pinctrl: qcom: fix wrong write in update_dual_edge

Fix a typo in the readl/writel accessor conversion where val is used
instead of pol changing the behavior of the original code.

Cc: stable@vger.kernel.org
Fixes: 6c736989 pinctrl: qcom: Introduce readl/writel accessors
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200414003726.25347-1-ansuelsmth@gmail.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/qcom/pinctrl-msm.c

@@ -697,7 +697,7 @@ static void msm_gpio_update_dual_edge_pos(struct msm_pinctrl *pctrl,
 
 		pol = msm_readl_intr_cfg(pctrl, g);
 		pol ^= BIT(g->intr_polarity_bit);
-		msm_writel_intr_cfg(val, pctrl, g);
+		msm_writel_intr_cfg(pol, pctrl, g);
 
 		val2 = msm_readl_io(pctrl, g) & BIT(g->in_bit);
 		intstat = msm_readl_intr_status(pctrl, g);