[PATCH 0/8] Improve Rx/Tx DMA implementation

Bhuvanchandra DV (5): tty: serial: fsl_lpuart: Fix broken 8m/s1 support tty: serial: fsl-lpuart: Use cyclic DMA for Rx tty: serial: fsl-lpuart: Use scatter/gather DMA for Tx Drop PIO to DMA switching and use scatter/gather DMA for Tx path to improve performance. tty: serial: fsl

[PATCH 7/8] tty: serial: fsl-lpuart: Update suspend/resume for DMA mode

and start the DMA at resume. Signed-off-by: Bhuvanchandra DV <bhuvanchandra...@toradex.com> --- drivers/tty/serial/fsl_lpuart.c | 44 + 1 file changed, 44 insertions(+) diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 2

[PATCH 2/8] tty: serial: fsl_lpuart: support suspend/resume

From: Stefan Agner In order to allow wake support in STOP sleep mode, clocks are needed. Use imx_clk_gate2_cgr to disable automatic clock gating in low power mode STOP. This allows to enable wake by UART using: echo enabled > /sys/class/tty/ttyLP0/power/wakeup However, if wake

[PATCH 2/8] tty: serial: fsl_lpuart: support suspend/resume

From: Stefan Agner In order to allow wake support in STOP sleep mode, clocks are needed. Use imx_clk_gate2_cgr to disable automatic clock gating in low power mode STOP. This allows to enable wake by UART using: echo enabled > /sys/class/tty/ttyLP0/power/wakeup However, if wake is not enabled,

[PATCH 0/8] Improve Rx/Tx DMA implementation

Bhuvanchandra DV (5): tty: serial: fsl_lpuart: Fix broken 8m/s1 support tty: serial: fsl-lpuart: Use cyclic DMA for Rx tty: serial: fsl-lpuart: Use scatter/gather DMA for Tx Drop PIO to DMA switching and use scatter/gather DMA for Tx path to improve performance. tty: serial: fsl

[PATCH 7/8] tty: serial: fsl-lpuart: Update suspend/resume for DMA mode

and start the DMA at resume. Signed-off-by: Bhuvanchandra DV --- drivers/tty/serial/fsl_lpuart.c | 44 + 1 file changed, 44 insertions(+) diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 27687d5..134090a 100644 --- a/drivers

[PATCH 3/8] tty: serial: fsl_lpuart: fix clearing of receive flag

From: Stefan Agner Commit 8e4934c6d6c6 ("tty: serial: fsl_lpuart: clear receive flag on FIFO flush") implemented clearing of the receive flag by reading the status register only. It turned out that even though we flush the FIFO afterwards, a explicit read of the data

[PATCH 4/8] tty: serial: fsl_lpuart: Fix broken 8m/s1 support

By default the driver always configure the mode as 8s1 even when 8m1 mode is selected. Fix this by adding support to control the space/mark bit. Signed-off-by: Bhuvanchandra DV <bhuvanchandra...@toradex.com> --- drivers/tty/serial/fsl_lpuart.c | 9 +++-- 1 file changed, 7 insertions

[PATCH 3/8] tty: serial: fsl_lpuart: fix clearing of receive flag

From: Stefan Agner Commit 8e4934c6d6c6 ("tty: serial: fsl_lpuart: clear receive flag on FIFO flush") implemented clearing of the receive flag by reading the status register only. It turned out that even though we flush the FIFO afterwards, a explicit read of the data register is still required.

[PATCH 4/8] tty: serial: fsl_lpuart: Fix broken 8m/s1 support

By default the driver always configure the mode as 8s1 even when 8m1 mode is selected. Fix this by adding support to control the space/mark bit. Signed-off-by: Bhuvanchandra DV --- drivers/tty/serial/fsl_lpuart.c | 9 +++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git

[PATCH] drm/panel: Add display timings for TPK U.S.A. LLC Fusion 7", 10.1" panels

Add support for TPK U.S.A. LLC Fusion 7", 10.1" panels to the DRM simple panel driver. Signed-off-by: Bhuvanchandra DV <bhuvanchandra...@toradex.com> --- This patch is based on top of Stefan's clock polarity patches[1] [1] https://lkml.org/lkml/2016/5/5/20 .../bindings/displa

[PATCH] drm/panel: Add display timings for TPK U.S.A. LLC Fusion 7", 10.1" panels

Add support for TPK U.S.A. LLC Fusion 7", 10.1" panels to the DRM simple panel driver. Signed-off-by: Bhuvanchandra DV --- This patch is based on top of Stefan's clock polarity patches[1] [1] https://lkml.org/lkml/2016/5/5/20 .../bindings/display/panel/tpk,f07a-0102.txt

Re: [RFC 1/2] spi: spidev: Use 'new_id' sysfs file for enabling spidev

On 04/20/2016 05:47 PM, Mark Brown wrote: On Wed, Apr 20, 2016 at 05:43:32PM +0530, Bhuvanchandra DV wrote: SPI drivers bind to the device as configured in DT, but in case of spidev(non DT approach) the device is not available in hand to bind the driver. So tried this approach of creating

