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path: root/drivers/spi/spi-tegra20-sflash.c
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Diffstat (limited to 'drivers/spi/spi-tegra20-sflash.c')
-rw-r--r--drivers/spi/spi-tegra20-sflash.c46
1 files changed, 9 insertions, 37 deletions
diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index 3d6a12b2af0..09df8e22dba 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -33,7 +33,6 @@
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/spi/spi.h>
-#include <linux/spi/spi-tegra.h>
#include <linux/clk/tegra.h>
#define SPI_COMMAND 0x000
@@ -439,23 +438,13 @@ static irqreturn_t tegra_sflash_isr(int irq, void *context_data)
return handle_cpu_based_xfer(tsd);
}
-static struct tegra_spi_platform_data *tegra_sflash_parse_dt(
- struct platform_device *pdev)
+static void tegra_sflash_parse_dt(struct tegra_sflash_data *tsd)
{
- struct tegra_spi_platform_data *pdata;
- struct device_node *np = pdev->dev.of_node;
- u32 max_freq;
-
- pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
- if (!pdata) {
- dev_err(&pdev->dev, "Memory alloc for pdata failed\n");
- return NULL;
- }
-
- if (!of_property_read_u32(np, "spi-max-frequency", &max_freq))
- pdata->spi_max_frequency = max_freq;
+ struct device_node *np = tsd->dev->of_node;
- return pdata;
+ 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[] = {
@@ -469,28 +458,15 @@ static int tegra_sflash_probe(struct platform_device *pdev)
struct spi_master *master;
struct tegra_sflash_data *tsd;
struct resource *r;
- struct tegra_spi_platform_data *pdata = pdev->dev.platform_data;
int ret;
const struct of_device_id *match;
- match = of_match_device(of_match_ptr(tegra_sflash_of_match),
- &pdev->dev);
+ match = of_match_device(tegra_sflash_of_match, &pdev->dev);
if (!match) {
dev_err(&pdev->dev, "Error: No device match found\n");
return -ENODEV;
}
- if (!pdata && pdev->dev.of_node)
- pdata = tegra_sflash_parse_dt(pdev);
-
- if (!pdata) {
- dev_err(&pdev->dev, "No platform data, exiting\n");
- return -ENODEV;
- }
-
- if (!pdata->spi_max_frequency)
- pdata->spi_max_frequency = 25000000; /* 25MHz */
-
master = spi_alloc_master(&pdev->dev, sizeof(*tsd));
if (!master) {
dev_err(&pdev->dev, "master allocation failed\n");
@@ -510,12 +486,9 @@ static int tegra_sflash_probe(struct platform_device *pdev)
tsd->dev = &pdev->dev;
spin_lock_init(&tsd->lock);
+ tegra_sflash_parse_dt(tsd);
+
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!r) {
- dev_err(&pdev->dev, "No IO memory resource\n");
- ret = -ENODEV;
- goto exit_free_master;
- }
tsd->base = devm_ioremap_resource(&pdev->dev, r);
if (IS_ERR(tsd->base)) {
ret = PTR_ERR(tsd->base);
@@ -538,7 +511,6 @@ static int tegra_sflash_probe(struct platform_device *pdev)
goto exit_free_irq;
}
- tsd->spi_max_frequency = pdata->spi_max_frequency;
init_completion(&tsd->xfer_completion);
pm_runtime_enable(&pdev->dev);
if (!pm_runtime_enabled(&pdev->dev)) {
@@ -658,7 +630,7 @@ static struct platform_driver tegra_sflash_driver = {
.name = "spi-tegra-sflash",
.owner = THIS_MODULE,
.pm = &slink_pm_ops,
- .of_match_table = of_match_ptr(tegra_sflash_of_match),
+ .of_match_table = tegra_sflash_of_match,
},
.probe = tegra_sflash_probe,
.remove = tegra_sflash_remove,