6.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx>
[ Upstream commit edf9e04955d2387032beac54ebf20b43aaca2adf ]
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@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240629-rk-hdptx-compile-test-fix-v1-1-c86675ba8070@xxxxxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/phy/rockchip/Kconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/phy/rockchip/Kconfig b/drivers/phy/rockchip/Kconfig
index 08b0f43457606..490263375057b 100644
--- a/drivers/phy/rockchip/Kconfig
+++ b/drivers/phy/rockchip/Kconfig
@@ -86,7 +86,9 @@ config PHY_ROCKCHIP_PCIE
config PHY_ROCKCHIP_SAMSUNG_HDPTX
tristate "Rockchip Samsung HDMI/eDP Combo PHY driver"
depends on (ARCH_ROCKCHIP || COMPILE_TEST) && OF
+ depends on HAS_IOMEM
select GENERIC_PHY
+ select MFD_SYSCON
select RATIONAL
help
Enable this to support the Rockchip HDMI/eDP Combo PHY
--
2.43.0
