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path: root/drivers/media/rc/st_rc.c
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Diffstat (limited to 'drivers/media/rc/st_rc.c')
-rw-r--r--drivers/media/rc/st_rc.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/media/rc/st_rc.c b/drivers/media/rc/st_rc.c
index 65120c2d47ad..8f0cddb9e8f2 100644
--- a/drivers/media/rc/st_rc.c
+++ b/drivers/media/rc/st_rc.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
+#include <linux/reset.h>
#include <media/rc-core.h>
#include <linux/pinctrl/consumer.h>
@@ -28,6 +29,7 @@ struct st_rc_device {
int sample_mult;
int sample_div;
bool rxuhfmode;
+ struct reset_control *rstc;
};
/* Registers */
@@ -161,6 +163,10 @@ static void st_rc_hardware_init(struct st_rc_device *dev)
unsigned int rx_max_symbol_per = MAX_SYMB_TIME;
unsigned int rx_sampling_freq_div;
+ /* Enable the IP */
+ if (dev->rstc)
+ reset_control_deassert(dev->rstc);
+
clk_prepare_enable(dev->sys_clock);
baseclock = clk_get_rate(dev->sys_clock);
@@ -271,6 +277,11 @@ static int st_rc_probe(struct platform_device *pdev)
else
rc_dev->rx_base = rc_dev->base;
+
+ rc_dev->rstc = reset_control_get(dev, NULL);
+ if (IS_ERR(rc_dev->rstc))
+ rc_dev->rstc = NULL;
+
rc_dev->dev = dev;
platform_set_drvdata(pdev, rc_dev);
st_rc_hardware_init(rc_dev);
@@ -338,6 +349,8 @@ static int st_rc_suspend(struct device *dev)
writel(0x00, rc_dev->rx_base + IRB_RX_EN);
writel(0x00, rc_dev->rx_base + IRB_RX_INT_EN);
clk_disable_unprepare(rc_dev->sys_clock);
+ if (rc_dev->rstc)
+ reset_control_assert(rc_dev->rstc);
}
return 0;