[PATCH] drm/rockchip: avoid 64-bit division

[Arnd Bergmann]

From: Arnd Bergmann <a...@arndb.de>

Dividing a 64-bit integer prevents building this for 32-bit targets:

ERROR: modpost: "__aeabi_uldivmod" [drivers/gpu/drm/rockchip/rockchipdrm.ko] 
undefined!

As this function is not performance criticial, just Use the div_u64() helper.

Fixes: 128a9bf8ace2 ("drm/rockchip: Add basic RK3588 HDMI output support")
Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
 drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c 
b/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
index 9c796ee4c303..c8b362cc2b95 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c
@@ -82,7 +82,7 @@ static void dw_hdmi_qp_rockchip_encoder_enable(struct 
drm_encoder *encoder)
                 * comment in rk_hdptx_phy_power_on() from
                 * drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c
                 */
-               phy_set_bus_width(hdmi->phy, rate / 100);
+               phy_set_bus_width(hdmi->phy, div_u64(rate, 100));
        }
 }
 
-- 
2.39.5