C++ (Cpp) mdss_dsi_link_clk_stop示例

示例#1

文件： msm_mdss_io_8974.c 项目： boa19861105/BOA_Butterfly2_L5.1_kernel

static void mdss_dsi_clk_ctrl_sub(struct mdss_dsi_ctrl_pdata *ctrl, int enable)
{
	int changed = 0;

	if (enable) {
		if (ctrl->clk_cnt_sub == 0)
			changed++;
		ctrl->clk_cnt_sub++;
	} else {
		if (ctrl->clk_cnt_sub) {
			ctrl->clk_cnt_sub--;
			if (ctrl->clk_cnt_sub == 0)
				changed++;
		} else {
			pr_debug("%s: Can not be turned off\n", __func__);
		}
	}

	pr_debug("%s: ndx=%d clk_cnt_sub=%d changed=%d enable=%d\n",
		__func__, ctrl->ndx, ctrl->clk_cnt_sub, changed, enable);
	if (changed) {
		if (enable) {
			if (mdss_dsi_bus_clk_start(ctrl) == 0)
				mdss_dsi_link_clk_start(ctrl);
		} else {
			mdss_dsi_link_clk_stop(ctrl);
			mdss_dsi_bus_clk_stop(ctrl);
		}
	}
}

示例#2

文件： msm_mdss_io_8974.c 项目： GalaxyTab4/android_kernel_samsung_matissewifi.bak

static int mdss_dsi_clk_ctrl_sub(struct mdss_dsi_ctrl_pdata *ctrl,
	u8 clk_type, int enable)
{
	int rc = 0;

	if (!ctrl) {
		pr_err("%s: Invalid arg\n", __func__);
		return -EINVAL;
	}

	pr_debug("%s: ndx=%d clk_type=%08x enable=%d\n", __func__,
		ctrl->ndx, clk_type, enable);

	if (enable) {
		if (clk_type & DSI_BUS_CLKS) {
			rc = mdss_dsi_bus_clk_start(ctrl);
			if (rc) {
				pr_err("Failed to start bus clocks. rc=%d\n",
					rc);
				goto error;
			}
		}
		if (clk_type & DSI_LINK_CLKS) {
			rc = mdss_dsi_link_clk_start(ctrl);
			if (rc) {
				pr_err("Failed to start link clocks. rc=%d\n",
					rc);
				if (clk_type & DSI_BUS_CLKS)
					mdss_dsi_bus_clk_stop(ctrl);
				goto error;
			}
		}
	} else {
		if (clk_type & DSI_LINK_CLKS)
			mdss_dsi_link_clk_stop(ctrl);
		if (clk_type & DSI_BUS_CLKS)
			mdss_dsi_bus_clk_stop(ctrl);
	}

error:
	return rc;
}

示例#3

文件： msm_mdss_io_8974.c 项目： dtsd/zte_blade_s6_lollipop_kernel

static int mdss_dsi_clk_ctrl_sub(struct mdss_dsi_ctrl_pdata *ctrl,
	u8 clk_type, int enable)
{
	int rc = 0;
	struct mdss_panel_data *pdata;

	if (!ctrl) {
		pr_err("%s: Invalid arg\n", __func__);
		return -EINVAL;
	}

	pdata = &ctrl->panel_data;

	pr_debug("%s: ndx=%d clk_type=%08x enable=%d\n", __func__,
		ctrl->ndx, clk_type, enable);

	if (enable) {
		if (clk_type & DSI_BUS_CLKS) {
			rc = mdss_dsi_core_power_ctrl(ctrl, enable);
			if (rc) {
				pr_err("%s: Failed to enable core power. rc=%d\n",
					__func__, rc);
				goto error;
			}
		}
		if (clk_type & DSI_LINK_CLKS) {
			rc = mdss_dsi_link_clk_start(ctrl);
			if (rc) {
				pr_err("%s: Failed to start link clocks. rc=%d\n",
					__func__, rc);
				goto error_link_clk_start;
			}
			/* Disable ULPS, if enabled */
			if (ctrl->ulps) {
				rc = mdss_dsi_ulps_config(ctrl, 0);
				if (rc) {
					pr_err("%s: Failed to exit ulps. rc=%d\n",
						__func__, rc);
					goto error_ulps_exit;
				}
			}
		}
	} else {
		if (clk_type & DSI_LINK_CLKS) {
			/*
			 * If ULPS feature is enabled, enter ULPS first.
			 * If ULPS during suspend is not enabled, no need
			 * to enable ULPS when turning off the clocks
			 * while blanking the panel.
			 */
			if (((mdss_dsi_ulps_feature_enabled(pdata)) &&
				(pdata->panel_info.blank_state !=
				 MDSS_PANEL_BLANK_BLANK)) ||
				(pdata->panel_info.ulps_suspend_enabled))
				mdss_dsi_ulps_config(ctrl, 1);

