Re: [PATCH 2/5] spi: pl022: use generic DMA slave configuration if possible

On Tuesday 29 January 2013, Andy Shevchenko wrote: +static int pl022_dma_autoprobe(struct pl022 *pl022) +{ + struct device *dev = pl022-adev-dev; + + /* automatically configure DMA channels from platform, normally using DT */ + pl022-dma_rx_channel =

[PATCH v2 2/6] of: Return -ENXIO from of_parse_phandle_with_args for too large index and return errors from of_gpio_named_count

This lets of_gpio_named_count return an errno on errors by being able to distinguish between reaching the end of the phandle list and getting some other error from of_parse_phandle_with_args. Return error from of_spi_register_master when there is an cs-gpios list for which gp_gpio_named_count

[PATCH v2 0/6] of, of_gpio, of_spi: Bugfix and improve of_parse_phandle_with_args, of_gpio_named_count and of_spi_register_master

This patch series fixes a bug where of_gpio_named count relied upon a return value that was no longer returned from of_parse_phandle_with_args and adds the possibility for of_gpio_named_count to return error values. In addition, for of_spi_register_master it fixes a bug, adds documentation, adds

[PATCH v2 1/6] of: Return -EEXIST from of_parse_phandle_with_args for holes in phandle list

Return value for an empty phandle was -EEXIST before commit 15c9a0ac, that changed the return value in this case to -ENOENT. However, of_gpio_named_count relies upon the return value to be -EEXIST and relies upon being able to distinguish this case from the case of no list at all which also

[PATCH v2 3/6] of_spi: Initialize cs_gpios properly

Using memset does not set an array of integers properly Signed-off-by: Andreas Larsson andr...@gaisler.com --- drivers/spi/spi.c |3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 9c2acf1..a4baa0a 100644 --- a/drivers/spi/spi.c

[PATCH v2 4/6] of_spi: Document cs_gpios and cs_gpio in kernel-doc

This adds missing kernel-doc entries for cs_gpios in struct spi_master and cs_gpio in struct spi_device. Signed-off-by: Andreas Larsson andr...@gaisler.com --- include/linux/spi/spi.h |2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/include/linux/spi/spi.h

[PATCH v2 6/6] of_spi: Initialize cs_gpios and cs_gpio with -EEXIST

Holes in the cs-gpios DT phandle list is supposed to mark that native chipselects is to be used. The value returned from of_get_named_gpio_flags in this case is -EEXIST. By initializing cs_gpios and cs_gpio with -EEXIST, this and only this errno will indicate to a spi controller driver that a

Re: [PATCH v5 07/14] dmaengine: add dma_request_slave_channel_compat()

On Wed, Jan 23, 2013 at 10:28:46PM +, Arnd Bergmann wrote: On Tuesday 15 January 2013, Matt Porter wrote: Adds a dma_request_slave_channel_compat() wrapper which accepts both the arguments from dma_request_channel() and dma_request_slave_channel(). Based on whether the driver is

Re: [PATCH v5 03/14] ARM: edma: add AM33XX support to the private EDMA API

On Mon, Jan 28, 2013 at 09:27:24PM +0200, Andy Shevchenko wrote: On Tue, Jan 15, 2013 at 10:32 PM, Matt Porter mpor...@ti.com wrote: Adds support for parsing the TI EDMA DT data into the required EDMA private API platform data. Enables runtime PM support to initialize the EDMA hwmod. Adds

[PATCH v6 04/10] dmaengine: edma: enable build for AM33XX

Enable TI EDMA option on OMAP. Signed-off-by: Matt Porter mpor...@ti.com --- drivers/dma/Kconfig |2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 0b408bb..239020b 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@

[PATCH v6 03/10] ARM: edma: add AM33XX support to the private EDMA API

Adds support for parsing the TI EDMA DT data into the required EDMA private API platform data. Enables runtime PM support to initialize the EDMA hwmod. Adds AM33XX EMDA crossbar event mux support. Signed-off-by: Matt Porter mpor...@ti.com Acked-by: Sekhar Nori nsek...@ti.com ---

