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| author | Per Forlin <per.friden@stericsson.com> | 2010-10-06 09:05:27 +0000 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2010-10-07 14:56:35 -0700 |
| commit | a59670a40b4dd497630f9442feb259dde601e469 (patch) | |
| tree | 2ed346ae4dbd94e271ffeac5badba2c1723d8775 /drivers/dma | |
| parent | 819504f4861a5bc1e25c82409956388bb79fb635 (diff) | |
| download | kernel_samsung_smdk4412-a59670a40b4dd497630f9442feb259dde601e469.zip kernel_samsung_smdk4412-a59670a40b4dd497630f9442feb259dde601e469.tar.gz kernel_samsung_smdk4412-a59670a40b4dd497630f9442feb259dde601e469.tar.bz2 | |
DMAENGINE: Set burst size for phy and log chans in ste_dma40 dev_control
Set burst for physical or logical channels respectively.
Convert the values in dma_cfg to dma reg bits
for physical or logical channels.
Signed-off-by: Per Forlin <per.forlin@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/ste_dma40.c | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index c07d989..ad8d6df 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -2246,14 +2246,25 @@ static void d40_set_runtime_config(struct dma_chan *chan, return; } - if (config_maxburst >= 16) - psize = STEDMA40_PSIZE_LOG_16; - else if (config_maxburst >= 8) - psize = STEDMA40_PSIZE_LOG_8; - else if (config_maxburst >= 4) - psize = STEDMA40_PSIZE_LOG_4; - else - psize = STEDMA40_PSIZE_LOG_1; + if (d40c->log_num != D40_PHY_CHAN) { + if (config_maxburst >= 16) + psize = STEDMA40_PSIZE_LOG_16; + else if (config_maxburst >= 8) + psize = STEDMA40_PSIZE_LOG_8; + else if (config_maxburst >= 4) + psize = STEDMA40_PSIZE_LOG_4; + else + psize = STEDMA40_PSIZE_LOG_1; + } else { + if (config_maxburst >= 16) + psize = STEDMA40_PSIZE_PHY_16; + else if (config_maxburst >= 8) + psize = STEDMA40_PSIZE_PHY_8; + else if (config_maxburst >= 4) + psize = STEDMA40_PSIZE_PHY_4; + else + psize = STEDMA40_PSIZE_PHY_1; + } /* Set up all the endpoint configs */ cfg->src_info.data_width = addr_width; @@ -2265,6 +2276,13 @@ static void d40_set_runtime_config(struct dma_chan *chan, cfg->dst_info.endianess = STEDMA40_LITTLE_ENDIAN; cfg->dst_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL; + /* Fill in register values */ + if (d40c->log_num != D40_PHY_CHAN) + d40_log_cfg(cfg, &d40c->log_def.lcsp1, &d40c->log_def.lcsp3); + else + d40_phy_cfg(cfg, &d40c->src_def_cfg, + &d40c->dst_def_cfg, false); + /* These settings will take precedence later */ d40c->runtime_addr = config_addr; d40c->runtime_direction = config->direction; |