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path: root/drivers/media/platform/qcom/camss/camss-vfe.c
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Diffstat (limited to 'drivers/media/platform/qcom/camss/camss-vfe.c')
-rw-r--r--drivers/media/platform/qcom/camss/camss-vfe.c2167
1 files changed, 2167 insertions, 0 deletions
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
new file mode 100644
index 000000000000..9c7ad8aa4058
--- /dev/null
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -0,0 +1,2167 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * camss-vfe.c
+ *
+ * Qualcomm MSM Camera Subsystem - VFE (Video Front End) Module
+ *
+ * Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2015-2018 Linaro Ltd.
+ */
+#include <linux/clk.h>
+#include <linux/completion.h>
+#include <linux/interrupt.h>
+#include <linux/iommu.h>
+#include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+#include <linux/pm_runtime.h>
+#include <linux/spinlock_types.h>
+#include <linux/spinlock.h>
+#include <media/media-entity.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-subdev.h>
+
+#include "camss-vfe.h"
+#include "camss.h"
+
+#define MSM_VFE_NAME "msm_vfe"
+
+/* VFE reset timeout */
+#define VFE_RESET_TIMEOUT_MS 50
+
+#define SCALER_RATIO_MAX 16
+
+#define VFE_HW_VERSION 0x0
+#define HW_VERSION_STEPPING 0
+#define HW_VERSION_REVISION 16
+#define HW_VERSION_GENERATION 28
+
+static const struct camss_format_info formats_rdi_8x16[] = {
+ { MEDIA_BUS_FMT_UYVY8_1X16, 8, V4L2_PIX_FMT_UYVY, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_VYUY8_1X16, 8, V4L2_PIX_FMT_VYUY, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_YUYV8_1X16, 8, V4L2_PIX_FMT_YUYV, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_YVYU8_1X16, 8, V4L2_PIX_FMT_YVYU, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_SBGGR8_1X8, 8, V4L2_PIX_FMT_SBGGR8, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 8) },
+ { MEDIA_BUS_FMT_SGBRG8_1X8, 8, V4L2_PIX_FMT_SGBRG8, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 8) },
+ { MEDIA_BUS_FMT_SGRBG8_1X8, 8, V4L2_PIX_FMT_SGRBG8, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 8) },
+ { MEDIA_BUS_FMT_SRGGB8_1X8, 8, V4L2_PIX_FMT_SRGGB8, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 8) },
+ { MEDIA_BUS_FMT_SBGGR10_1X10, 10, V4L2_PIX_FMT_SBGGR10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+ { MEDIA_BUS_FMT_SGBRG10_1X10, 10, V4L2_PIX_FMT_SGBRG10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+ { MEDIA_BUS_FMT_SGRBG10_1X10, 10, V4L2_PIX_FMT_SGRBG10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+ { MEDIA_BUS_FMT_SRGGB10_1X10, 10, V4L2_PIX_FMT_SRGGB10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+ { MEDIA_BUS_FMT_SBGGR12_1X12, 12, V4L2_PIX_FMT_SBGGR12P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 12) },
+ { MEDIA_BUS_FMT_SGBRG12_1X12, 12, V4L2_PIX_FMT_SGBRG12P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 12) },
+ { MEDIA_BUS_FMT_SGRBG12_1X12, 12, V4L2_PIX_FMT_SGRBG12P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 12) },
+ { MEDIA_BUS_FMT_SRGGB12_1X12, 12, V4L2_PIX_FMT_SRGGB12P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 12) },
+ { MEDIA_BUS_FMT_Y10_1X10, 10, V4L2_PIX_FMT_Y10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+};
+
+static const struct camss_format_info formats_rdi_8x96[] = {
+ { MEDIA_BUS_FMT_UYVY8_1X16, 8, V4L2_PIX_FMT_UYVY, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_VYUY8_1X16, 8, V4L2_PIX_FMT_VYUY, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_YUYV8_1X16, 8, V4L2_PIX_FMT_YUYV, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_YVYU8_1X16, 8, V4L2_PIX_FMT_YVYU, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_SBGGR8_1X8, 8, V4L2_PIX_FMT_SBGGR8, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 8) },
+ { MEDIA_BUS_FMT_SGBRG8_1X8, 8, V4L2_PIX_FMT_SGBRG8, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 8) },
+ { MEDIA_BUS_FMT_SGRBG8_1X8, 8, V4L2_PIX_FMT_SGRBG8, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 8) },
+ { MEDIA_BUS_FMT_SRGGB8_1X8, 8, V4L2_PIX_FMT_SRGGB8, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 8) },