Re: [RFC 1/2] spi: spidev: Use 'new_id' sysfs file for enabling spidev

On 04/20/2016 05:47 PM, Mark Brown wrote: On Wed, Apr 20, 2016 at 05:43:32PM +0530, Bhuvanchandra DV wrote: SPI drivers bind to the device as configured in DT, but in case of spidev(non DT approach) the device is not available in hand to bind the driver. So tried this approach of creating

Re: [RFC 1/2] spi: spidev: Use 'new_id' sysfs file for enabling spidev

On 04/18/2016 06:31 PM, Mark Brown wrote: On Mon, Apr 18, 2016 at 04:48:27PM +0530, Bhuvanchandra DV wrote: +++ b/Documentation/ABI/testing/sysfs-bus-spi-spidev @@ -0,0 +1,8 @@ +What: /sys/bus/spi/drivers/spidev/new_id +Date: March 2016 +Description

Re: [RFC 1/2] spi: spidev: Use 'new_id' sysfs file for enabling spidev

On 04/18/2016 06:31 PM, Mark Brown wrote: On Mon, Apr 18, 2016 at 04:48:27PM +0530, Bhuvanchandra DV wrote: +++ b/Documentation/ABI/testing/sysfs-bus-spi-spidev @@ -0,0 +1,8 @@ +What: /sys/bus/spi/drivers/spidev/new_id +Date: March 2016 +Description

[RFC 2/2] spi core: Add new sysfs 'num_chipselect' file

Add new sysfs 'num_chipselect' file to expose the maximum number of chipselects a SPI master can support. This allows to create a script in user space which automatically creates a new spidev instance for every chipselect on a bus. Signed-off-by: Bhuvanchandra DV <bhuvanchandra...@toradex.

[RFC 1/2] spi: spidev: Use 'new_id' sysfs file for enabling spidev

by Greg. [1] http://thread.gmane.org/gmane.linux.kernel.spi.devel/20331/focus=20369 Suggested-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> Signed-off-by: Bhuvanchandra DV <bhuvanchandra...@toradex.com> Signed-off-by: Stefan Agner <stefan.ag...@toradex.com> --- Documentation

[RFC 2/2] spi core: Add new sysfs 'num_chipselect' file

Add new sysfs 'num_chipselect' file to expose the maximum number of chipselects a SPI master can support. This allows to create a script in user space which automatically creates a new spidev instance for every chipselect on a bus. Signed-off-by: Bhuvanchandra DV Signed-off-by: Stefan Agner

[RFC 1/2] spi: spidev: Use 'new_id' sysfs file for enabling spidev

by Greg. [1] http://thread.gmane.org/gmane.linux.kernel.spi.devel/20331/focus=20369 Suggested-by: Greg Kroah-Hartman Signed-off-by: Bhuvanchandra DV Signed-off-by: Stefan Agner --- Documentation/ABI/testing/sysfs-bus-spi-spidev | 8 +++ drivers/spi/spidev.c | 75

[RFC 0/2] sysfs new_id file support for spidev

This patchset adds support for loading spidev via sysfs new_id file. Any comments/suggestions welcome! Bhuvanchandra DV (2): spi: spidev: Use 'new_id' sysfs file for enabling spidev spi core: Add new sysfs 'num_chipselect' file Documentation/ABI/testing/sysfs-bus-spi-spidev | 8

[RFC 0/2] sysfs new_id file support for spidev

This patchset adds support for loading spidev via sysfs new_id file. Any comments/suggestions welcome! Bhuvanchandra DV (2): spi: spidev: Use 'new_id' sysfs file for enabling spidev spi core: Add new sysfs 'num_chipselect' file Documentation/ABI/testing/sysfs-bus-spi-spidev | 8

[PATCH] spi: fsl-dspi: Set max_speed_hz for master

Calculate and update max speed from bus clock for SoC's using DSPI IP. The bus clock factor's are taken from the data sheet's of respective SoC's. Signed-off-by: Bhuvanchandra DV <bhuvanchandra...@toradex.com> --- drivers/spi/spi-fsl-dspi.c | 7 +++ 1 file changed, 7 insertions(+)

[PATCH] spi: fsl-dspi: Set max_speed_hz for master

Calculate and update max speed from bus clock for SoC's using DSPI IP. The bus clock factor's are taken from the data sheet's of respective SoC's. Signed-off-by: Bhuvanchandra DV --- drivers/spi/spi-fsl-dspi.c | 7 +++ 1 file changed, 7 insertions(+) diff --git a/drivers/spi/spi-fsl

[PATCH] ARM: dts: colibri-vf: Add pinmux for UART_0 aka UART_A RTS/CTS pins

Add pinmux for UART_A RTS, CTS pin's. Signed-off-by: Bhuvanchandra DV <bhuvanchandra...@toradex.com> Acked-by: Stefan Agner <ste...@agner.ch> --- arch/arm/boot/dts/vf-colibri.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/vf-colibri.dtsi b/arch/arm

