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drm/i915: Send DPI command explicitely in LP mode

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Though HS mode also should work.

v2: Change parameter as "bool hs" as suggested by Jani

Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Shobhit Kumar 2014-04-09 13:59:35 +05:30 committed by Daniel Vetter
parent 339023ec34
commit e1047028e2
3 changed files with 9 additions and 5 deletions
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5
drivers/gpu/drm/i915/intel_dsi.c
View File

@ -147,7 +147,7 @@ static void intel_dsi_enable(struct intel_encoder *encoder)
I915_WRITE(MIPI_MAX_RETURN_PKT_SIZE(pipe), 8 * 4);
else {
msleep(20); /* XXX */
dpi_send_cmd(intel_dsi, TURN_ON);
dpi_send_cmd(intel_dsi, TURN_ON, DPI_LP_MODE_EN);
msleep(100);
if (intel_dsi->dev.dev_ops->enable)
@ -218,7 +218,8 @@ static void intel_dsi_disable(struct intel_encoder *encoder)
DRM_DEBUG_KMS("\n");
if (is_vid_mode(intel_dsi)) {
dpi_send_cmd(intel_dsi, SHUTDOWN);
/* Send Shutdown command to the panel in LP mode */
dpi_send_cmd(intel_dsi, SHUTDOWN, DPI_LP_MODE_EN);
msleep(10);
/* de-assert ip_tg_enable signal */

4
drivers/gpu/drm/i915/intel_dsi_cmd.c
View File

@ -389,7 +389,7 @@ int dsi_vc_generic_read(struct intel_dsi *intel_dsi, int channel,
*
* XXX: commands with data in MIPI_DPI_DATA?
*/
int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd)
int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd, bool hs)
{
struct drm_encoder *encoder = &intel_dsi->base.base;
struct drm_device *dev = encoder->dev;
@ -399,7 +399,7 @@ int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd)
u32 mask;
/* XXX: pipe, hs */
if (intel_dsi->hs)
if (hs)
cmd &= ~DPI_LP_MODE;
else
cmd |= DPI_LP_MODE;

5
drivers/gpu/drm/i915/intel_dsi_cmd.h
View File

@ -33,6 +33,9 @@
#include "intel_drv.h"
#include "intel_dsi.h"
#define DPI_LP_MODE_EN false
#define DPI_HS_MODE_EN true
void dsi_hs_mode_enable(struct intel_dsi *intel_dsi, bool enable);
int dsi_vc_dcs_write(struct intel_dsi *intel_dsi, int channel,
@ -47,7 +50,7 @@ int dsi_vc_dcs_read(struct intel_dsi *intel_dsi, int channel, u8 dcs_cmd,
int dsi_vc_generic_read(struct intel_dsi *intel_dsi, int channel,
u8 *reqdata, int reqlen, u8 *buf, int buflen);
int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd);
int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd, bool hs);
/* XXX: questionable write helpers */
static inline int dsi_vc_dcs_write_0(struct intel_dsi *intel_dsi,