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Tue, 10 Jun 2025 05:38:03 -0700 (PDT) Received: from [127.0.1.1] ([2a01:cb1d:dc:7e00:4d:e52b:812d:eb7c]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-45213759fb2sm142476805e9.38.2025.06.10.05.38.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Jun 2025 05:38:03 -0700 (PDT) From: Bartosz Golaszewski Date: Tue, 10 Jun 2025 14:37:59 +0200 Subject: [PATCH 3/4] net: can: mcp251x: use new GPIO line value setter callbacks Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250610-gpiochip-set-rv-net-v1-3-35668dd1c76f@linaro.org> References: <20250610-gpiochip-set-rv-net-v1-0-35668dd1c76f@linaro.org> In-Reply-To: <20250610-gpiochip-set-rv-net-v1-0-35668dd1c76f@linaro.org> To: Andrew Lunn , Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Linus Walleij , Bartosz Golaszewski , "Chester A. Unal" , Daniel Golle , DENG Qingfang , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , Marc Kleine-Budde , Vincent Mailhol , Heiner Kallweit , Russell King Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-can@vger.kernel.org, linux-arm-msm@vger.kernel.org, Bartosz Golaszewski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2241; i=bartosz.golaszewski@linaro.org; h=from:subject:message-id; bh=KLDDGKd5WeP1ZH7PFOPPjiypGPKpSmUdnfupIQJn/j4=; b=owEBbQKS/ZANAwAKARGnLqAUcddyAcsmYgBoSCcm2R5upegqsW89/iBNvrpgrj3SxMSCFC3Nl TOttqE00BqJAjMEAAEKAB0WIQQWnetsC8PEYBPSx58Rpy6gFHHXcgUCaEgnJgAKCRARpy6gFHHX co7eD/4q7jk4pUE8gWfdeMax9QSwEEkHfhqOylZzhdJH37vjfb5+genXs5+a9aSiMhVv+CUzVRo 3fzN6/I10/CJqsoImMl+BGSVREdFJcXIVrezmcX3g/CoDU5C5lbMo/PXX/V0c3VycIEYSOm0gzN bK8W/frTMV20VkpA9RLNqZEdT5b+3tbAXY3KUruz/73xY8myLP1bsvqIJcSy3+8fpw0XzH6mqSO fJ1O+wf69HliyNoYdUIuJ4RNUabK6X3knM3Fq5i2S3Utkpx0QTaAch5ftKvyI82zEjOyyf3B8FZ +d/SAeGCuhnoN5mWeVWSPBVUU2N1zxNJPXhQ3Oc1VhFUdWoltDMsO0pAwFzSZbaGuFq2VRW9Mq/ h2ECjHxSj537C92XxO4LIlDV7LNKSDWKfQqvuee9lOH4H4oqCgfDwoonedPMeoUUJFP2xs80v33 77CBBKvc7mrkCSwH5ZgVX+ShUZvq6TP2T70qICUOgnQOG+j6Cb/rpEeYI1XdtZqX3MTSCiU+zlA Sl6LJqWqF5NCbc5Tp4TbMXJ7p5Bq9ATgsoC5IFpIDbWzAHIYWDpNQRe+dQB+NT2SAGWlct361Hn N7MHWvrch2Y/nuHsq7YlV1MgLW8lEFXgpk4FW4tev1/7VTv2SenC2isVuMt0TlfEhDucadN6ghF oHodahRBqdw+TJA== X-Developer-Key: i=bartosz.golaszewski@linaro.org; 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/net/can/spi/mcp251x.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/net/can/spi/mcp251x.c b/drivers/net/can/spi/mcp251x.c index ec5c64006a16f703bc816983765584c5f3ac76e8..7545497d14b46c6388f3976c2bf7b9a99e959c1e 100644 --- a/drivers/net/can/spi/mcp251x.c +++ b/drivers/net/can/spi/mcp251x.c @@ -530,8 +530,8 @@ static int mcp251x_gpio_get_multiple(struct gpio_chip *chip, return 0; } -static void mcp251x_gpio_set(struct gpio_chip *chip, unsigned int offset, - int value) +static int mcp251x_gpio_set(struct gpio_chip *chip, unsigned int offset, + int value) { struct mcp251x_priv *priv = gpiochip_get_data(chip); u8 mask, val; @@ -545,9 +545,11 @@ static void mcp251x_gpio_set(struct gpio_chip *chip, unsigned int offset, priv->reg_bfpctrl &= ~mask; priv->reg_bfpctrl |= val; + + return 0; } -static void +static int mcp251x_gpio_set_multiple(struct gpio_chip *chip, unsigned long *maskp, unsigned long *bitsp) { @@ -561,7 +563,7 @@ mcp251x_gpio_set_multiple(struct gpio_chip *chip, val = FIELD_PREP(BFPCTRL_BFS_MASK, val); if (!mask) - return; + return 0; mutex_lock(&priv->mcp_lock); mcp251x_write_bits(priv->spi, BFPCTRL, mask, val); @@ -569,6 +571,8 @@ mcp251x_gpio_set_multiple(struct gpio_chip *chip, priv->reg_bfpctrl &= ~mask; priv->reg_bfpctrl |= val; + + return 0; } static void mcp251x_gpio_restore(struct spi_device *spi) @@ -594,8 +598,8 @@ static int mcp251x_gpio_setup(struct mcp251x_priv *priv) gpio->get_direction = mcp251x_gpio_get_direction; gpio->get = mcp251x_gpio_get; gpio->get_multiple = mcp251x_gpio_get_multiple; - gpio->set = mcp251x_gpio_set; - gpio->set_multiple = mcp251x_gpio_set_multiple; + gpio->set_rv = mcp251x_gpio_set; + gpio->set_multiple_rv = mcp251x_gpio_set_multiple; gpio->base = -1; gpio->ngpio = ARRAY_SIZE(mcp251x_gpio_names); gpio->names = mcp251x_gpio_names;