From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4939A331A6E; Sat, 12 Sep 2026 18:42:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789238559; cv=none; b=elKSr23JIWsnTkB2E5UxiIGSbCoyjRcEOHJ2abJmpZKwhCZUSsJsXm/gW7d+C6SGxJch9ysjlrCWhMnwye+bLBSuG6XBWU0HgwvU5KMD5U4mh3n0y+DMWHeJMDv8xUlKv90udTdPCDXodDBckSjwkIbX32tM8gdpfz9i+mP+EAE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789238559; c=relaxed/simple; bh=uwH3wn544SS23/xtPJFdf0DssEBUsti8rbUkfPYRAAY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Ghsdxqz6DSYmKpOEINJ5GI8WGBCY44Yq34n8oWdngYDA0jsdN9ZEravg0bYBtqhfebF1quj1fcvKrO1/9tFwEFNsTVj1BYCsBxJKkb6p8CModtjla0NJSLrAL2ADlIoDby5kSLaFO2z84mly4gFlZdEYoEq+fPu6iFVY6qwvwp0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=nTG6DaNG; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="nTG6DaNG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AEA5A1F000FF; Sat, 12 Sep 2026 18:42:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789238557; bh=rnOBwptMwcajURSX0NctdRcfQV7CnAonSeBAiwekNEs=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=nTG6DaNGqE7uOuFef8hKaDQrC3MCdvW3dUdj4p73sxRlHtCWXMDprJlgx1Hpi4SYx fL2Yx04BliO9jIX7FhggVq5ClAXRJEdn0bQo5IRKz38gcLFHx3GUyYEuD6VZwoYyLE ao7JvKmkQwGeZdCVG3jFBzIjDBZyoosTvFSppfMs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Cosmo Chou , Bartosz Golaszewski , Lee Jones , Sasha Levin Subject: [PATCH 5.15 484/935] leds: pca9532: Fix inverted GPIO output polarity Date: Sat, 12 Sep 2026 08:58:34 +0200 Message-ID: <20260912065537.922100356@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065526.833703348@linuxfoundation.org> References: <20260912065526.833703348@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Cosmo Chou [ Upstream commit 65a38a28a0b04af19a5e1fbf3869051412eeac96 ] The pca9532_gpio_set_value() function incorrectly mapped the requested value to PCA9532_ON and PCA9532_OFF, inverting the GPIO output polarity. A requested logical high (val=1) incorrectly enabled the LED output driver, which on this open-drain device pulls the pin low, while a requested logical low (val=0) released the pin. Correct the mapping so that val=1 yields PCA9532_OFF (pin released / high-impedance) and val=0 yields PCA9532_ON (pin driven low). pca9532_gpio_direction_input() is also updated to pass val=1 to pca9532_gpio_set_value() to align with the corrected polarity mapping, ensuring the pin remains not driven when configured as an input. Fixes: 3c1ab50d0a31 ("drivers/leds/leds-pca9532.c: add gpio capability") Signed-off-by: Cosmo Chou Reviewed-by: Bartosz Golaszewski Link: https://patch.msgid.link/20260703014201.69829-1-chou.cosmo@gmail.com Signed-off-by: Lee Jones Signed-off-by: Sasha Levin --- drivers/leds/leds-pca9532.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c index 017794bb87ae4..9ddcaf2bb4ff6 100644 --- a/drivers/leds/leds-pca9532.c +++ b/drivers/leds/leds-pca9532.c @@ -285,9 +285,9 @@ static void pca9532_gpio_set_value(struct gpio_chip *gc, unsigned offset, int va struct pca9532_led *led = &data->leds[offset]; if (val) - led->state = PCA9532_ON; - else led->state = PCA9532_OFF; + else + led->state = PCA9532_ON; pca9532_setled(led); } @@ -305,7 +305,7 @@ static int pca9532_gpio_get_value(struct gpio_chip *gc, unsigned offset) static int pca9532_gpio_direction_input(struct gpio_chip *gc, unsigned offset) { /* To use as input ensure pin is not driven */ - pca9532_gpio_set_value(gc, offset, 0); + pca9532_gpio_set_value(gc, offset, 1); return 0; } -- 2.53.0