[PATCH] phy: rockchip-dphy-rx0: Include linux/delay.h

[Tomasz Figa]

Fix an implicit declaration of usleep_range():

drivers/phy/rockchip/phy-rockchip-dphy-rx0.c: In function 'rk_dphy_enable':
drivers/phy/rockchip/phy-rockchip-dphy-rx0.c:203:2: error: implicit declaration of function 'usleep_range' [-Werror=implicit-function-declaration]

Fixes: 32abcc4491c62 ("media: staging: phy-rockchip-dphy-rx0: add Rockchip MIPI Synopsys DPHY RX0 driver")
Signed-off-by: Tomasz Figa <tfiga@xxxxxxxxxxxx>
---
 drivers/phy/rockchip/phy-rockchip-dphy-rx0.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/phy/rockchip/phy-rockchip-dphy-rx0.c b/drivers/phy/rockchip/phy-rockchip-dphy-rx0.c
index 7c4df6d48c43..4df9476ef2a9 100644
--- a/drivers/phy/rockchip/phy-rockchip-dphy-rx0.c
+++ b/drivers/phy/rockchip/phy-rockchip-dphy-rx0.c
@@ -16,6 +16,7 @@
  */
 
 #include <linux/clk.h>
+#include <linux/delay.h>
 #include <linux/io.h>
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
-- 
2.28.0.681.g6f77f65b4e-goog