| From 69b2db4a30d95a8c9a2a33dc73f5cc429a706872 Mon Sep 17 00:00:00 2001 |
| From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> |
| Date: Mon, 8 Apr 2013 11:36:13 +0200 |
| Subject: gpio-rcar: Add RCAR_GP_PIN macro |
| |
| Pins are numbered in the R-Car family documentation using a bank number |
| and a pin number in the bank. As the Linux pin number space is linear, |
| we need to flatten this by multiplying the bank number by 32 and adding |
| the pin number. The resulting number bear no directly visible |
| relationship to the documentation, making it error-prone. |
| |
| Add a RCAR_GP_PIN macro to convert from the documentation pin number |
| space to the linear Linux space. |
| |
| Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> |
| [horms+renesas@verge.net.au: non-trivial rebase on top of |
| "sh-pfc: r8a7779: Don't group USB OVC and PENC pins"] |
| Signed-off-by: Simon Horman <horms+renesas@verge.net.au> |
| |
| (cherry picked from commit 11df28ab76cd9e98e3e0bbbff8648d0a02509507) |
| Signed-off-by: Simon Horman <horms+renesas@verge.net.au> |
| --- |
| include/linux/platform_data/gpio-rcar.h | 2 ++ |
| 1 file changed, 2 insertions(+) |
| |
| diff --git a/include/linux/platform_data/gpio-rcar.h b/include/linux/platform_data/gpio-rcar.h |
| index 6c0027a3..2d8d6943 100644 |
| --- a/include/linux/platform_data/gpio-rcar.h |
| +++ b/include/linux/platform_data/gpio-rcar.h |
| @@ -24,4 +24,6 @@ struct gpio_rcar_config { |
| unsigned has_both_edge_trigger:1; |
| }; |
| |
| +#define RCAR_GP_PIN(bank, pin) (((bank) * 32) + (pin)) |
| + |
| #endif /* __GPIO_RCAR_H__ */ |
| -- |
| 1.8.4.3.gca3854a |
| |