			mdss_dsi_link_clk_stop(ctrl);
		}
		if (clk_type & DSI_BUS_CLKS) {
			rc = mdss_dsi_core_power_ctrl(ctrl, enable);
			if (rc) {
				pr_err("%s: Failed to disable core power. rc=%d\n",
					__func__, rc);
			}
		}
	}

	return rc;

error_ulps_exit:
	mdss_dsi_link_clk_stop(ctrl);
error_link_clk_start:
	if ((clk_type & DSI_BUS_CLKS) &&
		(mdss_dsi_core_power_ctrl(ctrl, !enable)))
		pr_warn("%s: Failed to disable core power. rc=%d\n",
			__func__, rc);
error:
	return rc;
}

示例#4

文件： msm_mdss_io_8974.c 项目： GSandeep24/android_kernel_lenovo_msm8916

static int mdss_dsi_clk_ctrl_sub(struct mdss_dsi_ctrl_pdata *ctrl,
	u8 clk_type, int enable)
{
	int rc = 0;
	struct mdss_panel_data *pdata;

	if (!ctrl) {
		pr_err("%s: Invalid arg\n", __func__);
		return -EINVAL;
	}

	pdata = &ctrl->panel_data;

	pr_debug("%s: ndx=%d clk_type=%08x enable=%d\n", __func__,
		ctrl->ndx, clk_type, enable);

	if (enable) {
		if (clk_type & DSI_BUS_CLKS) {
			/* enable mdss gdsc */
			pr_debug("%s: Enable MDP FS\n", __func__);
			rc = msm_dss_enable_vreg(
				ctrl->power_data[DSI_CORE_PM].vreg_config,
				ctrl->power_data[DSI_CORE_PM].num_vreg, 1);
			if (rc) {
				pr_err("%s: failed to enable vregs for %s\n",
					__func__,
					__mdss_dsi_pm_name(DSI_CORE_PM));
				goto error;
			}

			rc = mdss_dsi_bus_clk_start(ctrl);
			if (rc) {
				pr_err("Failed to start bus clocks. rc=%d\n",
					rc);
				goto error_vreg;
			}
		}
		if (clk_type & DSI_LINK_CLKS) {
			rc = mdss_dsi_link_clk_start(ctrl);
			if (rc) {
				pr_err("Failed to start link clocks. rc=%d\n",
					rc);
				goto error_link_clk_start;
			}
			/* Disable ULPS, if enabled */
			if (ctrl->ulps) {
				rc = mdss_dsi_ulps_config(ctrl, 0);
				if (rc) {
					pr_err("Failed to exit ulps. rc=%d\n",
						rc);
					goto error_ulps_exit;
				}
			}
		}
	} else {
		if (clk_type & DSI_LINK_CLKS) {
			/*
			 * If ULPS feature is enabled, enter ULPS first.
			 * No need to enable ULPS when turning off clocks
			 * while blanking the panel.
			 */
			if ((mdss_dsi_ulps_feature_enabled(pdata)) &&
				(pdata->panel_info.panel_power_on))
				mdss_dsi_ulps_config(ctrl, 1);
			mdss_dsi_link_clk_stop(ctrl);
		}
		if (clk_type & DSI_BUS_CLKS) {
			mdss_dsi_bus_clk_stop(ctrl);

			/* disable mdss gdsc */
			pr_debug("%s: Disable MDP FS\n", __func__);
			rc = msm_dss_enable_vreg(
				ctrl->power_data[DSI_CORE_PM].vreg_config,
				ctrl->power_data[DSI_CORE_PM].num_vreg, 0);
			if (rc) {
				pr_warn("%s: failed to disable vregs for %s\n",
					__func__,
					__mdss_dsi_pm_name(DSI_CORE_PM));
				rc = 0;
			}
		}
	}

	return rc;

error_ulps_exit:
	mdss_dsi_link_clk_stop(ctrl);
error_link_clk_start:
	if (clk_type & DSI_BUS_CLKS)
		mdss_dsi_bus_clk_stop(ctrl);
error_vreg:
	if ((clk_type & DSI_BUS_CLKS) &&
		(msm_dss_enable_vreg(ctrl->power_data[DSI_CORE_PM].vreg_config,
			ctrl->power_data[DSI_CORE_PM].num_vreg, 0))) {
		pr_warn("%s: failed to disable vregs for %s\n", __func__,
			__mdss_dsi_pm_name(DSI_CORE_PM));
	}
error:
	return rc;
}

