kernel/drivers/net/irda/sa1100_ir.c, branch linux-4.3.y

arm: sa1100: move irda header to linux/platform_data

2014-12-30T23:44:07Z

In the end asm/mach/irda.h header is not used by anybody except sa1100. Move the header to the platform data includes dir and rename it to irda-sa11x0.h. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: David S. Miller

net: irda: drop owner assignment from platform_drivers

2014-10-20T14:21:15Z

A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang

drivers/net/irda/sa1100_ir.c: fix error return code

2012-10-07T18:37:11Z

The function sa1100_irda_probe() return 0 for success and negative value for most of its internal tests failures. There is one exception that is error case going to err_mem_4:. For this error case, the function abort its success execution path, but returns non negative value, making it difficult for a caller function to notice the error. This patch fixes the error case that do not return negative value. This was found by Coccinelle, but the code change was made by hand. This patch is not robot generated. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // Signed-off-by: Peter Senna Tschudin Signed-off-by: David S. Miller

ARM: sa11x0: fix build errors from DMA engine API updates

2012-03-30T10:46:20Z

The recent merge of the sa11x0 code into mainline had silent conflicts with further development of the DMA engine API, leading to build errors and warnings: drivers/net/irda/sa1100_ir.c: In function 'sa1100_irda_dma_start': drivers/net/irda/sa1100_ir.c:151: error: too few arguments to function 'chan->device->device_prep_slave_sg' drivers/dma/sa11x0-dma.c: In function 'sa11x0_dma_probe': drivers/dma/sa11x0-dma.c:950: warning: assignment from incompatible pointer type Fix these. Signed-off-by: Russell King

NET: sa11x0-ir: add DMA support for SIR transmit mode

2012-03-07T11:46:19Z

As the DMA engine API allows DMA channels to be reconfigured on the fly, we can now support switching the DMA channel configuration to support SIR transmit DMA without needing to claim an additional physical DMA channel - thereby using up half the DMA channels just for one driver. Signed-off-by: Russell King

NET: sa11x0-ir: convert sa11x0-ir driver to use DMA engine API

2012-03-07T11:46:17Z

Convert the sa11x0 IrDA driver to use the sa11x0 DMA engine driver rather than our own platform specific DMA API. Signed-off-by: Russell King

NET: sa11x0-ir: split si->dev for IrDA transmit and receive buffers

2012-02-09T15:37:57Z

The sa11x0-ir device is not the device which is doing the DMA, the DMA is being performed by a separate DMA engine. Split the struct device associated with each DMA channel from the main struct device, but for the time being initialize it from the main struct device. This is another preparatory step to converting this driver to use the DMA engine API. Signed-off-by: Russell King

NET: sa11x0-ir: fix size of SIR transmit buffer

2012-02-09T15:37:57Z

The SIR transmit buffer was being allocated as 4000 bytes. IrDA now has constants for the buffer sizes, and defines the maximum wrapped SIR packet to be 4269 bytes as indicated by IRDA_SIR_MAX_FRAME. Use this definition to allocate the transmit buffer instead. Signed-off-by: Russell King

NET: sa11x0-ir: convert to use scatterlist DMA API

2012-02-09T15:37:57Z

Convert the sa11x0 IrDA driver to use the scatterlist DMA API. This is a preparatory patch for converting the driver to use the DMA engine API, which requires a struct scatterlist for every transfer. Signed-off-by: Russell King

NET: sa11x0-ir: get rid of si->hscr0

2012-02-09T15:37:56Z

si->hscr0 is initialized to zero, and never changed. Get rid of this redundant variable. Signed-off-by: Russell King