Merge tag 'spi-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi Updates from Mark Brown:
 "A busy release for both cleanups and new drivers this time along with
  further factoring out of replicated code into the core:

   - Provide support in the core for DMA mapping transfers - essentially
     all drivers weren't implementing this properly, now there's no
     excuse.
   - Dual and quad mode support for spidev.
   - Fix handling of cs_change in the generic implementation.
   - Remove the S3C_DMA code from the s3c64xx driver now that all the
     platforms using it have been converted to dmaengine.
   - Lots of improvements to the Renesas SPI controllers.
   - Drivers for Allwinner A10 and A31, Qualcomm QUP and Xylinx xtfpga.
   - Removal of the bitrotted ti-ssp driver"

* tag 'spi-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (199 commits)
  spi: Fix handling of cs_change in core implementation
  spi: bitbang: Make spi_bitbang_stop() return void
  spi: mpc52xx: Convert to use bits_per_word_mask
  spi: omap-100k: Fix memory leak
  spi: dw: Don't call kfree for memory allocated by devm_kzalloc
  spi: fsl-dspi: Fix memory leak
  spi: omap-uwire: add missing iounmap
  spi: clps711x: Convert to use master->max_speed_hz
  spi: clps711x: Enable driver compilation with COMPILE_TEST
  spi: omap-uwire: Remove full duplex check
  spi: Do not require a completion
  spi: topcliff-pch: Transform noisy message to dev_vdbg
  spi: coldfire-qspi: Simplify the code to set register bits for transfer speed
  spi: bcm63xx: Remove unused define for PFX
  spi: efm32: use $vendor,$device scheme for compatible string
  spi: clps711x: Remove <mach/hardware.h> dependency
  spi: topcliff-pch: Properly unregister platform devices on probe() error paths
  spi: fsl-espi: Remove unused bits_per_word variable in fsl_espi_bufs
  spi: altera: Remove the code to get unused platform_data
  spi: fsl-lib: Fix memory leak of pinfo
  ...

1 files changed, 2 insertions, 12 deletions

diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 5e7389faa2a0..50f750989258 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -802,8 +802,7 @@ static int spi_davinci_get_pdata(struct platform_device *pdev,
 	pdata = &dspi->pdata;
 
 	pdata->version = SPI_VERSION_1;
-	match = of_match_device(of_match_ptr(davinci_spi_of_match),
-				&pdev->dev);
+	match = of_match_device(davinci_spi_of_match, &pdev->dev);
 	if (!match)
 		return -ENODEV;
 
@@ -824,7 +823,6 @@ static int spi_davinci_get_pdata(struct platform_device *pdev,
 	return 0;
 }
 #else
-#define davinci_spi_of_match NULL
 static struct davinci_spi_platform_data
 	*spi_davinci_get_pdata(struct platform_device *pdev,
 		struct davinci_spi *dspi)
@@ -864,10 +862,6 @@ static int davinci_spi_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, master);
 
 	dspi = spi_master_get_devdata(master);
-	if (dspi == NULL) {
-		ret = -ENOENT;
-		goto free_master;
-	}
 
 	if (dev_get_platdata(&pdev->dev)) {
 		pdata = dev_get_platdata(&pdev->dev);
@@ -908,10 +902,6 @@ static int davinci_spi_probe(struct platform_device *pdev)
 		goto free_master;
 
 	dspi->bitbang.master = master;
-	if (dspi->bitbang.master == NULL) {
-		ret = -ENODEV;
-		goto free_master;
-	}
 
 	dspi->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(dspi->clk)) {
@@ -1040,7 +1030,7 @@ static struct platform_driver davinci_spi_driver = {
 	.driver = {
 		.name = "spi_davinci",
 		.owner = THIS_MODULE,
-		.of_match_table = davinci_spi_of_match,
+		.of_match_table = of_match_ptr(davinci_spi_of_match),
 	},
 	.probe = davinci_spi_probe,
 	.remove = davinci_spi_remove,