[PATCH] ARM: dts: colibri-vf: Add pinmux for UART_0 aka UART_A RTS/CTS pins

Add pinmux for UART_A RTS, CTS pin's. Signed-off-by: Bhuvanchandra DV Acked-by: Stefan Agner --- arch/arm/boot/dts/vf-colibri.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/vf-colibri.dtsi b/arch/arm/boot/dts/vf-colibri.dtsi index e5949b9..700840f 100644

Re: [PATCH] ARM: dts: vf-colibri-eval-v3: Use enable-gpios for BL_ON

Ping! On 01/09/2016 12:29 PM, Bhuvanchandra DV wrote: Use pwm-backlight driver 'enable-gpios' property for backlight on/off control. Signed-off-by: Bhuvanchandra DV --- arch/arm/boot/dts/vf-colibri.dtsi | 9 + 1 file changed, 9 insertions(+) diff --git a/arch/arm/boot/dts/vf

Re: [PATCH] ARM: dts: vf-colibri-eval-v3: Use enable-gpios for BL_ON

Ping! On 01/09/2016 12:29 PM, Bhuvanchandra DV wrote: Use pwm-backlight driver 'enable-gpios' property for backlight on/off control. Signed-off-by: Bhuvanchandra DV <bhuvanchandra...@toradex.com> --- arch/arm/boot/dts/vf-colibri.dtsi | 9 + 1 file changed, 9 insertions(+)

Re: [PATCH v2] spi-fsl-dspi: Fix CTAR Register access

On 12/10/2015 12:45 PM, Alexander Stein wrote: On Thursday 10 December 2015 11:25:30, Bhuvanchandra DV wrote: DSPI instances in Vybrid have a different amount of chip selects and CTARs (Clock and transfer Attributes Register). In case of DSPI1 we only have 2 CTAR registers and 4 CS. In present

Re: [PATCH v2] spi-fsl-dspi: Fix CTAR Register access

On 12/10/2015 12:45 PM, Alexander Stein wrote: On Thursday 10 December 2015 11:25:30, Bhuvanchandra DV wrote: DSPI instances in Vybrid have a different amount of chip selects and CTARs (Clock and transfer Attributes Register). In case of DSPI1 we only have 2 CTAR registers and 4 CS. In present

[PATCH v2] spi-fsl-dspi: Fix CTAR Register access

that is not present, hence configure CTAS to use CTAR0. Signed-off-by: Bhuvanchandra DV --- drivers/spi/spi-fsl-dspi.c | 12 ++-- 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 59a1143..39412c9 100644 --- a/drivers/spi/spi

Re: [PATCH] spi-fsl-dspi: Fix CTAR Register access

On 12/10/2015 02:11 AM, Mark Brown wrote: On Wed, Dec 09, 2015 at 11:51:39AM +0530, Bhuvanchandra DV wrote: DSPI instances in Vybrid have a different amount of chip selects and CTARs (Clock and transfer Attributes Register). In case of DSPI1 we only have 2 CTAR registers and 4 CS. In present

Re: [PATCH] spi-fsl-dspi: Fix CTAR Register access

On 12/10/2015 02:11 AM, Mark Brown wrote: On Wed, Dec 09, 2015 at 11:51:39AM +0530, Bhuvanchandra DV wrote: DSPI instances in Vybrid have a different amount of chip selects and CTARs (Clock and transfer Attributes Register). In case of DSPI1 we only have 2 CTAR registers and 4 CS. In present

[PATCH v2] spi-fsl-dspi: Fix CTAR Register access

that is not present, hence configure CTAS to use CTAR0. Signed-off-by: Bhuvanchandra DV <bhuvanchandra...@toradex.com> --- drivers/spi/spi-fsl-dspi.c | 12 ++-- 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 59a1143..3

[PATCH] spi-fsl-dspi: Fix CTAR Register access

that is not present, hence configure CTAS to use CTAR0. Signed-off-by: Bhuvanchandra DV --- drivers/spi/spi-fsl-dspi.c | 14 +++--- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 01fa95b..b21c3c0 100644 --- a/drivers/spi/spi

[PATCH] spi-fsl-dspi: Fix CTAR Register access

that is not present, hence configure CTAS to use CTAR0. Signed-off-by: Bhuvanchandra DV <bhuvanchandra...@toradex.com> --- drivers/spi/spi-fsl-dspi.c | 14 +++--- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 0

[PATCH v2] vf610_adc: Fix internal temperature calculation

| VDDconv | ADCR@Temp25 | | 3.0V| 0.696mV |30 | 950 | | 3.3V| 0.699mV |33 | 867 | Acked-by: Fugang Duan Signed-off-by: Bhuvanchandra DV --- drivers/iio/adc/vf610_adc.c | 19 ++- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git

