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Date: Wed, 24 May 2017 14:30:01 +0200
From: Neil Armstrong <narmstrong@...libre.com>
To: Jose Abreu <Jose.Abreu@...opsys.com>,
dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc: Daniel Vetter <daniel.vetter@...ll.ch>,
Alexey Brodkin <Alexey.Brodkin@...opsys.com>,
Carlos Palminha <CARLOS.PALMINHA@...opsys.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: Re: [PATCH v4 07/10] drm/bridge/synopsys: dw-hdmi: Use
bridge->mode_valid() callback
Hi Jose,
On 05/19/2017 02:52 AM, Jose Abreu wrote:
> Now that we have a callback to check if bridge supports a given mode
> we can use it in Synopsys Designware HDMI bridge so that we restrict
> the number of probbed modes to the ones we can actually display.
>
> Also, there is no need to use mode_fixup() callback as mode_valid()
> will handle the mode validation.
>
> NOTE: Only compile tested
> NOTE 2: I also had to change the pdata declaration of mode_valid
> custom callback so that the passed modes are const. I also changed
> in the platforms I found. Not even compiled it though.
>
> Signed-off-by: Jose Abreu <joabreu@...opsys.com>
> Cc: Carlos Palminha <palminha@...opsys.com>
> Cc: Alexey Brodkin <abrodkin@...opsys.com>
> Cc: Ville Syrjälä <ville.syrjala@...ux.intel.com>
> Cc: Daniel Vetter <daniel.vetter@...ll.ch>
> Cc: Dave Airlie <airlied@...ux.ie>
> Cc: Andrzej Hajda <a.hajda@...sung.com>
> Cc: Archit Taneja <architt@...eaurora.org>
> Cc: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> ---
> drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 40 +++++++++--------------------
> drivers/gpu/drm/imx/dw_hdmi-imx.c | 4 +--
> drivers/gpu/drm/meson/meson_dw_hdmi.c | 2 +-
> drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 2 +-
> include/drm/bridge/dw_hdmi.h | 2 +-
> 5 files changed, 17 insertions(+), 33 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> index 4e1f54a..864e946 100644
> --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
> @@ -1881,24 +1881,6 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
> return ret;
> }
>
> -static enum drm_mode_status
> -dw_hdmi_connector_mode_valid(struct drm_connector *connector,
> - struct drm_display_mode *mode)
> -{
> - struct dw_hdmi *hdmi = container_of(connector,
> - struct dw_hdmi, connector);
> - enum drm_mode_status mode_status = MODE_OK;
> -
> - /* We don't support double-clocked modes */
> - if (mode->flags & DRM_MODE_FLAG_DBLCLK)
> - return MODE_BAD;
> -
> - if (hdmi->plat_data->mode_valid)
> - mode_status = hdmi->plat_data->mode_valid(connector, mode);
> -
> - return mode_status;
> -}
> -
> static void dw_hdmi_connector_force(struct drm_connector *connector)
> {
> struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
> @@ -1924,7 +1906,6 @@ static void dw_hdmi_connector_force(struct drm_connector *connector)
>
> static const struct drm_connector_helper_funcs dw_hdmi_connector_helper_funcs = {
> .get_modes = dw_hdmi_connector_get_modes,
> - .mode_valid = dw_hdmi_connector_mode_valid,
> .best_encoder = drm_atomic_helper_best_encoder,
> };
>
> @@ -1947,18 +1928,21 @@ static int dw_hdmi_bridge_attach(struct drm_bridge *bridge)
> return 0;
> }
>
> -static bool dw_hdmi_bridge_mode_fixup(struct drm_bridge *bridge,
> - const struct drm_display_mode *orig_mode,
> - struct drm_display_mode *mode)
> +static enum drm_mode_status dw_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
> + const struct drm_display_mode *mode)
> {
> struct dw_hdmi *hdmi = bridge->driver_private;
> struct drm_connector *connector = &hdmi->connector;
> - enum drm_mode_status status;
> + enum drm_mode_status mode_status = MODE_OK;
>
> - status = dw_hdmi_connector_mode_valid(connector, mode);
> - if (status != MODE_OK)
> - return false;
> - return true;
> + /* We don't support double-clocked modes */
> + if (mode->flags & DRM_MODE_FLAG_DBLCLK)
> + return MODE_BAD;
> +
> + if (hdmi->plat_data->mode_valid)
> + mode_status = hdmi->plat_data->mode_valid(connector, mode);
> +
> + return mode_status;
> }
>
> static void dw_hdmi_bridge_mode_set(struct drm_bridge *bridge,
> @@ -2002,7 +1986,7 @@ static void dw_hdmi_bridge_enable(struct drm_bridge *bridge)
> .enable = dw_hdmi_bridge_enable,
> .disable = dw_hdmi_bridge_disable,
> .mode_set = dw_hdmi_bridge_mode_set,
> - .mode_fixup = dw_hdmi_bridge_mode_fixup,
> + .mode_valid = dw_hdmi_bridge_mode_valid,
> };
>
> static irqreturn_t dw_hdmi_i2c_irq(struct dw_hdmi *hdmi)
> diff --git a/drivers/gpu/drm/imx/dw_hdmi-imx.c b/drivers/gpu/drm/imx/dw_hdmi-imx.c
> index f039641..5f561c8 100644
> --- a/drivers/gpu/drm/imx/dw_hdmi-imx.c
> +++ b/drivers/gpu/drm/imx/dw_hdmi-imx.c
> @@ -148,7 +148,7 @@ static int dw_hdmi_imx_atomic_check(struct drm_encoder *encoder,
> };
>
> static enum drm_mode_status imx6q_hdmi_mode_valid(struct drm_connector *con,
> - struct drm_display_mode *mode)
> + const struct drm_display_mode *mode)
> {
> if (mode->clock < 13500)
> return MODE_CLOCK_LOW;
> @@ -160,7 +160,7 @@ static enum drm_mode_status imx6q_hdmi_mode_valid(struct drm_connector *con,
> }
>
> static enum drm_mode_status imx6dl_hdmi_mode_valid(struct drm_connector *con,
> - struct drm_display_mode *mode)
> + const struct drm_display_mode *mode)
> {
> if (mode->clock < 13500)
> return MODE_CLOCK_LOW;
> diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c
> index 7b86eb7..f043904 100644
> --- a/drivers/gpu/drm/meson/meson_dw_hdmi.c
> +++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c
> @@ -537,7 +537,7 @@ static irqreturn_t dw_hdmi_top_thread_irq(int irq, void *dev_id)
>
> /* TOFIX Enable support for non-vic modes */
> static enum drm_mode_status dw_hdmi_mode_valid(struct drm_connector *connector,
> - struct drm_display_mode *mode)
> + const struct drm_display_mode *mode)
> {
> unsigned int vclk_freq;
> unsigned int venc_freq;
For the meson/meson_dw_hdmi.c file :
Acked-by: Neil Armstrong <narmstrong@...libre.com>
I can have a try in meson if you have a tree I can pull the full patchset from.
Neil
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