From c2ebf4754b92f9fb1e422c8c068da7f0b12c9432 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 31 May 2016 17:05:16 +0900 Subject: pinctrl: uniphier: introduce capability flag The core part of the UniPhier pinctrl driver needs to support a new capability for upcoming UniPhier ARMv8 SoCs. This sometimes happens because pinctrl drivers include really SoC-specific stuff. This commit intends to tidy up SoC-specific parameters of the existing drivers before adding the new one. Having just one flag would be better than adding a new struct member every time a new SoC-specific capability comes up. At this time, there is one flag, UNIPHIER_PINCTRL_CAPS_DBGMUX_SEPARATE. This capability (I'd say rather quirk) was added for PH1-Pro4 and PH1-Pro5 as requirement from a customer. For those SoCs, one pin-mux setting is controlled by the combination of two separate registers; the LSB bits at register offset (8 * N) and the MSB bits at (8 * N + 4). Because it is impossible to update two separate registers atomically, the LOAD_PINCTRL register should be set in order to make the pin-mux settings really effective. Signed-off-by: Masahiro Yamada Signed-off-by: Linus Walleij --- drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c') diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c index 3735eb7..547359e 100644 --- a/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c +++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c @@ -1526,9 +1526,7 @@ static struct uniphier_pinctrl_socdata uniphier_pro4_pindata = { .groups_count = ARRAY_SIZE(uniphier_pro4_groups), .functions = uniphier_pro4_functions, .functions_count = ARRAY_SIZE(uniphier_pro4_functions), - .mux_bits = 4, - .reg_stride = 8, - .load_pinctrl = true, + .caps = UNIPHIER_PINCTRL_CAPS_DBGMUX_SEPARATE, }; static int uniphier_pro4_pinctrl_probe(struct platform_device *pdev) -- cgit v1.1