[PATCH v2] vf610_adc: Fix internal temperature calculation

| VDDconv | ADCR@Temp25 | | 3.0V| 0.696mV |30 | 950 | | 3.3V| 0.699mV |33 | 867 | Acked-by: Fugang Duan <b38...@freescale.com> Signed-off-by: Bhuvanchandra DV <bhuvanchandra...@toradex.com> --- drivers/iio/adc/vf610_adc.c | 19 ++-

Re: [PATCH] vf610_adc: Fix internal temperature calculation

Hi Stefan, Sorry! for the delay. On 10/08/2015 11:46 AM, Stefan Agner wrote: Hi Bhuvan, On 2015-09-23 06:43, Bhuvanchandra DV wrote: There is an observed temperature difference of ~20°C with the internal temperature reading and the temperature measured on SoC package. Existing calculations

Re: [PATCH] vf610_adc: Fix internal temperature calculation

Hi Stefan, Sorry! for the delay. On 10/08/2015 11:46 AM, Stefan Agner wrote: Hi Bhuvan, On 2015-09-23 06:43, Bhuvanchandra DV wrote: There is an observed temperature difference of ~20°C with the internal temperature reading and the temperature measured on SoC package. Existing calculations

Re: [PATCH] vf610_adc: Fix internal temperature calculation

Hi Fugang, On 09/27/2015 09:23 PM, Jonathan Cameron wrote: On 23/09/15 14:43, Bhuvanchandra DV wrote: There is an observed temperature difference of ~20°C with the internal temperature reading and the temperature measured on SoC package. Existing calculations consider the typical values

Re: [PATCH] vf610_adc: Fix internal temperature calculation

Hi Fugang, On 09/27/2015 09:23 PM, Jonathan Cameron wrote: On 23/09/15 14:43, Bhuvanchandra DV wrote: There is an observed temperature difference of ~20°C with the internal temperature reading and the temperature measured on SoC package. Existing calculations consider the typical values

[PATCH] vf610_adc: Fix internal temperature calculation

-by: Bhuvanchandra DV --- drivers/iio/adc/vf610_adc.c | 19 ++- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c index f4df2a7..e7abc13 100644 --- a/drivers/iio/adc/vf610_adc.c +++ b/drivers/iio/adc/vf610_adc.c

[PATCH] vf610_adc: Fix internal temperature calculation

-by: Bhuvanchandra DV <bhuvanchandra...@toradex.com> --- drivers/iio/adc/vf610_adc.c | 19 ++- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c index f4df2a7..e7abc13 100644 --- a/drivers/iio/adc/vf610

Re: [PATCH V2 2/3] tty: serial: fsl_lpuart: remove RTS/CTS control from set/get_mctrl

On 06/08/2015 02:42 PM, Russell King - ARM Linux wrote: On Mon, Jun 01, 2015 at 10:51:06AM +0530, Bhuvanchandra DV wrote: +/* + * CTS/RTS can _only_ be handled + * automatically by the hardware. + */ That's really not acceptable. You need to do something here so that you can

Re: [PATCH V2 2/3] tty: serial: fsl_lpuart: remove RTS/CTS control from set/get_mctrl

Hello, On 06/08/2015 12:11 PM, Uwe Kleine-König wrote: Hello, On Mon, Jun 01, 2015 at 10:51:06AM +0530, Bhuvanchandra DV wrote: The LPUART does not provide manual control of RTS/CTS signals, those can only be controlled by the hardware directly. Therefore manual control of those signals

Re: [PATCH V2 2/3] tty: serial: fsl_lpuart: remove RTS/CTS control from set/get_mctrl

On 06/08/2015 02:42 PM, Russell King - ARM Linux wrote: On Mon, Jun 01, 2015 at 10:51:06AM +0530, Bhuvanchandra DV wrote: +/* + * CTS/RTS can _only_ be handled + * automatically by the hardware. + */ That's really not acceptable. You need to do something here so that you can

Re: [PATCH V2 2/3] tty: serial: fsl_lpuart: remove RTS/CTS control from set/get_mctrl

Hello, On 06/08/2015 12:11 PM, Uwe Kleine-König wrote: Hello, On Mon, Jun 01, 2015 at 10:51:06AM +0530, Bhuvanchandra DV wrote: The LPUART does not provide manual control of RTS/CTS signals, those can only be controlled by the hardware directly. Therefore manual control of those signals

Re: [PATCH V2 0/3] Add RS-485 support and fix RTS/CTS implementation

Hello, Ping! On 06/01/2015 10:51 AM, Bhuvanchandra DV wrote: Changes since V1: Use common get/set mctrl control methods for both lpuart, lpuart32 and fix indention. Bhuvanchandra DV (3): ARM: dts: colibri-vf: Add pinmux for UART_0 aka UART_A RTS/CTS pins tty: serial: fsl_lpuart: remove

