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[209.132.180.67]) by mx.google.com with ESMTP id f14si3587319edt.92.2019.09.25.10.41.25; Wed, 25 Sep 2019 10:41:25 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-leds-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=sBWEo76a; spf=pass (google.com: best guess record for domain of linux-leds-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-leds-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2440145AbfIYRlX (ORCPT + 1 other); Wed, 25 Sep 2019 13:41:23 -0400 Received: from lelv0143.ext.ti.com ([198.47.23.248]:36232 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2443057AbfIYRlX (ORCPT ); Wed, 25 Sep 2019 13:41:23 -0400 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id x8PHfHwV037362; Wed, 25 Sep 2019 12:41:17 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1569433277; bh=aHsJPa6nLJ1doSiRxJ4VrusIRzoRPKjikt2gv7Z2juw=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=sBWEo76atRukGRRggbhSEGMvrBrA6tAV22eKsMSbiuReEzgMVzOifcwKgx7RFq2Ew m0j8pgbMDUSNJiCgnvBgti2tTAlPAmi4lcpQrEZlfjDDv0T4UCer8T1yarMmNGoBMA C7lO+2kgS2sKvaFdztBhci6hddVJna5MVgDnnQQ4= Received: from DLEE112.ent.ti.com (dlee112.ent.ti.com [157.170.170.23]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x8PHfHol000369 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 25 Sep 2019 12:41:17 -0500 Received: from DLEE115.ent.ti.com (157.170.170.26) by DLEE112.ent.ti.com (157.170.170.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Wed, 25 Sep 2019 12:41:10 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Wed, 25 Sep 2019 12:41:17 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id x8PHfHT8031197; Wed, 25 Sep 2019 12:41:17 -0500 From: Dan Murphy To: , CC: , , Dan Murphy Subject: [PATCH v9 13/15] leds: lp55xx: Update the lp55xx to use the multi color framework Date: Wed, 25 Sep 2019 12:46:14 -0500 Message-ID: <20190925174616.3714-14-dmurphy@ti.com> X-Mailer: git-send-email 2.22.0.214.g8dca754b1e In-Reply-To: <20190925174616.3714-1-dmurphy@ti.com> References: <20190925174616.3714-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-leds-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org Update the lp5523 to allow the use of the multi color framework. Signed-off-by: Dan Murphy --- drivers/leds/Kconfig | 1 + drivers/leds/leds-lp5523.c | 13 ++ drivers/leds/leds-lp55xx-common.c | 150 ++++++++++++++++++---- drivers/leds/leds-lp55xx-common.h | 11 ++ include/linux/platform_data/leds-lp55xx.h | 6 + 5 files changed, 157 insertions(+), 24 deletions(-) -- 2.22.0.214.g8dca754b1e diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 84f60e35c5ee..dc3d9f2194cd 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -377,6 +377,7 @@ config LEDS_LP50XX config LEDS_LP55XX_COMMON tristate "Common Driver for TI/National LP5521/5523/55231/5562/8501" depends on LEDS_LP5521 || LEDS_LP5523 || LEDS_LP5562 || LEDS_LP8501 + depends on LEDS_CLASS_MULTI_COLOR && OF select FW_LOADER select FW_LOADER_USER_HELPER help diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c index d0b931a136b9..8b2cdb98fed6 100644 --- a/drivers/leds/leds-lp5523.c +++ b/drivers/leds/leds-lp5523.c @@ -791,6 +791,18 @@ static ssize_t store_master_fader_leds(struct device *dev, return ret; } +static int lp5523_led_intensity(struct lp55xx_led *led, int chan_num) +{ + struct lp55xx_chip *chip = led->chip; + int ret; + + mutex_lock(&chip->lock); + ret = lp55xx_write(chip, LP5523_REG_LED_PWM_BASE + chan_num, + led->brightness); + mutex_unlock(&chip->lock); + return ret; +} + static int lp5523_led_brightness(struct lp55xx_led *led) { struct lp55xx_chip *chip = led->chip; @@ -857,6 +869,7 @@ static struct lp55xx_device_config lp5523_cfg = { .max_channel = LP5523_MAX_LEDS, .post_init_device = lp5523_post_init_device, .brightness_fn = lp5523_led_brightness, + .color_intensity_fn = lp5523_led_intensity, .set_led_current = lp5523_set_led_current, .firmware_cb = lp5523_firmware_loaded, .run_engine = lp5523_run_engine, diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c index 44ced02b49f9..0e4b3a9d3047 100644 --- a/drivers/leds/leds-lp55xx-common.c +++ b/drivers/leds/leds-lp55xx-common.c @@ -136,9 +136,26 @@ static int lp55xx_set_brightness(struct led_classdev *cdev, { struct lp55xx_led *led = cdev_to_lp55xx_led(cdev); struct lp55xx_device_config *cfg = led->chip->cfg; + int brightness_val[LP55XX_MAX_GROUPED_CHAN]; + int ret; + int i; + + if (led->mc_cdev.num_leds > 1) { + led_mc_calc_brightness(&led->mc_cdev, + brightness, brightness_val); + for (i = 0; i < led->mc_cdev.num_leds; i++) { + led->brightness = brightness_val[i]; + ret = cfg->color_intensity_fn(led, + led->grouped_channels[i]); + if (ret) + break; + } + } else { + led->brightness = (u8)brightness; + ret = cfg->brightness_fn(led); + } - led->brightness = (u8)brightness; - return cfg->brightness_fn(led); + return ret; } static int lp55xx_init_led(struct lp55xx_led *led, @@ -147,9 +164,9 @@ static int lp55xx_init_led(struct lp55xx_led *led, struct lp55xx_platform_data *pdata = chip->pdata; struct lp55xx_device_config *cfg = chip->cfg; struct device *dev = &chip->cl->dev; + int max_channel = cfg->max_channel; char name[32]; int ret; - int max_channel = cfg->max_channel; if (chan >= max_channel) { dev_err(dev, "invalid channel: %d / %d\n", chan, max_channel); @@ -159,10 +176,37 @@ static int lp55xx_init_led(struct lp55xx_led *led, if (pdata->led_config[chan].led_current == 0) return 0; + if (pdata->led_config[chan].name) { + led->cdev.name = pdata->led_config[chan].name; + } else { + snprintf(name, sizeof(name), "%s:channel%d", + pdata->label ? : chip->cl->name, chan); + led->cdev.name = name; + } + + if (pdata->led_config[chan].num_colors > 1) { + led->mc_cdev.led_cdev = &led->cdev; + led->cdev.brightness_set_blocking = lp55xx_set_brightness; + led->cdev.groups = lp55xx_led_groups; + led->mc_cdev.num_leds = pdata->led_config[chan].num_colors; + led->mc_cdev.available_colors = + pdata->led_config[chan].available_colors; + memcpy(led->channel_color, + pdata->led_config[chan].channel_color, + sizeof(led->channel_color)); + memcpy(led->grouped_channels, + pdata->led_config[chan].grouped_channels, + sizeof(led->grouped_channels)); + } else { + + led->cdev.default_trigger = + pdata->led_config[chan].default_trigger; + led->cdev.brightness_set_blocking = lp55xx_set_brightness; + } led->cdev.groups = lp55xx_led_groups; + led->led_current = pdata->led_config[chan].led_current; led->max_current = pdata->led_config[chan].max_current; led->chan_nr = pdata->led_config[chan].chan_nr; - led->cdev.default_trigger = pdata->led_config[chan].default_trigger; if (led->chan_nr >= max_channel) { dev_err(dev, "Use channel numbers between 0 and %d\n", @@ -170,18 +214,11 @@ static int lp55xx_init_led(struct lp55xx_led *led, return -EINVAL; } - led->cdev.brightness_set_blocking = lp55xx_set_brightness; - led->cdev.groups = lp55xx_led_groups; - - if (pdata->led_config[chan].name) { - led->cdev.name = pdata->led_config[chan].name; - } else { - snprintf(name, sizeof(name), "%s:channel%d", - pdata->label ? : chip->cl->name, chan); - led->cdev.name = name; - } + if (pdata->led_config[chan].num_colors > 1) + ret = led_classdev_multicolor_register(dev, &led->mc_cdev); + else + ret = led_classdev_register(dev, &led->cdev); - ret = led_classdev_register(dev, &led->cdev); if (ret) { dev_err(dev, "led register err: %d\n", ret); return ret; @@ -466,7 +503,6 @@ int lp55xx_register_leds(struct lp55xx_led *led, struct lp55xx_chip *chip) dev_err(&chip->cl->dev, "empty brightness configuration\n"); return -EINVAL; } - for (i = 0; i < num_channels; i++) { /* do not initialize channels that are not connected */ @@ -538,6 +574,76 @@ void lp55xx_unregister_sysfs(struct lp55xx_chip *chip) } EXPORT_SYMBOL_GPL(lp55xx_unregister_sysfs); +static int lp5xx_parse_common_child(struct device_node *np, + struct lp55xx_led_config *cfg, + int chan_num, bool is_multicolor) +{ + u32 led_number; + int ret; + + of_property_read_string(np, "chan-name", + &cfg[chan_num].name); + of_property_read_u8(np, "led-cur", + &cfg[chan_num].led_current); + of_property_read_u8(np, "max-cur", + &cfg[chan_num].max_current); + + ret = of_property_read_u32(np, "reg", &led_number); + if (ret) + return ret; + + if (led_number < 0 || led_number > 6) + return -EINVAL; + + if (is_multicolor) + cfg[chan_num].grouped_channels[cfg[chan_num].num_colors] + = led_number; + else + cfg[chan_num].chan_nr = led_number; + + return 0; +} + +static int lp5xx_parse_channel_child(struct device_node *np, + struct lp55xx_led_config *cfg, + int child_number) +{ + struct device_node *child; + int channel_color; + u32 color_id; + int ret; + + cfg[child_number].default_trigger = + of_get_property(np, "linux,default-trigger", NULL); + + ret = of_property_read_u32(np, "color", &channel_color); + if (ret) + channel_color = ret; + + + if (channel_color == LED_COLOR_ID_MULTI) { + for_each_child_of_node(np, child) { + ret = lp5xx_parse_common_child(child, cfg, + child_number, true); + if (ret) + return ret; + ret = of_property_read_u32(child, "color", &color_id); + if (ret) + return ret; + + cfg[child_number].channel_color[cfg[child_number].num_colors] = + color_id; + set_bit(color_id, &cfg[child_number].available_colors); + + cfg[child_number].num_colors++; + } + } else { + return lp5xx_parse_common_child(np, cfg, child_number, false); + } + + return 0; +} + struct lp55xx_platform_data *lp55xx_of_populate_pdata(struct device *dev, struct device_node *np) { @@ -546,6 +652,7 @@ struct lp55xx_platform_data *lp55xx_of_populate_pdata(struct device *dev, struct lp55xx_led_config *cfg; int num_channels; int i = 0; + int ret; pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) @@ -565,14 +672,9 @@ struct lp55xx_platform_data *lp55xx_of_populate_pdata(struct device *dev, pdata->num_channels = num_channels; for_each_child_of_node(np, child) { - cfg[i].chan_nr = i; - - of_property_read_string(child, "chan-name", &cfg[i].name); - of_property_read_u8(child, "led-cur", &cfg[i].led_current); - of_property_read_u8(child, "max-cur", &cfg[i].max_current); - cfg[i].default_trigger = - of_get_property(child, "linux,default-trigger", NULL); - + ret = lp5xx_parse_channel_child(child, cfg, i); + if (ret) + return ERR_PTR(-EINVAL); i++; } diff --git a/drivers/leds/leds-lp55xx-common.h b/drivers/leds/leds-lp55xx-common.h index 783ed5103ce5..d93813a72ec1 100644 --- a/drivers/leds/leds-lp55xx-common.h +++ b/drivers/leds/leds-lp55xx-common.h @@ -12,6 +12,10 @@ #ifndef _LEDS_LP55XX_COMMON_H #define _LEDS_LP55XX_COMMON_H +#include + +#define LP55XX_MAX_GROUPED_CHAN 4 + enum lp55xx_engine_index { LP55XX_ENGINE_INVALID, LP55XX_ENGINE_1, @@ -109,6 +113,9 @@ struct lp55xx_device_config { /* access brightness register */ int (*brightness_fn)(struct lp55xx_led *led); + /* access specific brightness register */ + int (*color_intensity_fn)(struct lp55xx_led *led, int chan_num); + /* current setting function */ void (*set_led_current) (struct lp55xx_led *led, u8 led_current); @@ -159,6 +166,7 @@ struct lp55xx_chip { * struct lp55xx_led * @chan_nr : Channel number * @cdev : LED class device + * @mc_cdev : Multi color class device * @led_current : Current setting at each led channel * @max_current : Maximun current at each led channel * @brightness : Brightness value @@ -167,9 +175,12 @@ struct lp55xx_chip { struct lp55xx_led { int chan_nr; struct led_classdev cdev; + struct led_classdev_mc mc_cdev; u8 led_current; u8 max_current; u8 brightness; + int channel_color[LP55XX_MAX_GROUPED_CHAN]; + int grouped_channels[LP55XX_MAX_GROUPED_CHAN]; struct lp55xx_chip *chip; }; diff --git a/include/linux/platform_data/leds-lp55xx.h b/include/linux/platform_data/leds-lp55xx.h index 96a787100fda..0ac29f537ab6 100644 --- a/include/linux/platform_data/leds-lp55xx.h +++ b/include/linux/platform_data/leds-lp55xx.h @@ -12,6 +12,8 @@ #ifndef _LEDS_LP55XX_H #define _LEDS_LP55XX_H +#include + /* Clock configuration */ #define LP55XX_CLOCK_AUTO 0 #define LP55XX_CLOCK_INT 1 @@ -23,6 +25,10 @@ struct lp55xx_led_config { u8 chan_nr; u8 led_current; /* mA x10, 0 if led is not connected */ u8 max_current; + int num_colors; + unsigned long available_colors; + u32 channel_color[LED_COLOR_ID_MAX]; + int grouped_channels[LED_COLOR_ID_MAX]; }; struct lp55xx_predef_pattern {