platform/x86:intel/pmc: Improve function to show substate header

Refactor pmc_core_substate_req_header_show() to accept a new argument.
This is a preparation patch to introduce a new way to show Low Power
Mode substate requirement data for platforms starting from Panther
Lake. Increased the size for the name column as the Low Power Mode
requirement register name is longer in newer platforms.

Signed-off-by: Xi Pardee <xi.pardee@linux.intel.com>
Link: https://patch.msgid.link/20250910210629.11198-4-xi.pardee@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c
index a1ab0e31eca7b47a8b2a33757458cdf138ad2aa4..b3e9ea31db9c6bef453dd96d4756c459656b7c59 100644 (file)
--- a/drivers/platform/x86/intel/pmc/core.c
+++ b/drivers/platform/x86/intel/pmc/core.c
@@ -11,6 +11,11 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+enum header_type {
+       HEADER_STATUS,
+       HEADER_VALUE,
+};
+
 #include <linux/bitfield.h>
 #include <linux/debugfs.h>
 #include <linux/delay.h>
@@ -828,17 +833,22 @@ static int pmc_core_substate_l_sts_regs_show(struct seq_file *s, void *unused)
 }
 DEFINE_SHOW_ATTRIBUTE(pmc_core_substate_l_sts_regs);
 
-static void pmc_core_substate_req_header_show(struct seq_file *s, int pmc_index)
+static void pmc_core_substate_req_header_show(struct seq_file *s, int pmc_index,
+                                             enum header_type type)
 {
        struct pmc_dev *pmcdev = s->private;
        int mode;
 
-       seq_printf(s, "%30s |", "Element");
+       seq_printf(s, "%40s |", "Element");
        pmc_for_each_mode(mode, pmcdev)
                seq_printf(s, " %9s |", pmc_lpm_modes[mode]);
 
-       seq_printf(s, " %9s |", "Status");
-       seq_printf(s, " %11s |\n", "Live Status");
+       if (type == HEADER_STATUS) {
+               seq_printf(s, " %9s |", "Status");
+               seq_printf(s, " %11s |\n", "Live Status");
+       } else {
+               seq_printf(s, " %9s |\n", "Value");
+       }
 }
 
 static int pmc_core_substate_req_regs_show(struct seq_file *s, void *unused)
@@ -872,7 +882,7 @@ static int pmc_core_substate_req_regs_show(struct seq_file *s, void *unused)
                        continue;
 
                /* Display the header */
-               pmc_core_substate_req_header_show(s, pmc_index);
+               pmc_core_substate_req_header_show(s, pmc_index, HEADER_STATUS);
 
                /* Loop over maps */
                for (mp = 0; mp < num_maps; mp++) {
@@ -910,7 +920,7 @@ static int pmc_core_substate_req_regs_show(struct seq_file *s, void *unused)
                                }
 
                                /* Display the element name in the first column */
-                               seq_printf(s, "pmc%d: %26s |", pmc_index, map[i].name);
+                               seq_printf(s, "pmc%d: %34s |", pmc_index, map[i].name);
 
                                /* Loop over the enabled states and display if required */
                                pmc_for_each_mode(mode, pmcdev) {