Re: [PATCH V2 0/3] Add RS-485 support and fix RTS/CTS implementation

Hello, Ping! On 06/01/2015 10:51 AM, Bhuvanchandra DV wrote: Changes since V1: Use common get/set mctrl control methods for both lpuart, lpuart32 and fix indention. Bhuvanchandra DV (3): ARM: dts: colibri-vf: Add pinmux for UART_0 aka UART_A RTS/CTS pins tty: serial: fsl_lpuart: remove

[PATCH V2 3/3] tty: serial: fsl_lpuart: Add support for RS-485

Enable Vybrid's build-in support for RS-485 auto RTS for controlling line direction of RS-485 transceiver driver. Signed-off-by: Bhuvanchandra DV --- drivers/tty/serial/fsl_lpuart.c | 56 + 1 file changed, 56 insertions(+) diff --git a/drivers/tty/serial

[PATCH V2 1/3] ARM: dts: colibri-vf: Add pinmux for UART_0 aka UART_A RTS/CTS pins

Signed-off-by: Bhuvanchandra DV --- arch/arm/boot/dts/vf-colibri.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/vf-colibri.dtsi b/arch/arm/boot/dts/vf-colibri.dtsi index 68ca125..ad6c5ca 100644 --- a/arch/arm/boot/dts/vf-colibri.dtsi +++ b/arch/arm/boot/dts/vf

[PATCH V2 2/3] tty: serial: fsl_lpuart: remove RTS/CTS control from set/get_mctrl

, hence remove the incorrect implementation. Signed-off-by: Bhuvanchandra DV --- drivers/tty/serial/fsl_lpuart.c | 63 + 1 file changed, 7 insertions(+), 56 deletions(-) diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index

[PATCH V2 0/3] Add RS-485 support and fix RTS/CTS implementation

Changes since V1: Use common get/set mctrl control methods for both lpuart, lpuart32 and fix indention. Bhuvanchandra DV (3): ARM: dts: colibri-vf: Add pinmux for UART_0 aka UART_A RTS/CTS pins tty: serial: fsl_lpuart: remove RTS/CTS control from set/get_mctrl tty: serial: fsl_lpuart: Add

[PATCH V2 3/3] tty: serial: fsl_lpuart: Add support for RS-485

Enable Vybrid's build-in support for RS-485 auto RTS for controlling line direction of RS-485 transceiver driver. Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- drivers/tty/serial/fsl_lpuart.c | 56 + 1 file changed, 56 insertions

[PATCH V2 1/3] ARM: dts: colibri-vf: Add pinmux for UART_0 aka UART_A RTS/CTS pins

Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- arch/arm/boot/dts/vf-colibri.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/vf-colibri.dtsi b/arch/arm/boot/dts/vf-colibri.dtsi index 68ca125..ad6c5ca 100644 --- a/arch/arm/boot/dts/vf-colibri.dtsi

[PATCH V2 2/3] tty: serial: fsl_lpuart: remove RTS/CTS control from set/get_mctrl

, hence remove the incorrect implementation. Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- drivers/tty/serial/fsl_lpuart.c | 63 + 1 file changed, 7 insertions(+), 56 deletions(-) diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty

[PATCH V2 0/3] Add RS-485 support and fix RTS/CTS implementation

Changes since V1: Use common get/set mctrl control methods for both lpuart, lpuart32 and fix indention. Bhuvanchandra DV (3): ARM: dts: colibri-vf: Add pinmux for UART_0 aka UART_A RTS/CTS pins tty: serial: fsl_lpuart: remove RTS/CTS control from set/get_mctrl tty: serial: fsl_lpuart: Add

Re: [PATCH 3/3] tty: serial: fsl_lpuart: Add support for RS-485

On 05/29/2015 03:48 PM, Jakub Kiciński wrote: On Fri, 29 May 2015 13:35:54 +0530, Bhuvanchandra DV wrote: Enable Vybrid's build-in support for RS-485 auto RTS for controlling line direction of RS-485 transceiver driver. Signed-off-by: Bhuvanchandra DV --- drivers/tty/serial/fsl_lpuart.c

Re: [PATCH 2/3] tty: serial: fsl_lpuart: remove RTS/CTS control from set/get_mctrl

Hello Jakub, On 05/29/2015 03:34 PM, Jakub Kiciński wrote: On Fri, 29 May 2015 13:35:53 +0530, Bhuvanchandra DV wrote: The LPUART does not provide manual control of RTS/CTS signals, those can only be controlled by the hardware directly. Therefore manual control of those signals through mctrl

[PATCH 2/3] tty: serial: fsl_lpuart: remove RTS/CTS control from set/get_mctrl

, hence remove the incorrect implementation. Signed-off-by: Bhuvanchandra DV --- drivers/tty/serial/fsl_lpuart.c | 56 - 1 file changed, 10 insertions(+), 46 deletions(-) diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index

