From 54eff14afccb1e62bedca6c472314001c3afdf84 Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Mon, 28 Mar 2022 17:34:31 +0300
Subject: drm/edid: constify struct edid passed around in callbacks and closure
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Git-commit: c14e724114fe0e90685297e6c10ebdb14d40a7ec
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Finalize detailed timing parsing constness by making struct edid also
const in callbacks and closure.
Cc: Ville Syrj채l채 <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrj채l채 <ville.syrjala@linux.intel.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8229be49b5a7686856c17428aa9291b4c4cf1bd5.1648477901.git.jani.nikula@intel.com
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/drm_edid.c | 48 +++++++++++++++++++-------------------
1 file changed, 24 insertions(+), 24 deletions(-)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index dae394688e5b..625fa6a4a93a 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -97,7 +97,7 @@ static int oui(u8 first, u8 second, u8 third)
struct detailed_mode_closure {
struct drm_connector *connector;
- struct edid *edid;
+ const struct edid *edid;
bool preferred;
u32 quirks;
int modes;
@@ -2424,7 +2424,7 @@ is_rb(const struct detailed_timing *descriptor, void *data)
/* EDID 1.4 defines this explicitly. For EDID 1.3, we guess, badly. */
static bool
-drm_monitor_supports_rb(struct edid *edid)
+drm_monitor_supports_rb(const struct edid *edid)
{
if (edid->revision >= 4) {
bool ret = false;
@@ -2452,7 +2452,7 @@ find_gtf2(const struct detailed_timing *descriptor, void *data)
/* Secondary GTF curve kicks in above some break frequency */
static int
-drm_gtf2_hbreak(struct edid *edid)
+drm_gtf2_hbreak(const struct edid *edid)
{
const struct detailed_timing *descriptor = NULL;
@@ -2464,7 +2464,7 @@ drm_gtf2_hbreak(struct edid *edid)
}
static int
-drm_gtf2_2c(struct edid *edid)
+drm_gtf2_2c(const struct edid *edid)
{
const struct detailed_timing *descriptor = NULL;
@@ -2476,7 +2476,7 @@ drm_gtf2_2c(struct edid *edid)
}
static int
-drm_gtf2_m(struct edid *edid)
+drm_gtf2_m(const struct edid *edid)
{
const struct detailed_timing *descriptor = NULL;
@@ -2488,7 +2488,7 @@ drm_gtf2_m(struct edid *edid)
}
static int
-drm_gtf2_k(struct edid *edid)
+drm_gtf2_k(const struct edid *edid)
{
const struct detailed_timing *descriptor = NULL;
@@ -2500,7 +2500,7 @@ drm_gtf2_k(struct edid *edid)
}
static int
-drm_gtf2_2j(struct edid *edid)
+drm_gtf2_2j(const struct edid *edid)
{
const struct detailed_timing *descriptor = NULL;
@@ -2515,7 +2515,7 @@ drm_gtf2_2j(struct edid *edid)
* standard_timing_level - get std. timing level(CVT/GTF/DMT)
* @edid: EDID block to scan
*/
-static int standard_timing_level(struct edid *edid)
+static int standard_timing_level(const struct edid *edid)
{
if (edid->revision >= 2) {
if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
@@ -2558,7 +2558,7 @@ static int drm_mode_hsync(const struct drm_display_mode *mode)
* and convert them into a real mode using CVT/GTF/DMT.
*/
static struct drm_display_mode *
-drm_mode_std(struct drm_connector *connector, struct edid *edid,
+drm_mode_std(struct drm_connector *connector, const struct edid *edid,
const struct std_timing *t)
{
struct drm_device *dev = connector->dev;
@@ -2720,7 +2720,7 @@ drm_mode_do_interlace_quirk(struct drm_display_mode *mode,
* return a new struct drm_display_mode.
