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Wed, 23 Apr 2025 01:55:53 -0700 (PDT) Received: from [127.0.1.1] ([2a01:cb1d:dc:7e00:74b0:71bd:6dda:dcc1]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-44092d3654dsm17731685e9.28.2025.04.23.01.55.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Apr 2025 01:55:53 -0700 (PDT) From: Bartosz Golaszewski Date: Wed, 23 Apr 2025 10:55:44 +0200 Subject: [PATCH 6/6] hid: mcp2221: use new line value setter callbacks Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250423-gpiochip-set-rv-hid-v1-6-2e6762b582f6@linaro.org> References: <20250423-gpiochip-set-rv-hid-v1-0-2e6762b582f6@linaro.org> In-Reply-To: <20250423-gpiochip-set-rv-hid-v1-0-2e6762b582f6@linaro.org> To: Jiri Kosina , Benjamin Tissoires , Linus Walleij , Bartosz Golaszewski , Rishi Gupta Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-i2c@vger.kernel.org, Bartosz Golaszewski X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; 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a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 From: Bartosz Golaszewski struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Signed-off-by: Bartosz Golaszewski --- drivers/hid/hid-mcp2221.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/hid/hid-mcp2221.c b/drivers/hid/hid-mcp2221.c index 0f93c22a479f..6c0ac14f11a6 100644 --- a/drivers/hid/hid-mcp2221.c +++ b/drivers/hid/hid-mcp2221.c @@ -624,10 +624,10 @@ static int mcp_gpio_get(struct gpio_chip *gc, return ret; } -static void mcp_gpio_set(struct gpio_chip *gc, - unsigned int offset, int value) +static int mcp_gpio_set(struct gpio_chip *gc, unsigned int offset, int value) { struct mcp2221 *mcp = gpiochip_get_data(gc); + int ret; memset(mcp->txbuf, 0, 18); mcp->txbuf[0] = MCP2221_GPIO_SET; @@ -638,8 +638,10 @@ static void mcp_gpio_set(struct gpio_chip *gc, mcp->txbuf[mcp->gp_idx] = !!value; mutex_lock(&mcp->lock); - mcp_send_data_req_status(mcp, mcp->txbuf, 18); + ret = mcp_send_data_req_status(mcp, mcp->txbuf, 18); mutex_unlock(&mcp->lock); + + return ret; } static int mcp_gpio_dir_set(struct mcp2221 *mcp, @@ -1206,7 +1208,7 @@ static int mcp2221_probe(struct hid_device *hdev, mcp->gc->direction_input = mcp_gpio_direction_input; mcp->gc->direction_output = mcp_gpio_direction_output; mcp->gc->get_direction = mcp_gpio_get_direction; - mcp->gc->set = mcp_gpio_set; + mcp->gc->set_rv = mcp_gpio_set; mcp->gc->get = mcp_gpio_get; mcp->gc->ngpio = MCP_NGPIO; mcp->gc->base = -1;