From: Vinay Simha BN <simhavcs@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Vinay Simha BN <simhavcs@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 3/4] drm/dsi: Implement set tear scanline
Date: Wed, 20 Apr 2016 15:02:32 +0530 [thread overview]
Message-ID: <1461144755-10633-3-git-send-email-simhavcs@gmail.com> (raw)
In-Reply-To: <1461144755-10633-1-git-send-email-simhavcs@gmail.com>
Provide a small convenience wrapper that transmits
a set_tear_scanline command.
Signed-off-by: Vinay Simha BN <simhavcs@gmail.com>
---
drivers/gpu/drm/drm_mipi_dsi.c | 22 ++++++++++++++++++++++
include/drm/drm_mipi_dsi.h | 2 ++
2 files changed, 24 insertions(+)
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index f5d8083..26aba75 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -983,6 +983,28 @@ 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_dcs_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..37bd75d 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
next prev parent reply other threads:[~2016-04-20 9:33 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-13 6:28 [PATCH] drm/panel: Add JDI LT070ME05000 WUXGA DSI Panel Vinay Simha BN
2016-04-13 13:49 ` Thierry Reding
2016-04-14 12:38 ` Vinay Simha
2016-04-20 9:42 ` Vinay Simha
2016-04-14 10:47 ` [RESEND][PATCH] " Vinay Simha BN
2016-04-14 17:15 ` Rob Herring
2016-04-20 9:32 ` [PATCH v2 1/4] dt-bindings: Add jdi panel vendor Vinay Simha BN
2016-04-20 9:32 ` [PATCH v2 2/4] dt-bindings: Add jdi lt070me05000 panel bindings Vinay Simha BN
2016-04-21 15:45 ` Rob Herring
2016-04-22 6:55 ` Vinay Simha
2016-04-22 11:59 ` Thierry Reding
2016-04-20 9:32 ` Vinay Simha BN [this message]
2016-04-20 9:53 ` [PATCH v2 3/4] drm/dsi: Implement set tear scanline kbuild test robot
2016-04-20 10:24 ` [PATCH v3] drm/dsi: Implement set tear scanline compile fix Vinay Simha BN
2016-04-20 9:32 ` [PATCH v2 4/4] drm/panel: Add JDI LT070ME05000 WUXGA DSI Panel Vinay Simha BN
2016-04-21 15:33 ` [PATCH v2 1/4] dt-bindings: Add jdi panel vendor Rob Herring
2016-04-14 14:40 ` [PATCH] drm/panel: Add JDI LT070ME05000 WUXGA DSI Panel Archit Taneja
2016-04-20 9:46 ` Vinay Simha
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