From 818956c76517e127fad8cf02cd29866e0a852072 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 18 Oct 2024 15:10:10 +0000 Subject: [PATCH] drm/rockchip: avoid 64-bit division 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 Reviewed-by: Dmitry Baryshkov Reviewed-by: Nathan Chancellor Link: https://lore.kernel.org/r/20241018151016.3496613-1-arnd@kernel.org Signed-off-by: Liviu Dudau (cherry picked from commit 4b64b4a81fcd51f570c046cf904aef19ec756d45) Signed-off-by: Maxime Ripard --- 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 9c796ee4c303a9..c8b362cc2b95fd 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)); } }