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From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Douglas Anderson <dianders@chromium.org>
Cc: Andrzej Hajda <a.hajda@samsung.com>,
	Neil Armstrong <narmstrong@baylibre.com>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Jonas Karlman <jonas@kwiboo.se>,
	Jernej Skrabec <jernej.skrabec@siol.net>,
	Sam Ravnborg <sam@ravnborg.org>, Wolfram Sang <wsa@kernel.org>,
	Stephen Boyd <swboyd@chromium.org>,
	robdclark@chromium.org,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>,
	Steev Klimaszewski <steev@kali.org>,
	linux-arm-msm@vger.kernel.org, Linus W <linus.walleij@linaro.org>,
	Daniel Vetter <daniel@ffwll.ch>, David Airlie <airlied@linux.ie>,
	Robert Foss <robert.foss@linaro.org>,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 17/27] drm/bridge: ti-sn65dsi86: Use pm_runtime autosuspend
Date: Fri, 23 Apr 2021 09:51:28 -0500
Message-ID: <YILe8KziQNalL994@builder.lan> (raw)
In-Reply-To: <20210416153909.v4.17.I4c0b4a87e4dc19e5023b4d0a21bbfa6d9c09ebd8@changeid>

On Fri 16 Apr 17:39 CDT 2021, Douglas Anderson wrote:

> Let's make the bridge use autosuspend with a 500ms delay. This is in
> preparation for promoting DP AUX transfers to their own sub-driver so
> that we're not constantly powering up and down the device as we
> transfer all the chunks.
> 

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Regards,
Bjorn

> Signed-off-by: Douglas Anderson <dianders@chromium.org>
> ---
> 
> (no changes since v1)
> 
>  drivers/gpu/drm/bridge/ti-sn65dsi86.c | 14 ++++++++------
>  1 file changed, 8 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> index 44edcf6f5744..a98abf496190 100644
> --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> @@ -243,7 +243,7 @@ static int status_show(struct seq_file *s, void *data)
>  		seq_printf(s, "[0x%02x] = 0x%08x\n", reg, val);
>  	}
>  
> -	pm_runtime_put(pdata->dev);
> +	pm_runtime_put_autosuspend(pdata->dev);
>  
>  	return 0;
>  }
> @@ -292,7 +292,7 @@ static int ti_sn_bridge_connector_get_modes(struct drm_connector *connector)
>  	if (!edid) {
>  		pm_runtime_get_sync(pdata->dev);
>  		edid = pdata->edid = drm_get_edid(connector, &pdata->aux.ddc);
> -		pm_runtime_put(pdata->dev);
> +		pm_runtime_put_autosuspend(pdata->dev);
>  	}
>  
>  	if (edid && drm_edid_is_valid(edid)) {
> @@ -418,7 +418,7 @@ static int ti_sn_bridge_attach(struct drm_bridge *bridge,
>  	/* check if continuous dsi clock is required or not */
>  	pm_runtime_get_sync(pdata->dev);
>  	regmap_read(pdata->regmap, SN_DPPLL_SRC_REG, &val);
> -	pm_runtime_put(pdata->dev);
> +	pm_runtime_put_autosuspend(pdata->dev);
>  	if (!(val & DPPLL_CLK_SRC_DSICLK))
>  		dsi->mode_flags |= MIPI_DSI_CLOCK_NON_CONTINUOUS;
>  
> @@ -1049,7 +1049,7 @@ static int ti_sn_bridge_gpio_get(struct gpio_chip *chip, unsigned int offset)
>  	 */
>  	pm_runtime_get_sync(pdata->dev);
>  	ret = regmap_read(pdata->regmap, SN_GPIO_IO_REG, &val);
> -	pm_runtime_put(pdata->dev);
> +	pm_runtime_put_autosuspend(pdata->dev);
>  
>  	if (ret)
>  		return ret;
> @@ -1100,7 +1100,7 @@ static int ti_sn_bridge_gpio_direction_input(struct gpio_chip *chip,
>  	 * it off and when it comes back it will have lost all state, but
>  	 * that's OK because the default is input and we're now an input.
>  	 */
> -	pm_runtime_put(pdata->dev);
> +	pm_runtime_put_autosuspend(pdata->dev);
>  
>  	return 0;
>  }
> @@ -1126,7 +1126,7 @@ static int ti_sn_bridge_gpio_direction_output(struct gpio_chip *chip,
>  				 SN_GPIO_MUX_OUTPUT << shift);
>  	if (ret) {
>  		clear_bit(offset, pdata->gchip_output);
> -		pm_runtime_put(pdata->dev);
> +		pm_runtime_put_autosuspend(pdata->dev);
>  	}
>  
>  	return ret;
> @@ -1408,6 +1408,8 @@ static int ti_sn65dsi86_probe(struct i2c_client *client,
>  	ret = devm_add_action_or_reset(dev, ti_sn65dsi86_runtime_disable, dev);
>  	if (ret)
>  		return ret;
> +	pm_runtime_set_autosuspend_delay(pdata->dev, 500);
> +	pm_runtime_use_autosuspend(pdata->dev);
>  
>  	ti_sn65dsi86_debugfs_init(pdata);
>  
> -- 
> 2.31.1.368.gbe11c130af-goog
> 

