From 1f0a5cbf61a54504236bbbe2c98b58e85f90e650 Mon Sep 17 00:00:00 2001 From: Liviu Dudau Date: Thu, 6 Nov 2014 17:20:12 +0000 Subject: dmaengine: Fix allocation size for PL330 data buffer depth. The datasheet for PL330 says that the data buffer value in the CRD register is 10bits wide. However, the value stored is "minus one", which the driver corrects for. Maximum value that the data buffer depth can have is 1024 lines, which requires 11 bits for storage. While making updates I found printing the peripheral ID as a hex value to be more useful as the datasheet shows the values that way. Signed-off-by: Liviu Dudau Signed-off-by: Vinod Koul --- drivers/dma/pl330.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index e13b51a4650..19a99743cf5 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -271,7 +271,7 @@ struct pl330_config { #define DMAC_MODE_NS (1 << 0) unsigned int mode; unsigned int data_bus_width:10; /* In number of bits */ - unsigned int data_buf_dep:10; + unsigned int data_buf_dep:11; unsigned int num_chan:4; unsigned int num_peri:6; u32 peri_ns; @@ -2741,7 +2741,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) dev_info(&adev->dev, - "Loaded driver for PL330 DMAC-%d\n", adev->periphid); + "Loaded driver for PL330 DMAC-%x\n", adev->periphid); dev_info(&adev->dev, "\tDBUFF-%ux%ubytes Num_Chans-%u Num_Peri-%u Num_Events-%u\n", pcfg->data_buf_dep, pcfg->data_bus_width / 8, pcfg->num_chan, -- cgit v1.2.3-70-g09d2