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 <[email protected]>
Cc: Archit Taneja <[email protected]>
Cc: Wolfram Sang <[email protected]>
Cc: Lars-Peter Clausen <[email protected]>
Cc: Laurent Pinchart <[email protected]>
Cc: [email protected]
Signed-off-by: John Stultz <[email protected]>
---
v4: Move the regcache_sync() call outside the shared
    implementation as we don't want to call it on EDID probing,
    as suggested by Laurent
---
 drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c 
b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
index 405e460..12f2876 100644
--- 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(struct adv7511 *adv7511,
        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 adv7511 *adv7511)
        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 adv7511 *adv7511)
 
        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;
 }
 
-- 
2.7.4

_______________________________________________
dri-devel mailing list
[email protected]
https://lists.freedesktop.org/mailman/listinfo/dri-devel

Reply via email to