clk: qcom: Move qcom_gate_clk_en() to C file

This avoids having to inline it separately into every single clock driver,
when U-Boot is built with support for multiple SoCs.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Reviewed-by: Casey Connolly <casey.connolly@linaro.org>
Link: https://lore.kernel.org/r/20250424-apq8016-clock-fixes2-v2-2-fcc371c9e45f@linaro.org
Signed-off-by: Casey Connolly <casey.connolly@linaro.org>
diff --git a/drivers/clk/qcom/clock-qcom.c b/drivers/clk/qcom/clock-qcom.c
index 7687bbe..5018851 100644
--- a/drivers/clk/qcom/clock-qcom.c
+++ b/drivers/clk/qcom/clock-qcom.c
@@ -74,6 +74,21 @@
 	} while ((val != BRANCH_ON_VAL) && (val != BRANCH_NOC_FSM_ON_VAL));
 }
 
+int qcom_gate_clk_en(const struct msm_clk_priv *priv, unsigned long id)
+{
+	u32 val;
+	if (id >= priv->data->num_clks || priv->data->clks[id].reg == 0) {
+		log_err("gcc@%#08llx: unknown clock ID %lu!\n",
+			priv->base, id);
+		return -ENOENT;
+	}
+
+	val = readl(priv->base + priv->data->clks[id].reg);
+	writel(val | priv->data->clks[id].en_val, priv->base + priv->data->clks[id].reg);
+
+	return 0;
+}
+
 #define APPS_CMD_RCGR_UPDATE BIT(0)
 
 /* Update clock command via CMD_RCGR */