On our AM3505 based board, dpi.c complains that there is no VDSS_DSI regulator and the framebuffer cannot be enabled. However, this check does not seem to apply to AM3505/17 chips.
Taking into account comments received after my first patch[1], I have added entries to dss_features.c to support the am35xx soc. Then in dpi.c, instead of using cpu_is_omap34xx() and soc_is_am35xx(), a call to dss_has_feature() is used. [1] http://marc.info/?l=linux-fbdev&m=134272967203409&w=2 Signed-off-by: Raphaël Assénat <[email protected]> diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c index 3266be2..0e83054 100644 --- a/drivers/video/omap2/dss/dpi.c +++ b/drivers/video/omap2/dss/dpi.c @@ -31,9 +31,9 @@ #include <linux/regulator/consumer.h> #include <video/omapdss.h> -#include <plat/cpu.h> #include "dss.h" +#include "dss_features.h" static struct { struct regulator *vdds_dsi_reg; @@ -169,11 +169,6 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev) { int r; - if (cpu_is_omap34xx() && !dpi.vdds_dsi_reg) { - DSSERR("no VDSS_DSI regulator\n"); - return -ENODEV; - } - if (dssdev->manager == NULL) { DSSERR("failed to enable display: no manager\n"); return -ENODEV; @@ -185,7 +180,7 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev) goto err_start_dev; } - if (cpu_is_omap34xx()) { + if (dpi.vdds_dsi_reg) { r = regulator_enable(dpi.vdds_dsi_reg); if (r) goto err_reg_enable; @@ -229,7 +224,7 @@ err_dsi_pll_init: err_get_dsi: dispc_runtime_put(); err_get_dispc: - if (cpu_is_omap34xx()) + if (dpi.vdds_dsi_reg) regulator_disable(dpi.vdds_dsi_reg); err_reg_enable: omap_dss_stop_device(dssdev); @@ -250,7 +245,7 @@ void omapdss_dpi_display_disable(struct omap_dss_device *dssdev) dispc_runtime_put(); - if (cpu_is_omap34xx()) + if (dpi.vdds_dsi_reg) regulator_disable(dpi.vdds_dsi_reg); omap_dss_stop_device(dssdev); @@ -329,7 +324,7 @@ static int __init dpi_init_display(struct omap_dss_device *dssdev) { DSSDBG("init_display\n"); - if (cpu_is_omap34xx() && dpi.vdds_dsi_reg == NULL) { + if (dss_has_feature(FEAT_VDDS_DSI) && dpi.vdds_dsi_reg == NULL) { struct regulator *vdds_dsi; vdds_dsi = dss_get_vdds_dsi(); diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c index 9387097..6d4b6c5 100644 --- a/drivers/video/omap2/dss/dss_features.c +++ b/drivers/video/omap2/dss/dss_features.c @@ -373,6 +373,26 @@ static const enum dss_feat_id omap3430_dss_feat_list[] = { FEAT_ALPHA_FIXED_ZORDER, FEAT_FIFO_MERGE, FEAT_OMAP3_DSI_FIFO_BUG, + FEAT_VDDS_DSI, +}; + +static const enum dss_feat_id am35xx_dss_feat_list[] = { + FEAT_LCDENABLEPOL, + FEAT_LCDENABLESIGNAL, + FEAT_PCKFREEENABLE, + FEAT_FUNCGATED, + FEAT_LINEBUFFERSPLIT, + FEAT_ROWREPEATENABLE, + FEAT_RESIZECONF, + FEAT_DSI_PLL_FREQSEL, + FEAT_DSI_REVERSE_TXCLKESC, + FEAT_VENC_REQUIRES_TV_DAC_CLK, + FEAT_CPR, + FEAT_PRELOAD, + FEAT_FIR_COEF_V, + FEAT_ALPHA_FIXED_ZORDER, + FEAT_FIFO_MERGE, + FEAT_OMAP3_DSI_FIFO_BUG, }; static const enum dss_feat_id omap3630_dss_feat_list[] = { @@ -487,6 +507,27 @@ static const struct omap_dss_features omap3430_dss_features = { .burst_size_unit = 8, }; +/* AM35xx DSS Features. This is basically OMAP3 DSS Features without + the vdds_dsi regulator. */ +static const struct omap_dss_features am35xx_dss_features = { + .reg_fields = omap3_dss_reg_fields, + .num_reg_fields = ARRAY_SIZE(omap3_dss_reg_fields), + + .features = am35xx_dss_feat_list, + .num_features = ARRAY_SIZE(am35xx_dss_feat_list), + + .num_mgrs = 2, + .num_ovls = 3, + .supported_displays = omap3430_dss_supported_displays, + .supported_color_modes = omap3_dss_supported_color_modes, + .overlay_caps = omap3430_dss_overlay_caps, + .clksrc_names = omap3_dss_clk_source_names, + .dss_params = omap3_dss_param_range, + .supported_rotation_types = OMAP_DSS_ROT_DMA | OMAP_DSS_ROT_VRFB, + .buffer_size_unit = 1, + .burst_size_unit = 8, +}; + static const struct omap_dss_features omap3630_dss_features = { .reg_fields = omap3_dss_reg_fields, .num_reg_fields = ARRAY_SIZE(omap3_dss_reg_fields), @@ -694,8 +735,12 @@ void dss_features_init(void) omap_current_dss_features = &omap2_dss_features; else if (cpu_is_omap3630()) omap_current_dss_features = &omap3630_dss_features; - else if (cpu_is_omap34xx()) - omap_current_dss_features = &omap3430_dss_features; + else if (cpu_is_omap34xx()) { + if (soc_is_am35xx()) + omap_current_dss_features = &am35xx_dss_features; + else + omap_current_dss_features = &omap3430_dss_features; + } else if (omap_rev() == OMAP4430_REV_ES1_0) omap_current_dss_features = &omap4430_es1_0_dss_features; else if (omap_rev() == OMAP4430_REV_ES2_0 || diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h index 996ffcb..8a68ebf 100644 --- a/drivers/video/omap2/dss/dss_features.h +++ b/drivers/video/omap2/dss/dss_features.h @@ -64,6 +64,7 @@ enum dss_feat_id { /* An unknown HW bug causing the normal FIFO thresholds not to work */ FEAT_OMAP3_DSI_FIFO_BUG, FEAT_BURST_2D, + FEAT_VDDS_DSI, }; /* DSS register field id */ -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
