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From:   Jonathan Marek <jonathan@marek.ca>
To:     linux-arm-msm@vger.kernel.org
Cc:     robert.foss@linaro.org, andrey.konovalov@linaro.org,
        Todor Tomov <todor.too@gmail.com>,
        Andy Gross <agross@kernel.org>,
        Bjorn Andersson <bjorn.andersson@linaro.org>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Hans Verkuil <hverkuil-cisco@xs4all.nl>,
        linux-media@vger.kernel.org (open list:QUALCOMM CAMERA SUBSYSTEM DRIVER),
        linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 08/17] media: camss: csid-170: set the right HALT_CMD when disabled
Date:   Tue,  8 Jun 2021 18:34:57 -0400
Message-Id: <20210608223513.23193-9-jonathan@marek.ca>
In-Reply-To: <20210608223513.23193-1-jonathan@marek.ca>
References: <20210608223513.23193-1-jonathan@marek.ca>
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Use the "HALT_CMD_RESUME_AT_FRAME_BOUNDARY" define instead of a "1" which
is otherwise confusing, and add a "HALT_CMD_HALT_AT_FRAME_BOUNDARY" which
is set when disabling.

Fixes: eebe6d00e9bf ("media: camss: Add support for CSID hardware version Titan 170")
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
---
 drivers/media/platform/qcom/camss/camss-csid-170.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/qcom/camss/camss-csid-170.c b/drivers/media/platform/qcom/camss/camss-csid-170.c
index 2c84d40fe3e04..22a7d7ad63403 100644
--- a/drivers/media/platform/qcom/camss/camss-csid-170.c
+++ b/drivers/media/platform/qcom/camss/camss-csid-170.c
@@ -105,7 +105,8 @@
 #define CSID_RDI_CTRL(rdi)			((IS_LITE ? 0x208 : 0x308)\
 						+ 0x100 * (rdi))
 #define		RDI_CTRL_HALT_CMD		0
-#define			ALT_CMD_RESUME_AT_FRAME_BOUNDARY	1
+#define			HALT_CMD_HALT_AT_FRAME_BOUNDARY		0
+#define			HALT_CMD_RESUME_AT_FRAME_BOUNDARY	1
 #define		RDI_CTRL_HALT_MODE		2
 
 #define CSID_RDI_FRM_DROP_PATTERN(rdi)			((IS_LITE ? 0x20C : 0x30C)\
@@ -444,7 +445,10 @@ static void csid_configure_stream(struct csid_device *csid, u8 enable)
 	val |= 1 << CSI2_RX_CFG1_MISR_EN;
 	writel_relaxed(val, csid->base + CSID_CSI2_RX_CFG1);
 
-	val = 1 << RDI_CTRL_HALT_CMD;
+	if (enable)
+		val = HALT_CMD_RESUME_AT_FRAME_BOUNDARY << RDI_CTRL_HALT_CMD;
+	else
+		val = HALT_CMD_HALT_AT_FRAME_BOUNDARY << RDI_CTRL_HALT_CMD;
 	writel_relaxed(val, csid->base + CSID_RDI_CTRL(0));
 }
 
-- 
2.26.1