Hi,
On Sun, Aug 18, 2024 at 12:53:56PM +0530, Tejas Vipin wrote:
> Changes the mantix-mlaf057we51 panel to use multi style functions for
> improved error handling.
>
> Signed-off-by: Tejas Vipin <tejasvipi...@gmail.com>
> ---
> .../gpu/drm/panel/panel-mantix-mlaf057we51.c | 79 +++++++------------
> 1 file changed, 27 insertions(+), 52 deletions(-)
>
> diff --git a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
> b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
> index ea4a6bf6d35b..4db852ffb0f6 100644
> --- a/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
> +++ b/drivers/gpu/drm/panel/panel-mantix-mlaf057we51.c
> @@ -23,7 +23,7 @@
>
> /* Manufacturer specific Commands send via DSI */
> #define MANTIX_CMD_OTP_STOP_RELOAD_MIPI 0x41
> -#define MANTIX_CMD_INT_CANCEL 0x4C
> +#define MANTIX_CMD_INT_CANCEL 0x4c
> #define MANTIX_CMD_SPI_FINISH 0x90
>
> struct mantix {
> @@ -45,82 +45,57 @@ static inline struct mantix *panel_to_mantix(struct
> drm_panel *panel)
> return container_of(panel, struct mantix, panel);
> }
>
> -static int mantix_init_sequence(struct mantix *ctx)
> +static void mantix_init_sequence(struct mipi_dsi_multi_context *dsi_ctx)
> {
> - struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
> - struct device *dev = ctx->dev;
> -
> /*
> * Init sequence was supplied by the panel vendor.
> */
> - mipi_dsi_generic_write_seq(dsi, MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x5A);
> -
> - mipi_dsi_generic_write_seq(dsi, MANTIX_CMD_INT_CANCEL, 0x03);
> - mipi_dsi_generic_write_seq(dsi, MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x5A,
> 0x03);
> - mipi_dsi_generic_write_seq(dsi, 0x80, 0xA9, 0x00);
> + mipi_dsi_generic_write_seq_multi(dsi_ctx,
> MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x5a);
>
> - mipi_dsi_generic_write_seq(dsi, MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x5A,
> 0x09);
> - mipi_dsi_generic_write_seq(dsi, 0x80, 0x64, 0x00, 0x64, 0x00, 0x00);
> - msleep(20);
> + mipi_dsi_generic_write_seq_multi(dsi_ctx, MANTIX_CMD_INT_CANCEL, 0x03);
> + mipi_dsi_generic_write_seq_multi(dsi_ctx,
> MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x5a, 0x03);
> + mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x80, 0xa9, 0x00);
>
> - mipi_dsi_generic_write_seq(dsi, MANTIX_CMD_SPI_FINISH, 0xA5);
> - mipi_dsi_generic_write_seq(dsi, MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x00,
> 0x2F);
> - msleep(20);
> + mipi_dsi_generic_write_seq_multi(dsi_ctx,
> MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x5a, 0x09);
> + mipi_dsi_generic_write_seq_multi(dsi_ctx, 0x80, 0x64, 0x00, 0x64, 0x00,
> 0x00);
> + mipi_dsi_msleep(dsi_ctx, 20);
>
> - dev_dbg(dev, "Panel init sequence done\n");
> - return 0;
> + mipi_dsi_generic_write_seq_multi(dsi_ctx, MANTIX_CMD_SPI_FINISH, 0xa5);
> + mipi_dsi_generic_write_seq_multi(dsi_ctx,
> MANTIX_CMD_OTP_STOP_RELOAD_MIPI, 0x00, 0x2f);
> + mipi_dsi_msleep(dsi_ctx, 20);
> }
>
> static int mantix_enable(struct drm_panel *panel)
> {
> struct mantix *ctx = panel_to_mantix(panel);
> - struct device *dev = ctx->dev;
> - struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev);
> - int ret;
> + struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
> + struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
>
> - ret = mantix_init_sequence(ctx);
> - if (ret < 0) {
> - dev_err(ctx->dev, "Panel init sequence failed: %d\n", ret);
> - return ret;
> - }
> + mantix_init_sequence(&dsi_ctx);
> + if (!dsi_ctx.accum_err)
> + dev_dbg(ctx->dev, "Panel init sequence done\n");
>
> - ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
> - if (ret < 0) {
> - dev_err(dev, "Failed to exit sleep mode\n");
> - return ret;
> - }
> - msleep(20);
> + mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
> + mipi_dsi_msleep(&dsi_ctx, 20);
>
> - ret = mipi_dsi_dcs_set_display_on(dsi);
> - if (ret)
> - return ret;
> - usleep_range(10000, 12000);
> + mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
> + mipi_dsi_usleep_range(&dsi_ctx, 10000, 12000);
>
> - ret = mipi_dsi_turn_on_peripheral(dsi);
> - if (ret < 0) {
> - dev_err(dev, "Failed to turn on peripheral\n");
> - return ret;
> - }
> + mipi_dsi_turn_on_peripheral_multi(&dsi_ctx);
>
> - return 0;
> + return dsi_ctx.accum_err;
> }
>
> static int mantix_disable(struct drm_panel *panel)
> {
> struct mantix *ctx = panel_to_mantix(panel);
> struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
> - int ret;
> -
> - ret = mipi_dsi_dcs_set_display_off(dsi);
> - if (ret < 0)
> - dev_err(ctx->dev, "Failed to turn off the display: %d\n", ret);
> + struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
>
> - ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
> - if (ret < 0)
> - dev_err(ctx->dev, "Failed to enter sleep mode: %d\n", ret);
> + mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
> + mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
>
> -
> - return 0;
> + return dsi_ctx.accum_err;
> }
>
> static int mantix_unprepare(struct drm_panel *panel)
Reviewed-by: Guido Günther <a...@sigxcpu.org>
The split out of cleanups as suggested by Neil would be nice though)
Cheers,
-- Guido
> --
> 2.46.0
>
