[PATCH v2 22/28] video: fbdev: omapfb: Fix set but not used warnings in dsi
Thomas Zimmermann
tzimmermann at suse.de
Tue Dec 1 10:03:42 UTC 2020
Am 28.11.20 um 23:41 schrieb Sam Ravnborg:
> Fix several W=1 warnings.
> This removes unused code and avoids an assignment by moving
> the use inside the conditional block.
>
> The register read FLD_GET(r, 15, 8) could be dropped as it was done a
> few lines before too.
>
> v2:
> - Updated subject (Lee)
>
> Signed-off-by: Sam Ravnborg <sam at ravnborg.org>
> Cc: Aditya Pakki <pakki001 at umn.edu>
> Cc: Sam Ravnborg <sam at ravnborg.org>
> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie at samsung.com>
> Cc: Lee Jones <lee.jones at linaro.org>
Acked-by: Thomas Zimmermann <tzimmermann at suse.de>
> ---
> drivers/video/fbdev/omap2/omapfb/dss/dsi.c | 12 +++---------
> 1 file changed, 3 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c
> index 6f9c25fec994..72d45a02c3ac 100644
> --- a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c
> +++ b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c
> @@ -1178,13 +1178,12 @@ static int dsi_regulator_init(struct platform_device *dsidev)
>
> static void _dsi_print_reset_status(struct platform_device *dsidev)
> {
> - u32 l;
> int b0, b1, b2;
>
> /* A dummy read using the SCP interface to any DSIPHY register is
> * required after DSIPHY reset to complete the reset of the DSI complex
> * I/O. */
> - l = dsi_read_reg(dsidev, DSI_DSIPHY_CFG5);
> + dsi_read_reg(dsidev, DSI_DSIPHY_CFG5);
>
> if (dss_has_feature(FEAT_DSI_REVERSE_TXCLKESC)) {
> b0 = 28;
> @@ -3627,7 +3626,7 @@ static int dsi_proto_config(struct platform_device *dsidev)
> static void dsi_proto_timings(struct platform_device *dsidev)
> {
> struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
> - unsigned tlpx, tclk_zero, tclk_prepare, tclk_trail;
> + unsigned tlpx, tclk_zero, tclk_prepare;
> unsigned tclk_pre, tclk_post;
> unsigned ths_prepare, ths_prepare_ths_zero, ths_zero;
> unsigned ths_trail, ths_exit;
> @@ -3646,7 +3645,6 @@ static void dsi_proto_timings(struct platform_device *dsidev)
>
> r = dsi_read_reg(dsidev, DSI_DSIPHY_CFG1);
> tlpx = FLD_GET(r, 20, 16) * 2;
> - tclk_trail = FLD_GET(r, 15, 8);
> tclk_zero = FLD_GET(r, 7, 0);
>
> r = dsi_read_reg(dsidev, DSI_DSIPHY_CFG2);
> @@ -4040,7 +4038,6 @@ static int dsi_update(struct omap_dss_device *dssdev, int channel,
> {
> struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev);
> struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
> - u16 dw, dh;
>
> dsi_perf_mark_setup(dsidev);
>
> @@ -4049,11 +4046,8 @@ static int dsi_update(struct omap_dss_device *dssdev, int channel,
> dsi->framedone_callback = callback;
> dsi->framedone_data = data;
>
> - dw = dsi->timings.x_res;
> - dh = dsi->timings.y_res;
> -
> #ifdef DSI_PERF_MEASURE
> - dsi->update_bytes = dw * dh *
> + dsi->update_bytes = dsi->timings.x_res * dsi->timings.y_res *
> dsi_get_pixel_size(dsi->pix_fmt) / 8;
> #endif
> dsi_update_screen_dispc(dsidev);
>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer
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