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drm/rockchip: rgb: fix phy power_count may unbalance in resume and suspend

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Change-Id: I760db0055f6efcc0a2e1a74942e23e2d432181bd
Signed-off-by: Guochun Huang <hero.huang@rock-chips.com>
This commit is contained in:
Guochun Huang
2023-03-27 07:30:11 +00:00
committed by Tao Huang
parent f982b75ab5
commit bd43adea36
1 changed files with 21 additions and 2 deletions
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23
drivers/gpu/drm/rockchip/rockchip_rgb.c
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@@ -138,6 +138,7 @@ struct rockchip_rgb {
struct regmap *grf;
bool data_sync_bypass;
bool is_mcu_panel;
bool phy_enabled;
const struct rockchip_rgb_funcs *funcs;
struct rockchip_drm_sub_dev sub_dev;
};
@@ -222,8 +223,10 @@ static void rockchip_rgb_encoder_enable(struct drm_encoder *encoder)
if (rgb->funcs && rgb->funcs->enable)
rgb->funcs->enable(rgb);
if (rgb->phy)
if (rgb->phy && !rgb->phy_enabled) {
phy_power_on(rgb->phy);
rgb->phy_enabled = true;
}
if (rgb->panel) {
drm_panel_prepare(rgb->panel);
@@ -240,8 +243,10 @@ static void rockchip_rgb_encoder_disable(struct drm_encoder *encoder)
drm_panel_unprepare(rgb->panel);
}
if (rgb->phy)
if (rgb->phy && rgb->phy_enabled) {
phy_power_off(rgb->phy);
rgb->phy_enabled = false;
}
if (rgb->funcs && rgb->funcs->disable)
rgb->funcs->disable(rgb);
@@ -330,6 +335,20 @@ static int rockchip_rgb_encoder_loader_protect(struct drm_encoder *encoder,
if (rgb->panel)
panel_simple_loader_protect(rgb->panel);
if (on) {
phy_init(rgb->phy);
if (rgb->phy) {
rgb->phy->power_count++;
rgb->phy_enabled = true;
}
} else {
phy_exit(rgb->phy);
if (rgb->phy) {
rgb->phy->power_count--;
rgb->phy_enabled = false;
}
}
return 0;
}