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authorCristian Ciocaltea <cristian.ciocaltea@collabora.com>2024-06-29 03:26:58 +0300
committerVinod Koul <vkoul@kernel.org>2024-07-02 16:11:00 +0300
commitedf9e04955d2387032beac54ebf20b43aaca2adf (patch)
tree52cfb604df56fd7c20d1ff0e847c8415468b0d35 /LICENSES/dual
parentd7d2818b93837def4a33f92da2e64c3a2752c47e (diff)
downloadlinux-edf9e04955d2387032beac54ebf20b43aaca2adf.tar.xz
phy: phy-rockchip-samsung-hdptx: Select CONFIG_MFD_SYSCON
Compile testing configurations without REGMAP support enabled results in a bunch of errors being reported: ../drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c:569:21: error: variable ‘rk_hdptx_phy_regmap_config’ has initializer but incomplete type 569 | static const struct regmap_config rk_hdptx_phy_regmap_config = { | ^~~~~~~~~~~~~ ../drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c:570:10: error: ‘const struct regmap_config’ has no member named ‘reg_bits’ 570 | .reg_bits = 32, | ^~~~~~~~ Note that selecting REGMAP alone is not enough, because of the following liker error: phy-rockchip-samsung-hdptx.c:(.text+0x10c): undefined reference to `__devm_regmap_init_mmio_clk' Instead of the obvious fix to enable REGMAP_MMIO, select MFD_SYSCON, which implicitly enables REGMAP_MMIO as well. The rationale is that the driver has been already relying on the syscon functionality. Moreover, without MFD_SYSCON enabled, the test coverage is reduced, since the linker might not detect any potential undefined references following syscon_regmap_lookup_by_phandle() invocation in rk_hdptx_phy_probe() body. That is because the function would unconditionally return -ENOTSUP, hence the compiler is free to optimize out any unreachable code. Finally ensure PHY_ROCKCHIP_SAMSUNG_HDPTX depends on HAS_IOMEM, as required by MFD_SYSCON. Fixes: 553be2830c5f ("phy: rockchip: Add Samsung HDMI/eDP Combo PHY driver") Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> Link: https://lore.kernel.org/r/20240629-rk-hdptx-compile-test-fix-v1-1-c86675ba8070@collabora.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'LICENSES/dual')
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