spi: tegra20-sflash: Convert to use master->max_speed_hz

Use master->max_speed_hz instead of tspi->spi_max_frequency, so spi core will
handle checking transfer speed.

In additional, since commit 052eb2d49006 'spi: core: Set max_speed_hz of
spi_device default to max_speed_hz of controller',
spi core will also set default spi->max_speed_hz if it is not set.
So remove tegra_sflash_setup().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 3 insertions, 21 deletions

diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index 08794977f21a..c60d5df054ee 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -121,7 +121,6 @@ struct tegra_sflash_data {
         struct reset_control                    *rst;
         void __iomem                            *base;
         unsigned                                irq;
-        u32                                     spi_max_frequency;
         u32                                     cur_speed;
 
         struct spi_device                       *cur_spi;
@@ -315,15 +314,6 @@ static int tegra_sflash_start_transfer_one(struct spi_device *spi,
         return tegra_sflash_start_cpu_based_transfer(tsd, t);
 }
 
-static int tegra_sflash_setup(struct spi_device *spi)
-{
-        struct tegra_sflash_data *tsd = spi_master_get_devdata(spi->master);
-
-        /* Set speed to the spi max fequency if spi device has not set */
-        spi->max_speed_hz = spi->max_speed_hz ? : tsd->spi_max_frequency;
-        return 0;
-}
-
 static int tegra_sflash_transfer_one_message(struct spi_master *master,
                         struct spi_message *msg)
 {
@@ -430,15 +420,6 @@ static irqreturn_t tegra_sflash_isr(int irq, void *context_data)
         return handle_cpu_based_xfer(tsd);
 }
 
-static void tegra_sflash_parse_dt(struct tegra_sflash_data *tsd)
-{
-        struct device_node *np = tsd->dev->of_node;
-
-        if (of_property_read_u32(np, "spi-max-frequency",
-                                        &tsd->spi_max_frequency))
-                tsd->spi_max_frequency = 25000000; /* 25MHz */
-}
-
 static struct of_device_id tegra_sflash_of_match[] = {
         { .compatible = "nvidia,tegra20-sflash", },
         {}
@@ -467,7 +448,6 @@ static int tegra_sflash_probe(struct platform_device *pdev)
 
         /* the spi->mode bits understood by this driver: */
         master->mode_bits = SPI_CPOL | SPI_CPHA;
-        master->setup = tegra_sflash_setup;
         master->transfer_one_message = tegra_sflash_transfer_one_message;
         master->auto_runtime_pm = true;
         master->num_chipselect = MAX_CHIP_SELECT;
@@ -479,7 +459,9 @@ static int tegra_sflash_probe(struct platform_device *pdev)
         tsd->dev = &pdev->dev;
         spin_lock_init(&tsd->lock);
 
-        tegra_sflash_parse_dt(tsd);
+        if (of_property_read_u32(tsd->dev->of_node, "spi-max-frequency",
+                                 &master->max_speed_hz))
+                master->max_speed_hz = 25000000; /* 25MHz */
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         tsd->base = devm_ioremap_resource(&pdev->dev, r);