linux-kernel - [PATCH v2 5/7] media: camss: csiphy-3ph: Add support for SDM630/660

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Date:   Thu, 22 Oct 2020 19:47:04 +0200
From:   kholk11@...il.com
To:     todor.too@...il.com
Cc:     agross@...nel.org, bjorn.andersson@...aro.org, mchehab@...nel.org,
        robh+dt@...nel.org, marijns95@...il.com, konradybcio@...il.com,
        martin.botka1@...il.com, linux-arm-msm@...r.kernel.org,
        linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, robert.foss@...aro.org,
        AngeloGioacchino Del Regno <kholk11@...il.com>
Subject: [PATCH v2 5/7] media: camss: csiphy-3ph: Add support for SDM630/660

From: AngeloGioacchino Del Regno <kholk11@...il.com>

The CSIPHY on SDM630/660 needs a slightly longer T_HS_CLK_MISS
configuration on lanes CFG4.

Signed-off-by: AngeloGioacchino Del Regno <kholk11@...il.com>
Reviewed-by: Robert Foss <robert.foss@...aro.org>
---
 drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
index 2e65caf1ecae..97cb9de85031 100644
--- a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
+++ b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
@@ -8,6 +8,7 @@
  * Copyright (C) 2016-2018 Linaro Ltd.
  */
 
+#include "camss.h"
 #include "camss-csiphy.h"
 
 #include <linux/delay.h>
@@ -21,6 +22,7 @@
 #define CSIPHY_3PH_LNn_CFG3(n)			(0x008 + 0x100 * (n))
 #define CSIPHY_3PH_LNn_CFG4(n)			(0x00c + 0x100 * (n))
 #define CSIPHY_3PH_LNn_CFG4_T_HS_CLK_MISS	0xa4
+#define CSIPHY_3PH_LNn_CFG4_T_HS_CLK_MISS_660	0xa5
 #define CSIPHY_3PH_LNn_CFG5(n)			(0x010 + 0x100 * (n))
 #define CSIPHY_3PH_LNn_CFG5_T_HS_DTERM		0x02
 #define CSIPHY_3PH_LNn_CFG5_HS_REC_EQ_FQ_INT	0x50
@@ -198,7 +200,10 @@ static void csiphy_lanes_enable(struct csiphy_device *csiphy,
 	val = CSIPHY_3PH_LNn_CFG1_SWI_REC_DLY_PRG;
 	writel_relaxed(val, csiphy->base + CSIPHY_3PH_LNn_CFG1(l));
 
-	val = CSIPHY_3PH_LNn_CFG4_T_HS_CLK_MISS;
+	if (csiphy->camss->version == CAMSS_660)
+		val = CSIPHY_3PH_LNn_CFG4_T_HS_CLK_MISS_660;
+	else
+		val = CSIPHY_3PH_LNn_CFG4_T_HS_CLK_MISS;
 	writel_relaxed(val, csiphy->base + CSIPHY_3PH_LNn_CFG4(l));
 
 	val = CSIPHY_3PH_LNn_MISC1_IS_CLKLANE;
-- 
2.28.0