Hi! > The device has the ability to group LED output into control banks > so that multiple LED banks can be controlled with the same mixing and > brightness. Inversely the LEDs can also be controlled independently. Inversely? > --- /dev/null > +++ b/drivers/leds/leds-lp50xx.c > @@ -0,0 +1,784 @@ > +// SPDX-License-Identifier: GPL-2.0 > +// TI LP50XX LED chip family driver > +// Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/ > + Can we get https here and in the binding document? Please run this through checkpatch -- I believe it will have some comments. > + > + device_for_each_child_node(priv->dev, child) { > + led = &priv->leds[i]; > + ret = fwnode_property_count_u32(child, "reg"); > + if (ret < 0) { > + dev_err(&priv->client->dev, > + "reg property is invalid\n"); > + return -EINVAL; is handle_put(child) needed here? > + } > + if (ret > 1) { > + priv->num_of_banked_leds = ret; > + if (priv->num_of_banked_leds > > + priv->chip_info->max_modules) { > + dev_err(&priv->client->dev, > + "reg property is invalid\n"); > + ret = -EINVAL; > + fwnode_handle_put(child); > + goto child_out; > + } > + > + ret = fwnode_property_read_u32_array(child, > + "reg", > + led_banks, > + ret); Move this to subfunction to reduce the indentation? (Or, just refactor it somehow). > + if (ret) { > + dev_err(&priv->client->dev, > + "reg property is missing\n"); > + fwnode_handle_put(child); > + goto child_out; > + } Create label that does the handle_put so you don't need to repeat it quite so often? > + fwnode_for_each_child_node(child, led_node) { > + ret = fwnode_property_read_u32(led_node, "color", > + &color_id); > + if (ret) > + dev_err(priv->dev, "Cannot read color\n"); > + > + mc_led_info[num_colors].color_index = color_id; This uses undefined value. > + ret = lp50xx_reset(led); Does the GPIO need to be disabled before enabling it for reset? Best regards, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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