[PATCH v6 01/10] ARM: davinci: move private EDMA API to arm/common

Move mach-davinci/dma.c to common/edma.c so it can be used by OMAP (specifically AM33xx) as well. This just moves the private EDMA API and enables it to build on OMAP. Signed-off-by: Matt Porter mpor...@ti.com Acked-by: Sekhar Nori nsek...@ti.com --- arch/arm/Kconfig

[PATCH v6 02/10] ARM: edma: remove unused transfer controller handlers

Fix build on OMAP, the irqs are undefined on AM33xx. These error interrupt handlers were hardcoded as disabled so since they are unused code, simply remove them. Signed-off-by: Matt Porter mpor...@ti.com Acked-by: Sekhar Nori nsek...@ti.com --- arch/arm/common/edma.c | 37

[PATCH v6 05/10] dmaengine: edma: Add TI EDMA device tree binding

The binding definition is based on the generic DMA controller binding. Signed-off-by: Matt Porter mpor...@ti.com --- Documentation/devicetree/bindings/dma/ti-edma.txt | 49 + 1 file changed, 49 insertions(+) create mode 100644

[PATCH v6 06/10] ARM: dts: add AM33XX EDMA support

Adds AM33XX EDMA support to the am33xx.dtsi as documented in Documentation/devicetree/bindings/dma/ti-edma.txt Signed-off-by: Matt Porter mpor...@ti.com --- arch/arm/boot/dts/am33xx.dtsi | 20 1 file changed, 20 insertions(+) diff --git a/arch/arm/boot/dts/am33xx.dtsi

[PATCH v6 00/10] DMA Engine support for AM33XX

Changes since v5: - Dropped mmc portion and moved it to a separate series - Incorporate corrected version of dma_request_slave_channel_compat() - Fix #defines and enablement of TI_PRIV_EDMA option Changes since v4: - Fixed debug section mismatch in private edma api

[PATCH v6 07/10] dmaengine: add dma_request_slave_channel_compat()

Adds a dma_request_slave_channel_compat() wrapper which accepts both the arguments from dma_request_channel() and dma_request_slave_channel(). Based on whether the driver is instantiated via DT, the appropriate channel request call will be made. This allows for a much cleaner migration of drivers

[PATCH v6 10/10] ARM: dts: add AM33XX SPI DMA support

Adds DMA resources to the AM33XX SPI nodes. Signed-off-by: Matt Porter mpor...@ti.com --- arch/arm/boot/dts/am33xx.dtsi | 10 ++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index e711ffb..ddf702a 100644 ---

[PATCH v6 08/10] spi: omap2-mcspi: convert to dma_request_slave_channel_compat()

Convert dmaengine channel requests to use dma_request_slave_channel_compat(). This supports the DT case of platforms requiring channel selection from either the OMAP DMA or the EDMA engine. AM33xx only boots from DT and is the only user implementing EDMA so in the !DT case we can default to the

[PATCH v6 09/10] spi: omap2-mcspi: add generic DMA request support to the DT binding

The binding definition is based on the generic DMA request binding Signed-off-by: Matt Porter mpor...@ti.com --- Documentation/devicetree/bindings/spi/omap-spi.txt | 27 +++- 1 file changed, 26 insertions(+), 1 deletion(-) diff --git

Re: [PATCH v5 03/14] ARM: edma: add AM33XX support to the private EDMA API

On Wed, Jan 30, 2013 at 8:41 AM, Matt Porter mpor...@ti.com wrote: On Mon, Jan 28, 2013 at 09:27:24PM +0200, Andy Shevchenko wrote: On Tue, Jan 15, 2013 at 10:32 PM, Matt Porter mpor...@ti.com wrote: Adds support for parsing the TI EDMA DT data into the required EDMA private API platform