variable 'data' might be used uninitialized in this function.
Thus, adding NULL initialized to 'data' variable.
SQUASHME! - This patch should be squashed into following existing patch
Author: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
Author: Deepak M <m.deepak@xxxxxxxxx>
Date: Wed Apr 19 15:49:02 2017 +0800
drm/i915/dsi: Add DCS control for Panel PWM
If the source of the backlight PWM is from the
panel then the PWM can be controlled by DCS
command, this patch adds the support to
enable/disbale panel PWM, control backlight level
etc...
v2: Moving the CABC bkl functions to new file.(Jani)
v3: Rebase
v4: Rebase
v5: Use mipi_dsi_dcs_write() instead of mipi_dsi_dcs_write_buffer() (Jani)
Move DCS macro`s to include/video/mipi_display.h (Jani)
v6: Rename the file to intel_dsi_panel_pwm.c
Removing the CABC operations
v7 by Jani: renames, rebases, etc.
v8 by Jani: s/INTEL_BACKLIGHT_CABC/INTEL_BACKLIGHT_DSI_DCS/
v9 by Jani: rename init function to intel_dsi_dcs_init_backlight_funcs
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Cc: Yetunde Adebisi <yetundex.adebisi@xxxxxxxxx>
Signed-off-by: Deepak M <m.deepak@xxxxxxxxx>
Reviewed-by: Yetunde Adebisi <yetundex.adebisi@xxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Link: http://patchwork.freedesktop.org/patch/msgid/71238a4b14b8c3a6c04070c789f09f1b4bc00a15.1461676337.git.jani.nikula@xxxxxxxxx
(cherry picked from commit 90198355b83c79e2158ec591085858b191f08502)
Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
Change-Id: Icab0769c56fbb59f24d35fcb0a14c21a858bf8ac
Change-Id: Ib16bdda6c1950efddf66e31ab3172a2a17b09bc9
Signed-off-by: Balasubramaniam, Hari Chand <hari.chand.balasubramaniam@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c b/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c
index ac7c602..eec4585 100644
--- a/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c
+++ b/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c
@@ -46,7 +46,7 @@ static u32 dcs_get_backlight(struct intel_connector *connector)
struct intel_encoder *encoder = connector->encoder;
struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
struct mipi_dsi_device *dsi_device;
- u8 data;
+ u8 data = 0;
enum port port;
/* FIXME: Need to take care of 16 bit brightness level */
--
1.9.1
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