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phy: samsung: ufs: support secondary ufs phy

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To support secondary ufs phy device, we need to get an offset for phy
isolation from the syscon DT node. If the first index argument of the
node is existing, we can read the offset value and set it as isol->offset.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20220607072907.127000-6-chanho61.park@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Chanho Park 2022-06-07 16:29:07 +09:00 committed by Vinod Koul
parent f86c1d0a58
commit 2aecaf6ccd
1 changed files with 5 additions and 0 deletions
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5
drivers/phy/samsung/phy-samsung-ufs.c
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@ -288,6 +288,7 @@ static int samsung_ufs_phy_probe(struct platform_device *pdev)
struct phy *gen_phy;
struct phy_provider *phy_provider;
const struct samsung_ufs_phy_drvdata *drvdata;
u32 isol_offset;
int err = 0;
match = of_match_node(samsung_ufs_phy_match, dev->of_node);
@ -330,6 +331,10 @@ static int samsung_ufs_phy_probe(struct platform_device *pdev)
phy->has_symbol_clk = drvdata->has_symbol_clk;
memcpy(&phy->isol, &drvdata->isol, sizeof(phy->isol));
if (!of_property_read_u32_index(dev->of_node, "samsung,pmu-syscon", 1,
&isol_offset))
phy->isol.offset = isol_offset;
phy->lane_cnt = PHY_DEF_LANE_CNT;
phy_set_drvdata(gen_phy, phy);