diff options
Diffstat (limited to 'drivers/video/omap2/dss/venc.c')
-rw-r--r-- | drivers/video/omap2/dss/venc.c | 163 |
1 files changed, 107 insertions, 56 deletions
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c index 74fdb3ee209..496a106fe82 100644 --- a/drivers/video/omap2/dss/venc.c +++ b/drivers/video/omap2/dss/venc.c @@ -304,7 +304,7 @@ static struct { enum omap_dss_venc_type type; bool invert_polarity; - struct omap_dss_output output; + struct omap_dss_device output; } venc; static inline void venc_write_reg(int idx, u32 val) @@ -429,7 +429,7 @@ static const struct venc_config *venc_timings_to_config( static int venc_power_on(struct omap_dss_device *dssdev) { - struct omap_overlay_manager *mgr = dssdev->output->manager; + struct omap_overlay_manager *mgr = venc.output.manager; u32 l; int r; @@ -480,7 +480,7 @@ err0: static void venc_power_off(struct omap_dss_device *dssdev) { - struct omap_overlay_manager *mgr = dssdev->output->manager; + struct omap_overlay_manager *mgr = venc.output.manager; venc_write_reg(VENC_OUTPUT_CONTROL, 0); dss_set_dac_pwrdn_bgz(0); @@ -492,15 +492,9 @@ static void venc_power_off(struct omap_dss_device *dssdev) venc_runtime_put(); } -unsigned long venc_get_pixel_clock(void) -{ - /* VENC Pixel Clock in Mhz */ - return 13500000; -} - int omapdss_venc_display_enable(struct omap_dss_device *dssdev) { - struct omap_dss_output *out = dssdev->output; + struct omap_dss_device *out = &venc.output; int r; DSSDBG("venc_display_enable\n"); @@ -513,23 +507,15 @@ int omapdss_venc_display_enable(struct omap_dss_device *dssdev) goto err0; } - r = omap_dss_start_device(dssdev); - if (r) { - DSSERR("failed to start device\n"); - goto err0; - } - r = venc_power_on(dssdev); if (r) - goto err1; + goto err0; venc.wss_data = 0; mutex_unlock(&venc.venc_lock); return 0; -err1: - omap_dss_stop_device(dssdev); err0: mutex_unlock(&venc.venc_lock); return r; @@ -543,8 +529,6 @@ void omapdss_venc_display_disable(struct omap_dss_device *dssdev) venc_power_off(dssdev); - omap_dss_stop_device(dssdev); - mutex_unlock(&venc.venc_lock); } @@ -561,6 +545,8 @@ void omapdss_venc_set_timings(struct omap_dss_device *dssdev, venc.timings = *timings; + dispc_set_tv_pclk(13500000); + mutex_unlock(&venc.venc_lock); } @@ -578,6 +564,16 @@ int omapdss_venc_check_timings(struct omap_dss_device *dssdev, return -EINVAL; } +static void venc_get_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + mutex_lock(&venc.venc_lock); + + *timings = venc.timings; + + mutex_unlock(&venc.venc_lock); +} + u32 omapdss_venc_get_wss(struct omap_dss_device *dssdev) { /* Invert due to VENC_L21_WC_CTL:INV=1 */ @@ -633,23 +629,22 @@ void omapdss_venc_invert_vid_out_polarity(struct omap_dss_device *dssdev, mutex_unlock(&venc.venc_lock); } -static int venc_init_display(struct omap_dss_device *dssdev) +static int venc_init_regulator(void) { - DSSDBG("init_display\n"); - - if (venc.vdda_dac_reg == NULL) { - struct regulator *vdda_dac; + struct regulator *vdda_dac; - vdda_dac = regulator_get(&venc.pdev->dev, "vdda_dac"); + if (venc.vdda_dac_reg != NULL) + return 0; - if (IS_ERR(vdda_dac)) { - DSSERR("can't get VDDA_DAC regulator\n"); - return PTR_ERR(vdda_dac); - } + vdda_dac = devm_regulator_get(&venc.pdev->dev, "vdda_dac"); - venc.vdda_dac_reg = vdda_dac; + if (IS_ERR(vdda_dac)) { + DSSERR("can't get VDDA_DAC regulator\n"); + return PTR_ERR(vdda_dac); } + venc.vdda_dac_reg = vdda_dac; + return 0; } @@ -765,19 +760,16 @@ static int