phy: phy-rockchip-samsung-hdptx: Fix PHY PLL output 50.25MHz error
authorAlgea Cao <algea.cao@rock-chips.com>
Sun, 27 Apr 2025 09:51:24 +0000 (17:51 +0800)
committerVinod Koul <vkoul@kernel.org>
Wed, 14 May 2025 08:55:09 +0000 (09:55 +0100)
commitf9475055b11c0c70979bd1667a76b2ebae638eb7
tree5cc3339f41cbc4c7cd859b09166ba65e5c67151e
parent3f097adb9b6c804636bcf8d01e0e7bc037bee0d3
phy: phy-rockchip-samsung-hdptx: Fix PHY PLL output 50.25MHz error

When using HDMI PLL frequency division coefficient at 50.25MHz
that is calculated by rk_hdptx_phy_clk_pll_calc(), it fails to
get PHY LANE lock. Although the calculated values are within the
allowable range of PHY PLL configuration.

In order to fix the PHY LANE lock error and provide the expected
50.25MHz output, manually compute the required PHY PLL frequency
division coefficient and add it to ropll_tmds_cfg configuration
table.

Signed-off-by: Algea Cao <algea.cao@rock-chips.com>
Reviewed-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250427095124.3354439-1-algea.cao@rock-chips.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c