[PATCH 1/3] ARM: dts: colibri-vf: Add pinmux for UART_0 aka UART_A RTS/CTS pins

Signed-off-by: Bhuvanchandra DV --- arch/arm/boot/dts/vf-colibri.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/vf-colibri.dtsi b/arch/arm/boot/dts/vf-colibri.dtsi index 68ca125..ad6c5ca 100644 --- a/arch/arm/boot/dts/vf-colibri.dtsi +++ b/arch/arm/boot/dts/vf

[PATCH 0/3] Add RS-485 support and fix RTS/CTS implementation

- Add pinmux for UART_0 RTS/CTS pins. - Since hardware can handle RTS/CTS flow control automatically, remove manual control of RTS/CTS from set/get mctrl. - Add RS-485 support for Vybird platform. Bhuvanchandra DV (3): ARM: dts: colibri-vf: Add pinmux for UART_0 aka UART_A RTS/CTS pins

[PATCH 3/3] tty: serial: fsl_lpuart: Add support for RS-485

Enable Vybrid's build-in support for RS-485 auto RTS for controlling line direction of RS-485 transceiver driver. Signed-off-by: Bhuvanchandra DV --- drivers/tty/serial/fsl_lpuart.c | 60 + 1 file changed, 60 insertions(+) diff --git a/drivers/tty/serial

[PATCH 0/3] Add RS-485 support and fix RTS/CTS implementation

- Add pinmux for UART_0 RTS/CTS pins. - Since hardware can handle RTS/CTS flow control automatically, remove manual control of RTS/CTS from set/get mctrl. - Add RS-485 support for Vybird platform. Bhuvanchandra DV (3): ARM: dts: colibri-vf: Add pinmux for UART_0 aka UART_A RTS/CTS pins

[PATCH 3/3] tty: serial: fsl_lpuart: Add support for RS-485

Enable Vybrid's build-in support for RS-485 auto RTS for controlling line direction of RS-485 transceiver driver. Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- drivers/tty/serial/fsl_lpuart.c | 60 + 1 file changed, 60 insertions

[PATCH 1/3] ARM: dts: colibri-vf: Add pinmux for UART_0 aka UART_A RTS/CTS pins

Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- arch/arm/boot/dts/vf-colibri.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/vf-colibri.dtsi b/arch/arm/boot/dts/vf-colibri.dtsi index 68ca125..ad6c5ca 100644 --- a/arch/arm/boot/dts/vf-colibri.dtsi

[PATCH 2/3] tty: serial: fsl_lpuart: remove RTS/CTS control from set/get_mctrl

, hence remove the incorrect implementation. Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- drivers/tty/serial/fsl_lpuart.c | 56 - 1 file changed, 10 insertions(+), 46 deletions(-) diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty

Re: [PATCH 3/3] tty: serial: fsl_lpuart: Add support for RS-485

On 05/29/2015 03:48 PM, Jakub Kiciński wrote: On Fri, 29 May 2015 13:35:54 +0530, Bhuvanchandra DV wrote: Enable Vybrid's build-in support for RS-485 auto RTS for controlling line direction of RS-485 transceiver driver. Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- drivers

Re: [PATCH 2/3] tty: serial: fsl_lpuart: remove RTS/CTS control from set/get_mctrl

Hello Jakub, On 05/29/2015 03:34 PM, Jakub Kiciński wrote: On Fri, 29 May 2015 13:35:53 +0530, Bhuvanchandra DV wrote: The LPUART does not provide manual control of RTS/CTS signals, those can only be controlled by the hardware directly. Therefore manual control of those signals through mctrl

[PATCH] spi: fsl-dspi: Remove possible memory leak of 'chip'

Move the check for spi->bits_per_word before allocation, to avoid memory leak. Signed-off-by: Dan Carpenter Signed-off-by: Bhuvanchandra DV --- drivers/spi/spi-fsl-dspi.c | 13 +++-- 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/

[PATCH] spi: fsl-dspi: Remove possible memory leak of 'chip'

Move the check for spi-bits_per_word before allocation, to avoid memory leak. Signed-off-by: Dan Carpenter dan.carpen...@oracle.com Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- drivers/spi/spi-fsl-dspi.c | 13 +++-- 1 file changed, 7 insertions(+), 6 deletions

[PATCH V2] ARM: vf-colibri: add SPI support and enable MCP2515 CAN

MCP2515 CAN controller is available on Colibri Evaluation board. Hence enable MCP2515 CAN. Acked-by: Stefan Agner Signed-off-by: Bhuvanchandra DV --- arch/arm/boot/dts/vf-colibri-eval-v3.dtsi | 31 +++ arch/arm/boot/dts/vf-colibri.dtsi | 15

[PATCH V2] ARM: vf-colibri: add SPI support and enable MCP2515 CAN

MCP2515 CAN controller is available on Colibri Evaluation board. Hence enable MCP2515 CAN. Acked-by: Stefan Agner ste...@agner.ch Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- arch/arm/boot/dts/vf-colibri-eval-v3.dtsi | 31 +++ arch/arm/boot/dts/vf

