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drm/i915/dsi: Make intel_dsi_enable/disable directly exec VBT sequences 

The drm_panel_enable/disable and drm_panel_prepare/unprepare calls are
not fine grained enough to abstract all the different steps we need to
take (and VBT sequences we need to exec) properly. So simply remove the
panel _enable/disable and prepare/unprepare callbacks and instead
export intel_dsi_exec_vbt_sequence() from intel_dsi_panel_vbt.c
and call that from intel_dsi_enable/disable().

No functional changes.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Bob Paauwe <bob.j.paauwe@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/b4ca5185d4788d92df2ed60837a24b8962a8e8ba.1488273823.git.jani.nikula@intel.com
This commit is contained in:
Hans de Goede 2017-02-28 11:26:20 +02:00 committed by Jani Nikula
parent 14be7a5c29
commit 18a00095a5
3 changed files with 15 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/gpu/drm/i915/intel_dsi.c
View File

@ -601,7 +601,10 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder,
/* put device in ready state */
intel_dsi_device_ready(encoder);
drm_panel_prepare(intel_dsi->panel);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_ASSERT_RESET);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_POWER_ON);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_DEASSERT_RESET);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_INIT_OTP);
/* Enable port in pre-enable phase itself because as per hw team
* recommendation, port should be enabled befor plane & pipe */
@ -614,7 +617,8 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder,
dpi_send_cmd(intel_dsi, TURN_ON, false, port);
msleep(100);
drm_panel_enable(intel_dsi->panel);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_DISPLAY_ON);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_BACKLIGHT_ON);
intel_dsi_port_enable(encoder);
}
@ -689,7 +693,8 @@ static void intel_dsi_post_disable(struct intel_encoder *encoder,
* if disable packets are sent before sending shutdown packet then in
* some next enable sequence send turn on packet error is observed
*/
drm_panel_disable(intel_dsi->panel);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_BACKLIGHT_OFF);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_DISPLAY_OFF);
intel_dsi_clear_device_ready(encoder);
@ -714,7 +719,8 @@ static void intel_dsi_post_disable(struct intel_encoder *encoder,
I915_WRITE(DSPCLK_GATE_D, val);
}
drm_panel_unprepare(intel_dsi->panel);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_ASSERT_RESET);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_POWER_OFF);
msleep(intel_dsi->panel_off_delay);

3
drivers/gpu/drm/i915/intel_dsi.h
View File

@ -132,6 +132,9 @@ static inline struct intel_dsi *enc_to_intel_dsi(struct drm_encoder *encoder)
void wait_for_dsi_fifo_empty(struct intel_dsi *intel_dsi, enum port port);
void intel_dsi_exec_vbt_sequence(struct intel_dsi *intel_dsi,
enum mipi_seq seq_id);
bool intel_dsi_pll_is_enabled(struct drm_i915_private *dev_priv);
int intel_compute_dsi_pll(struct intel_encoder *encoder,
struct intel_crtc_state *config);

43
drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
View File

@ -426,10 +426,9 @@ static const char *sequence_name(enum mipi_seq seq_id)
return "(unknown)";
}
static void generic_exec_sequence(struct drm_panel *panel, enum mipi_seq seq_id)
void intel_dsi_exec_vbt_sequence(struct intel_dsi *intel_dsi,
enum mipi_seq seq_id)
{
struct vbt_panel *vbt_panel = to_vbt_panel(panel);
struct intel_dsi *intel_dsi = vbt_panel->intel_dsi;
struct drm_i915_private *dev_priv = to_i915(intel_dsi->base.base.dev);
const u8 *data;
fn_mipi_elem_exec mipi_elem_exec;
@ -493,40 +492,6 @@ static void generic_exec_sequence(struct drm_panel *panel, enum mipi_seq seq_id)
}
}
static int vbt_panel_prepare(struct drm_panel *panel)
{
generic_exec_sequence(panel, MIPI_SEQ_ASSERT_RESET);
generic_exec_sequence(panel, MIPI_SEQ_POWER_ON);
generic_exec_sequence(panel, MIPI_SEQ_DEASSERT_RESET);
generic_exec_sequence(panel, MIPI_SEQ_INIT_OTP);
return 0;
}
static int vbt_panel_unprepare(struct drm_panel *panel)
{
generic_exec_sequence(panel, MIPI_SEQ_ASSERT_RESET);
generic_exec_sequence(panel, MIPI_SEQ_POWER_OFF);
return 0;
}
static int vbt_panel_enable(struct drm_panel *panel)
{
generic_exec_sequence(panel, MIPI_SEQ_DISPLAY_ON);
generic_exec_sequence(panel, MIPI_SEQ_BACKLIGHT_ON);
return 0;
}
static int vbt_panel_disable(struct drm_panel *panel)
{
generic_exec_sequence(panel, MIPI_SEQ_BACKLIGHT_OFF);
generic_exec_sequence(panel, MIPI_SEQ_DISPLAY_OFF);
return 0;
}
static int vbt_panel_get_modes(struct drm_panel *panel)
{
struct vbt_panel *vbt_panel = to_vbt_panel(panel);
@ -550,10 +515,6 @@ static int vbt_panel_get_modes(struct drm_panel *panel)
}
static const struct drm_panel_funcs vbt_panel_funcs = {
.disable = vbt_panel_disable,
.unprepare = vbt_panel_unprepare,
.prepare = vbt_panel_prepare,
.enable = vbt_panel_enable,
.get_modes = vbt_panel_get_modes,
};