drm/gma500/cdv: Cedarview display cleanups (e85cbbf9) · Commits · EulixOS / Software / Kernel

drivers/gpu/drm/gma500/cdv_intel_display.c

+19 −52

Original line number	Diff line number	Diff line
		@@ -412,8 +412,11 @@ static bool cdv_intel_find_dp_pll(const struct gma_limit_t *limit,
		int refclk,
		struct gma_clock_t *best_clock)
		{
		struct gma_crtc *gma_crtc = to_gma_crtc(crtc);
		struct gma_clock_t clock;
		if (refclk == 27000) {

		switch (refclk) {
		case 27000:
		if (target < 200000) {
		clock.p1 = 2;
		clock.p2 = 10;
		@@ -427,7 +430,9 @@ static bool cdv_intel_find_dp_pll(const struct gma_limit_t *limit,
		clock.m1 = 0;
		clock.m2 = 98;
		}
		} else if (refclk == 100000) {
		break;

		case 100000:
		if (target < 200000) {
		clock.p1 = 2;
		clock.p2 = 10;
		@@ -441,12 +446,13 @@ static bool cdv_intel_find_dp_pll(const struct gma_limit_t *limit,
		clock.m1 = 0;
		clock.m2 = 133;
		}
		} else
		break;

		default:
		return false;
		clock.m = clock.m2 + 2;
		clock.p = clock.p1 * clock.p2;
		clock.vco = (refclk * clock.m) / clock.n;
		clock.dot = clock.vco / clock.p;
		}

		gma_crtc->clock_funcs->clock(refclk, &clock);
		memcpy(best_clock, &clock, sizeof(struct gma_clock_t));
		return true;
		}
		@@ -468,49 +474,6 @@ static bool cdv_intel_pipe_enabled(struct drm_device *dev, int pipe)
		return true;
		}

		static bool cdv_intel_single_pipe_active (struct drm_device *dev)
		{
		uint32_t pipe_enabled = 0;

		if (cdv_intel_pipe_enabled(dev, 0))
		pipe_enabled \|= FIFO_PIPEA;

		if (cdv_intel_pipe_enabled(dev, 1))
		pipe_enabled \|= FIFO_PIPEB;


		DRM_DEBUG_KMS("pipe enabled %x\n", pipe_enabled);

		if (pipe_enabled == FIFO_PIPEA \|\| pipe_enabled == FIFO_PIPEB)
		return true;
		else
		return false;
		}

		static bool is_pipeb_lvds(struct drm_device dev, struct drm_crtc crtc)
		{
		struct gma_crtc *gma_crtc = to_gma_crtc(crtc);
		struct drm_mode_config *mode_config = &dev->mode_config;
		struct drm_connector *connector;

		if (gma_crtc->pipe != 1)
		return false;

		list_for_each_entry(connector, &mode_config->connector_list, head) {
		struct gma_encoder *gma_encoder =
		gma_attached_encoder(connector);

		if (!connector->encoder
		\|\| connector->encoder->crtc != crtc)
		continue;

		if (gma_encoder->type == INTEL_OUTPUT_LVDS)
		return true;
		}

		return false;
		}

		void cdv_disable_sr(struct drm_device *dev)
		{
		if (REG_READ(FW_BLC_SELF) & FW_BLC_SELF_EN) {
		@@ -535,8 +498,10 @@ void cdv_disable_sr(struct drm_device *dev)
		void cdv_update_wm(struct drm_device dev, struct drm_crtc crtc)
		{
		struct drm_psb_private *dev_priv = dev->dev_private;
		struct gma_crtc *gma_crtc = to_gma_crtc(crtc);

		if (cdv_intel_single_pipe_active(dev)) {
		/* Is only one pipe enabled? */
		if (cdv_intel_pipe_enabled(dev, 0) ^ cdv_intel_pipe_enabled(dev, 1)) {
		u32 fw;

		fw = REG_READ(DSPFW1);
		@@ -557,7 +522,9 @@ void cdv_update_wm(struct drm_device dev, struct drm_crtc crtc)

		/* ignore FW4 */

		if (is_pipeb_lvds(dev, crtc)) {
		/* Is pipe b lvds ? */
		if (gma_crtc->pipe == 1 &&
		gma_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
		REG_WRITE(DSPFW5, 0x00040330);
		} else {
		fw = (3 << DSP_PLANE_B_FIFO_WM1_SHIFT) \|