soc: pinctrl-lpi: Disable core clock only if it is enabled

Clock driver throws warning when clock disable is called
without enable. Disable core clock only if the respective clock
enable is successful to avoid this warning.

Change-Id: I489647a444c9be326e5805c353385240c6c6d0fc
Signed-off-by: Aditya Bavanari <abavanar@codeaurora.org>

soc/pinctrl-lpi.c

@@ -110,6 +110,7 @@ struct lpi_gpio_state {
 	char __iomem        *base;
 	struct clk          *lpass_core_hw_vote;
 	struct mutex         slew_access_lock;
+	bool core_hw_vote_status;
 };
 
 static const char *const lpi_gpio_groups[] = {
@@ -710,6 +711,7 @@ static int lpi_pinctrl_probe(struct platform_device *pdev)
 	}
 	state->lpass_core_hw_vote = lpass_core_hw_vote;
 
+	state->core_hw_vote_status = false;
 	pm_runtime_set_autosuspend_delay(&pdev->dev, LPI_AUTO_SUSPEND_DELAY);
 	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_set_suspended(&pdev->dev);
@@ -760,10 +762,12 @@ int lpi_pinctrl_runtime_resume(struct device *dev)
 	}
 
 	ret = clk_prepare_enable(state->lpass_core_hw_vote);
-	if (ret < 0) {
+	if (ret < 0)
 		dev_err(dev, "%s:lpass core hw island enable failed\n",
 			__func__);
-	}
+	else
+		state->core_hw_vote_status = true;
+
 	pm_runtime_set_autosuspend_delay(dev, LPI_AUTO_SUSPEND_DELAY);
 	return 0;
 }
@@ -776,7 +780,11 @@ int lpi_pinctrl_runtime_suspend(struct device *dev)
 		dev_dbg(dev, "%s: Invalid core hw node\n", __func__);
 		return 0;
 	}
-	clk_disable_unprepare(state->lpass_core_hw_vote);
+
+	if (state->core_hw_vote_status) {
+		clk_disable_unprepare(state->lpass_core_hw_vote);
+		state->core_hw_vote_status = false;
+	}
 	return 0;
 }