Merge "msm: sps: Add debugfs support for IPC logging in SPS driver" (60102c3d) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/platform/msm/sps/sps.c

+18 −0

Original line number	Diff line number	Diff line
		@@ -57,6 +57,11 @@ u8 reg_dump_option;
		u32 testbus_sel;
		u32 bam_pipe_sel;
		u32 desc_option;
		/**
		* Specifies range of log level from level 0 to level 3 to have fine-granularity for logging
		* to serve all BAM use cases.
		*/
		u32 log_level_sel;

		static char *debugfs_buf;
		static u32 debugfs_buf_size;
		@@ -73,6 +78,7 @@ struct dentry *dfile_testbus_sel;
		struct dentry *dfile_bam_pipe_sel;
		struct dentry *dfile_desc_option;
		struct dentry *dfile_bam_addr;
		struct dentry *dfile_log_level_sel;

		static struct sps_bam *phy2bam(phys_addr_t phys_addr);

		@@ -283,6 +289,7 @@ static ssize_t sps_set_bam_addr(struct file file, const char __user buf,
		} else {
		vir_addr = &bam->base;
		num_pipes = bam->props.num_pipes;
		bam->ipc_loglevel = log_level_sel;
		}

		switch (reg_dump_option) {
		@@ -493,6 +500,7 @@ static void sps_debugfs_init(void)
		debugfs_buf_size = 0;
		debugfs_buf_used = 0;
		wraparound = false;
		log_level_sel = 0;

		dent = debugfs_create_dir("sps", 0);
		if (IS_ERR(dent)) {
		@@ -568,8 +576,17 @@ static void sps_debugfs_init(void)
		goto bam_addr_err;
		}

		dfile_log_level_sel = debugfs_create_u32("log_level_sel", 0664,
		dent, &log_level_sel);
		if (!dfile_log_level_sel \|\| IS_ERR(dfile_log_level_sel)) {
		pr_err("sps:fail to create debug_fs file for log_level_sel.\n");
		goto bam_log_level_err;
		}

		return;

		bam_log_level_err:
		debugfs_remove(dfile_bam_addr);
		bam_addr_err:
		debugfs_remove(dfile_desc_option);
		desc_option_err:
		@@ -612,6 +629,7 @@ static void sps_debugfs_exit(void)
		debugfs_remove(dfile_bam_addr);
		if (dent)
		debugfs_remove(dent);
		debugfs_remove(dfile_log_level_sel);
		kfree(debugfs_buf);
		debugfs_buf = NULL;
		}