Re: [PATCH] drm/tegra: Clean up GPIO includes

[Daniel Vetter <daniel-/w4YWyX8dFk@public.gmane.org>]

On Wed, Apr 15, 2020 at 02:24:27PM +0200, Linus Walleij wrote:
> The Tegra DRM drivers includes the legacy GPIO headers
> <linux/gpio.h> and <linux/of_gpio.h> but what it really
> uses is <linux/gpio/consumer.h> since only gpio_desc
> structs are ever referenced.
> 
> Include the right header on the top level tegra/drm.h
> file and drop all the surplus includes.
> 
> Signed-off-by: Linus Walleij <linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>

Hm, I wonder whether we should do similar splits for drm_bridge and
drm_panel, so that drivers don't pick the wrong interfaces ...

Anyway this looks neat, I spent a bit of time looking at how this is done,
fwiw (not much) and assuming it compiles:

Acked-by: Daniel Vetter <daniel.vetter-/w4YWyX8dFk@public.gmane.org>

> ---
>  drivers/gpu/drm/tegra/dpaux.c | 2 --
>  drivers/gpu/drm/tegra/drm.h   | 2 +-
>  drivers/gpu/drm/tegra/hdmi.c  | 1 -
>  drivers/gpu/drm/tegra/sor.c   | 1 -
>  4 files changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/tegra/dpaux.c b/drivers/gpu/drm/tegra/dpaux.c
> index 7dfb50f65067..105fb9cdbb3b 100644
> --- a/drivers/gpu/drm/tegra/dpaux.c
> +++ b/drivers/gpu/drm/tegra/dpaux.c
> @@ -5,12 +5,10 @@
>  
>  #include <linux/clk.h>
>  #include <linux/delay.h>
> -#include <linux/gpio.h>
>  #include <linux/interrupt.h>
>  #include <linux/io.h>
>  #include <linux/module.h>
>  #include <linux/of_device.h>
> -#include <linux/of_gpio.h>
>  #include <linux/pinctrl/pinconf-generic.h>
>  #include <linux/pinctrl/pinctrl.h>
>  #include <linux/pinctrl/pinmux.h>
> diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h
> index ed99b67deb29..bf0512177e8f 100644
> --- a/drivers/gpu/drm/tegra/drm.h
> +++ b/drivers/gpu/drm/tegra/drm.h
> @@ -9,7 +9,7 @@
>  
>  #include <linux/host1x.h>
>  #include <linux/iova.h>
> -#include <linux/of_gpio.h>
> +#include <linux/gpio/consumer.h>
>  
>  #include <drm/drm_atomic.h>
>  #include <drm/drm_edid.h>
> diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
> index 38252c0f068d..94fb0193fa3d 100644
> --- a/drivers/gpu/drm/tegra/hdmi.c
> +++ b/drivers/gpu/drm/tegra/hdmi.c
> @@ -7,7 +7,6 @@
>  #include <linux/clk.h>
>  #include <linux/debugfs.h>
>  #include <linux/delay.h>
> -#include <linux/gpio.h>
>  #include <linux/hdmi.h>
>  #include <linux/math64.h>
>  #include <linux/module.h>
> diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
> index 81226a4953c1..b010826e86da 100644
> --- a/drivers/gpu/drm/tegra/sor.c
> +++ b/drivers/gpu/drm/tegra/sor.c
> @@ -6,7 +6,6 @@
>  #include <linux/clk.h>
>  #include <linux/clk-provider.h>
>  #include <linux/debugfs.h>
> -#include <linux/gpio.h>
>  #include <linux/io.h>
>  #include <linux/module.h>
>  #include <linux/of_device.h>
> -- 
> 2.25.2
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch