[Freedreno] [PATCH 2/4] clk: qcom: gdsc: Don't override existing gdsc pd functions

[Jordan Crouse]

In very extreme cases an individual gdsc may wish to override the
power domain enable or disable callback functions for their own
purposes. Only set the generic gdsc callback if the function pointers
are not already set.

Signed-off-by: Jordan Crouse <jcrouse at codeaurora.org>
---
 drivers/clk/qcom/gdsc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/qcom/gdsc.c b/drivers/clk/qcom/gdsc.c
index b6adca1f3918..7b55368b9a9c 100644
--- a/drivers/clk/qcom/gdsc.c
+++ b/drivers/clk/qcom/gdsc.c
@@ -394,8 +394,10 @@ static int gdsc_init(struct gdsc *sc)
 	else
 		gdsc_clear_mem_on(sc);
 
-	sc->pd.power_off = gdsc_disable;
-	sc->pd.power_on = gdsc_enable;
+	if (!sc->pd.power_off)
+		sc->pd.power_off = gdsc_disable;
+	if (!sc->pd.power_on)
+		sc->pd.power_on = gdsc_enable;
 	pm_genpd_init(&sc->pd, NULL, !on);
 
 	return 0;
-- 
2.18.0