diff mbox series

[v3,5/5] phy: samsung: ufs: support secondary ufs phy

Message ID 20220603020410.2976-6-chanho61.park@samsung.com (mailing list archive)
State New, archived
Headers show
Series support secondary ufs for Exynos Auto v9 SoC | expand

Commit Message

Chanho Park June 3, 2022, 2:04 a.m. UTC
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.

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
---
 drivers/phy/samsung/phy-samsung-ufs.c | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Krzysztof Kozlowski June 5, 2022, 4:15 p.m. UTC | #1
On 03/06/2022 04:04, Chanho Park wrote:
> 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.
> 
> Signed-off-by: Chanho Park <chanho61.park@samsung.com>

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/drivers/phy/samsung/phy-samsung-ufs.c b/drivers/phy/samsung/phy-samsung-ufs.c
index 0530513f2263..22b9e04ec39b 100644
--- a/drivers/phy/samsung/phy-samsung-ufs.c
+++ b/drivers/phy/samsung/phy-samsung-ufs.c
@@ -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);