venc_probe_pdata(struct platform_device *vencdev) if (!plat_dssdev) return 0; + r = venc_init_regulator(); + if (r) + return r; + dssdev = dss_alloc_and_init_device(&vencdev->dev); if (!dssdev) return -ENOMEM; dss_copy_device_pdata(dssdev, plat_dssdev); - r = venc_init_display(dssdev); - if (r) { - DSSERR("device %s init failed: %d\n", dssdev->name, r); - dss_put_device(dssdev); - return r; - } - r = omapdss_output_set_device(&venc.output, dssdev); if (r) { DSSERR("failed to connect output to new device: %s\n", @@ -797,24 +789,87 @@ static int venc_probe_pdata(struct platform_device *vencdev) return 0; } +static int venc_connect(struct omap_dss_device *dssdev, + struct omap_dss_device *dst) +{ + struct omap_overlay_manager *mgr; + int r; + + r = venc_init_regulator(); + if (r) + return r; + + mgr = omap_dss_get_overlay_manager(dssdev->dispc_channel); + if (!mgr) + return -ENODEV; + + r = dss_mgr_connect(mgr, dssdev); + if (r) + return r; + + r = omapdss_output_set_device(dssdev, dst); + if (r) { + DSSERR("failed to connect output to new device: %s\n", + dst->name); + dss_mgr_disconnect(mgr, dssdev); + return r; + } + + return 0; +} + +static void venc_disconnect(struct omap_dss_device *dssdev, + struct omap_dss_device *dst) +{ + WARN_ON(dst != dssdev->device); + + if (dst != dssdev->device) + return; + + omapdss_output_unset_device(dssdev); + + if (dssdev->manager) + dss_mgr_disconnect(dssdev->manager, dssdev); +} + +static const struct omapdss_atv_ops venc_ops = { + .connect = venc_connect, + .disconnect = venc_disconnect, + + .enable = omapdss_venc_display_enable, + .disable = omapdss_venc_display_disable, + + .check_timings = omapdss_venc_check_timings, + .set_timings = omapdss_venc_set_timings, + .get_timings = venc_get_timings, + + .set_type = omapdss_venc_set_type, + .invert_vid_out_polarity = omapdss_venc_invert_vid_out_polarity, + + .set_wss = omapdss_venc_set_wss, + .get_wss = omapdss_venc_get_wss, +}; + static void venc_init_output(struct platform_device *pdev) { - struct omap_dss_output *out = &venc.output; + struct omap_dss_device *out = &venc.output; - out->pdev = pdev; + out->dev = &pdev->dev; out->id = OMAP_DSS_OUTPUT_VENC; - out->type = OMAP_DISPLAY_TYPE_VENC; + out->output_type = OMAP_DISPLAY_TYPE_VENC; out->name = "venc.0"; out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT; + out->ops.atv = &venc_ops; + out->owner = THIS_MODULE; - dss_register_output(out); + omapdss_register_output(out); } static void __exit venc_uninit_output(struct platform_device *pdev) { - struct omap_dss_output *out = &venc.output; + struct omap_dss_device *out = &venc.output; - dss_unregister_output(out); + omapdss_unregister_output(out); } /* VENC HW IP initialisation */ @@ -866,16 +921,17 @@ static int omap_venchw_probe(struct platform_device *pdev) venc_init_output(pdev); - r = venc_probe_pdata(pdev); - if (r) { - venc_panel_exit(); - venc_uninit_output(pdev); - pm_runtime_disable(&pdev->dev); - return r; + if (pdev->dev.platform_data) { + r = venc_probe_pdata(pdev); + if (r) + goto err_probe; } return 0; +err_probe: + venc_panel_exit(); + venc_uninit_output(pdev); err_panel_init: err_runtime_get: pm_runtime_disable(&pdev->dev); @@ -886,11 +942,6 @@ static int __exit omap_venchw_remove(struct platform_device *pdev) { dss_unregister_child_devices(&pdev->dev); - if (venc.vdda_dac_reg != NULL) { - regulator_put(venc.vdda_dac_reg); - venc.vdda_dac_reg = NULL; - } - venc_panel_exit(); venc_uninit_output(pdev); |