linux-kernel - Re: [PATCH] phy: phy-rockchip-samsung-hdptx: Select CONFIG

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Message-ID: <114516975.nniJfEyVGO@phil>
Date: Thu, 11 Apr 2024 21:03:44 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I <kishon@...nel.org>,
 Algea Cao <algea.cao@...k-chips.com>,
 Cristian Ciocaltea <cristian.ciocaltea@...labora.com>
Cc: linux-phy@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org,
 linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
 kernel@...labora.com, kernel test robot <lkp@...el.com>
Subject: Re: [PATCH] phy: phy-rockchip-samsung-hdptx: Select CONFIG_RATIONAL

Am Dienstag, 9. April 2024, 00:29:25 CEST schrieb Cristian Ciocaltea:
> 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@...el.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202404090540.2l1TEkDF-lkp@intel.com/
> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...labora.com>

Reviewed-by: Heiko Stuebner <heiko@...ech.de>

> ---
>  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.
>