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Ne manquez pas les éléments
On Wed, Apr 18, 2012 at 03:36:11PM +0300, Hannu Heikkinen wrote:
Use devm_* functions for managing devres resources.
Also use local espi_irq and remove irq variable from
struct ep93xx_spi.
Cc: mika.westerb...@iki.fi
Cc: grant.lik...@secretlab.ca
Signed-off-by: Hannu Heikkinen
On Wed, Apr 18, 2012 at 11:09:18AM -0500, H Hartley Sweeten wrote:
But, I really don't think we actually gain anything by displaying the
memory and irq. Maybe this would be more useful:
dev_info(pdev-dev, EP93xx SPI Controller using %s\n,
espi-dma_tx ? DMA : PIO);
Currently, if we request for frequency greater than maximum possible, spi driver
returns error.
For example, if the spi block src frequency is 333/4 MHz, i.e. 83.33.. MHz,
maximum frequency programmable would be src/2. Which would come around 41.6...
It is difficult to pass frequency in these
calculate_effective_freq() was still not optimized and there were cases when it
returned without error and with values of cpsr and scr as zero.
Also, the variable named found is not used well.
This patch targets to optimize and correct this routine. Tested for SPEAr.
Signed-off-by: Viresh Kumar
This patch adds dmaengine supporting using sh_dma driver. The module
receives data by DMAC, it also needs TX DMAC to generate SPI's clocks.
Signed-off-by: Yoshihiro Shimoda yoshihiro.shimoda...@renesas.com
---
drivers/spi/spi-rspi.c | 293 +-
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Lien de désinscription :
Use devm_* functions for managing devres resources.
Also use local variable irq and remove irq variable from
struct ep93xx_spi, as it is needed only in probe routine.
Acked-by: Mika Westerberg mika.westerb...@iki.fi
Acked-by: H Hartley Sweeten hswee...@visionengravers.com
Signed-off-by: Hannu
On Thu, Apr 19, 2012 at 8:18 AM, Viresh Kumar viresh.ku...@st.com wrote:
Currently, if we request for frequency greater than maximum possible, spi
driver
returns error.
For example, if the spi block src frequency is 333/4 MHz, i.e. 83.33.. MHz,
maximum frequency programmable would be
On Thu, Apr 19, 2012 at 07:22:53PM +0900, Shimoda, Yoshihiro wrote:
+static struct dma_async_tx_descriptor *rspi_dma_prep_sg(struct scatterlist
*sg,
+ void *buf, unsigned len, struct dma_chan *chan,
+ enum dma_transfer_direction dir)
+{
On Wed, Apr 18, 2012 at 09:30:33PM -0300, Fabio Estevam wrote:
On mxs SoCs the SSP controller can act as MMC or SPI controller.
Remove the SSP related definitions from the mxs-mmc driver and put it on a
common header file.
This will facilitate the introduction of the spi-mxs driver.
We
On Thu, Apr 19, 2012 at 11:59 PM, Shawn Guo shawn@linaro.org wrote:
We are trying to remove mach/*.h from drivers. And this patch moves
to the opposite direction.
Where would be a good location for ssp-regs.h then?
Regards,
Fabio Estevam
On 20 April 2012 11:07, Fabio Estevam feste...@gmail.com wrote:
On Thu, Apr 19, 2012 at 11:59 PM, Shawn Guo shawn@linaro.org wrote:
We are trying to remove mach/*.h from drivers. And this patch moves
to the opposite direction.
Where would be a good location for ssp-regs.h then?
On Wed, Apr 18, 2012 at 09:30:34PM -0300, Fabio Estevam wrote:
...
#define HW_SSP_VERSION (cpu_is_mx23() ? 0x110
: 0x130)
This is something needs a bit work (as well as mxs-mmc). The VERSION
register sits on different address between imx23 and imx28, so it loses
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Lien de désinscription :
This patch adds dmaengine supporting using sh_dma driver. The module
receives data by DMAC, it also needs TX DMAC to generate SPI's clocks.
Signed-off-by: Yoshihiro Shimoda yoshihiro.shimoda...@renesas.com
---
about v2:
- fix dma unmapping
- add checking of the return value of dma_map_sg()
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