diff options
| author | Eric Paris <eparis@redhat.com> | 2014-03-07 20:41:32 +0400 |
|---|---|---|
| committer | Eric Paris <eparis@redhat.com> | 2014-03-07 20:41:32 +0400 |
| commit | b7d3622a39fde7658170b7f3cf6c6889bb8db30d (patch) | |
| tree | 64f4e781ecb2a85d675e234072b988560bcd25f1 /drivers/spi/spi-imx.c | |
| parent | f3411cb2b2e396a41ed3a439863f028db7140a34 (diff) | |
| parent | d8ec26d7f8287f5788a494f56e8814210f0e64be (diff) | |
| download | linux-b7d3622a39fde7658170b7f3cf6c6889bb8db30d.tar.xz | |
Merge tag 'v3.13' into for-3.15
Linux 3.13
Conflicts:
include/net/xfrm.h
Simple merge where v3.13 removed 'extern' from definitions and the audit
tree did s/u32/unsigned int/ to the same definitions.
Diffstat (limited to 'drivers/spi/spi-imx.c')
| -rw-r--r-- | drivers/spi/spi-imx.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 15323d8bd9cf..b80f2f70fef7 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -749,6 +749,35 @@ static void spi_imx_cleanup(struct spi_device *spi) { } +static int +spi_imx_prepare_message(struct spi_master *master, struct spi_message *msg) +{ + struct spi_imx_data *spi_imx = spi_master_get_devdata(master); + int ret; + + ret = clk_enable(spi_imx->clk_per); + if (ret) + return ret; + + ret = clk_enable(spi_imx->clk_ipg); + if (ret) { + clk_disable(spi_imx->clk_per); + return ret; + } + + return 0; +} + +static int +spi_imx_unprepare_message(struct spi_master *master, struct spi_message *msg) +{ + struct spi_imx_data *spi_imx = spi_master_get_devdata(master); + + clk_disable(spi_imx->clk_ipg); + clk_disable(spi_imx->clk_per); + return 0; +} + static int spi_imx_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; @@ -786,7 +815,7 @@ static int spi_imx_probe(struct platform_device *pdev) master->num_chipselect = num_cs; spi_imx = spi_master_get_devdata(master); - spi_imx->bitbang.master = spi_master_get(master); + spi_imx->bitbang.master = master; for (i = 0; i < master->num_chipselect; i++) { int cs_gpio = of_get_named_gpio(np, "cs-gpios", i); @@ -810,6 +839,8 @@ static int spi_imx_probe(struct platform_device *pdev) spi_imx->bitbang.txrx_bufs = spi_imx_transfer; spi_imx->bitbang.master->setup = spi_imx_setup; spi_imx->bitbang.master->cleanup = spi_imx_cleanup; + spi_imx->bitbang.master->prepare_message = spi_imx_prepare_message; + spi_imx->bitbang.master->unprepare_message = spi_imx_unprepare_message; spi_imx->bitbang.master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; init_completion(&spi_imx->xfer_done); @@ -872,6 +903,8 @@ static int spi_imx_probe(struct platform_device *pdev) dev_info(&pdev->dev, "probed\n"); + clk_disable(spi_imx->clk_ipg); + clk_disable(spi_imx->clk_per); return ret; out_clk_put: |