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sh-pfc: Make GPIO support optional

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When implemented as a separate IP block, GPIOs should be handled by a
separate driver. To make this possible GPIO support needs to be optional
in the sh-pfc driver.

If no GPIO data registers are supplied in the SoC information structure
skip registration of the gpiochip.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Laurent Pinchart 2013-03-10 03:19:44 +01:00 committed by Simon Horman
parent 542a564d2d
commit 1a4fd58f76
1 changed files with 3 additions and 0 deletions
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3
drivers/pinctrl/sh-pfc/gpio.c
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@ -354,6 +354,9 @@ int sh_pfc_register_gpiochip(struct sh_pfc *pfc)
unsigned int i;
int ret;
if (pfc->info->data_regs == NULL)
return 0;
/* Register the real GPIOs chip. */
chip = sh_pfc_add_gpiochip(pfc, gpio_pin_setup);
if (IS_ERR(chip))