This is a note to let you know that I've just added the patch titled

drm/bridge: adv7511: Rework adv7511_power_on/off() so they can be reused internally

to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: drm-bridge-adv7511-rework-adv7511_power_on-off-so-they-can-be-reused-internally.patch and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 651e4769ba2a9f20c4b8a823ae2727bf7fa9c9f0 Mon Sep 17 00:00:00 2001

From: John Stultz john.stultz@linaro.org Date: Mon, 16 Jan 2017 16:52:50 -0800 Subject: drm/bridge: adv7511: Rework adv7511_power_on/off() so they can be reused internally

From: John Stultz john.stultz@linaro.org

commit 651e4769ba2a9f20c4b8a823ae2727bf7fa9c9f0 upstream.

In chasing down issues with EDID probing, I found some duplicated but incomplete logic used to power the chip on and off.

This patch refactors the adv7511_power_on/off functions, so they can be used for internal needs.

Cc: David Airlie airlied@linux.ie Cc: Archit Taneja architt@codeaurora.org Cc: Wolfram Sang wsa+renesas@sang-engineering.com Cc: Lars-Peter Clausen lars@metafoo.de Cc: Laurent Pinchart laurent.pinchart@ideasonboard.com Cc: dri-devel@lists.freedesktop.org Signed-off-by: John Stultz john.stultz@linaro.org Signed-off-by: Archit Taneja architt@codeaurora.org Link: http://patchwork.freedesktop.org/patch/msgid/1484614372-15342-5-git-send-ema... Signed-off-by: Nhan Nguyen nhan.nguyen.yb@renesas.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-)

--- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c @@ -325,7 +325,7 @@ static void adv7511_set_link_config(stru adv7511->rgb = config->input_colorspace == HDMI_COLORSPACE_RGB; }

-static void adv7511_power_on(struct adv7511 *adv7511) +static void __adv7511_power_on(struct adv7511 *adv7511) { adv7511->current_edid_segment = -1;

@@ -354,6 +354,11 @@ static void adv7511_power_on(struct adv7 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2, ADV7511_REG_POWER2_HPD_SRC_MASK, ADV7511_REG_POWER2_HPD_SRC_NONE); +} + +static void adv7511_power_on(struct adv7511 *adv7511) +{ + __adv7511_power_on(adv7511);

/* * Most of the registers are reset during power down or when HPD is low. @@ -362,21 +367,23 @@ static void adv7511_power_on(struct adv7

if (adv7511->type == ADV7533) adv7533_dsi_power_on(adv7511); - adv7511->powered = true; }

-static void adv7511_power_off(struct adv7511 *adv7511) +static void __adv7511_power_off(struct adv7511 *adv7511) { /* TODO: setup additional power down modes */ regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER, ADV7511_POWER_POWER_DOWN, ADV7511_POWER_POWER_DOWN); regcache_mark_dirty(adv7511->regmap); +}

+static void adv7511_power_off(struct adv7511 *adv7511) +{ + __adv7511_power_off(adv7511); if (adv7511->type == ADV7533) adv7533_dsi_power_off(adv7511); - adv7511->powered = false; }

Patches currently in stable-queue which might be from john.stultz@linaro.org are

queue-4.9/drm-bridge-adv7511-re-write-the-i2c-address-before-edid-probing.patch queue-4.9/drm-bridge-adv7511-rework-adv7511_power_on-off-so-they-can-be-reused-internally.patch queue-4.9/drm-bridge-adv7511-reuse-__adv7511_power_on-off-when-probing-edid.patch