linux-kernel - Re: [PATCH] drm/kmb: remove unused set_test_mode_src_osc_freq_target_low,hi

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Date:   Fri, 7 Apr 2023 10:36:30 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Tom Rix <trix@...hat.com>
Cc:     anitha.chrisanthus@...el.com, edmund.j.dea@...el.com,
        airlied@...il.com, daniel@...ll.ch, nathan@...nel.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev
Subject: Re: [PATCH] drm/kmb: remove unused set_test_mode_src_osc_freq_target_low,hi_bits
 functions

On Sat, Mar 18, 2023 at 6:39 AM Tom Rix <trix@...hat.com> wrote:
>
> clang with W=1 reports
> drivers/gpu/drm/kmb/kmb_dsi.c:822:2: error: unused function
>   'set_test_mode_src_osc_freq_target_low_bits' [-Werror,-Wunused-function]
>         set_test_mode_src_osc_freq_target_low_bits(struct kmb_dsi *kmb_dsi,
>         ^
> drivers/gpu/drm/kmb/kmb_dsi.c:834:2: error: unused function
>   'set_test_mode_src_osc_freq_target_hi_bits' [-Werror,-Wunused-function]
>         set_test_mode_src_osc_freq_target_hi_bits(struct kmb_dsi *kmb_dsi,
>         ^
> These static functions are not used, so remove them.
>
> Signed-off-by: Tom Rix <trix@...hat.com>

Thanks for the patch!
Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>

> ---
>  drivers/gpu/drm/kmb/kmb_dsi.c | 28 ----------------------------
>  1 file changed, 28 deletions(-)
>
> diff --git a/drivers/gpu/drm/kmb/kmb_dsi.c b/drivers/gpu/drm/kmb/kmb_dsi.c
> index cf7cf0b07541..ed99b14375aa 100644
> --- a/drivers/gpu/drm/kmb/kmb_dsi.c
> +++ b/drivers/gpu/drm/kmb/kmb_dsi.c
> @@ -818,34 +818,6 @@ static void test_mode_send(struct kmb_dsi *kmb_dsi, u32 dphy_no,
>         }
>  }
>
> -static inline void
> -       set_test_mode_src_osc_freq_target_low_bits(struct kmb_dsi *kmb_dsi,
> -                                                  u32 dphy_no,
> -                                                  u32 freq)
> -{
> -       /* Typical rise/fall time=166, refer Table 1207 databook,
> -        * sr_osc_freq_target[7:0]
> -        */
> -       test_mode_send(kmb_dsi, dphy_no, TEST_CODE_SLEW_RATE_DDL_CYCLES,
> -                      (freq & 0x7f));
> -}
> -
> -static inline void
> -       set_test_mode_src_osc_freq_target_hi_bits(struct kmb_dsi *kmb_dsi,
> -                                                 u32 dphy_no,
> -                                                 u32 freq)
> -{
> -       u32 data;
> -
> -       /* Flag this as high nibble */
> -       data = ((freq >> 6) & 0x1f) | (1 << 7);
> -
> -       /* Typical rise/fall time=166, refer Table 1207 databook,
> -        * sr_osc_freq_target[11:7]
> -        */
> -       test_mode_send(kmb_dsi, dphy_no, TEST_CODE_SLEW_RATE_DDL_CYCLES, data);
> -}
> -
>  static void mipi_tx_get_vco_params(struct vco_params *vco)
>  {
>         int i;
> --
> 2.27.0
>


-- 
Thanks,
~Nick Desaulniers