示例#5

文件： msm_mdss_io_8974.c 项目： miuihu/android_kernel_xiaomi_redmi2

static int mdss_dsi_clk_ctrl_sub(struct mdss_dsi_ctrl_pdata *ctrl,
	u8 clk_type, int enable)
{
	int rc = 0;
	struct mdss_panel_data *pdata;

	if (!ctrl) {
		pr_err("%s: Invalid arg\n", __func__);
		return -EINVAL;
	}

	pdata = &ctrl->panel_data;

	pr_debug("%s: ndx=%d clk_type=%08x enable=%d\n", __func__,
		ctrl->ndx, clk_type, enable);

	if (enable) {
		if (clk_type & DSI_BUS_CLKS) {
			/* enable mdss gdsc */
			pr_debug("%s: Enable MDP FS\n", __func__);
			rc = msm_dss_enable_vreg(
				ctrl->power_data[DSI_CORE_PM].vreg_config,
				ctrl->power_data[DSI_CORE_PM].num_vreg, 1);
			if (rc) {
				pr_err("%s: failed to enable vregs for %s\n",
					__func__,
					__mdss_dsi_pm_name(DSI_CORE_PM));
				goto error;
			}

			rc = mdss_dsi_bus_clk_start(ctrl);
			if (rc) {
				pr_err("Failed to start bus clocks. rc=%d\n",
					rc);
				goto error_vreg;
			}
		}
		if (clk_type & DSI_LINK_CLKS) {
			if (ctrl->mmss_clamp) {
				mdss_dsi_phy_init(pdata);
				mdss_dsi_ctrl_setup(pdata);
				mdss_dsi_host_init(pdata);
				mdss_dsi_op_mode_config(pdata->panel_info.mipi.mode,
					pdata);
				/*
				 * ULPS Entry Request. This is needed because, after power
				 * collapse and reset, the DSI controller resets back to
				 * idle state and not ULPS.
				 */
				mdss_dsi_ulps_config(ctrl, 1);
				mdss_dsi_clamp_ctrl(ctrl, 0);
			}
			rc = mdss_dsi_link_clk_start(ctrl);
			if (rc) {
				pr_err("Failed to start link clocks. rc=%d\n",
					rc);
				goto error_link_clk_start;
			}
			/* Disable ULPS, if enabled */
			if (ctrl->ulps) {
				rc = mdss_dsi_ulps_config(ctrl, 0);
				if (rc) {
					pr_err("Failed to exit ulps. rc=%d\n",
						rc);
					goto error_ulps_exit;
				}
			}
		}
	} else {
		if (clk_type & DSI_LINK_CLKS) {
			/*
			 * If ULPS feature is enabled, enter ULPS first.
			 * No need to enable ULPS when turning off clocks
			 * while blanking the panel.
			 */
			if (((mdss_dsi_ulps_feature_enabled(pdata)) &&
				(pdata->panel_info.panel_power_on)) ||
				(pdata->panel_info.ulps_suspend_enabled &&
				  !pdata->panel_info.panel_power_on)) {
				mdss_dsi_ulps_config(ctrl, 1);
				mdss_dsi_link_clk_stop(ctrl);
				mdss_dsi_clamp_ctrl(ctrl, 1);
			} else {
				mdss_dsi_link_clk_stop(ctrl);
			}
		}
		if (clk_type & DSI_BUS_CLKS) {
			mdss_dsi_bus_clk_stop(ctrl);

			/* disable mdss gdsc */
			pr_debug("%s: Disable MDP FS\n", __func__);
			rc = msm_dss_enable_vreg(
				ctrl->power_data[DSI_CORE_PM].vreg_config,
				ctrl->power_data[DSI_CORE_PM].num_vreg, 0);
			if (rc) {
				pr_warn("%s: failed to disable vregs for %s\n",
					__func__,
					__mdss_dsi_pm_name(DSI_CORE_PM));
				rc = 0;
			}
		}
	}

	return rc;

error_ulps_exit:
	mdss_dsi_link_clk_stop(ctrl);
error_link_clk_start:
	if (clk_type & DSI_BUS_CLKS)
		mdss_dsi_bus_clk_stop(ctrl);
error_vreg:
	if ((clk_type & DSI_BUS_CLKS) &&
		(msm_dss_enable_vreg(ctrl->power_data[DSI_CORE_PM].vreg_config,
			ctrl->power_data[DSI_CORE_PM].num_vreg, 0))) {
		pr_warn("%s: failed to disable vregs for %s\n", __func__,
			__mdss_dsi_pm_name(DSI_CORE_PM));
	}
error:
	return rc;
}