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drivers: gpio: omap: add support for parsing additional gpio parameters
With DM_GPIO, gpio parameters like ACTIVE_(LOW/HIGH) are to be parsed in xlate gpio drivers-ops. Since xlate is not implemented in omap_gpio driver, the driver considers all gpio to be ACTIVE_HIGH which is the default case and fails to return actual gpio status for ACTIVE_LOW gpios. So adding .xlate ops to omap_gpio. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
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@ -25,6 +25,7 @@
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#include <asm/io.h>
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#include <asm/errno.h>
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#include <malloc.h>
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#include <dt-bindings/gpio/gpio.h>
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DECLARE_GLOBAL_DATA_PTR;
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@ -276,12 +277,22 @@ static int omap_gpio_get_function(struct udevice *dev, unsigned offset)
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return GPIOF_INPUT;
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}
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static int omap_gpio_xlate(struct udevice *dev, struct gpio_desc *desc,
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struct fdtdec_phandle_args *args)
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{
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desc->offset = args->args[0];
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desc->flags = args->args[1] & GPIO_ACTIVE_LOW ? GPIOD_ACTIVE_LOW : 0;
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return 0;
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}
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static const struct dm_gpio_ops gpio_omap_ops = {
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.direction_input = omap_gpio_direction_input,
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.direction_output = omap_gpio_direction_output,
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.get_value = omap_gpio_get_value,
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.set_value = omap_gpio_set_value,
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.get_function = omap_gpio_get_function,
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.xlate = omap_gpio_xlate,
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};
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static int omap_gpio_probe(struct udevice *dev)
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