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From: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
To: Vinod Koul <vkoul@kernel.org>,
	Kishon Vijay Abraham I <kishon@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Algea Cao <algea.cao@rock-chips.com>
Cc: linux-phy@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	kernel@collabora.com,
	kernel test robot <lkp@intel.com>
Subject: [PATCH] phy: phy-rockchip-samsung-hdptx: Select CONFIG_RATIONAL
Date: Tue,  9 Apr 2024 01:29:25 +0300
Message-ID: <20240408222926.32708-1-cristian.ciocaltea@collabora.com>
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Ensure CONFIG_RATIONAL is selected in order to fix the following link
error with some kernel configurations:

drivers/phy/rockchip/phy-rockchip-samsung-hdptx.o: in function `rk_hdptx_ropll_tmds_cmn_config':
phy-rockchip-samsung-hdptx.c:(.text+0x950): undefined reference to `rational_best_approximation'

Fixes: 553be2830c5f ("phy: rockchip: Add Samsung HDMI/eDP Combo PHY driver")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404090540.2l1TEkDF-lkp@intel.com/
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
---
 drivers/phy/rockchip/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/phy/rockchip/Kconfig b/drivers/phy/rockchip/Kconfig
index a34f67bb7e61..b60a4b60451e 100644
--- a/drivers/phy/rockchip/Kconfig
+++ b/drivers/phy/rockchip/Kconfig
@@ -87,6 +87,7 @@ config PHY_ROCKCHIP_SAMSUNG_HDPTX
 	tristate "Rockchip Samsung HDMI/eDP Combo PHY driver"
 	depends on (ARCH_ROCKCHIP || COMPILE_TEST) && OF
 	select GENERIC_PHY
+	select RATIONAL
 	help
 	  Enable this to support the Rockchip HDMI/eDP Combo PHY
 	  with Samsung IP block.
-- 
2.44.0