diff options
| author | Robert Marklund <robert.marklund@stericsson.com> | 2011-03-22 10:14:24 +0100 |
|---|---|---|
| committer | Philippe Langlais <philippe.langlais@stericsson.com> | 2012-05-22 10:59:39 +0200 |
| commit | f1c1d5e930b06881b7307fccffd6144180b3bcd7 (patch) | |
| tree | 17d81ac74ab29d31deffa791b090895fa9edaa9a /drivers/spi | |
| parent | af9e55de8c6e4ab825ec9ad4fbd943a86cb6981c (diff) | |
amba-pl022: Initialize burstsize from FIFO trigger level
amba-pl022: support runtime PM
Signed-off-by: Robert Marklund <robert.marklund@stericsson.com>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-pl022.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index 400ae2121a2..7a137e9bde6 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -895,6 +895,12 @@ static int configure_dma(struct pl022 *pl022) struct dma_async_tx_descriptor *rxdesc; struct dma_async_tx_descriptor *txdesc; + /* DMA burstsize should be same as the FIFO trigger level */ + rx_conf.src_maxburst = pl022->rx_lev_trig ? 1 << + (pl022->rx_lev_trig + 1) : pl022->rx_lev_trig; + tx_conf.dst_maxburst = pl022->tx_lev_trig ? 1 << + (pl022->tx_lev_trig + 1) : pl022->tx_lev_trig; + /* Check that the channels are available */ if (!rxchan || !txchan) return -ENODEV; @@ -2048,6 +2054,9 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id) printk(KERN_INFO "pl022: mapped registers from 0x%08x to %p\n", adev->res.start, pl022->virtbase); + pm_runtime_enable(dev); + pm_runtime_resume(dev); + pl022->clk = clk_get(&adev->dev, NULL); if (IS_ERR(pl022->clk)) { status = PTR_ERR(pl022->clk); @@ -2158,6 +2167,7 @@ pl022_remove(struct amba_device *adev) clk_disable(pl022->clk); clk_unprepare(pl022->clk); clk_put(pl022->clk); + pm_runtime_disable(&adev->dev); iounmap(pl022->virtbase); amba_release_regions(adev); tasklet_disable(&pl022->pump_transfers); @@ -2260,6 +2270,14 @@ static struct vendor_data vendor_db5500_pl023 = { .loopback = true, }; +static struct vendor_data vendor_db5500_pl023 = { + .fifodepth = 32, + .max_bpw = 32, + .unidir = false, + .extended_cr = true, + .pl023 = true, +}; + static struct amba_id pl022_ids[] = { { /* |