OPP: Allow config_clks helper for single clk case

There is a corner case with Tegra30, where we want to skip clk configuration via dev_pm_opp_set_opp(), but still want the OPP core to read the "opp-hz" property so we can find the right OPP via freq finding helpers. This is the easiest of the ways to make it work, without any special hacks in the OPP core. Allow config_clks to be passed for single clk case. Tested-by: Dmitry Osipenko <[email protected]> Signed-off-by: Viresh Kumar <[email protected]>
fracktal · Jul 12, 2022 · 2f71ae1 · 2f71ae1
1 parent 8174a3a
commit 2f71ae1
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
@@ -2191,7 +2191,7 @@ static int _opp_set_clknames(struct opp_table *opp_table, struct device *dev,
 		count = 1;
 
 	/* Fail early for invalid configurations */
-	if (!count || (config_clks && count == 1) || (!config_clks && count > 1))
+	if (!count || (!config_clks && count > 1))
 		return -EINVAL;
 
 	/* Another CPU that shares the OPP table has set the clkname ? */
@@ -2217,10 +2217,12 @@ static int _opp_set_clknames(struct opp_table *opp_table, struct device *dev,
 	}
 
 	opp_table->clk_count = count;
+	opp_table->config_clks = config_clks;
 
 	/* Set generic single clk set here */
 	if (count == 1) {
-		opp_table->config_clks = _opp_config_clk_single;
+		if (!opp_table->config_clks)
+			opp_table->config_clks = _opp_config_clk_single;
 
 		/*
 		 * We could have just dropped the "clk" field and used "clks"
@@ -2235,8 +2237,6 @@ static int _opp_set_clknames(struct opp_table *opp_table, struct device *dev,
 		 * too.
 		 */
 		opp_table->clk = opp_table->clks[0];
-	} else {
-		opp_table->config_clks = config_clks;
 	}
 
 	return 0;