[Intel-gfx] [RFC PATCH 05/12] drm/i915/dsi: remove unnecessary dsi device callbacks
Jani Nikula
jani.nikula at intel.com
Thu Jan 22 05:23:45 PST 2015
On Thu, 22 Jan 2015, Shobhit Kumar <shobhit.kumar at linux.intel.com> wrote:
> On 01/16/2015 05:57 PM, Jani Nikula wrote:
>> Remove all the trivial and/or dummy callbacks from intel dsi device
>> ops. Merge send_otp_cmds into panel_reset as they're called back to
>> back.
>>
>> This will be helpful for switching to use drm_panel for the
>> callbacks. If we ever need the additional callbacks, we should add them
>> to drm_panel funcs.
>>
>> Signed-off-by: Jani Nikula <jani.nikula at intel.com>
>> ---
>> drivers/gpu/drm/i915/intel_dsi.c | 32 ++-------------------
>> drivers/gpu/drm/i915/intel_dsi.h | 20 -------------
>> drivers/gpu/drm/i915/intel_dsi_panel_vbt.c | 45 ++----------------------------
>> 3 files changed, 5 insertions(+), 92 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
>> index 9b0eaa9db845..fc218b7754b3 100644
>> --- a/drivers/gpu/drm/i915/intel_dsi.c
>> +++ b/drivers/gpu/drm/i915/intel_dsi.c
>> @@ -70,12 +70,6 @@ static void band_gap_reset(struct drm_i915_private *dev_priv)
>> mutex_unlock(&dev_priv->dpio_lock);
>> }
>>
>> -static struct intel_dsi *intel_attached_dsi(struct drm_connector *connector)
>> -{
>> - return container_of(intel_attached_encoder(connector),
>> - struct intel_dsi, base);
>> -}
>> -
>> static inline bool is_vid_mode(struct intel_dsi *intel_dsi)
>> {
>> return intel_dsi->operation_mode == INTEL_DSI_VIDEO_MODE;
>> @@ -99,7 +93,6 @@ static bool intel_dsi_compute_config(struct intel_encoder *encoder,
>> struct intel_connector *intel_connector = intel_dsi->attached_connector;
>> struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode;
>> struct drm_display_mode *adjusted_mode = &config->adjusted_mode;
>> - struct drm_display_mode *mode = &config->requested_mode;
>>
>> DRM_DEBUG_KMS("\n");
>>
>> @@ -109,10 +102,6 @@ static bool intel_dsi_compute_config(struct intel_encoder *encoder,
>> /* DSI uses short packets for sync events, so clear mode flags for DSI */
>> adjusted_mode->flags = 0;
>>
>> - if (intel_dsi->dev.dev_ops->mode_fixup)
>> - return intel_dsi->dev.dev_ops->mode_fixup(&intel_dsi->dev,
>> - mode, adjusted_mode);
>> -
>
> There had been a instance where we had to drive different resolution
> (lower) than the native one. Also in VBT there is a field to make this
> generic at least from driver perspective to give the needed target
> resolution. In case target resolution is same as native, nothing gets
> changed, else mode_fixup function adjusts the mode accordingly keeping
> timing as same and enabling scalar. Might not be useful in general, but
> did find a use internally.
Can we just have the driver return the desired mode from .get_modes in
that case?
BR,
Jani.
