diff options
| author | Andreas Larsson <andreas@gaisler.com> | 2013-02-15 16:52:21 +0100 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2013-04-07 10:07:54 +0100 |
| commit | e8beacbb85a5c1de1117400c5ddb450514a8372c (patch) | |
| tree | 3853de80b818360820443a34eb22885224c5628f /drivers/spi/spi-fsl-lib.c | |
| parent | 58ad60bbb2abada33fbeae88943ab038e2fcc0ef (diff) | |
| download | lwn-e8beacbb85a5c1de1117400c5ddb450514a8372c.tar.gz lwn-e8beacbb85a5c1de1117400c5ddb450514a8372c.zip | |
spi/spi-fsl-spi: Make driver usable in CPU mode outside of an FSL_SOC environment
This makes the spi-fsl-spi driver usable in CPU mode outside of an FSL_SOC and
even an powerpc environment by moving CPM mode functionality to a separate file
that is only compiled and linked in an FSL_SOC environment and adding some
ifdefs to hide types and functions or provide alternatives.
For devicetree probing a "clock-frequency" property is used for clock frequency
instead of calls to FSL_SOC-specific functions.
Acked-by: Anton Vorontsov <anton@enomsg.org>
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/spi/spi-fsl-lib.c')
| -rw-r--r-- | drivers/spi/spi-fsl-lib.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/spi/spi-fsl-lib.c b/drivers/spi/spi-fsl-lib.c index 8ade675a04f1..a91db0e57b23 100644 --- a/drivers/spi/spi-fsl-lib.c +++ b/drivers/spi/spi-fsl-lib.c @@ -23,7 +23,9 @@ #include <linux/mm.h> #include <linux/of_platform.h> #include <linux/spi/spi.h> +#ifdef CONFIG_FSL_SOC #include <sysdev/fsl_soc.h> +#endif #include "spi-fsl-lib.h" @@ -208,6 +210,7 @@ int of_mpc8xxx_spi_probe(struct platform_device *ofdev) /* Allocate bus num dynamically. */ pdata->bus_num = -1; +#ifdef CONFIG_FSL_SOC /* SPI controller is either clocked from QE or SoC clock. */ pdata->sysclk = get_brgfreq(); if (pdata->sysclk == -1) { @@ -217,6 +220,11 @@ int of_mpc8xxx_spi_probe(struct platform_device *ofdev) goto err; } } +#else + ret = of_property_read_u32(np, "clock-frequency", &pdata->sysclk); + if (ret) + goto err; +#endif prop = of_get_property(np, "mode", NULL); if (prop && !strcmp(prop, "cpu-qe")) |