diff options
| author | Billy Tsai <billy_tsai@aspeedtech.com> | 2020-10-30 13:54:50 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-18 19:20:26 +0100 |
| commit | e74e514c8ccaf05dd717144fb351f03795637a59 (patch) | |
| tree | 24ea333c02c7bd6cc35f6afc26ad247ee7e99fdf /drivers/pinctrl | |
| parent | d2e61c5202e63fd591023525965a7379ba493385 (diff) | |
pinctrl: aspeed: Fix GPI only function problem.
[ 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: 4d3d0e4272d8 ("pinctrl: Add core support for Aspeed SoCs")
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20201030055450.29613-1-billy_tsai@aspeedtech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/aspeed/pinctrl-aspeed.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed.c b/drivers/pinctrl/aspeed/pinctrl-aspeed.c index 54933665b5f8..93b5654ff282 100644 --- a/drivers/pinctrl/aspeed/pinctrl-aspeed.c +++ b/drivers/pinctrl/aspeed/pinctrl-aspeed.c @@ -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) |