linux-kernel - [PATCH 3/3] phy: samsung: gs101-ufs: Add hibern8 enter and exit specific tuning values

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Message-ID: <20241002201555.3332138-4-peter.griffin@linaro.org>
Date: Wed,  2 Oct 2024 21:15:55 +0100
From: Peter Griffin <peter.griffin@...aro.org>
To: vkoul@...nel.org,
	kishon@...nel.org,
	krzysztof.kozlowski@...aro.org,
	alim.akhtar@...sung.com
Cc: tudor.ambarus@...aro.org,
	andre.draszik@...aro.org,
	kernel-team@...roid.com,
	willmcvicker@...gle.com,
	linux-phy@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	Peter Griffin <peter.griffin@...aro.org>
Subject: [PATCH 3/3] phy: samsung: gs101-ufs: Add hibern8 enter and exit specific tuning values

Add the gs101 specific phy calibration values that need to be programmed
when entering and exiting hibern8 state.

Signed-off-by: Peter Griffin <peter.griffin@...aro.org>
---
 drivers/phy/samsung/phy-gs101-ufs.c | 31 ++++++++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/drivers/phy/samsung/phy-gs101-ufs.c b/drivers/phy/samsung/phy-gs101-ufs.c
index 17b798da5b57..5363d8be6c76 100644
--- a/drivers/phy/samsung/phy-gs101-ufs.c
+++ b/drivers/phy/samsung/phy-gs101-ufs.c
@@ -108,10 +108,35 @@ static const struct samsung_ufs_phy_cfg tensor_gs101_post_pwr_hs_config[] = {
 	END_UFS_PHY_CFG,
 };
 
+static const struct samsung_ufs_phy_cfg tensor_gs101_post_h8_enter[] = {
+	PHY_TRSV_REG_CFG_GS101(0x262, 0x08, PWR_MODE_ANY),
+	PHY_TRSV_REG_CFG_GS101(0x265, 0x0A, PWR_MODE_ANY),
+	PHY_COMN_REG_CFG(0x1, 0x8,  PWR_MODE_ANY),
+	PHY_COMN_REG_CFG(0x0, 0x86,  PWR_MODE_ANY),
+	PHY_COMN_REG_CFG(0x8, 0x60,  PWR_MODE_HS_ANY),
+	PHY_TRSV_REG_CFG_GS101(0x222, 0x08, PWR_MODE_HS_ANY),
+	PHY_TRSV_REG_CFG_GS101(0x246, 0x01, PWR_MODE_HS_ANY),
+	END_UFS_PHY_CFG,
+};
+
+static const struct samsung_ufs_phy_cfg tensor_gs101_pre_h8_exit[] = {
+	PHY_COMN_REG_CFG(0x0, 0xC6,  PWR_MODE_ANY),
+	PHY_COMN_REG_CFG(0x1, 0x0C,  PWR_MODE_ANY),
+	PHY_TRSV_REG_CFG_GS101(0x262, 0x00, PWR_MODE_ANY),
+	PHY_TRSV_REG_CFG_GS101(0x265, 0x00, PWR_MODE_ANY),
+	PHY_COMN_REG_CFG(0x8, 0xE0,  PWR_MODE_HS_ANY),
+	PHY_TRSV_REG_CFG_GS101(0x246, 0x03, PWR_MODE_HS_ANY),
+	PHY_TRSV_REG_CFG_GS101(0x222, 0x18, PWR_MODE_HS_ANY),
+	END_UFS_PHY_CFG,
+};
+
+
 static const struct samsung_ufs_phy_cfg *tensor_gs101_ufs_phy_cfgs[CFG_TAG_MAX] = {
-	[CFG_PRE_INIT]		= tensor_gs101_pre_init_cfg,
-	[CFG_PRE_PWR_HS]	= tensor_gs101_pre_pwr_hs_config,
-	[CFG_POST_PWR_HS]	= tensor_gs101_post_pwr_hs_config,
+	[CFG_PRE_INIT]			= tensor_gs101_pre_init_cfg,
+	[CFG_PRE_PWR_HS]		= tensor_gs101_pre_pwr_hs_config,
+	[CFG_POST_PWR_HS]		= tensor_gs101_post_pwr_hs_config,
+	[CFG_POST_HIBERN8_ENTER]	= tensor_gs101_post_h8_enter,
+	[CFG_PRE_HIBERN8_EXIT]		= tensor_gs101_pre_h8_exit,
 };
 
 static const char * const tensor_gs101_ufs_phy_clks[] = {
-- 
2.46.1.824.gd892dcdcdd-goog