*/
static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
- struct edid *edid,
+ const struct edid *edid,
const struct detailed_timing *timing,
u32 quirks)
{
@@ -2820,7 +2820,7 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
static bool
mode_in_hsync_range(const struct drm_display_mode *mode,
- struct edid *edid, const u8 *t)
+ const struct edid *edid, const u8 *t)
{
int hsync, hmin, hmax;
@@ -2837,7 +2837,7 @@ mode_in_hsync_range(const struct drm_display_mode *mode,
static bool
mode_in_vsync_range(const struct drm_display_mode *mode,
- struct edid *edid, const u8 *t)
+ const struct edid *edid, const u8 *t)
{
int vsync, vmin, vmax;
@@ -2853,7 +2853,7 @@ mode_in_vsync_range(const struct drm_display_mode *mode,
}
static u32
-range_pixel_clock(struct edid *edid, const u8 *t)
+range_pixel_clock(const struct edid *edid, const u8 *t)
{
/* unspecified */
if (t[9] == 0 || t[9] == 255)
@@ -2868,7 +2868,7 @@ range_pixel_clock(struct edid *edid, const u8 *t)
}
static bool
-mode_in_range(const struct drm_display_mode *mode, struct edid *edid,
+mode_in_range(const struct drm_display_mode *mode, const struct edid *edid,
const struct detailed_timing *timing)
{
u32 max_clock;
@@ -2914,7 +2914,7 @@ static bool valid_inferred_mode(const struct drm_connector *connector,
}
static int
-drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,
+drm_dmt_modes_for_range(struct drm_connector *connector, const struct edid *edid,
const struct detailed_timing *timing)
{
int i, modes = 0;
@@ -2949,7 +2949,7 @@ void drm_mode_fixup_1366x768(struct drm_display_mode *mode)
}
static int
-drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,
+drm_gtf_modes_for_range(struct drm_connector *connector, const struct edid *edid,
const struct detailed_timing *timing)
{
int i, modes = 0;
@@ -2978,7 +2978,7 @@ drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,
}
static int
-drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid,
+drm_cvt_modes_for_range(struct drm_connector *connector, const struct edid *edid,
const struct detailed_timing *timing)
{
int i, modes = 0;
@@ -3046,7 +3046,7 @@ do_inferred_modes(const struct detailed_timing *timing, void *c)
}
static int
-add_inferred_modes(struct drm_connector *connector, struct edid *edid)
+add_inferred_modes(struct drm_connector *connector, const struct edid *edid)
{
struct detailed_mode_closure closure = {
.connector = connector,
@@ -3108,7 +3108,7 @@ do_established_modes(const struct detailed_timing *timing, void *c)
* (defined above). Tease them out and add them to the global modes list.
*/
static int
-add_established_modes(struct drm_connector *connector, struct edid *edid)
+add_established_modes(struct drm_connector *connector, const struct edid *edid)
{
struct drm_device *dev = connector->dev;
unsigned long est_bits = edid->established_timings.t1 |
@@ -3145,7 +3145,7 @@ do_standard_modes(const struct detailed_timing *timing, void *c)
struct detailed_mode_closure *closure = c;
const struct detailed_non_pixel *data = &timing->data.other_data;
struct drm_connector *connector = closure->connector;
- struct edid *edid = closure->edid;
+ const struct edid *edid = closure->edid;
int i;
if (!is_display_descriptor(timing, EDID_DETAIL_STD_MODES))
@@ -3172,7 +3172,7 @@ do_standard_modes(const struct detailed_timing *timing, void *c)
* GTF or CVT. Grab them from @edid and add them to the list.
*/
static int
-add_standard_modes(struct drm_connector *connector, struct edid *edid)
+add_standard_modes(struct drm_connector *connector, const struct edid *edid)
{
int i, modes = 0;
struct detailed_mode_closure closure = {
@@ -3264,7 +3264,7 @@ do_cvt_mode(const struct detailed_timing *timing, void *c)
}
static int
-add_cvt_modes(struct drm_connector *connector, struct edid *edid)
+add_cvt_modes(struct drm_connector *connector, const struct edid *edid)
{
struct detailed_mode_closure closure = {
.connector = connector,
@@ -3318,7 +3318,7 @@ do_detailed_mode(const struct detailed_timing *timing, void *c)
* @quirks: quirks to apply
*/
static int
-add_detailed_modes(struct drm_connector *connector, struct edid *edid,
+add_detailed_modes(struct drm_connector *connector, const struct edid *edid,
u32 quirks)
{
struct detailed_mode_closure closure = {
@@ -4525,7 +4525,7 @@ monitor_name(const struct detailed_timing *timing, void *data)
*res = timing->data.other_data.data.str.str;
}
-static int get_monitor_name(struct edid *edid, char name[13])
+static int get_monitor_name(const struct edid *edid, char name[13])
{
const char *edid_name = NULL;
int mnl;
--
2.38.1