Patch "clk: Show active consumers of clocks in debugfs" has been added to the 6.6-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    clk: Show active consumers of clocks in debugfs

to the 6.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     clk-show-active-consumers-of-clocks-in-debugfs.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit f7deca7e1681741a0c477e4408cbda438dc7715d
Author: Vishal Badole <badolevishal1116@xxxxxxxxx>
Date:   Sun Nov 27 22:53:19 2022 +0530

    clk: Show active consumers of clocks in debugfs
    
    [ Upstream commit dcce5cc7826e9c6b3a2443e5e6b7f8d02a103c35 ]
    
    This feature lists the clock consumer's name and respective connection
    id. Using this feature user can easily check that which user has
    acquired and enabled a particular clock.
    
    Usage:
    >> cat /sys/kernel/debug/clk/clk_summary
                          enable  prepare  protect
                                                                              duty  hardware                            Connection
       clock               count    count    count    rate   accuracy phase  cycle    enable   consumer                         Id
    ------------------------------------------------------------------------------------------------------------------------------
     clk_mcasp0_fixed         0        0        0    24576000          0      0  50000     Y   deviceless                     of_clk_get_from_provider
                                                                                               deviceless                     no_connection_id
        clk_mcasp0            0        0        0    24576000          0      0  50000     N      simple-audio-card,cpu           no_connection_id
                                                                                                  deviceless                      no_connection_id
    
    Co-developed-by: Chinmoy Ghosh <chinmoyghosh2001@xxxxxxxxx>
    Signed-off-by: Chinmoy Ghosh <chinmoyghosh2001@xxxxxxxxx>
    Co-developed-by: Mintu Patel <mintupatel89@xxxxxxxxx>
    Signed-off-by: Mintu Patel <mintupatel89@xxxxxxxxx>
    Co-developed-by: Vimal Kumar <vimal.kumar32@xxxxxxxxx>
    Signed-off-by: Vimal Kumar <vimal.kumar32@xxxxxxxxx>
    Signed-off-by: Vishal Badole <badolevishal1116@xxxxxxxxx>
    Link: https://lore.kernel.org/r/1669569799-8526-1-git-send-email-badolevishal1116@xxxxxxxxx
    Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxx>
    Stable-dep-of: 9d1e795f754d ("clk: Get runtime PM before walking tree for clk_summary")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 7c87a8084df76..011e7632541fa 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -3279,28 +3279,41 @@ static void clk_summary_show_one(struct seq_file *s, struct clk_core *c,
 				 int level)
 {
 	int phase;
+	struct clk *clk_user;
+	int multi_node = 0;
 
-	seq_printf(s, "%*s%-*s %7d %8d %8d %11lu %10lu ",
+	seq_printf(s, "%*s%-*s %-7d %-8d %-8d %-11lu %-10lu ",
 		   level * 3 + 1, "",
-		   30 - level * 3, c->name,
+		   35 - level * 3, c->name,
 		   c->enable_count, c->prepare_count, c->protect_count,
 		   clk_core_get_rate_recalc(c),
 		   clk_core_get_accuracy_recalc(c));
 
 	phase = clk_core_get_phase(c);
 	if (phase >= 0)
-		seq_printf(s, "%5d", phase);
+		seq_printf(s, "%-5d", phase);
 	else
 		seq_puts(s, "-----");
 
-	seq_printf(s, " %6d", clk_core_get_scaled_duty_cycle(c, 100000));
+	seq_printf(s, " %-6d", clk_core_get_scaled_duty_cycle(c, 100000));
 
 	if (c->ops->is_enabled)
-		seq_printf(s, " %9c\n", clk_core_is_enabled(c) ? 'Y' : 'N');
+		seq_printf(s, " %5c ", clk_core_is_enabled(c) ? 'Y' : 'N');
 	else if (!c->ops->enable)
-		seq_printf(s, " %9c\n", 'Y');
+		seq_printf(s, " %5c ", 'Y');
 	else
-		seq_printf(s, " %9c\n", '?');
+		seq_printf(s, " %5c ", '?');
+
+	hlist_for_each_entry(clk_user, &c->clks, clks_node) {
+		seq_printf(s, "%*s%-*s  %-25s\n",
+			   level * 3 + 2 + 105 * multi_node, "",
+			   30,
+			   clk_user->dev_id ? clk_user->dev_id : "deviceless",
+			   clk_user->con_id ? clk_user->con_id : "no_connection_id");
+
+		multi_node = 1;
+	}
+
 }
 
 static void clk_summary_show_subtree(struct seq_file *s, struct clk_core *c,
@@ -3321,9 +3334,10 @@ static int clk_summary_show(struct seq_file *s, void *data)
 	struct clk_core *c;
 	struct hlist_head **lists = s->private;
 
-	seq_puts(s, "                                 enable  prepare  protect                                duty  hardware\n");
-	seq_puts(s, "   clock                          count    count    count        rate   accuracy phase  cycle    enable\n");
-	seq_puts(s, "-------------------------------------------------------------------------------------------------------\n");
+	seq_puts(s, "                                 enable  prepare  protect                                duty  hardware                            connection\n");
+	seq_puts(s, "   clock                          count    count    count        rate   accuracy phase  cycle    enable   consumer                         id\n");
+	seq_puts(s, "---------------------------------------------------------------------------------------------------------------------------------------------\n");
+
 
 	clk_prepare_lock();