  reply index

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-16 22:39 [PATCH v4 00/27] drm: Fix EDID reading on ti-sn65dsi86; solve some chicken-and-egg problems Douglas Anderson
2021-04-16 22:39 ` [PATCH v4 01/27] drm/bridge: Fix the stop condition of drm_bridge_chain_pre_enable() Douglas Anderson
2021-04-16 22:39 ` [PATCH v4 02/27] drm/bridge: ti-sn65dsi86: Simplify refclk handling Douglas Anderson
2021-04-16 22:39 ` [PATCH v4 03/27] drm/bridge: ti-sn65dsi86: Remove incorrectly tagged kerneldoc comment Douglas Anderson
2021-04-16 22:39 ` [PATCH v4 04/27] drm/bridge: ti-sn65dsi86: Reorder remove() Douglas Anderson
2021-04-16 22:39 ` [PATCH v4 05/27] drm/bridge: ti-sn65dsi86: Move drm_panel_unprepare() to post_disable() Douglas Anderson
2021-04-16 22:39 ` [PATCH v4 06/27] drm/bridge: ti-sn65dsi86: Get rid of the useless detect() function Douglas Anderson
2021-04-16 22:39 ` [PATCH v4 07/27] drm/panel: panel-simple: Use runtime pm to avoid excessive unprepare / prepare Douglas Anderson
2021-04-16 22:39 ` [PATCH v4 08/27] drm/bridge: ti-sn65dsi86: Rename the main driver data structure Douglas Anderson
2021-04-23 14:28   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 09/27] drm/bridge: ti-sn65dsi86: More renames in prep for sub-devices Douglas Anderson
2021-04-23 14:30   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 10/27] drm/bridge: ti-sn65dsi86: Clean debugfs code Douglas Anderson
2021-04-23 14:35   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 11/27] drm/bridge: ti-sn65dsi86: Add local var for "dev" to simplify probe Douglas Anderson
2021-04-23 14:38   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 12/27] drm/bridge: ti-sn65dsi86: Cleanup managing of drvdata Douglas Anderson
2021-04-23 14:38   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 13/27] drm/bridge: ti-sn65dsi86: Use devm to do our runtime_disable Douglas Anderson
2021-04-23 14:39   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 14/27] drm/bridge: ti-sn65dsi86: Move all the chip-related init to the start Douglas Anderson
2021-04-23 14:41   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 15/27] drm/bridge: ti-sn65dsi86: Break GPIO and MIPI-to-eDP bridge into sub-drivers Douglas Anderson
2021-04-23 14:49   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 16/27] drm/panel: panel-simple: Get rid of hacky HPD chicken-and-egg code Douglas Anderson
2021-04-23 14:50   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 17/27] drm/bridge: ti-sn65dsi86: Use pm_runtime autosuspend Douglas Anderson
2021-04-23 14:51   ` Bjorn Andersson [this message]
2021-04-16 22:39 ` [PATCH v4 18/27] drm/bridge: ti-sn65dsi86: Code motion of refclk management functions Douglas Anderson
2021-04-23 14:51   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 19/27] drm/bridge: ti-sn65dsi86: If refclk, DP AUX can happen w/out pre-enable Douglas Anderson
2021-04-23 14:56   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 20/27] drm/bridge: ti-sn65dsi86: Promote the AUX channel to its own sub-dev Douglas Anderson
2021-04-23 14:59   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 21/27] i2c: i2c-core-of: Fix corner case of finding adapter by node Douglas Anderson
2021-04-23 15:12   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 22/27] drm/panel: panel-simple: Remove extra call: drm_connector_update_edid_property() Douglas Anderson
2021-04-23 15:15   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 23/27] drm/panel: panel-simple: Power the panel when reading the EDID Douglas Anderson
2021-04-23 15:16   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 24/27] drm/panel: panel-simple: Cache the EDID as long as we retain power Douglas Anderson
2021-04-23 16:12   ` Bjorn Andersson
2021-04-23 16:30     ` Doug Anderson
2021-04-16 22:39 ` [PATCH v4 25/27] drm/bridge: ti-sn65dsi86: Don't read EDID blob over DDC Douglas Anderson
2021-04-23 16:13   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 26/27] arm64: dts: qcom: Link the panel to the bridge's DDC bus Douglas Anderson
2021-04-23 16:16   ` Bjorn Andersson
2021-04-16 22:39 ` [PATCH v4 27/27] drm/panel: panel-simple: Prepare/unprepare are refcounted, not forced Douglas Anderson
2021-04-23 16:16   ` Bjorn Andersson
2021-04-23 16:46   ` Doug Anderson
2021-04-20 16:42 ` [PATCH v4 00/27] drm: Fix EDID reading on ti-sn65dsi86; solve some chicken-and-egg problems Doug Anderson

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