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drm/bridge: tc358767: Only print GPIO debug output if they actually occur

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Currently the output the following output is printed upon each interrupt:
 tc358767 1-000f: GPIO0:
This spams the kernel log while debugging an IRQ storm from the bridge.
Only print the debug output if the GPIO hotplug event actually happened.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Link: https://lore.kernel.org/r/20240904120546.1845856-3-alexander.stein@ew.tq-group.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240904120546.1845856-3-alexander.stein@ew.tq-group.com
This commit is contained in:
Alexander Stein 2024-09-04 14:05:44 +02:00 committed by Neil Armstrong
parent 446967304b
commit 31735a97cb
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/bridge/tc358767.c
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@ -2229,11 +2229,11 @@ static irqreturn_t tc_irq_handler(int irq, void *arg)
bool h = val & INT_GPIO_H(tc->hpd_pin);
bool lc = val & INT_GPIO_LC(tc->hpd_pin);
dev_dbg(tc->dev, "GPIO%d: %s %s\n", tc->hpd_pin,
h ? "H" : "", lc ? "LC" : "");
if (h || lc)
if (h || lc) {
dev_dbg(tc->dev, "GPIO%d: %s %s\n", tc->hpd_pin,
h ? "H" : "", lc ? "LC" : "");
drm_kms_helper_hotplug_event(tc->bridge.dev);
}
}
regmap_write(tc->regmap, INTSTS_G, val);