diff options
Diffstat (limited to 'drivers/gpu/drm/sti/sti_hda.c')
| -rw-r--r-- | drivers/gpu/drm/sti/sti_hda.c | 52 |
1 files changed, 22 insertions, 30 deletions
diff --git a/drivers/gpu/drm/sti/sti_hda.c b/drivers/gpu/drm/sti/sti_hda.c index b12863bea955..2c015f563de9 100644 --- a/drivers/gpu/drm/sti/sti_hda.c +++ b/drivers/gpu/drm/sti/sti_hda.c @@ -246,6 +246,7 @@ struct sti_hda { struct device dev; struct drm_device *drm_dev; struct drm_display_mode mode; + struct drm_bridge bridge; void __iomem *regs; void __iomem *video_dacs_ctrl; struct clk *clk_pix; @@ -262,6 +263,11 @@ struct sti_hda_connector { #define to_sti_hda_connector(x) \ container_of(x, struct sti_hda_connector, drm_connector) +static struct sti_hda *drm_bridge_to_sti_hda(struct drm_bridge *bridge) +{ + return container_of(bridge, struct sti_hda, bridge); +} + static u32 hda_read(struct sti_hda *hda, int offset) { return readl(hda->regs + offset); @@ -280,12 +286,12 @@ static void hda_write(struct sti_hda *hda, u32 val, int offset) * * Return true if mode is found */ -static bool hda_get_mode_idx(struct drm_display_mode mode, int *idx) +static bool hda_get_mode_idx(const struct drm_display_mode *mode, int *idx) { unsigned int i; for (i = 0; i < ARRAY_SIZE(hda_supported_modes); i++) - if (drm_mode_equal(&hda_supported_modes[i].mode, &mode)) { + if (drm_mode_equal(&hda_supported_modes[i].mode, mode)) { *idx = i; return true; } @@ -401,7 +407,7 @@ static void sti_hda_configure_awg(struct sti_hda *hda, u32 *awg_instr, int nb) static void sti_hda_disable(struct drm_bridge *bridge) { - struct sti_hda *hda = bridge->driver_private; + struct sti_hda *hda = drm_bridge_to_sti_hda(bridge); u32 val; if (!hda->enabled) @@ -426,7 +432,7 @@ static void sti_hda_disable(struct drm_bridge *bridge) static void sti_hda_pre_enable(struct drm_bridge *bridge) { - struct sti_hda *hda = bridge->driver_private; + struct sti_hda *hda = drm_bridge_to_sti_hda(bridge); u32 val, i, mode_idx; u32 src_filter_y, src_filter_c; u32 *coef_y, *coef_c; @@ -443,7 +449,7 @@ static void sti_hda_pre_enable(struct drm_bridge *bridge) if (clk_prepare_enable(hda->clk_hddac)) DRM_ERROR("Failed to prepare/enable hda_hddac clk\n"); - if (!hda_get_mode_idx(hda->mode, &mode_idx)) { + if (!hda_get_mode_idx(&hda->mode, &mode_idx)) { DRM_ERROR("Undefined mode\n"); return; } @@ -517,7 +523,7 @@ static void sti_hda_set_mode(struct drm_bridge *bridge, const struct drm_display_mode *mode, const struct drm_display_mode *adjusted_mode) { - struct sti_hda *hda = bridge->driver_private; + struct sti_hda *hda = drm_bridge_to_sti_hda(bridge); u32 mode_idx; int hddac_rate; int ret; @@ -526,7 +532,7 @@ static void sti_hda_set_mode(struct drm_bridge *bridge, drm_mode_copy(&hda->mode, mode); - if (!hda_get_mode_idx(hda->mode, &mode_idx)) { + if (!hda_get_mode_idx(&hda->mode, &mode_idx)) { DRM_ERROR("Undefined mode\n"); return; } @@ -603,7 +609,7 @@ static int sti_hda_connector_get_modes(struct drm_connector *connector) static enum drm_mode_status sti_hda_connector_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) + const struct drm_display_mode *mode) { int target = mode->clock * 1000; int target_min = target - CLK_TOLERANCE_HZ; @@ -614,7 +620,7 @@ sti_hda_connector_mode_valid(struct drm_connector *connector, = to_sti_hda_connector(connector); struct sti_hda *hda = hda_connector->hda; - if (!hda_get_mode_idx(*mode, &idx)) { + if (!hda_get_mode_idx(mode, &idx)) { return MODE_BAD; } else { result = clk_round_rate(hda->clk_pix, target); @@ -677,7 +683,6 @@ static int sti_hda_bind(struct device *dev, struct device *master, void *data) struct drm_encoder *encoder; struct sti_hda_connector *connector; struct drm_connector *drm_connector; - struct drm_bridge *bridge; int err; /* Set the drm device handle */ @@ -693,13 +698,7 @@ static int sti_hda_bind(struct device *dev, struct device *master, void *data) connector->hda = hda; - bridge = devm_kzalloc(dev, sizeof(*bridge), GFP_KERNEL); - if (!bridge) - return -ENOMEM; - - bridge->driver_private = hda; - bridge->funcs = &sti_hda_bridge_funcs; - drm_bridge_attach(encoder, bridge, NULL, 0); + drm_bridge_attach(encoder, &hda->bridge, NULL, 0); connector->encoder = encoder; @@ -745,21 +744,14 @@ static int sti_hda_probe(struct platform_device *pdev) DRM_INFO("%s\n", __func__); - hda = devm_kzalloc(dev, sizeof(*hda), GFP_KERNEL); - if (!hda) - return -ENOMEM; + hda = devm_drm_bridge_alloc(dev, struct sti_hda, bridge, &sti_hda_bridge_funcs); + if (IS_ERR(hda)) + return PTR_ERR(hda); hda->dev = pdev->dev; - - /* Get resources */ - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hda-reg"); - if (!res) { - DRM_ERROR("Invalid hda resource\n"); - return -ENOMEM; - } - hda->regs = devm_ioremap(dev, res->start, resource_size(res)); - if (!hda->regs) - return -ENOMEM; + hda->regs = devm_platform_ioremap_resource_byname(pdev, "hda-reg"); + if (IS_ERR(hda->regs)) + return PTR_ERR(hda->regs); res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "video-dacs-ctrl"); |