On 1/5/26 21:24, Sebastian Krzyszkowiak via B4 Relay wrote:
> From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
>
> According to the sequence from section 7.3.4 of FT8006P datasheet,
> TP_RSTN and RESX should be asserted after disabling AVDD and AVEE and
> together with VDDI.
>
> Also, AVEE power down needs to happen at least 150ms after entering
> sleep mode.
>
> Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
> ---
> drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c | 12 ++++++++----
> 1 file changed, 8 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
> index bb5489e4d7a9..0e66ee7a727d 100644
> --- a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
> +++ b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
> @@ -96,6 +96,9 @@ static int mantix_disable(struct drm_panel *panel)
> mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
> mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
>
> + /* T10 */
> + mipi_dsi_msleep(&dsi_ctx, 150);
> +
> return dsi_ctx.accum_err;
> }
>
> @@ -103,15 +106,16 @@ static int mantix_unprepare(struct drm_panel *panel)
> {
> struct mantix *ctx = panel_to_mantix(panel);
>
> - gpiod_set_value_cansleep(ctx->tp_rstn_gpio, 1);
> - usleep_range(5000, 6000);
> - gpiod_set_value_cansleep(ctx->reset_gpio, 1);
> -
> regulator_disable(ctx->avee);
> regulator_disable(ctx->avdd);
> /* T11 */
> usleep_range(5000, 6000);
> regulator_disable(ctx->vddi);
> +
> + gpiod_set_value_cansleep(ctx->tp_rstn_gpio, 1);
> + usleep_range(5000, 6000);
> + gpiod_set_value_cansleep(ctx->reset_gpio, 1);
> +
> /* T14 */
> msleep(50);
>
>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Thanks,
Neil