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authorhao_zhang <hao5781286@gmail.com>2018-01-09 13:59:02 +0800
committerLinus Walleij <linus.walleij@linaro.org>2018-01-10 14:44:20 +0100
commit32e21f084faacc69014b4bb082db04890fad5f1b (patch)
treea14a9a23d8e58ae412375e76b9d171e6586f75ca /drivers/pinctrl/sunxi
parenta3a093ae02e2ae81499ad9e78516dccd72906c25 (diff)
downloadlinux-32e21f084faacc69014b4bb082db04890fad5f1b.tar.gz
pinctrl: sunxi-pinctrl: fix pin funtion can not be match correctly.
Pin function can not be match correctly when SUNXI_PIN describe with
mutiple variant and same function.

such as:
on pinctrl-sun4i-a10.c

SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 2),
		SUNXI_FUNCTION(0x0, "gpio_in"),
		SUNXI_FUNCTION(0x1, "gpio_out"),
		SUNXI_FUNCTION_VARIANT(0x2, "pwm",    /* PWM0 */
			PINCTRL_SUN4I_A10 |
			PINCTRL_SUN7I_A20),
		SUNXI_FUNCTION_VARIANT(0x3, "pwm",    /* PWM0 */
			PINCTRL_SUN8I_R40)),

it would always match to the first variant function
(PINCTRL_SUN4I_A10, PINCTRL_SUN7I_A20)

so we should add variant compare on it.

Signed-off-by: hao_zhang <hao5781286@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/sunxi')
-rw-r--r--drivers/pinctrl/sunxi/pinctrl-sunxi.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
index 4b6cb25bc796..131adf7953cd 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c
@@ -83,7 +83,9 @@ sunxi_pinctrl_desc_find_function_by_name(struct sunxi_pinctrl *pctl,
 			struct sunxi_desc_function *func = pin->functions;
 
 			while (func->name) {
-				if (!strcmp(func->name, func_name))
+				if (!strcmp(func->name, func_name) &&
+					(!func->variant ||
+					func->variant & pctl->variant))
 					return func;
 
 				func++;