>
> Either way
>
> Reviewed-By: Shobhit Kumar <shobhit.kumar at intel.com>
>
>> return true;
>> }
>>
>> @@ -269,9 +258,6 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder)
>> if (intel_dsi->dev.dev_ops->panel_reset)
>> intel_dsi->dev.dev_ops->panel_reset(&intel_dsi->dev);
>>
>> - if (intel_dsi->dev.dev_ops->send_otp_cmds)
>> - intel_dsi->dev.dev_ops->send_otp_cmds(&intel_dsi->dev);
>> -
>> for_each_dsi_port(port, intel_dsi->ports)
>> wait_for_dsi_fifo_empty(intel_dsi, port);
>>
>> @@ -484,7 +470,6 @@ intel_dsi_mode_valid(struct drm_connector *connector,
>> {
>> struct intel_connector *intel_connector = to_intel_connector(connector);
>> struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode;
>> - struct intel_dsi *intel_dsi = intel_attached_dsi(connector);
>>
>> DRM_DEBUG_KMS("\n");
>>
>> @@ -500,7 +485,7 @@ intel_dsi_mode_valid(struct drm_connector *connector,
>> return MODE_PANEL;
>> }
>>
>> - return intel_dsi->dev.dev_ops->mode_valid(&intel_dsi->dev, mode);
>> + return MODE_OK;
>> }
>>
>> /* return txclkesc cycles in terms of divider and duration in us */
>> @@ -749,20 +734,7 @@ static void intel_dsi_pre_pll_enable(struct intel_encoder *encoder)
>> static enum drm_connector_status
>> intel_dsi_detect(struct drm_connector *connector, bool force)
>> {
>> - struct intel_dsi *intel_dsi = intel_attached_dsi(connector);
>> - struct intel_encoder *intel_encoder = &intel_dsi->base;
>> - enum intel_display_power_domain power_domain;
>> - enum drm_connector_status connector_status;
>> - struct drm_i915_private *dev_priv = intel_encoder->base.dev->dev_private;
>> -
>> - DRM_DEBUG_KMS("\n");
>> - power_domain = intel_display_port_power_domain(intel_encoder);
>> -
>> - intel_display_power_get(dev_priv, power_domain);
>> - connector_status = intel_dsi->dev.dev_ops->detect(&intel_dsi->dev);
>> - intel_display_power_put(dev_priv, power_domain);
>> -
>> - return connector_status;
>> + return connector_status_connected;
>> }
>>
>> static int intel_dsi_get_modes(struct drm_connector *connector)
>> diff --git a/drivers/gpu/drm/i915/intel_dsi.h b/drivers/gpu/drm/i915/intel_dsi.h
>> index 2bb8c46c7889..22f87036a256 100644
>> --- a/drivers/gpu/drm/i915/intel_dsi.h
>> +++ b/drivers/gpu/drm/i915/intel_dsi.h
>> @@ -47,33 +47,13 @@ struct intel_dsi_dev_ops {
>>
>> void (*disable_panel_power)(struct intel_dsi_device *dsi);
>>
>> - /* one time programmable commands if needed */
>> - void (*send_otp_cmds)(struct intel_dsi_device *dsi);
>> -
>> /* This callback must be able to assume DSI commands can be sent */
>> void (*enable)(struct intel_dsi_device *dsi);
>>
>> /* This callback must be able to assume DSI commands can be sent */
>> void (*disable)(struct intel_dsi_device *dsi);
>>
>> - int (*mode_valid)(struct intel_dsi_device *dsi,
>> - struct drm_display_mode *mode);
>> -
>> - bool (*mode_fixup)(struct intel_dsi_device *dsi,
>> - const struct drm_display_mode *mode,
>> - struct drm_display_mode *adjusted_mode);
>> -
>> - void (*mode_set)(struct intel_dsi_device *dsi,
>> - struct drm_display_mode *mode,
>> - struct drm_display_mode *adjusted_mode);
>> -
>> - enum drm_connector_status (*detect)(struct intel_dsi_device *dsi);
>> -
>> - bool (*get_hw_state)(struct intel_dsi_device *dev);
>> -
>> struct drm_display_mode *(*get_modes)(struct intel_dsi_device *dsi);
>> -
>> - void (*destroy) (struct intel_dsi_device *dsi);
>> };
>>
>> struct intel_dsi {
>> diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
