spi: st-ssc4: Remove 'no clocking' hack
Due to the newly upstreamed 'critical clocks' API we can now
safely handle clocking in the SPI and I2C drivers without fear
of catastrophically crippling the running platform.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/spi/spi-st-ssc4.c b/drivers/spi/spi-st-ssc4.c
index d5adf9f..a56eca0 100644
--- a/drivers/spi/spi-st-ssc4.c
+++ b/drivers/spi/spi-st-ssc4.c
@@ -68,32 +68,6 @@
struct completion done;
};
-static int spi_st_clk_enable(struct spi_st *spi_st)
-{
- /*
- * Current platforms use one of the core clocks for SPI and I2C.
- * If we attempt to disable the clock, the system will hang.
- *
- * TODO: Remove this when platform supports power domains.
- */
- return 0;
-
- return clk_prepare_enable(spi_st->clk);
-}
-
-static void spi_st_clk_disable(struct spi_st *spi_st)
-{
- /*
- * Current platforms use one of the core clocks for SPI and I2C.
- * If we attempt to disable the clock, the system will hang.
- *
- * TODO: Remove this when platform supports power domains.
- */
- return;
-
- clk_disable_unprepare(spi_st->clk);
-}
-
/* Load the TX FIFO */
static void ssc_write_tx_fifo(struct spi_st *spi_st)
{
@@ -349,7 +323,7 @@
goto put_master;
}
- ret = spi_st_clk_enable(spi_st);
+ ret = clk_prepare_enable(spi_st->clk);
if (ret)
goto put_master;
@@ -408,7 +382,7 @@
return 0;
clk_disable:
- spi_st_clk_disable(spi_st);
+ clk_disable_unprepare(spi_st->clk);
put_master:
spi_master_put(master);
return ret;
@@ -419,7 +393,7 @@
struct spi_master *master = platform_get_drvdata(pdev);
struct spi_st *spi_st = spi_master_get_devdata(master);
- spi_st_clk_disable(spi_st);
+ clk_disable_unprepare(spi_st->clk);
pinctrl_pm_select_sleep_state(&pdev->dev);
@@ -435,7 +409,7 @@
writel_relaxed(0, spi_st->base + SSC_IEN);
pinctrl_pm_select_sleep_state(dev);
- spi_st_clk_disable(spi_st);
+ clk_disable_unprepare(spi_st->clk);
return 0;
}
@@ -446,7 +420,7 @@
struct spi_st *spi_st = spi_master_get_devdata(master);
int ret;
- ret = spi_st_clk_enable(spi_st);
+ ret = clk_prepare_enable(spi_st->clk);
pinctrl_pm_select_default_state(dev);
return ret;
