aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/spi/spi-tegra20-slink.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/spi/spi-tegra20-slink.c')
-rw-r--r--drivers/spi/spi-tegra20-slink.c19
1 files changed, 3 insertions, 16 deletions
diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index be3a069879c3..eb5b771e1575 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -171,7 +171,6 @@ struct tegra_slink_data {
171 void __iomem *base; 171 void __iomem *base;
172 phys_addr_t phys; 172 phys_addr_t phys;
173 unsigned irq; 173 unsigned irq;
174 u32 spi_max_frequency;
175 u32 cur_speed; 174 u32 cur_speed;
176 175
177 struct spi_device *cur_spi; 176 struct spi_device *cur_spi;
@@ -761,10 +760,6 @@ static int tegra_slink_setup(struct spi_device *spi)
761 spi->mode & SPI_CPHA ? "" : "~", 760 spi->mode & SPI_CPHA ? "" : "~",
762 spi->max_speed_hz); 761 spi->max_speed_hz);
763 762
764 BUG_ON(spi->chip_select >= MAX_CHIP_SELECT);
765
766 /* Set speed to the spi max fequency if spi device has not set */
767 spi->max_speed_hz = spi->max_speed_hz ? : tspi->spi_max_frequency;
768 ret = pm_runtime_get_sync(tspi->dev); 763 ret = pm_runtime_get_sync(tspi->dev);
769 if (ret < 0) { 764 if (ret < 0) {
770 dev_err(tspi->dev, "pm runtime failed, e = %d\n", ret); 765 dev_err(tspi->dev, "pm runtime failed, e = %d\n", ret);
@@ -999,15 +994,6 @@ static irqreturn_t tegra_slink_isr(int irq, void *context_data)
999 return IRQ_WAKE_THREAD; 994 return IRQ_WAKE_THREAD;
1000} 995}
1001 996
1002static void tegra_slink_parse_dt(struct tegra_slink_data *tspi)
1003{
1004 struct device_node *np = tspi->dev->of_node;
1005
1006 if (of_property_read_u32(np, "spi-max-frequency",
1007 &tspi->spi_max_frequency))
1008 tspi->spi_max_frequency = 25000000; /* 25MHz */
1009}
1010
1011static const struct tegra_slink_chip_data tegra30_spi_cdata = { 997static const struct tegra_slink_chip_data tegra30_spi_cdata = {
1012 .cs_hold_time = true, 998 .cs_hold_time = true,
1013}; 999};
@@ -1053,7 +1039,6 @@ static int tegra_slink_probe(struct platform_device *pdev)
1053 master->unprepare_message = tegra_slink_unprepare_message; 1039 master->unprepare_message = tegra_slink_unprepare_message;
1054 master->auto_runtime_pm = true; 1040 master->auto_runtime_pm = true;
1055 master->num_chipselect = MAX_CHIP_SELECT; 1041 master->num_chipselect = MAX_CHIP_SELECT;
1056 master->bus_num = -1;
1057 1042
1058 platform_set_drvdata(pdev, master); 1043 platform_set_drvdata(pdev, master);
1059 tspi = spi_master_get_devdata(master); 1044 tspi = spi_master_get_devdata(master);
@@ -1062,7 +1047,9 @@ static int tegra_slink_probe(struct platform_device *pdev)
1062 tspi->chip_data = cdata; 1047 tspi->chip_data = cdata;
1063 spin_lock_init(&tspi->lock); 1048 spin_lock_init(&tspi->lock);
1064 1049
1065 tegra_slink_parse_dt(tspi); 1050 if (of_property_read_u32(tspi->dev->of_node, "spi-max-frequency",
1051 &master->max_speed_hz))
1052 master->max_speed_hz = 25000000; /* 25MHz */
1066 1053
1067 r = platform_get_resource(pdev, IORESOURCE_MEM, 0); 1054 r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1068 if (!r) { 1055 if (!r) {