linux-kernel - [PATCH 4.20 19/92] drm/bridge: tc358767: add defines for DP1_SRCCTRL & PHY

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Message-Id: <20190218133456.487556428@linuxfoundation.org>
Date:   Mon, 18 Feb 2019 14:42:22 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Tomi Valkeinen <tomi.valkeinen@...com>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.20 19/92] drm/bridge: tc358767: add defines for DP1_SRCCTRL & PHY_2LANE

4.20-stable review patch.  If anyone has any objections, please let me know.

------------------

[ Upstream commit adf4109896bbee27fd2ac3b48d22d6a0062fe517 ]

DP1_SRCCTRL register and PHY_2LANE field did not have matching defines.
Add these.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@...com>
Reviewed-by: Andrzej Hajda <a.hajda@...sung.com>
Signed-off-by: Andrzej Hajda <a.hajda@...sung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190103115954.12785-3-tomi.valkeinen@ti.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/bridge/tc358767.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index 29a7e33e8ae0..5f0a666db2fd 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -142,6 +142,8 @@
 #define DP0_LTLOOPCTRL		0x06d8
 #define DP0_SNKLTCTRL		0x06e4
 
+#define DP1_SRCCTRL		0x07a0
+
 /* PHY */
 #define DP_PHY_CTRL		0x0800
 #define DP_PHY_RST			BIT(28)  /* DP PHY Global Soft Reset */
@@ -150,6 +152,7 @@
 #define PHY_M1_RST			BIT(12)  /* Reset PHY1 Main Channel */
 #define PHY_RDY				BIT(16)  /* PHY Main Channels Ready */
 #define PHY_M0_RST			BIT(8)   /* Reset PHY0 Main Channel */
+#define PHY_2LANE			BIT(2)   /* PHY Enable 2 lanes */
 #define PHY_A0_EN			BIT(1)   /* PHY Aux Channel0 Enable */
 #define PHY_M0_EN			BIT(0)   /* PHY Main Channel0 Enable */
 
@@ -564,7 +567,7 @@ static int tc_aux_link_setup(struct tc_data *tc)
 	value |= SYSCLK_SEL_LSCLK | LSCLK_DIV_2;
 	tc_write(SYS_PLLPARAM, value);
 
-	tc_write(DP_PHY_CTRL, BGREN | PWR_SW_EN | BIT(2) | PHY_A0_EN);
+	tc_write(DP_PHY_CTRL, BGREN | PWR_SW_EN | PHY_2LANE | PHY_A0_EN);
 
 	/*
 	 * Initially PLLs are in bypass. Force PLL parameter update,
@@ -834,7 +837,7 @@ static int tc_main_link_setup(struct tc_data *tc)
 		 DP0_SRCCTRL_LANESKEW | DP0_SRCCTRL_LANES_2 |
 		 DP0_SRCCTRL_BW27 | DP0_SRCCTRL_AUTOCORRECT);
 	/* from excel file - DP1_SrcCtrl */
-	tc_write(0x07a0, 0x00003083);
+	tc_write(DP1_SRCCTRL, 0x00003083);
 
 	rate = clk_get_rate(tc->refclk);
 	switch (rate) {
@@ -855,8 +858,9 @@ static int tc_main_link_setup(struct tc_data *tc)
 	}
 	value |= SYSCLK_SEL_LSCLK | LSCLK_DIV_2;
 	tc_write(SYS_PLLPARAM, value);
+
 	/* Setup Main Link */
-	dp_phy_ctrl = BGREN | PWR_SW_EN | BIT(2) | PHY_A0_EN |  PHY_M0_EN;
+	dp_phy_ctrl = BGREN | PWR_SW_EN | PHY_2LANE | PHY_A0_EN |  PHY_M0_EN;
 	tc_write(DP_PHY_CTRL, dp_phy_ctrl);
 	msleep(100);
 
-- 
2.19.1