[PATCH 0/7] Add SPI support for Colibri modules and DSPI driver fixes

- Add second dspi instance. - Enable MCP2515 CAN controller which is avaialble on Colibri evaluation board. - Respin the stalled patches of dspi fixes. Previous discussion at: http://comments.gmane.org/gmane.linux.ports.arm.kernel/359542 Bhuvanchandra DV (4): ARM: vf610: add second DSPI

[PATCH 7/7] spi: spi-fsl-dspi: Add support for TCFQ transfer mode

-by: Bhuvanchandra DV --- .../devicetree/bindings/spi/spi-fsl-dspi.txt | 2 + drivers/spi/spi-fsl-dspi.c | 74 +++--- 2 files changed, 68 insertions(+), 8 deletions(-) diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt b/Documentation

[PATCH 6/7] spi: spi-fsl-dspi: split the resuable code

From: Chao Fu Add two functions: - dspi_data_from_popr - dspi_data_to_pushr Signed-off-by: Bhuvanchandra DV --- drivers/spi/spi-fsl-dspi.c | 118 +++-- 1 file changed, 60 insertions(+), 58 deletions(-) diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers

[PATCH 5/7] spi: spi-fsl-dspi: Remove spi-bitbang

in the driver. Signed-off-by: Bhuvanchandra DV --- drivers/spi/Kconfig| 1 - drivers/spi/spi-fsl-dspi.c | 144 ++--- 2 files changed, 71 insertions(+), 74 deletions(-) diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 9982998..6316d6d 100644

[PATCH 3/7] spi: spi-fsl-dspi: Remove usage of devm_kzalloc

c80 r5:0006 [1.764399] r4:807a7bc8 [1.771813] [<80773d08>] (kernel_init_freeable) from [<8059f864>] (kernel_init+0x10/0xf0) [1.789660] r10:0000 r9:0000 r8: r7: r6: r5:8059f854 [1.807381] r4: [1.814668] [<8059f854&

[PATCH 4/7] spi: spi-fsl-dspi: avoid preparing the clock two times

Signed-off-by: Bhuvanchandra DV --- drivers/spi/spi-fsl-dspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 9b80d54..5378148 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -502,7

[PATCH 1/7] ARM: vf610: add second DSPI instance

Acked-by: Stefan Agner Signed-off-by: Bhuvanchandra DV --- arch/arm/boot/dts/vf500.dtsi | 4 arch/arm/boot/dts/vfxxx.dtsi | 11 +++ 2 files changed, 15 insertions(+) diff --git a/arch/arm/boot/dts/vf500.dtsi b/arch/arm/boot/dts/vf500.dtsi index 1dbf8d2..f5f807c 100644 --- a/arch

[PATCH 2/7] ARM: vf-colibri: add SPI support and enable MCP2515 CAN

MCP2515 CAN controller is available on Colibri Evaluation board. Hence enable MCP2515 CAN. Signed-off-by: Bhuvanchandra DV --- arch/arm/boot/dts/vf-colibri-eval-v3.dtsi | 31 +++ arch/arm/boot/dts/vf-colibri.dtsi | 15 +++ 2 files changed, 46

[PATCH 5/7] spi: spi-fsl-dspi: Remove spi-bitbang

the bitbang in the driver. Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- drivers/spi/Kconfig| 1 - drivers/spi/spi-fsl-dspi.c | 144 ++--- 2 files changed, 71 insertions(+), 74 deletions(-) diff --git a/drivers/spi/Kconfig b/drivers

[PATCH 7/7] spi: spi-fsl-dspi: Add support for TCFQ transfer mode

. Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- .../devicetree/bindings/spi/spi-fsl-dspi.txt | 2 + drivers/spi/spi-fsl-dspi.c | 74 +++--- 2 files changed, 68 insertions(+), 8 deletions(-) diff --git a/Documentation/devicetree

[PATCH 6/7] spi: spi-fsl-dspi: split the resuable code

From: Chao Fu b44...@freescale.com Add two functions: - dspi_data_from_popr - dspi_data_to_pushr Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- drivers/spi/spi-fsl-dspi.c | 118 +++-- 1 file changed, 60 insertions(+), 58 deletions

[PATCH 4/7] spi: spi-fsl-dspi: avoid preparing the clock two times

ste...@agner.ch Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- drivers/spi/spi-fsl-dspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 9b80d54..5378148 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b

[PATCH 1/7] ARM: vf610: add second DSPI instance

Acked-by: Stefan Agner ste...@agner.ch Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- arch/arm/boot/dts/vf500.dtsi | 4 arch/arm/boot/dts/vfxxx.dtsi | 11 +++ 2 files changed, 15 insertions(+) diff --git a/arch/arm/boot/dts/vf500.dtsi b/arch/arm/boot/dts/vf500

