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Message-ID: <20230712024017.218921-10-manikandan.m@microchip.com>
Date: Wed, 12 Jul 2023 08:10:17 +0530
From: Manikandan Muralidharan <manikandan.m@...rochip.com>
To: <lee@...nel.org>, <robh+dt@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
<nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
<claudiu.beznea@...rochip.com>, <sam@...nborg.org>,
<bbrezillon@...nel.org>, <airlied@...il.com>, <daniel@...ll.ch>,
<devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>
CC: <Hari.PrasathGE@...rochip.com>,
<Balamanikandan.Gunasundar@...rochip.com>,
<Durai.ManickamKR@...rochip.com>, <Nayabbasha.Sayed@...rochip.com>,
<Dharma.B@...rochip.com>, <Varshini.Rajendran@...rochip.com>,
<Balakrishnan.S@...rochip.com>,
Manikandan Muralidharan <manikandan.m@...rochip.com>,
Durai Manickam KR <durai.manickamkr@...rochip.com>
Subject: [PATCH v2 9/9] drm: atmel-hlcdc: add support for DSI output formats
Add support for the following DPI mode if the encoder type
is DSI as per the XLCDC IP datasheet:
- 16BPPCFG1
- 16BPPCFG2
- 16BPPCFG3
- 18BPPCFG1
- 18BPPCFG2
- 24BPP
Signed-off-by: Manikandan Muralidharan <manikandan.m@...rochip.com>
[durai.manickamkr@...rochip.com: update output format using is_xlcdc flag]
Signed-off-by: Durai Manickam KR <durai.manickamkr@...rochip.com>
---
.../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 117 +++++++++++++-----
1 file changed, 86 insertions(+), 31 deletions(-)
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
index c0a1d2d31ed2..4035410ba1df 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
@@ -269,11 +269,18 @@ static void atmel_hlcdc_crtc_atomic_enable(struct drm_crtc *c,
}
-#define ATMEL_HLCDC_RGB444_OUTPUT BIT(0)
-#define ATMEL_HLCDC_RGB565_OUTPUT BIT(1)
-#define ATMEL_HLCDC_RGB666_OUTPUT BIT(2)
-#define ATMEL_HLCDC_RGB888_OUTPUT BIT(3)
-#define ATMEL_HLCDC_OUTPUT_MODE_MASK GENMASK(3, 0)
+#define ATMEL_HLCDC_RGB444_OUTPUT BIT(0)
+#define ATMEL_HLCDC_RGB565_OUTPUT BIT(1)
+#define ATMEL_HLCDC_RGB666_OUTPUT BIT(2)
+#define ATMEL_HLCDC_RGB888_OUTPUT BIT(3)
+#define ATMEL_HLCDC_DPI_RGB565C1_OUTPUT BIT(4)
+#define ATMEL_HLCDC_DPI_RGB565C2_OUTPUT BIT(5)
+#define ATMEL_HLCDC_DPI_RGB565C3_OUTPUT BIT(6)
+#define ATMEL_HLCDC_DPI_RGB666C1_OUTPUT BIT(7)
+#define ATMEL_HLCDC_DPI_RGB666C2_OUTPUT BIT(8)
+#define ATMEL_HLCDC_DPI_RGB888_OUTPUT BIT(9)
+#define ATMEL_HLCDC_OUTPUT_MODE_MASK GENMASK(3, 0)
+#define ATMEL_XLCDC_OUTPUT_MODE_MASK GENMASK(9, 0)
static int atmel_hlcdc_connector_output_mode(struct drm_connector_state *state)
{
@@ -287,37 +294,83 @@ static int atmel_hlcdc_connector_output_mode(struct drm_connector_state *state)
if (!encoder)
encoder = connector->encoder;
- switch (atmel_hlcdc_encoder_get_bus_fmt(encoder)) {
- case 0:
- break;
- case MEDIA_BUS_FMT_RGB444_1X12:
- return ATMEL_HLCDC_RGB444_OUTPUT;
- case MEDIA_BUS_FMT_RGB565_1X16:
- return ATMEL_HLCDC_RGB565_OUTPUT;
- case MEDIA_BUS_FMT_RGB666_1X18:
- return ATMEL_HLCDC_RGB666_OUTPUT;
- case MEDIA_BUS_FMT_RGB888_1X24:
- return ATMEL_HLCDC_RGB888_OUTPUT;
- default:
- return -EINVAL;
- }
-
- for (j = 0; j < info->num_bus_formats; j++) {
- switch (info->bus_formats[j]) {
- case MEDIA_BUS_FMT_RGB444_1X12:
- supported_fmts |= ATMEL_HLCDC_RGB444_OUTPUT;
+ if (encoder->encoder_type == DRM_MODE_ENCODER_DSI) {
+ /*
+ * atmel-hlcdc to support DSI formats with DSI video pipeline
+ * when DRM_MODE_ENCODER_DSI type is set by
+ * connector driver component.
