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authorAlan Tull <atull@kernel.org>2018-05-16 18:49:55 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-05-25 18:23:55 +0200
commit7085e2a94f7df5f419e3cfb2fe809ce6564e9629 (patch)
treeb0609f2d091aae39e00609357d5e6de678887bef /drivers/fpga/machxo2-spi.c
parentbbaa9cd3a605e337cefc566e5ac1b110763c8d1c (diff)
downloadlinux-7085e2a94f7df5f419e3cfb2fe809ce6564e9629.tar.gz
fpga: manager: change api, don't use drvdata
Change fpga_mgr_register to not set or use drvdata. This supports the case where a PCIe device has more than one manager. Add fpga_mgr_create/free functions. Change fpga_mgr_register and fpga_mgr_unregister functions to take the mgr struct as their only parameter. struct fpga_manager *fpga_mgr_create(struct device *dev, const char *name, const struct fpga_manager_ops *mops, void *priv); void fpga_mgr_free(struct fpga_manager *mgr); int fpga_mgr_register(struct fpga_manager *mgr); void fpga_mgr_unregister(struct fpga_manager *mgr); Update the drivers that call fpga_mgr_register with the new API. Signed-off-by: Alan Tull <atull@kernel.org> [Moritz: Fixup whitespace issue] Reported-by: Jiuyue Ma <majiuyue@huawei.com> Signed-off-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/fpga/machxo2-spi.c')
-rw-r--r--drivers/fpga/machxo2-spi.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/fpga/machxo2-spi.c b/drivers/fpga/machxo2-spi.c
index 8e95ec9c5c9a..a582e0000c97 100644
--- a/drivers/fpga/machxo2-spi.c
+++ b/drivers/fpga/machxo2-spi.c
@@ -355,21 +355,33 @@ static const struct fpga_manager_ops machxo2_ops = {
static int machxo2_spi_probe(struct spi_device *spi)
{
struct device *dev = &spi->dev;
+ struct fpga_manager *mgr;
+ int ret;
if (spi->max_speed_hz > MACHXO2_MAX_SPEED) {
dev_err(dev, "Speed is too high\n");
return -EINVAL;
}
- return fpga_mgr_register(dev, "Lattice MachXO2 SPI FPGA Manager",
- &machxo2_ops, spi);
+ mgr = fpga_mgr_create(dev, "Lattice MachXO2 SPI FPGA Manager",
+ &machxo2_ops, spi);
+ if (!mgr)
+ return -ENOMEM;
+
+ spi_set_drvdata(spi, mgr);
+
+ ret = fpga_mgr_register(mgr);
+ if (ret)
+ fpga_mgr_free(mgr);
+
+ return ret;
}
static int machxo2_spi_remove(struct spi_device *spi)
{
- struct device *dev = &spi->dev;
+ struct fpga_manager *mgr = spi_get_drvdata(spi);
- fpga_mgr_unregister(dev);
+ fpga_mgr_unregister(mgr);
return 0;
}