+ { MEDIA_BUS_FMT_SBGGR10_1X10, 10, V4L2_PIX_FMT_SBGGR10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+ { MEDIA_BUS_FMT_SGBRG10_1X10, 10, V4L2_PIX_FMT_SGBRG10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+ { MEDIA_BUS_FMT_SGRBG10_1X10, 10, V4L2_PIX_FMT_SGRBG10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+ { MEDIA_BUS_FMT_SRGGB10_1X10, 10, V4L2_PIX_FMT_SRGGB10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+ { MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, 16, V4L2_PIX_FMT_SBGGR10, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_SBGGR12_1X12, 12, V4L2_PIX_FMT_SBGGR12P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 12) },
+ { MEDIA_BUS_FMT_SGBRG12_1X12, 12, V4L2_PIX_FMT_SGBRG12P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 12) },
+ { MEDIA_BUS_FMT_SGRBG12_1X12, 12, V4L2_PIX_FMT_SGRBG12P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 12) },
+ { MEDIA_BUS_FMT_SRGGB12_1X12, 12, V4L2_PIX_FMT_SRGGB12P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 12) },
+ { MEDIA_BUS_FMT_SBGGR14_1X14, 14, V4L2_PIX_FMT_SBGGR14P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 14) },
+ { MEDIA_BUS_FMT_SGBRG14_1X14, 14, V4L2_PIX_FMT_SGBRG14P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 14) },
+ { MEDIA_BUS_FMT_SGRBG14_1X14, 14, V4L2_PIX_FMT_SGRBG14P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 14) },
+ { MEDIA_BUS_FMT_SRGGB14_1X14, 14, V4L2_PIX_FMT_SRGGB14P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 14) },
+ { MEDIA_BUS_FMT_Y10_1X10, 10, V4L2_PIX_FMT_Y10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+ { MEDIA_BUS_FMT_Y10_2X8_PADHI_LE, 16, V4L2_PIX_FMT_Y10, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+};
+
+static const struct camss_format_info formats_rdi_845[] = {
+ { MEDIA_BUS_FMT_UYVY8_1X16, 8, V4L2_PIX_FMT_UYVY, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_VYUY8_1X16, 8, V4L2_PIX_FMT_VYUY, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_YUYV8_1X16, 8, V4L2_PIX_FMT_YUYV, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_YVYU8_1X16, 8, V4L2_PIX_FMT_YVYU, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_SBGGR8_1X8, 8, V4L2_PIX_FMT_SBGGR8, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 8) },
+ { MEDIA_BUS_FMT_SGBRG8_1X8, 8, V4L2_PIX_FMT_SGBRG8, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 8) },
+ { MEDIA_BUS_FMT_SGRBG8_1X8, 8, V4L2_PIX_FMT_SGRBG8, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 8) },
+ { MEDIA_BUS_FMT_SRGGB8_1X8, 8, V4L2_PIX_FMT_SRGGB8, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 8) },
+ { MEDIA_BUS_FMT_SBGGR10_1X10, 10, V4L2_PIX_FMT_SBGGR10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+ { MEDIA_BUS_FMT_SGBRG10_1X10, 10, V4L2_PIX_FMT_SGBRG10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+ { MEDIA_BUS_FMT_SGRBG10_1X10, 10, V4L2_PIX_FMT_SGRBG10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+ { MEDIA_BUS_FMT_SRGGB10_1X10, 10, V4L2_PIX_FMT_SRGGB10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+ { MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, 16, V4L2_PIX_FMT_SBGGR10, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_SBGGR12_1X12, 12, V4L2_PIX_FMT_SBGGR12P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 12) },
+ { MEDIA_BUS_FMT_SGBRG12_1X12, 12, V4L2_PIX_FMT_SGBRG12P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 12) },
+ { MEDIA_BUS_FMT_SGRBG12_1X12, 12, V4L2_PIX_FMT_SGRBG12P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 12) },
+ { MEDIA_BUS_FMT_SRGGB12_1X12, 12, V4L2_PIX_FMT_SRGGB12P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 12) },
+ { MEDIA_BUS_FMT_SBGGR14_1X14, 14, V4L2_PIX_FMT_SBGGR14P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 14) },
+ { MEDIA_BUS_FMT_SGBRG14_1X14, 14, V4L2_PIX_FMT_SGBRG14P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 14) },
+ { MEDIA_BUS_FMT_SGRBG14_1X14, 14, V4L2_PIX_FMT_SGRBG14P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 14) },
+ { MEDIA_BUS_FMT_SRGGB14_1X14, 14, V4L2_PIX_FMT_SRGGB14P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 14) },
