On Mon, 20 Feb 2017 15:08:36 +0100
Hans de Goede <hdegoede@xxxxxxxxxx> wrote:
> 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@xxxxxxxxxx>
Reviewed-by: Bob Paauwe <bob.j.paauwe@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/intel_dsi.c | 14 +++++++---
> drivers/gpu/drm/i915/intel_dsi.h | 3 +++
> drivers/gpu/drm/i915/intel_dsi_panel_vbt.c | 43 ++----------------------------
> 3 files changed, 15 insertions(+), 45 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
> index 8808f87..78d5884 100644
> --- a/drivers/gpu/drm/i915/intel_dsi.c
> +++ b/drivers/gpu/drm/i915/intel_dsi.c
> @@ -669,7 +669,10 @@ 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 */
> @@ -682,7 +685,8 @@ 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);
> }
> @@ -757,7 +761,8 @@ 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);
>
> @@ -782,7 +787,8 @@ 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);
>
> diff --git a/drivers/gpu/drm/i915/intel_dsi.h b/drivers/gpu/drm/i915/intel_dsi.h
> index d567823..5486491 100644
> --- a/drivers/gpu/drm/i915/intel_dsi.h
> +++ b/drivers/gpu/drm/i915/intel_dsi.h
> @@ -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);
> diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
> index 995f72d..0ce1086 100644
> --- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
> +++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
> @@ -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,
> };
>
--
--
Bob Paauwe
Bob.J.Paauwe@xxxxxxxxx
IOTG / PED Software Organization
Intel Corp. Folsom, CA
(916) 356-6193
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