A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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pinctrl: aspeed: Fix GPI only function problem.

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[ Upstream commit 9b92f5c51e9a41352d665f6f956bd95085a56a83 ]

Some gpio pin at aspeed soc is input only and the prefix name of these
pin is "GPI" only.
This patch fine-tune the condition of GPIO check from "GPIO" to "GPI"
and it will fix the usage error of banks D and E in the AST2400/AST2500
and banks T and U in the AST2600.

Fixes: 4d3d0e4272 ("pinctrl: Add core support for Aspeed SoCs")
Signed-off-by: Billy Tsai <[email protected]>
Reviewed-by: Andrew Jeffery <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
This commit is contained in:
Billy Tsai 2020-10-30 13:54:50 +08:00 • committed by Greg Kroah-Hartman
commit e74e514c8c
1 changed files with 4 additions and 3 deletions
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7
drivers/pinctrl/aspeed/pinctrl-aspeed.c
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@ -277,13 +277,14 @@ int aspeed_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned int function,
static bool aspeed_expr_is_gpio(const struct aspeed_sig_expr *expr)
{
/*
* The signal type is GPIO if the signal name has "GPIO" as a prefix.
* The signal type is GPIO if the signal name has "GPI" as a prefix.
* strncmp (rather than strcmp) is used to implement the prefix
* requirement.
*
* expr->signal might look like "GPIOT3" in the GPIO case.
* expr->signal might look like "GPIOB1" in the GPIO case.
* expr->signal might look like "GPIT0" in the GPI case.
*/
return strncmp(expr->signal, "GPIO", 4) == 0;
return strncmp(expr->signal, "GPI", 3) == 0;
}
static bool aspeed_gpio_in_exprs(const struct aspeed_sig_expr **exprs)