+ */
+ switch (atmel_hlcdc_encoder_get_bus_fmt(encoder)) {
+ case 0:
break;
case MEDIA_BUS_FMT_RGB565_1X16:
- supported_fmts |= ATMEL_HLCDC_RGB565_OUTPUT;
- break;
+ return ATMEL_HLCDC_DPI_RGB565C1_OUTPUT;
case MEDIA_BUS_FMT_RGB666_1X18:
- supported_fmts |= ATMEL_HLCDC_RGB666_OUTPUT;
- break;
+ return ATMEL_HLCDC_DPI_RGB666C1_OUTPUT;
+ case MEDIA_BUS_FMT_RGB666_1X24_CPADHI:
+ return ATMEL_HLCDC_DPI_RGB666C2_OUTPUT;
case MEDIA_BUS_FMT_RGB888_1X24:
- supported_fmts |= ATMEL_HLCDC_RGB888_OUTPUT;
- break;
+ return ATMEL_HLCDC_DPI_RGB888_OUTPUT;
default:
+ return -EINVAL;
+ }
+
+ for (j = 0; j < info->num_bus_formats; j++) {
+ switch (info->bus_formats[j]) {
+ case MEDIA_BUS_FMT_RGB565_1X16:
+ supported_fmts |=
+ ATMEL_HLCDC_DPI_RGB565C1_OUTPUT;
+ break;
+ case MEDIA_BUS_FMT_RGB666_1X18:
+ supported_fmts |=
+ ATMEL_HLCDC_DPI_RGB666C1_OUTPUT;
+ break;
+ case MEDIA_BUS_FMT_RGB666_1X24_CPADHI:
+ supported_fmts |=
+ ATMEL_HLCDC_DPI_RGB666C2_OUTPUT;
+ break;
+ case MEDIA_BUS_FMT_RGB888_1X24:
+ supported_fmts |=
+ ATMEL_HLCDC_DPI_RGB888_OUTPUT;
+ break;
+ default:
+ break;
+ }
+ }
+
+ } else {
+ switch (atmel_hlcdc_encoder_get_bus_fmt(encoder)) {
+ case 0:
break;
+ case MEDIA_BUS_FMT_RGB444_1X12:
+ return ATMEL_HLCDC_RGB444_OUTPUT;
+ case MEDIA_BUS_FMT_RGB565_1X16:
+ return ATMEL_HLCDC_RGB565_OUTPUT;
+ case MEDIA_BUS_FMT_RGB666_1X18:
+ return ATMEL_HLCDC_RGB666_OUTPUT;
+ case MEDIA_BUS_FMT_RGB888_1X24:
+ return ATMEL_HLCDC_RGB888_OUTPUT;
+ default:
+ return -EINVAL;
+ }
+
+ for (j = 0; j < info->num_bus_formats; j++) {
+ switch (info->bus_formats[j]) {
+ case MEDIA_BUS_FMT_RGB444_1X12:
+ supported_fmts |= ATMEL_HLCDC_RGB444_OUTPUT;
+ break;
+ case MEDIA_BUS_FMT_RGB565_1X16:
+ supported_fmts |= ATMEL_HLCDC_RGB565_OUTPUT;
+ break;
+ case MEDIA_BUS_FMT_RGB666_1X18:
+ supported_fmts |= ATMEL_HLCDC_RGB666_OUTPUT;
+ break;
+ case MEDIA_BUS_FMT_RGB888_1X24:
+ supported_fmts |= ATMEL_HLCDC_RGB888_OUTPUT;
+ break;
+ default:
+ break;
+ }
}
}
@@ -326,7 +379,7 @@ static int atmel_hlcdc_connector_output_mode(struct drm_connector_state *state)
static int atmel_hlcdc_crtc_select_output_mode(struct drm_crtc_state *state)
{
- unsigned int output_fmts = ATMEL_HLCDC_OUTPUT_MODE_MASK;
+ unsigned int output_fmts;
struct atmel_hlcdc_crtc_state *hstate;
struct drm_connector_state *cstate;
struct drm_connector *connector;
@@ -334,6 +387,8 @@ static int atmel_hlcdc_crtc_select_output_mode(struct drm_crtc_state *state)
int i;
crtc = drm_crtc_to_atmel_hlcdc_crtc(state->crtc);
+ output_fmts = crtc->dc->desc->is_xlcdc ? ATMEL_XLCDC_OUTPUT_MODE_MASK :
+ ATMEL_HLCDC_OUTPUT_MODE_MASK;
for_each_new_connector_in_state(state->state, connector, cstate, i) {
unsigned int supported_fmts = 0;
--
2.25.1
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