[PATCH] drm/mipi-dbi: Make mipi_dbi_command_stackbuf() data parameter const

[Sam Ravnborg]

On Fri, Mar 20, 2020 at 01:35:31PM +0100, Noralf Trønnes wrote:
> 
> 
> Den 20.03.2020 13.28, skrev Sam Ravnborg:
> > Hi Noralf.
> > 
> > On Mon, Mar 16, 2020 at 05:42:49PM +0100, Geert Uytterhoeven wrote:
> >> mipi_dbi_command_stackbuf() copies the passed buffer data, so it can be
> >> const.
> >>
> >> Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>
> > 
> > OK to merge?
> > Looks good to me and build did not break.
> 
> Sure, I planned to look at it this weekend, but if you can apply it, great.
> 
> Reviewed-by: Noralf Trønnes <noralf at tronnes.org>

Applied to drm-misc-next.

	Sam

> 
> Noralf.
> 
> > 
> > 	Sam
> > 
> >> ---
> >>  drivers/gpu/drm/drm_mipi_dbi.c | 3 ++-
> >>  include/drm/drm_mipi_dbi.h     | 5 +++--
> >>  2 files changed, 5 insertions(+), 3 deletions(-)
> >>
> >> diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c
> >> index 558baf989f5a8432..89e911ccea06cf99 100644
> >> --- a/drivers/gpu/drm/drm_mipi_dbi.c
> >> +++ b/drivers/gpu/drm/drm_mipi_dbi.c
> >> @@ -169,7 +169,8 @@ int mipi_dbi_command_buf(struct mipi_dbi *dbi, u8 cmd, u8 *data, size_t len)
> >>  EXPORT_SYMBOL(mipi_dbi_command_buf);
> >>  
> >>  /* This should only be used by mipi_dbi_command() */
> >> -int mipi_dbi_command_stackbuf(struct mipi_dbi *dbi, u8 cmd, u8 *data, size_t len)
> >> +int mipi_dbi_command_stackbuf(struct mipi_dbi *dbi, u8 cmd, const u8 *data,
> >> +			      size_t len)
> >>  {
> >>  	u8 *buf;
> >>  	int ret;
> >> diff --git a/include/drm/drm_mipi_dbi.h b/include/drm/drm_mipi_dbi.h
> >> index 33f325f5af2b921f..9333b9086c30bd3c 100644
> >> --- a/include/drm/drm_mipi_dbi.h
> >> +++ b/include/drm/drm_mipi_dbi.h
> >> @@ -170,7 +170,8 @@ int mipi_dbi_spi_transfer(struct spi_device *spi, u32 speed_hz,
> >>  
> >>  int mipi_dbi_command_read(struct mipi_dbi *dbi, u8 cmd, u8 *val);
> >>  int mipi_dbi_command_buf(struct mipi_dbi *dbi, u8 cmd, u8 *data, size_t len);
> >> -int mipi_dbi_command_stackbuf(struct mipi_dbi *dbi, u8 cmd, u8 *data, size_t len);
> >> +int mipi_dbi_command_stackbuf(struct mipi_dbi *dbi, u8 cmd, const u8 *data,
> >> +			      size_t len);
> >>  int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb,
> >>  		      struct drm_rect *clip, bool swap);
> >>  /**
> >> @@ -187,7 +188,7 @@ int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb,
> >>   */
> >>  #define mipi_dbi_command(dbi, cmd, seq...) \
> >>  ({ \
> >> -	u8 d[] = { seq }; \
> >> +	const u8 d[] = { seq }; \
> >>  	mipi_dbi_command_stackbuf(dbi, cmd, d, ARRAY_SIZE(d)); \
> >>  })
> >>  
> >> -- 
> >> 2.17.1
> >>
> >> _______________________________________________
> >> dri-devel mailing list
> >> dri-devel at lists.freedesktop.org
> >> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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