diff options
Diffstat (limited to 'drivers/gpu/drm/tidss/tidss_dispc.c')
| -rw-r--r-- | drivers/gpu/drm/tidss/tidss_dispc.c | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/drivers/gpu/drm/tidss/tidss_dispc.c b/drivers/gpu/drm/tidss/tidss_dispc.c index c3ece2c9d1c8..b669168ae7cb 100644 --- a/drivers/gpu/drm/tidss/tidss_dispc.c +++ b/drivers/gpu/drm/tidss/tidss_dispc.c @@ -19,6 +19,7 @@ #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> +#include <linux/sys_soc.h> #include <drm/drm_fourcc.h> #include <drm/drm_fb_cma_helper.h> @@ -302,6 +303,8 @@ struct dispc_device { u32 num_fourccs; u32 memory_bandwidth_limit; + + struct dispc_errata errata; }; static void dispc_write(struct dispc_device *dispc, u16 reg, u32 val) @@ -2641,6 +2644,19 @@ static int dispc_init_am65x_oldi_io_ctrl(struct device *dev, return 0; } +static void dispc_init_errata(struct dispc_device *dispc) +{ + static const struct soc_device_attribute am65x_sr10_soc_devices[] = { + { .family = "AM65X", .revision = "SR1.0" }, + { /* sentinel */ } + }; + + if (soc_device_match(am65x_sr10_soc_devices)) { + dispc->errata.i2000 = true; + dev_info(dispc->dev, "WA for erratum i2000: YUV formats disabled\n"); + } +} + int dispc_init(struct tidss_device *tidss) { struct device *dev = tidss->dev; @@ -2664,19 +2680,27 @@ int dispc_init(struct tidss_device *tidss) if (!dispc) return -ENOMEM; + dispc->tidss = tidss; + dispc->dev = dev; + dispc->feat = feat; + + dispc_init_errata(dispc); + dispc->fourccs = devm_kcalloc(dev, ARRAY_SIZE(dispc_color_formats), sizeof(*dispc->fourccs), GFP_KERNEL); if (!dispc->fourccs) return -ENOMEM; num_fourccs = 0; - for (i = 0; i < ARRAY_SIZE(dispc_color_formats); ++i) + for (i = 0; i < ARRAY_SIZE(dispc_color_formats); ++i) { + if (dispc->errata.i2000 && + dispc_fourcc_is_yuv(dispc_color_formats[i].fourcc)) { + continue; + } dispc->fourccs[num_fourccs++] = dispc_color_formats[i].fourcc; + } dispc->num_fourccs = num_fourccs; - dispc->tidss = tidss; - dispc->dev = dev; - dispc->feat = feat; dispc_common_regmap = dispc->feat->common_regs; |