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From: Vinay Simha BN <simhavcs@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Vinay Simha BN <simhavcs@gmail.com>,
	Archit Taneja <archit.taneja@gmail.com>,
	Sumit Semwal <sumit.semwal@linaro.org>,
	John Stultz <john.stultz@linaro.org>,
	Thierry Reding <thierry.reding@gmail.com>,
	David Airlie <airlied@linux.ie>,
	dri-devel@lists.freedesktop.org (open list:DRM DRIVERS),
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v2] drm/dsi: Implement set tear scanline compile fix
Date: Thu, 21 Apr 2016 09:58:52 +0530	[thread overview]
Message-ID: <1461212932-4664-1-git-send-email-simhavcs@gmail.com> (raw)

Provide a small convenience wrapper that transmits
a set_tear_scanline command.

Cc: Archit Taneja <archit.taneja@gmail.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Vinay Simha BN <simhavcs@gmail.com>
---
 drivers/gpu/drm/drm_mipi_dsi.c | 23 +++++++++++++++++++++++
 include/drm/drm_mipi_dsi.h     |  2 ++
 2 files changed, 25 insertions(+)

diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index f5d8083..2f0b85c 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -983,6 +983,29 @@ int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi,
 EXPORT_SYMBOL(mipi_dsi_dcs_set_tear_on);
 
 /**
+ * mipi_dsi_set_tear_scanline() - turn on the display module's Tearing Effect
+ * output signal on the TE signal line when display module reaches line N
+ * defined by STS[n:0].
+ * @dsi: DSI peripheral device
+ * @param1: STS[10:8]
+ * @param2: STS[7:0]
+ * Return: 0 on success or a negative error code on failure
+ */
+int mipi_dsi_set_tear_scanline(struct mipi_dsi_device *dsi,
+			       u8 param1, u8 param2)
+{
+	u8 payload[3] = { MIPI_DCS_SET_TEAR_SCANLINE, param1, param2};
+	ssize_t err;
+
+	err = mipi_dsi_generic_write(dsi, &payload, sizeof(payload));
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+EXPORT_SYMBOL(mipi_dsi_set_tear_scanline);
+
+/**
  * mipi_dsi_dcs_set_pixel_format() - sets the pixel format for the RGB image
  *    data used by the interface
  * @dsi: DSI peripheral device
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 7a9840f..2788dbe 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -263,6 +263,8 @@ int mipi_dsi_dcs_set_column_address(struct mipi_dsi_device *dsi, u16 start,
 				    u16 end);
 int mipi_dsi_dcs_set_page_address(struct mipi_dsi_device *dsi, u16 start,
 				  u16 end);
+int mipi_dsi_set_tear_scanline(struct mipi_dsi_device *dsi, u8 param1,
+			       u8 param2);
 int mipi_dsi_dcs_set_tear_off(struct mipi_dsi_device *dsi);
 int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi,
 			     enum mipi_dsi_dcs_tear_mode mode);
-- 
2.1.2

WARNING: multiple messages have this Message-ID (diff)
From: Vinay Simha BN <simhavcs@gmail.com>
Cc: Vinay Simha BN <simhavcs@gmail.com>,
	Archit Taneja <archit.taneja@gmail.com>,
	Sumit Semwal <sumit.semwal@linaro.org>,
	John Stultz <john.stultz@linaro.org>,
	Thierry Reding <thierry.reding@gmail.com>,
	David Airlie <airlied@linux.ie>,
	"open list:DRM DRIVERS" <dri-devel@lists.freedesktop.org>,
	open list <linux-kernel@vger.kernel.org>
Subject: [PATCH v2] drm/dsi: Implement set tear scanline compile fix
Date: Thu, 21 Apr 2016 09:58:52 +0530	[thread overview]
Message-ID: <1461212932-4664-1-git-send-email-simhavcs@gmail.com> (raw)

Provide a small convenience wrapper that transmits
a set_tear_scanline command.

Cc: Archit Taneja <archit.taneja@gmail.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Vinay Simha BN <simhavcs@gmail.com>
---
 drivers/gpu/drm/drm_mipi_dsi.c | 23 +++++++++++++++++++++++
 include/drm/drm_mipi_dsi.h     |  2 ++
 2 files changed, 25 insertions(+)

diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index f5d8083..2f0b85c 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -983,6 +983,29 @@ int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi,
 EXPORT_SYMBOL(mipi_dsi_dcs_set_tear_on);
 
 /**
+ * mipi_dsi_set_tear_scanline() - turn on the display module's Tearing Effect
+ * output signal on the TE signal line when display module reaches line N
+ * defined by STS[n:0].
+ * @dsi: DSI peripheral device
+ * @param1: STS[10:8]
+ * @param2: STS[7:0]
+ * Return: 0 on success or a negative error code on failure
+ */
+int mipi_dsi_set_tear_scanline(struct mipi_dsi_device *dsi,
+			       u8 param1, u8 param2)
+{
+	u8 payload[3] = { MIPI_DCS_SET_TEAR_SCANLINE, param1, param2};
+	ssize_t err;
+
+	err = mipi_dsi_generic_write(dsi, &payload, sizeof(payload));
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+EXPORT_SYMBOL(mipi_dsi_set_tear_scanline);
+
+/**
  * mipi_dsi_dcs_set_pixel_format() - sets the pixel format for the RGB image
  *    data used by the interface
  * @dsi: DSI peripheral device
diff --git a/include/drm/drm_mipi_dsi.h b/include/drm/drm_mipi_dsi.h
index 7a9840f..2788dbe 100644
--- a/include/drm/drm_mipi_dsi.h
+++ b/include/drm/drm_mipi_dsi.h
@@ -263,6 +263,8 @@ int mipi_dsi_dcs_set_column_address(struct mipi_dsi_device *dsi, u16 start,
 				    u16 end);
 int mipi_dsi_dcs_set_page_address(struct mipi_dsi_device *dsi, u16 start,
 				  u16 end);
+int mipi_dsi_set_tear_scanline(struct mipi_dsi_device *dsi, u8 param1,
+			       u8 param2);
 int mipi_dsi_dcs_set_tear_off(struct mipi_dsi_device *dsi);
 int mipi_dsi_dcs_set_tear_on(struct mipi_dsi_device *dsi,
 			     enum mipi_dsi_dcs_tear_mode mode);
-- 
2.1.2

             reply	other threads:[~2016-04-21  4:29 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-21  4:28 Vinay Simha BN [this message]
2016-04-21  4:28 ` [PATCH v2] drm/dsi: Implement set tear scanline compile fix Vinay Simha BN

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