the data about the platform is obtained from the device tree. For images that include both dt and non-dt platforms, an addditional check is added to ensure that static amba device registrations is applicable to only non-dt platforms. Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
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Thomas Abraham authored
A new dma request id 'DMACH_DT_PROP' is introduced for client drivers requesting a dma channel. This request indicates that a device tree node property represting the dma channel is available in 'struct samsung_dma_info'. The dma channel request wrapper uses the node property value as the value for the filter parameter. Signed-off-by:
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Thomas Abraham authored
For PL330 dma controllers instantiated from device tree, the channel lookup is based on phandle of the dma controller and dma request id specified by the client node. During probe, the private data of each channel of the controller is set to point to the device node of the dma controller. The 'chan_id' of the each channel is used as the dma request id. Client driver requesting dma channels specify the phandle of the dma controller and the request id. The pl330 filter function converts the phandle to the device node pointer and matches that with channel's private data. If a match is found, the request id from the client node and the 'chan_id' of the channel is matched. A channel is found if both the values match. Acked-by:
Jassi Brar <jassisinghbrar@gmail.com> Acked-by:
Rob Herring <rob.herring@calxeda.com> Acked-by:
Vinod Koul <vinod.koul@intel.com> Signed-off-by:
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Thomas Abraham authored
With the 'struct dma_pl330_peri' removed, the platfrom data for dma driver can be simplified to a simple list of peripheral request ids. Cc: Jassi Brar <jassisinghbrar@gmail.com> Acked-by:
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Thomas Abraham authored
The transfer direction for a channel can be inferred from the transfer request and the need for specifying transfer direction in platfrom data can be eliminated. So the structure definition 'struct dma_pl330_peri' is no longer required. The channel's private data is set to point to a channel id specified in the platform data (instead of an instance of type 'struct dma_pl330_peri'). The filter function is correspondingly modified to match the channel id. With the 'struct dma_pl330_peri' removed from platform data, the dma controller transfer capabilities cannot be inferred any more. Hence, the dma controller capabilities is specified using platform data. Acked-by:
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Thomas Abraham authored
The dma channel selection filter function is moved from plat-samsung into the pl330 driver. In additon to that, a check is added in the filter function to ensure that the channel on which the filter has been invoked is pl330 channel instance (and avoid any incorrect access of chan->private in a system with multiple types of DMA drivers). Suggested-by:
Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by:
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Mark Brown authored
exynos4120_serial_drv_data is only defined when building with support for Exynos4210 so use the already provided define to ensure that we don't reference it when building for other SoCs. Signed-off-by:
Mark Brown <broonie@opensource.wolfsonmicro.com> [kgene.kim@samsung.com: Fixed build warning] Signed-off-by:
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Thomas Abraham authored
Add device tree based discovery support for Samsung's uart controller. Cc: Ben Dooks <ben-linux@fluff.org> Acked-by:
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Thomas Abraham authored
With reset port, set clock and get clock functions in SoC specific extentions being removed, only the driver probe is left over in these extensions. The probe function itself can be merged into one and moved into the samsung common serial driver. With driver probe also moved, all the SoC specific extentions are no longer required and they are deleted. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Thomas Abraham authored
The port reset function in each of the platform specific extension performs the same operations and hence all the reset port functions can be merged into one and moved into the common samsung uart driver. The SoC specific port reset functions are removed from SoC extensions. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Thomas Abraham authored
Samsung uart driver lookups the clock using the connection id 'clk_uart_baud'. The uart clocks for all Samsung platforms are reorganized to register them with the lookup name as required by the uart driver. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Thomas Abraham authored
With clkdev based clock lookup support, the clock set and get operation using clock names communicated between the samsung uart driver and the SoC specific extension can be removed. In addition to that, for each platform specific extension, add the default clock selection, number of clock options for uart baud generator, clock selection bit mask and shift values which is required by the clkdev support in samsung uart driver. The default clock selection value 'def_clk_sel' specifies the default clock to be used as the source clock for baud rate generator in case the platform code does not specify the same. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Thomas Abraham authored
With clkdev based clock lookup added to samsung serial driver, the use of 'struct s3c24xx_uart_clksrc' to supply clock names in platform data is removed from all the Samsung platform code. Cc: Ben Dooks <ben-linux@fluff.org> Cc: Ramax Lo <ramaxlo@gmail.com> Cc: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by:
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Thomas Abraham authored
Instead of using clock names supplied in platform data, use a generic clock name 'clk_uart_baud' to look up clocks. The platform code should register clocks with the name 'clk_uart_baud' which can be used by the baud rate generator. The clock lookup and selection of the best clock as baud rate clock is reworked. Platform code can specify the clocks that can be used as source for the baud clock (as supported previously by passing names of clocks). A new member is added to the platform data 'clk_sel' which holds a bit-field value with each bit representing a baud source clock. If a bit at any bit position is set, that clock is looked up to participate in the selection of the baud clock source. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Thomas Abraham authored
s3c2440 uses fclk/n (fclk divided by n) clock as one of the possible clocks used to generate the baud rate clock. The divider 'n' in this case can be logically represented outside of the uart controller. This patch creates a new clock by name "fclk_n" for s3c2440 based platforms to represent the fclk/n clock in the platform code. This clock provides a get_rate callback that checks the UCON0/1/2 registers to determine the clock rate. The samsung uart driver would receive the "fclk_n" clock name as one of the possible baud rate clock options and the driver need not determine clock rate of fclk/n. Cc: Ben Dooks <ben-linux@fluff.org> Cc: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by:
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Thomas Abraham authored
Add a pointer to the location of the platform data in the driver's private data. When instantiated using device tree, pdev->dev->platform_data does not necessarily point to a valid instance of platform data. The platform data pointer in the driver's private data could be set to pdev->dev->platform_data or platform data instance created from device tree. Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Thomas Abraham authored
As gpio chips get registered, a device tree node which represents the gpio chip is searched and attached to it. A translate function is also provided to convert the gpio specifier into actual platform settings for pin function selection, pull up/down and driver strength settings. Signed-off-by:
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Thomas Abraham authored
Enable conversion of device tree interrupt specifier to linux virq domain for GIC controller. Signed-off-by:
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Thomas Abraham authored
The timer irqs statically mapped from linux irq numbers 11 to 15 are moved to the end of the statically mapped linux irq space. The GIC PPI and SPI interrupts are relocated to start from 16 and 32 of the linux irq space. This is a required to add device tree support for GIC and Interrupt combiner for EXYNOS4. A new macro 'IRQ_TIMER_BASE' specifies a platform specific base of the linux virq number for the timer interrupts. For exynos4, this base is set to end of the linux virq space. For the other S5P platforms, the existing base '11' is retained. Signed-off-by:
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- 17 Dec, 2011 1 commit
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Linus Torvalds authored
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- 16 Dec, 2011 1 commit
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Linus Torvalds authored
This reverts commit eb1711bb. It blows up the i915 seqno tracking, resulting in the BUG_ON(seqno == 0); in i915_wait_request() triggering, which will cause lock-ups. See for example https://bugs.launchpad.net/ubuntu/+source/linux/+bug/903010 https://lkml.org/lkml/2011/12/14/395Reported-requested-and-tested-by:
Dirk Hohndel <dirk@hohndel.org> Reported-by:
Richard Eames <Richard.Eames@flinders.edu.au> Reported-by:
Rocko Requin <rockorequin@hotmail.com> Acked-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dave Airlie <airlied@redhat.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Keith Packard <keithp@keithp.com> Cc: Eric Anholt <eric@anholt.net> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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