Merge "msm: mdss: expose MDP capabilities through sysfs on 8x10" (8c376a52) · Commits · e / devices / android_kernel_sony_msm8994

drivers/video/msm/mdss/mdp3.c

+51 −0

Original line number	Diff line number	Diff line
		@@ -1936,6 +1936,53 @@ static void mdp3_dma_underrun_intr_handler(int type, void *arg)
		mdp3_res->underrun_cnt);
		}

		static ssize_t mdp3_show_capabilities(struct device *dev,
		struct device_attribute attr, char buf)
		{
		size_t len = PAGE_SIZE;
		int cnt = 0;

		#define SPRINT(fmt, ...) \
		(cnt += scnprintf(buf + cnt, len - cnt, fmt, ##__VA_ARGS__))

		SPRINT("mdp_version=3\n");
		SPRINT("hw_rev=%d\n", 304);
		SPRINT("dma_pipes=%d\n", 1);
		SPRINT("\n");

		return cnt;
		}

		static DEVICE_ATTR(caps, S_IRUGO, mdp3_show_capabilities, NULL);

		static struct attribute *mdp3_fs_attrs[] = {
		&dev_attr_caps.attr,
		NULL
		};

		static struct attribute_group mdp3_fs_attr_group = {
		.attrs = mdp3_fs_attrs
		};

		static int mdp3_register_sysfs(struct platform_device *pdev)
		{
		struct device *dev = &pdev->dev;
		int rc;

		rc = sysfs_create_group(&dev->kobj, &mdp3_fs_attr_group);

		return rc;
		}

		int mdp3_create_sysfs_link(struct device *dev)
		{
		int rc;
		rc = sysfs_create_link_nowarn(&dev->kobj,
		&mdp3_res->pdev->dev.kobj, "mdp");

		return rc;
		}

		static int mdp3_probe(struct platform_device *pdev)
		{
		int rc;
		@@ -1994,6 +2041,10 @@ static int mdp3_probe(struct platform_device *pdev)
		goto probe_done;
		}

		rc = mdp3_register_sysfs(pdev);
		if (rc)
		pr_err("unable to register mdp sysfs nodes\n");

		rc = mdss_fb_register_mdp_instance(&mdp3_interface);
		if (rc)
		pr_err("unable to register mdp instance\n");

+1 −0

Original line number	Diff line number	Diff line
		@@ -188,6 +188,7 @@ int mdp3_iommu_is_attached(int client);
		void mdp3_free(void);
		int mdp3_parse_dt_splash(struct msm_fb_data_type *mfd);
		void mdp3_release_splash_memory(void);
		int mdp3_create_sysfs_link(struct device *dev);

		#define MDP3_REG_WRITE(addr, val) writel_relaxed(val, mdp3_res->mdp_base + addr)
		#define MDP3_REG_READ(addr) readl_relaxed(mdp3_res->mdp_base + addr)

+4 −0

Original line number	Diff line number	Diff line
		@@ -1555,6 +1555,10 @@ int mdp3_ctrl_init(struct msm_fb_data_type *mfd)
		goto init_done;
		}

		rc = mdp3_create_sysfs_link(dev);
		if (rc)
		pr_warn("problem creating link to mdp sysfs\n");

		kobject_uevent(&dev->kobj, KOBJ_ADD);
		pr_debug("vsync kobject_uevent(KOBJ_ADD)\n");