diff options
Diffstat (limited to 'drivers/video/omap2/dss/venc.c')
| -rw-r--r-- | drivers/video/omap2/dss/venc.c | 66 |
1 files changed, 65 insertions, 1 deletions
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c index 59ade34bd536..21d81113962b 100644 --- a/drivers/video/omap2/dss/venc.c +++ b/drivers/video/omap2/dss/venc.c @@ -34,6 +34,7 @@ #include <linux/platform_device.h> #include <linux/regulator/consumer.h> #include <linux/pm_runtime.h> +#include <linux/of.h> #include <video/omapdss.h> @@ -636,7 +637,10 @@ static int venc_init_regulator(void) if (venc.vdda_dac_reg != NULL) return 0; - vdda_dac = devm_regulator_get(&venc.pdev->dev, "vdda_dac"); + if (venc.pdev->dev.of_node) + vdda_dac = devm_regulator_get(&venc.pdev->dev, "vdda"); + else + vdda_dac = devm_regulator_get(&venc.pdev->dev, "vdda_dac"); if (IS_ERR(vdda_dac)) { if (PTR_ERR(vdda_dac) != -EPROBE_DEFER) @@ -805,6 +809,48 @@ static void __exit venc_uninit_output(struct platform_device *pdev) omapdss_unregister_output(out); } +static int venc_probe_of(struct platform_device *pdev) +{ + struct device_node *node = pdev->dev.of_node; + struct device_node *ep; + u32 channels; + int r; + + ep = omapdss_of_get_first_endpoint(node); + if (!ep) + return 0; + + venc.invert_polarity = of_property_read_bool(ep, "ti,invert-polarity"); + + r = of_property_read_u32(ep, "ti,channels", &channels); + if (r) { + dev_err(&pdev->dev, + "failed to read property 'ti,channels': %d\n", r); + goto err; + } + + switch (channels) { + case 1: + venc.type = OMAP_DSS_VENC_TYPE_COMPOSITE; + break; + case 2: + venc.type = OMAP_DSS_VENC_TYPE_SVIDEO; + break; + default: + dev_err(&pdev->dev, "bad channel propert '%d'\n", channels); + r = -EINVAL; + goto err; + } + + of_node_put(ep); + + return 0; +err: + of_node_put(ep); + + return 0; +} + /* VENC HW IP initialisation */ static int omap_venchw_probe(struct platform_device *pdev) { @@ -846,12 +892,21 @@ static int omap_venchw_probe(struct platform_device *pdev) venc_runtime_put(); + if (pdev->dev.of_node) { + r = venc_probe_of(pdev); + if (r) { + DSSERR("Invalid DT data\n"); + goto err_probe_of; + } + } + dss_debugfs_create_file("venc", venc_dump_regs); venc_init_output(pdev); return 0; +err_probe_of: err_runtime_get: pm_runtime_disable(&pdev->dev); return r; @@ -895,6 +950,14 @@ static const struct dev_pm_ops venc_pm_ops = { .runtime_resume = venc_runtime_resume, }; + +static const struct of_device_id venc_of_match[] = { + { .compatible = "ti,omap2-venc", }, + { .compatible = "ti,omap3-venc", }, + { .compatible = "ti,omap4-venc", }, + {}, +}; + static struct platform_driver omap_venchw_driver = { .probe = omap_venchw_probe, .remove = __exit_p(omap_venchw_remove), @@ -902,6 +965,7 @@ static struct platform_driver omap_venchw_driver = { .name = "omapdss_venc", .owner = THIS_MODULE, .pm = &venc_pm_ops, + .of_match_table = venc_of_match, }, }; |