omapdrm: hdmi4: Correct the SoC revision matching

I believe the intention of the commit 2c9fc9bf45f8
("drm: omapdrm: Move FEAT_HDMI_* features to hdmi4 driver")
was to identify omap4430 ES1.x, omap4430 ES2.x and other OMAP4 revisions,
like omap4460.

By using family=OMAP4 in the match the code will treat omap4460 ES1.x in a
same way as it would treat omap4430 ES1.x

This breaks HDMI audio on OMAP4460 devices (PandaES for example).

Correct the match rule so we are not going to get false positive match.

Fixes: 2c9fc9bf45f8 ("drm: omapdrm: Move FEAT_HDMI_* features to hdmi4 driver")
Cc: stable@vger.kernel.org # 4.14
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4_core.c b/drivers/gpu/drm/omapdrm/dss/hdmi4_core.c
index 62e451162d96f6fe4064c05bf60eaee430d15788..b06f9956e73321352eb048a6b54d54957db42f37 100644 (file)
--- a/drivers/gpu/drm/omapdrm/dss/hdmi4_core.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi4_core.c
@@ -886,25 +886,36 @@ struct hdmi4_features {
        bool audio_use_mclk;
 };
 
-static const struct hdmi4_features hdmi4_es1_features = {
+static const struct hdmi4_features hdmi4430_es1_features = {
        .cts_swmode = false,
        .audio_use_mclk = false,
 };
 
-static const struct hdmi4_features hdmi4_es2_features = {
+static const struct hdmi4_features hdmi4430_es2_features = {
        .cts_swmode = true,
        .audio_use_mclk = false,
 };
 
-static const struct hdmi4_features hdmi4_es3_features = {
+static const struct hdmi4_features hdmi4_features = {
        .cts_swmode = true,
        .audio_use_mclk = true,
 };
 
 static const struct soc_device_attribute hdmi4_soc_devices[] = {
-       { .family = "OMAP4", .revision = "ES1.?", .data = &hdmi4_es1_features },
-       { .family = "OMAP4", .revision = "ES2.?", .data = &hdmi4_es2_features },
-       { .family = "OMAP4",                      .data = &hdmi4_es3_features },
+       {
+               .machine = "OMAP4430",
+               .revision = "ES1.?",
+               .data = &hdmi4430_es1_features,
+       },
+       {
+               .machine = "OMAP4430",
+               .revision = "ES2.?",
+               .data = &hdmi4430_es2_features,
+       },
+       {
+               .family = "OMAP4",
+               .data = &hdmi4_features,
+       },
        { /* sentinel */ }
 };