Instead of using the global pmc variable, pass around a pointer where possible. Also, replace most occurrences of pr_*() functions by their equivalent dev_*() functions, reusing the pmc->dev pointer. It's not possible to get completely rid of the global variable because some of the public API that this driver exposes still relies on it. Signed-off-by: Thierry Reding <treding@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com>