diff options
author | Milo Kim <[email protected]> | 2016-08-24 22:07:16 +0900 |
---|---|---|
committer | Krzysztof Kozlowski <[email protected]> | 2016-08-24 21:09:24 +0200 |
commit | 05b01dd936b46f2c3cfbb10bc89c0ec79c745e5d (patch) | |
tree | 9420b5613fa1062098bddc6c89d6636ad5e27cff /tools/perf/util/trace-event-scripting.c | |
parent | 5a5232d1932b5d1ca472037bc8b38c21fa0cb6f8 (diff) |
ARM: dts: exynos: Use 'hpd-gpios' instead of 'hpd-gpio'
This patch enables getting a HPD GPIO descriptor quicker.
The exynos-hdmi driver uses "hpd" for HDMI hot plug detection.
static int hdmi_resources_init(struct hdmi_context *hdata)
{
...
hdata->hpd_gpio = devm_gpiod_get(dev, "hpd", GPIOD_IN);
...
}
This calls 'of_find_gpio()' and it generates the GPIO consumer ID by referring
GPIO suffix. So 'hpd-gpios' is preferred on getting a GPIO descriptor.
However, if the device tree uses 'hpd-gpio', then the exynos-hdmi driver
always retries to get a GPIO descriptor because the first GPIO suffix is not
'gpio' but 'gpios'. So you always see the debug message below.
of_get_named_gpiod_flags: can't parse 'hpd-gpios' property of node '/soc/hdmi@14530000[0]'
Use the preferred property, 'hpd-gpios' instead of 'hpd-gpio'.
Acked-by: Rob Herring <[email protected]>
Reviewed-by: Andrzej Hajda <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Milo Kim <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions