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phy: starfive: Correct the dphy configure process

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We actually want to calculate the alignment values first, then
use the alignment value to look up the data from reg_configs[].

Fixes: d3ab795533 ("phy: starfive: Add mipi dphy tx support")

Reviewed-by: Shengyang Chen <shengyang.chen@starfivetech.com>
Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
Link: https://lore.kernel.org/r/20240627020059.163535-1-changhuang.liang@starfivetech.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Changhuang Liang 2024-06-26 19:00:59 -07:00 committed by Vinod Koul
parent 04490b621a
commit 8d2a353951
1 changed files with 3 additions and 1 deletions
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4
drivers/phy/starfive/phy-jh7110-dphy-tx.c
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@ -235,12 +235,14 @@ static int stf_dphy_configure(struct phy *phy, union phy_configure_opts *opts)
const struct stf_dphy_config *p = reg_configs;
unsigned long alignment = STF_DPHY_BITRATE_ALIGN;
u32 bitrate = opts->mipi_dphy.hs_clk_rate;
u32 i = stf_dphy_get_config_index(bitrate);
u32 tmp;
u32 i;
if (bitrate % alignment)
bitrate += alignment - (bitrate % alignment);
i = stf_dphy_get_config_index(bitrate);
tmp = readl(dphy->topsys + STF_DPHY_APBIFSAIF_SYSCFG(100));
tmp &= ~STF_DPHY_REFCLK_IN_SEL;
tmp |= FIELD_PREP(STF_DPHY_REFCLK_IN_SEL, STF_DPHY_REFCLK_12M);