>> index 5493aef5a6a3..b0e7327a485f 100644
>> --- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
>> +++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
>> @@ -559,18 +559,6 @@ static bool generic_init(struct intel_dsi_device *dsi)
>> return true;
>> }
>>
>> -static int generic_mode_valid(struct intel_dsi_device *dsi,
>> - struct drm_display_mode *mode)
>> -{
>> - return MODE_OK;
>> -}
>> -
>> -static bool generic_mode_fixup(struct intel_dsi_device *dsi,
>> - const struct drm_display_mode *mode,
>> - struct drm_display_mode *adjusted_mode) {
>> - return true;
>> -}
>> -
>> static void generic_panel_reset(struct intel_dsi_device *dsi)
>> {
>> struct intel_dsi *intel_dsi = container_of(dsi, struct intel_dsi, dev);
>> @@ -580,26 +568,18 @@ static void generic_panel_reset(struct intel_dsi_device *dsi)
>> char *sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_ASSERT_RESET];
>>
>> generic_exec_sequence(intel_dsi, sequence);
>> -}
>> -
>> -static void generic_disable_panel_power(struct intel_dsi_device *dsi)
>> -{
>> - struct intel_dsi *intel_dsi = container_of(dsi, struct intel_dsi, dev);
>> - struct drm_device *dev = intel_dsi->base.base.dev;
>> - struct drm_i915_private *dev_priv = dev->dev_private;
>> -
>> - char *sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_DEASSERT_RESET];
>>
>> + sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_INIT_OTP];
>> generic_exec_sequence(intel_dsi, sequence);
>> }
>>
>> -static void generic_send_otp_cmds(struct intel_dsi_device *dsi)
>> +static void generic_disable_panel_power(struct intel_dsi_device *dsi)
>> {
>> struct intel_dsi *intel_dsi = container_of(dsi, struct intel_dsi, dev);
>> struct drm_device *dev = intel_dsi->base.base.dev;
>> struct drm_i915_private *dev_priv = dev->dev_private;
>>
>> - char *sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_INIT_OTP];
>> + char *sequence = dev_priv->vbt.dsi.sequence[MIPI_SEQ_DEASSERT_RESET];
>>
>> generic_exec_sequence(intel_dsi, sequence);
>> }
>> @@ -626,16 +606,6 @@ static void generic_disable(struct intel_dsi_device *dsi)
>> generic_exec_sequence(intel_dsi, sequence);
>> }
>>
>> -static enum drm_connector_status generic_detect(struct intel_dsi_device *dsi)
>> -{
>> - return connector_status_connected;
>> -}
>> -
>> -static bool generic_get_hw_state(struct intel_dsi_device *dev)
>> -{
>> - return true;
>> -}
>> -
>> static struct drm_display_mode *generic_get_modes(struct intel_dsi_device *dsi)
>> {
>> struct intel_dsi *intel_dsi = container_of(dsi, struct intel_dsi, dev);
>> @@ -646,20 +616,11 @@ static struct drm_display_mode *generic_get_modes(struct intel_dsi_device *dsi)
>> return dev_priv->vbt.lfp_lvds_vbt_mode;
>> }
>>
>> -static void generic_destroy(struct intel_dsi_device *dsi) { }
>> -
>> -/* Callbacks. We might not need them all. */
>> struct intel_dsi_dev_ops vbt_generic_dsi_display_ops = {
>> .init = generic_init,
>> - .mode_valid = generic_mode_valid,
>> - .mode_fixup = generic_mode_fixup,
>> .panel_reset = generic_panel_reset,
>> .disable_panel_power = generic_disable_panel_power,
>> - .send_otp_cmds = generic_send_otp_cmds,
>> .enable = generic_enable,
>> .disable = generic_disable,
>> - .detect = generic_detect,
>> - .get_hw_state = generic_get_hw_state,
>> .get_modes = generic_get_modes,
>> - .destroy = generic_destroy,
>> };
>>
>
> Regards
> Shobhit
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Jani Nikula, Intel Open Source Technology Center
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