linux-kernel - [Patch v2 14/20] media: ti-vpe: cal: Add AM654 support

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Date:   Mon, 4 Nov 2019 13:31:34 -0600
From:   Benoit Parrot <bparrot@...com>
To:     Hans Verkuil <hverkuil@...all.nl>
CC:     <linux-media@...r.kernel.org>, Rob Herring <robh+dt@...nel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Benoit Parrot <bparrot@...com>
Subject: [Patch v2 14/20] media: ti-vpe: cal: Add AM654 support

Add the needed control module register bit layout to support the AM654
family of devices.

Signed-off-by: Benoit Parrot <bparrot@...com>
---
 drivers/media/platform/Kconfig      |  2 +-
 drivers/media/platform/ti-vpe/cal.c | 28 +++++++++++++++++++++++++++-
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index e84f35d3a68e..995f4c67f764 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -151,7 +151,7 @@ source "drivers/media/platform/sunxi/Kconfig"
 config VIDEO_TI_CAL
 	tristate "TI CAL (Camera Adaptation Layer) driver"
 	depends on VIDEO_DEV && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
-	depends on SOC_DRA7XX || COMPILE_TEST
+	depends on SOC_DRA7XX || ARCH_K3 || COMPILE_TEST
 	select VIDEOBUF2_DMA_CONTIG
 	select V4L2_FWNODE
 	help
diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c
index 72ed2348389d..45653e9ed6cd 100644
--- a/drivers/media/platform/ti-vpe/cal.c
+++ b/drivers/media/platform/ti-vpe/cal.c
@@ -322,6 +322,26 @@ static struct cal_data dra76x_cal_data = {
 	.flags = 0,
 };
 
+static struct reg_field am654_ctrl_core_csi0_reg_fields[F_MAX_FIELDS] = {
+	[F_CTRLCLKEN] = REG_FIELD(0, 15, 15),
+	[F_CAMMODE] = REG_FIELD(0, 24, 25),
+	[F_LANEENABLE] = REG_FIELD(0, 0, 4),
+};
+
+static struct cal_csi2_phy am654_cal_csi_phy[] = {
+	{
+		.base_fields = am654_ctrl_core_csi0_reg_fields,
+		.num_lanes = 5,
+	},
+};
+
+static struct cal_data am654_cal_data = {
+	.csi2_phy_core = am654_cal_csi_phy,
+	.num_csi2_phy = ARRAY_SIZE(am654_cal_csi_phy),
+
+	.flags = 0,
+};
+
 /*
  * there is one cal_dev structure in the driver, it is shared by
  * all instances.
@@ -548,7 +568,9 @@ static void camerarx_phy_enable(struct cal_ctx *ctx)
 	/* Always enable all lanes at the phy control level */
 	max_lanes = (1 << cal_data_get_phy_max_lanes(ctx)) - 1;
 	regmap_field_write(phy->fields[F_LANEENABLE], max_lanes);
-	regmap_field_write(phy->fields[F_CSI_MODE], 1);
+	/* F_CSI_MODE is not present on every architecture */
+	if (phy->fields[F_CSI_MODE])
+		regmap_field_write(phy->fields[F_CSI_MODE], 1);
 	regmap_field_write(phy->fields[F_CTRLCLKEN], 1);
 }
 
@@ -2321,6 +2343,10 @@ static const struct of_device_id cal_of_match[] = {
 		.compatible = "ti,dra76-cal",
 		.data = (void *)&dra76x_cal_data,
 	},
+	{
+		.compatible = "ti,am654-cal",
+		.data = (void *)&am654_cal_data,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, cal_of_match);
-- 
2.17.1