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[93.34.89.197]) by smtp.googlemail.com with ESMTPSA id b7-20020a5d4b87000000b002cfe0ab1246sm7165167wrt.20.2023.03.19.12.18.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Mar 2023 12:18:38 -0700 (PDT) From: Christian Marangi To: Andrew Lunn , Florian Fainelli , Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Heiner Kallweit , Russell King , Gregory Clement , Sebastian Hesselbarth , Andy Gross , Bjorn Andersson , Konrad Dybcio , Pavel Machek , Lee Jones , Christian Marangi , John Crispin , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-leds@vger.kernel.org Subject: [net-next PATCH v5 03/15] net: dsa: qca8k: add LEDs blink_set() support Date: Sun, 19 Mar 2023 20:18:02 +0100 Message-Id: <20230319191814.22067-4-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230319191814.22067-1-ansuelsmth@gmail.com> References: <20230319191814.22067-1-ansuelsmth@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add LEDs blink_set() support to qca8k Switch Family. These LEDs support hw accellerated blinking at a fixed rate of 4Hz. Reject any other value since not supported by the LEDs switch. Signed-off-by: Christian Marangi Reviewed-by: Andrew Lunn --- drivers/net/dsa/qca/qca8k-leds.c | 38 ++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/drivers/net/dsa/qca/qca8k-leds.c b/drivers/net/dsa/qca/qca8k-leds.c index 5a29413ba94a..d0a37660faa2 100644 --- a/drivers/net/dsa/qca/qca8k-leds.c +++ b/drivers/net/dsa/qca/qca8k-leds.c @@ -127,6 +127,43 @@ qca8k_led_brightness_get(struct qca8k_led *led) return val == QCA8K_LED_ALWAYS_ON; } +static int +qca8k_cled_blink_set(struct led_classdev *ldev, + unsigned long *delay_on, + unsigned long *delay_off) +{ + struct qca8k_led *led = container_of(ldev, struct qca8k_led, cdev); + u32 mask, val = QCA8K_LED_ALWAYS_BLINK_4HZ; + struct qca8k_led_pattern_en reg_info; + struct qca8k_priv *priv = led->priv; + + if (*delay_on == 0 && *delay_off == 0) { + *delay_on = 125; + *delay_off = 125; + } + + if (*delay_on != 125 || *delay_off != 125) { + /* The hardware only supports blinking at 4Hz. Fall back + * to software implementation in other cases. + */ + return -EINVAL; + } + + qca8k_get_enable_led_reg(led->port_num, led->led_num, ®_info); + + if (led->port_num == 0 || led->port_num == 4) { + mask = QCA8K_LED_PATTERN_EN_MASK; + val <<= QCA8K_LED_PATTERN_EN_SHIFT; + } else { + mask = QCA8K_LED_PHY123_PATTERN_EN_MASK; + } + + regmap_update_bits(priv->regmap, reg_info.reg, mask << reg_info.shift, + val << reg_info.shift); + + return 0; +} + static int qca8k_parse_port_leds(struct qca8k_priv *priv, struct fwnode_handle *port, int port_num) { @@ -185,6 +222,7 @@ qca8k_parse_port_leds(struct qca8k_priv *priv, struct fwnode_handle *port, int p port_led->cdev.max_brightness = 1; port_led->cdev.brightness_set_blocking = qca8k_cled_brightness_set_blocking; + port_led->cdev.blink_set = qca8k_cled_blink_set; init_data.default_label = ":port"; init_data.devicename = "qca8k"; init_data.fwnode = led; -- 2.39.2