[PATCH V3 0/5] Add polling support for 64xx spi controller

[PATCH 1/5]: fixes the error handling in the interrupt handler [PATCH 2/5]: The existing driver support partial polling mode. This patch modifies the current driver to support only polling mode. [PATCH 3/5]: provision to support SoC's with dedicated i/o pins [PATCH 4/5]:

[PATCH V3 2/5] spi: s3c64xx: added support for polling mode

From: Girish K S girishks2...@gmail.com The 64xx spi driver supports partial polling mode. Only the last chunk of the transfer length is transferred or recieved in polling mode. Some SoC's that adopt this controller might not have have dma interface. This patch adds support for complete polling

[PATCH V3 3/5] spi: s3c64xx: Added provision for non-gpio i/o's

From: Girish K S girishks2...@gmail.com Currently the drivers supports only the GPIO based i/o pins. But there are Exynos SoC's that use the same controller with dedicated i/o pins. This patch provides provision to support gpio/dedicated pins. The decision is made by parsing the gpios property

[PATCH V3 4/5] spi: s3c64xx: Added provision for dedicated cs pin

From: Girish K S girishks2...@gmail.com The existing driver supports gpio based /cs signal. For controller's that have one device per controller, the slave device's /cs signal might be internally controlled by the chip select bit of slave select register. They are not externally

[PATCH V3 5/5] spi: s3c64xx: Added support for exynos5440 spi

From: Girish K S girishks2...@gmail.com This patch adds support for the exynos5440 spi controller. The integration of the spi IP in exynos5440 is different from other SoC's. The I/O pins are no more configured via gpio, they have dedicated pins. Signed-off-by: Girish K S ks.g...@samsung.com ---

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[PATCH -next] spi: remove unused variable in tegra_slink_read_rx_fifo_to_client_rxbuf()

From: Wei Yongjun yongjun_...@trendmicro.com.cn The variable bits_per_word is initialized but never used otherwise, so remove the unused variable. Signed-off-by: Wei Yongjun yongjun_...@trendmicro.com.cn --- drivers/spi/spi-tegra20-slink.c | 3 --- 1 file changed, 3 deletions(-) diff --git

[PATCH] spi: mpc512x-psc: optionally keep PSC SS asserted across xfer segmensts

Some SPI slave devices require asserted chip select signal across multiple transfer segments of an SPI message. Currently the driver always de-asserts the internal SS signal for every single transfer segment of the message and ignores the 'cs_change' flag of the transfer description. Disable the

[REPOST PATCH] spi: Unlock a spinlock before calling into the controller driver.

From: Bryan Freed bfr...@chromium.org spi_pump_messages() calls into a controller driver with unprepare_transfer_hardware() which is documented as This may sleep. As in the prepare_transfer_hardware() call below, we should release the queue_lock spinlock before making the call. Rework the logic a

Re: [PATCH -next] spi: remove unused variable in tegra_slink_read_rx_fifo_to_client_rxbuf()

On Wednesday 13 March 2013 06:59 PM, Wei Yongjun wrote: From: Wei Yongjun yongjun_...@trendmicro.com.cn The variable bits_per_word is initialized but never used otherwise, so remove the unused variable. Signed-off-by: Wei Yongjun yongjun_...@trendmicro.com.cn ---