diff options
Diffstat (limited to 'drivers/video/omap2/dss/dsi.c')
-rw-r--r-- | drivers/video/omap2/dss/dsi.c | 136 |
1 files changed, 13 insertions, 123 deletions
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index 203b18bbdda..41cdefbaf7f 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -3106,18 +3106,7 @@ static int dsi_display_init_dsi(struct omap_dss_device *dssdev) dsi_if_enable(1); dsi_force_tx_stop_mode_io(); - if (dssdev->driver->enable) { - r = dssdev->driver->enable(dssdev); - if (r) - goto err4; - } - - /* enable high-speed after initial config */ - omapdss_dsi_vc_enable_hs(0, 1); - return 0; -err4: - dsi_if_enable(0); err3: dsi_complexio_uninit(); err2: @@ -3131,9 +3120,6 @@ err0: static void dsi_display_uninit_dsi(struct omap_dss_device *dssdev) { - if (dssdev->driver->disable) - dssdev->driver->disable(dssdev); - dss_select_dispc_clk_source(DSS_SRC_DSS1_ALWON_FCLK); dss_select_dsi_clk_source(DSS_SRC_DSS1_ALWON_FCLK); dsi_complexio_uninit(); @@ -3156,14 +3142,15 @@ static int dsi_core_init(void) return 0; } -static int dsi_display_enable(struct omap_dss_device *dssdev) +int omapdss_dsi_display_enable(struct omap_dss_device *dssdev) { int r = 0; DSSDBG("dsi_display_enable\n"); + WARN_ON(!dsi_bus_is_locked()); + mutex_lock(&dsi.lock); - dsi_bus_lock(); r = omap_dss_start_device(dssdev); if (r) { @@ -3171,90 +3158,49 @@ static int dsi_display_enable(struct omap_dss_device *dssdev) goto err0; } - if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) { - DSSERR("dssdev already enabled\n"); - r = -EINVAL; - goto err1; - } - enable_clocks(1); dsi_enable_pll_clock(1); r = _dsi_reset(); if (r) - goto err2; + goto err1; dsi_core_init(); r = dsi_display_init_dispc(dssdev); if (r) - goto err2; + goto err1; r = dsi_display_init_dsi(dssdev); if (r) - goto err3; - - dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; + goto err2; dsi.use_ext_te = dssdev->phy.dsi.ext_te; - dsi_bus_unlock(); mutex_unlock(&dsi.lock); return 0; -err3: - dsi_display_uninit_dispc(dssdev); err2: + dsi_display_uninit_dispc(dssdev); +err1: enable_clocks(0); dsi_enable_pll_clock(0); -err1: omap_dss_stop_device(dssdev); err0: - dsi_bus_unlock(); mutex_unlock(&dsi.lock); DSSDBG("dsi_display_enable FAILED\n"); return r; } +EXPORT_SYMBOL(omapdss_dsi_display_enable); -static void dsi_display_disable(struct omap_dss_device *dssdev) +void omapdss_dsi_display_disable(struct omap_dss_device *dssdev) { DSSDBG("dsi_display_disable\n"); - mutex_lock(&dsi.lock); - dsi_bus_lock(); - - if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED || - dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) - goto end; - - dssdev->state = OMAP_DSS_DISPLAY_DISABLED; - - dsi_display_uninit_dispc(dssdev); - - dsi_display_uninit_dsi(dssdev); - - enable_clocks(0); - dsi_enable_pll_clock(0); - - omap_dss_stop_device(dssdev); -end: - dsi_bus_unlock(); - mutex_unlock(&dsi.lock); -} - -static int dsi_display_suspend(struct omap_dss_device *dssdev) -{ - DSSDBG("dsi_display_suspend\n"); + WARN_ON(!dsi_bus_is_locked()); mutex_lock(&dsi.lock); - dsi_bus_lock(); - - if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED || - dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) - goto end; - - dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED; dsi_display_uninit_dispc(dssdev); @@ -3262,63 +3208,12 @@ static int dsi_display_suspend(struct omap_dss_device *dssdev) enable_clocks(0); dsi_enable_pll_clock(0); -end: - dsi_bus_unlock(); - mutex_unlock(&dsi.lock); - return 0; -} - -static int dsi_display_resume(struct omap_dss_device *dssdev) -{ - int r; - - DSSDBG("dsi_display_resume\n"); - - mutex_lock(&dsi.lock); - dsi_bus_lock(); - - if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) { - DSSERR("dssdev not suspended\n"); - r = -EINVAL; - goto err0; - } - - enable_clocks(1); - dsi_enable_pll_clock(1); - - r = _dsi_reset(); - if (r) - goto err1; - - dsi_core_init(); - - r = dsi_display_init_dispc(dssdev); - if (r) - goto err1; - - r = dsi_display_init_dsi(dssdev); - if (r) - goto err2; - - dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; - - dsi_bus_unlock(); - mutex_unlock(&dsi.lock); - - return 0; + omap_dss_stop_device(dssdev); -err2: - dsi_display_uninit_dispc(dssdev); -err1: - enable_clocks(0); - dsi_enable_pll_clock(0); -err0: - dsi_bus_unlock(); mutex_unlock(&dsi.lock); - DSSDBG("dsi_display_resume FAILED\n"); - return r; } +EXPORT_SYMBOL(omapdss_dsi_display_disable); int omapdss_dsi_enable_te(struct omap_dss_device *dssdev, bool enable) { @@ -3344,11 +3239,6 @@ int dsi_init_display(struct omap_dss_device *dssdev) { DSSDBG("DSI init\n"); - dssdev->enable = dsi_display_enable; - dssdev->disable = dsi_display_disable; - dssdev->suspend = dsi_display_suspend; - dssdev->resume = dsi_display_resume; - /* XXX these should be figured out dynamically */ dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE | OMAP_DSS_DISPLAY_CAP_TEAR_ELIM; |