spi: dw: use managed resources

Migrate mmio code and core driver to managed resources to reduce boilerplate
error handling code. Also, handle clk_enable() failure while at it, and drop
unused dw_spi iolen field.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h
index 5a5cd02ddb13..587643dae11e 100644
--- a/drivers/spi/spi-dw.h
+++ b/drivers/spi/spi-dw.h
@@ -92,13 +92,11 @@ struct dw_spi_dma_ops {
 struct dw_spi {
         struct spi_master       *master;
         struct spi_device       *cur_dev;
-        struct device           *parent_dev;
         enum dw_ssi_type        type;
         char                    name[16];
 
         void __iomem            *regs;
         unsigned long           paddr;
-        u32                     iolen;
         int                     irq;
         u32                     fifo_len;       /* depth of the FIFO buffer */
         u32                     max_freq;       /* max bus freq supported */
@@ -230,7 +228,7 @@ struct dw_spi_chip {
         void (*cs_control)(u32 command);
 };
 
-extern int dw_spi_add_host(struct dw_spi *dws);
+extern int dw_spi_add_host(struct device *dev, struct dw_spi *dws);
 extern void dw_spi_remove_host(struct dw_spi *dws);
 extern int dw_spi_suspend_host(struct dw_spi *dws);
 extern int dw_spi_resume_host(struct dw_spi *dws);