[PATCH 2/7] ARM: vf-colibri: add SPI support and enable MCP2515 CAN

MCP2515 CAN controller is available on Colibri Evaluation board. Hence enable MCP2515 CAN. Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- arch/arm/boot/dts/vf-colibri-eval-v3.dtsi | 31 +++ arch/arm/boot/dts/vf-colibri.dtsi | 15

[PATCH 3/7] spi: spi-fsl-dspi: Remove usage of devm_kzalloc

trace f7f1c89f62e53de9 ]--- Acked-by: Stefan Agner ste...@agner.ch Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- drivers/spi/spi-fsl-dspi.c | 14 -- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c

[PATCH 0/7] Add SPI support for Colibri modules and DSPI driver fixes

- Add second dspi instance. - Enable MCP2515 CAN controller which is avaialble on Colibri evaluation board. - Respin the stalled patches of dspi fixes. Previous discussion at: http://comments.gmane.org/gmane.linux.ports.arm.kernel/359542 Bhuvanchandra DV (4): ARM: vf610: add second DSPI

[PATCH] ARM: imx: clk-vf610: Add clock for UART4 and UART5

Add support for clock gating of UART4 and UART5. We use these UART's in a (not yet mainlined) device tree. Signed-off-by: Bhuvanchandra DV --- arch/arm/mach-imx/clk-vf610.c |2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-imx/clk-vf610.c b/arch/arm/mach-imx/clk-vf610.c

[PATCH] net: fec: Fix dual ethernet issue in VFxx

On i.MX28, the MDIO bus is shared between the two RMII interfaces. However, in newer designs, such as Vybrid, this is not the case. This patch adds a quirk for the single MDIO case. This allows to use both FEC interfaces working independently on Vybird. Signed-off-by: Bhuvanchandra DV

[PATCH] net: fec: Fix dual ethernet issue in VFxx

On i.MX28, the MDIO bus is shared between the two RMII interfaces. However, in newer designs, such as Vybrid, this is not the case. This patch adds a quirk for the single MDIO case. This allows to use both FEC interfaces working independently on Vybird. Signed-off-by: Bhuvanchandra DV

[PATCH] ARM: imx: clk-vf610: Add clock for UART4 and UART5

Add support for clock gating of UART4 and UART5. We use these UART's in a (not yet mainlined) device tree. Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- arch/arm/mach-imx/clk-vf610.c |2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-imx/clk-vf610.c b/arch

[RESEND PATCH V2 0/2] Add I2C and enable M41T0M6 RTC

Add I2C support on Colibri VFxx moduels and enable M41T0M6 RTC available on Colibri carrier boards. Bhuvanchandra DV (2): ARM: dts: vf-colibri: Add I2C support ARM: dts: vf-colibri-eval-v3.dts: Enable ST-M41T0M6 RTC arch/arm/boot/dts/vf-colibri-eval-v3.dtsi | 12 +++- arch/arm

[RESEND PATCH V2 2/2] ARM: dts: vf-colibri-eval-v3.dts: Enable ST-M41T0M6 RTC

ST-M41T0M6 is available on Colibri carrier boards. Hence enable M41T0M6 RTC. Acked-by: Stefan Agner Signed-off-by: Bhuvanchandra DV --- arch/arm/boot/dts/vf-colibri-eval-v3.dtsi |6 ++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi b/arch/arm

[RESEND PATCH V2 1/2] ARM: dts: vf-colibri: Add I2C support

Acked-by: Stefan Agner Signed-off-by: Bhuvanchandra DV --- arch/arm/boot/dts/vf-colibri-eval-v3.dtsi |6 +- arch/arm/boot/dts/vf-colibri.dtsi | 13 + 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi b/arch

[RESEND PATCH V2 0/2] Add I2C and enable M41T0M6 RTC

Add I2C support on Colibri VFxx moduels and enable M41T0M6 RTC available on Colibri carrier boards. Bhuvanchandra DV (2): ARM: dts: vf-colibri: Add I2C support ARM: dts: vf-colibri-eval-v3.dts: Enable ST-M41T0M6 RTC arch/arm/boot/dts/vf-colibri-eval-v3.dtsi | 12 +++- arch/arm

[RESEND PATCH V2 2/2] ARM: dts: vf-colibri-eval-v3.dts: Enable ST-M41T0M6 RTC

ST-M41T0M6 is available on Colibri carrier boards. Hence enable M41T0M6 RTC. Acked-by: Stefan Agner ste...@agner.ch Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- arch/arm/boot/dts/vf-colibri-eval-v3.dtsi |6 ++ 1 file changed, 6 insertions(+) diff --git a/arch/arm

[RESEND PATCH V2 1/2] ARM: dts: vf-colibri: Add I2C support

Acked-by: Stefan Agner ste...@agner.ch Signed-off-by: Bhuvanchandra DV bhuvanchandra...@toradex.com --- arch/arm/boot/dts/vf-colibri-eval-v3.dtsi |6 +- arch/arm/boot/dts/vf-colibri.dtsi | 13 + 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/arch/arm

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