diff options
Diffstat (limited to 'drivers/gpu/drm/omapdrm/dss/venc.c')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/dss/venc.c | 86 |
1 files changed, 66 insertions, 20 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/venc.c b/drivers/gpu/drm/omapdrm/dss/venc.c index a6bfb3918b8d..d58da6f32693 100644 --- a/drivers/gpu/drm/omapdrm/dss/venc.c +++ b/drivers/gpu/drm/omapdrm/dss/venc.c @@ -37,10 +37,10 @@ #include <linux/of.h> #include <linux/of_graph.h> #include <linux/component.h> +#include <linux/sys_soc.h> #include "omapdss.h" #include "dss.h" -#include "dss_features.h" /* Venc registers */ #define VENC_REV_ID 0x00 @@ -263,7 +263,13 @@ static const struct venc_config venc_config_pal_bdghi = { .fid_ext_start_y__fid_ext_offset_y = 0x01380005, }; -const struct videomode omap_dss_pal_vm = { +enum venc_videomode { + VENC_MODE_UNKNOWN, + VENC_MODE_PAL, + VENC_MODE_NTSC, +}; + +static const struct videomode omap_dss_pal_vm = { .hactive = 720, .vactive = 574, .pixelclock = 13500000, @@ -279,9 +285,8 @@ const struct videomode omap_dss_pal_vm = { DISPLAY_FLAGS_PIXDATA_POSEDGE | DISPLAY_FLAGS_SYNC_NEGEDGE, }; -EXPORT_SYMBOL(omap_dss_pal_vm); -const struct videomode omap_dss_ntsc_vm = { +static const struct videomode omap_dss_ntsc_vm = { .hactive = 720, .vactive = 482, .pixelclock = 13500000, @@ -297,7 +302,24 @@ const struct videomode omap_dss_ntsc_vm = { DISPLAY_FLAGS_PIXDATA_POSEDGE | DISPLAY_FLAGS_SYNC_NEGEDGE, }; -EXPORT_SYMBOL(omap_dss_ntsc_vm); + +static enum venc_videomode venc_get_videomode(const struct videomode *vm) +{ + if (!(vm->flags & DISPLAY_FLAGS_INTERLACED)) + return VENC_MODE_UNKNOWN; + + if (vm->pixelclock == omap_dss_pal_vm.pixelclock && + vm->hactive == omap_dss_pal_vm.hactive && + vm->vactive == omap_dss_pal_vm.vactive) + return VENC_MODE_PAL; + + if (vm->pixelclock == omap_dss_ntsc_vm.pixelclock && + vm->hactive == omap_dss_ntsc_vm.hactive && + vm->vactive == omap_dss_ntsc_vm.vactive) + return VENC_MODE_NTSC; + + return VENC_MODE_UNKNOWN; +} static struct { struct platform_device *pdev; @@ -311,6 +333,7 @@ static struct { struct videomode vm; enum omap_dss_venc_type type; bool invert_polarity; + bool requires_tv_dac_clk; struct omap_dss_device output; } venc; @@ -424,14 +447,14 @@ static void venc_runtime_put(void) static const struct venc_config *venc_timings_to_config(struct videomode *vm) { - if (memcmp(&omap_dss_pal_vm, vm, sizeof(*vm)) == 0) + switch (venc_get_videomode(vm)) { + default: + WARN_ON_ONCE(1); + case VENC_MODE_PAL: return &venc_config_pal_trm; - - if (memcmp(&omap_dss_ntsc_vm, vm, sizeof(*vm)) == 0) + case VENC_MODE_NTSC: return &venc_config_ntsc_trm; - - BUG(); - return NULL; + } } static int venc_power_on(struct omap_dss_device *dssdev) @@ -542,15 +565,28 @@ static void venc_display_disable(struct omap_dss_device *dssdev) static void venc_set_timings(struct omap_dss_device *dssdev, struct videomode *vm) { + struct videomode actual_vm; + DSSDBG("venc_set_timings\n"); mutex_lock(&venc.venc_lock); + switch (venc_get_videomode(vm)) { + default: + WARN_ON_ONCE(1); + case VENC_MODE_PAL: + actual_vm = omap_dss_pal_vm; + break; + case VENC_MODE_NTSC: + actual_vm = omap_dss_ntsc_vm; + break; + } + /* Reset WSS data when the TV standard changes. */ - if (memcmp(&venc.vm, vm, sizeof(*vm))) + if (memcmp(&venc.vm, &actual_vm, sizeof(actual_vm))) venc.wss_data = 0; - venc.vm = *vm; + venc.vm = actual_vm; dispc_set_tv_pclk(13500000); @@ -562,13 +598,13 @@ static int venc_check_timings(struct omap_dss_device *dssdev, { DSSDBG("venc_check_timings\n"); - if (memcmp(&omap_dss_pal_vm, vm, sizeof(*vm)) == 0) - return 0; - - if (memcmp(&omap_dss_ntsc_vm, vm, sizeof(*vm)) == 0) + switch (venc_get_videomode(vm)) { + case VENC_MODE_PAL: + case VENC_MODE_NTSC: return 0; - - return -EINVAL; + default: + return -EINVAL; + } } static void venc_get_timings(struct omap_dss_device *dssdev, @@ -693,7 +729,7 @@ static int venc_get_clocks(struct platform_device *pdev) { struct clk *clk; - if (dss_has_feature(FEAT_VENC_REQUIRES_TV_DAC_CLK)) { + if (venc.requires_tv_dac_clk) { clk = devm_clk_get(&pdev->dev, "tv_dac_clk"); if (IS_ERR(clk)) { DSSERR("can't get tv_dac_clk\n"); @@ -828,6 +864,12 @@ err: } /* VENC HW IP initialisation */ +static const struct soc_device_attribute venc_soc_devices[] = { + { .machine = "OMAP3[45]*" }, + { .machine = "AM35*" }, + { /* sentinel */ } +}; + static int venc_bind(struct device *dev, struct device *master, void *data) { struct platform_device *pdev = to_platform_device(dev); @@ -837,6 +879,10 @@ static int venc_bind(struct device *dev, struct device *master, void *data) venc.pdev = pdev; + /* The OMAP34xx, OMAP35xx and AM35xx VENC require the TV DAC clock. */ + if (soc_device_match(venc_soc_devices)) + venc.requires_tv_dac_clk = true; + mutex_init(&venc.venc_lock); venc.wss_data = 0; |