On Wed, Jul 03, 2019 at 02:45:12PM -0700, Jeffrey Hugo wrote:
> Add basic support with a simple implementation that utilizes the generic
> read/write commands to allow device registers to be configured.
This looks good to me but I really don't know anything about DSI,
I'd appreciate some review from other people who do. I take it
there's some spec thing in DSI that says registers and bytes must
both be 8 bit?
A couple of minor comments, no need to resend just for these:
> + payload[0] = (char)reg;
> + payload[1] = (char)val;
Do you need the casts?
> + ret = mipi_dsi_generic_write(dsi, payload, 2);
> + return ret < 0 ? ret : 0;
Please just write an if statement, it helps with legibility.
> +struct regmap *__regmap_init_dsi(struct mipi_dsi_device *dsi,
> + const struct regmap_config *config,
> + struct lock_class_key *lock_key,
> + const char *lock_name)
> +{
> + return __regmap_init(&dsi->dev, &dsi_bus, &dsi->dev, config,
> + lock_key, lock_name);
> +}
> +EXPORT_SYMBOL_GPL(__regmap_init_dsi);
Perhaps validate that the config is OK (mainly the register/value
sizes)? Though I'm not sure it's worth it so perhaps not - up to
you.
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