From: Jagan Teki <jagan@amarulasolutions.com>
To: Andrzej Hajda <andrzej.hajda@intel.com>,
Inki Dae <inki.dae@samsung.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Joonyoung Shim <jy0922.shim@samsung.com>,
Seung-Woo Kim <sw0312.kim@samsung.com>,
Kyungmin Park <kyungmin.park@samsung.com>,
Frieder Schrempf <frieder.schrempf@kontron.de>,
Fancy Fang <chen.fang@nxp.com>,
Tim Harvey <tharvey@gateworks.com>,
Michael Nazzareno Trimarchi <michael@amarulasolutions.com>,
Adam Ford <aford173@gmail.com>,
Neil Armstrong <narmstrong@linaro.org>,
Robert Foss <robert.foss@linaro.org>,
Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
Tommaso Merciai <tommaso.merciai@amarulasolutions.com>,
Marek Vasut <marex@denx.de>
Cc: Matteo Lisi <matteo.lisi@engicam.com>,
dri-devel@lists.freedesktop.org,
linux-samsung-soc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
NXP Linux Team <linux-imx@nxp.com>,
linux-amarula <linux-amarula@amarulasolutions.com>,
Jagan Teki <jagan@amarulasolutions.com>
Subject: [PATCH v6 07/10] drm: bridge: samsung-dsim: Add atomic_get_input_bus_fmts
Date: Sat, 1 Oct 2022 13:36:47 +0530 [thread overview]
Message-ID: <20221001080650.1007043-8-jagan@amarulasolutions.com> (raw)
In-Reply-To: <20221001080650.1007043-1-jagan@amarulasolutions.com>
Finding the right input bus format throughout the pipeline is hard
so add atomic_get_input_bus_fmts callback and initialize with the
default RGB888_1X24 bus format on DSI-end.
This format can be used in pipeline for negotiating bus format between
the DSI-end of this bridge and the other component closer to pipeline
components.
v6, v5, v4:
* none
v3:
* include media-bus-format.h
v2:
* none
v1:
* new patch
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
drivers/gpu/drm/bridge/samsung-dsim.c | 28 +++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c
index d0bb96a275fd..4fd77172bb4b 100644
--- a/drivers/gpu/drm/bridge/samsung-dsim.c
+++ b/drivers/gpu/drm/bridge/samsung-dsim.c
@@ -15,6 +15,7 @@
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/irq.h>
+#include <linux/media-bus-format.h>
#include <linux/of_device.h>
#include <linux/phy/phy.h>
@@ -1321,6 +1322,32 @@ static void samsung_dsim_atomic_post_disable(struct drm_bridge *bridge,
pm_runtime_put_sync(dsi->dev);
}
+#define MAX_INPUT_SEL_FORMATS 1
+
+static u32 *
+samsung_dsim_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
+ struct drm_bridge_state *bridge_state,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state,
+ u32 output_fmt,
+ unsigned int *num_input_fmts)
+{
+ u32 *input_fmts;
+
+ *num_input_fmts = 0;
+
+ input_fmts = kcalloc(MAX_INPUT_SEL_FORMATS, sizeof(*input_fmts),
+ GFP_KERNEL);
+ if (!input_fmts)
+ return NULL;
+
+ /* This is the DSI-end bus format */
+ input_fmts[0] = MEDIA_BUS_FMT_RGB888_1X24;
+ *num_input_fmts = 1;
+
+ return input_fmts;
+}
+
static int samsung_dsim_atomic_check(struct drm_bridge *bridge,
struct drm_bridge_state *bridge_state,
struct drm_crtc_state *crtc_state,
@@ -1384,6 +1411,7 @@ static const struct drm_bridge_funcs samsung_dsim_bridge_funcs = {
.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
.atomic_reset = drm_atomic_helper_bridge_reset,
+ .atomic_get_input_bus_fmts = samsung_dsim_atomic_get_input_bus_fmts,
.atomic_check = samsung_dsim_atomic_check,
.atomic_pre_enable = samsung_dsim_atomic_pre_enable,
.atomic_enable = samsung_dsim_atomic_enable,
--
2.25.1
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next prev parent reply other threads:[~2022-10-01 8:10 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-01 8:06 [PATCH v6 00/10] drm: bridge: Add Samsung MIPI DSIM bridge Jagan Teki
2022-10-01 8:06 ` [PATCH v6 02/10] drm: bridge: samsung-dsim: Lookup OF-graph or Child node devices Jagan Teki
2022-10-01 8:06 ` [PATCH v6 03/10] drm: bridge: samsung-dsim: Mark PHY as optional Jagan Teki
2022-10-01 8:06 ` [PATCH v6 04/10] drm: bridge: samsung-dsim: Handle proper DSI host initialization Jagan Teki
2022-10-01 8:06 ` [PATCH v6 05/10] drm: bridge: samsung-dsim: Add atomic_check Jagan Teki
2022-10-01 8:06 ` [PATCH v6 06/10] drm: bridge: samsung-dsim: Add platform PLL_P (PMS_P) offset Jagan Teki
2022-10-01 8:06 ` Jagan Teki [this message]
2022-10-01 8:06 ` [PATCH v6 08/10] drm: bridge: samsung-dsim: Add input_bus_flags Jagan Teki
2022-10-01 8:06 ` [PATCH v6 09/10] dt-bindings: display: exynos: dsim: Add NXP i.MX8MM support Jagan Teki
2022-10-01 8:06 ` [PATCH v6 10/10] drm: bridge: samsung-dsim: Add " Jagan Teki
2022-10-01 10:34 ` [PATCH v6 00/10] drm: bridge: Add Samsung MIPI DSIM bridge Fabio Estevam
2022-10-01 14:10 ` Jagan Teki
[not found] ` <CGME20221001080738eucas1p2fb82ddef1ba52646cc8f2c2f85c936da@eucas1p2.samsung.com>
[not found] ` <20221001080650.1007043-2-jagan@amarulasolutions.com>
[not found] ` <88eb9060-7240-3907-5d78-c05274d082df@samsung.com>
2022-10-04 21:00 ` [PATCH v6 01/10] drm: bridge: Add Samsung DSIM bridge driver Jagan Teki
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