+ { MEDIA_BUS_FMT_Y8_1X8, 8, V4L2_PIX_FMT_GREY, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 8) },
+ { MEDIA_BUS_FMT_Y10_1X10, 10, V4L2_PIX_FMT_Y10P, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 10) },
+ { MEDIA_BUS_FMT_Y10_2X8_PADHI_LE, 16, V4L2_PIX_FMT_Y10, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+};
+
+static const struct camss_format_info formats_pix_8x16[] = {
+ { MEDIA_BUS_FMT_YUYV8_1_5X8, 8, V4L2_PIX_FMT_NV12, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_YVYU8_1_5X8, 8, V4L2_PIX_FMT_NV12, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_UYVY8_1_5X8, 8, V4L2_PIX_FMT_NV12, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_VYUY8_1_5X8, 8, V4L2_PIX_FMT_NV12, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_YUYV8_1_5X8, 8, V4L2_PIX_FMT_NV21, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_YVYU8_1_5X8, 8, V4L2_PIX_FMT_NV21, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_UYVY8_1_5X8, 8, V4L2_PIX_FMT_NV21, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_VYUY8_1_5X8, 8, V4L2_PIX_FMT_NV21, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_YUYV8_1X16, 8, V4L2_PIX_FMT_NV16, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_YVYU8_1X16, 8, V4L2_PIX_FMT_NV16, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_UYVY8_1X16, 8, V4L2_PIX_FMT_NV16, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_VYUY8_1X16, 8, V4L2_PIX_FMT_NV16, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_YUYV8_1X16, 8, V4L2_PIX_FMT_NV61, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_YVYU8_1X16, 8, V4L2_PIX_FMT_NV61, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_UYVY8_1X16, 8, V4L2_PIX_FMT_NV61, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_VYUY8_1X16, 8, V4L2_PIX_FMT_NV61, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+};
+
+static const struct camss_format_info formats_pix_8x96[] = {
+ { MEDIA_BUS_FMT_YUYV8_1_5X8, 8, V4L2_PIX_FMT_NV12, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_YVYU8_1_5X8, 8, V4L2_PIX_FMT_NV12, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_UYVY8_1_5X8, 8, V4L2_PIX_FMT_NV12, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_VYUY8_1_5X8, 8, V4L2_PIX_FMT_NV12, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_YUYV8_1_5X8, 8, V4L2_PIX_FMT_NV21, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_YVYU8_1_5X8, 8, V4L2_PIX_FMT_NV21, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_UYVY8_1_5X8, 8, V4L2_PIX_FMT_NV21, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_VYUY8_1_5X8, 8, V4L2_PIX_FMT_NV21, 1,
+ PER_PLANE_DATA(0, 1, 1, 2, 3, 8) },
+ { MEDIA_BUS_FMT_YUYV8_1X16, 8, V4L2_PIX_FMT_NV16, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_YVYU8_1X16, 8, V4L2_PIX_FMT_NV16, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_UYVY8_1X16, 8, V4L2_PIX_FMT_NV16, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_VYUY8_1X16, 8, V4L2_PIX_FMT_NV16, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_YUYV8_1X16, 8, V4L2_PIX_FMT_NV61, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_YVYU8_1X16, 8, V4L2_PIX_FMT_NV61, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_UYVY8_1X16, 8, V4L2_PIX_FMT_NV61, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_VYUY8_1X16, 8, V4L2_PIX_FMT_NV61, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 2, 8) },
+ { MEDIA_BUS_FMT_UYVY8_1X16, 8, V4L2_PIX_FMT_UYVY, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_VYUY8_1X16, 8, V4L2_PIX_FMT_VYUY, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_YUYV8_1X16, 8, V4L2_PIX_FMT_YUYV, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+ { MEDIA_BUS_FMT_YVYU8_1X16, 8, V4L2_PIX_FMT_YVYU, 1,
+ PER_PLANE_DATA(0, 1, 1, 1, 1, 16) },
+};
+
+const struct camss_formats vfe_formats_rdi_8x16 = {
+ .nformats = ARRAY_SIZE(formats_rdi_8x16),
+ .formats = formats_rdi_8x16
+};
+
+const struct camss_formats vfe_formats_pix_8x16 = {
+ .nformats = ARRAY_SIZE(formats_pix_8x16),
+ .formats = formats_pix_8x16
+};
+
+const struct camss_formats vfe_formats_rdi_8x96 = {
+ .nformats = ARRAY_SIZE(formats_rdi_8x96),
+ .formats = formats_rdi_8x96
+};
+
+const struct camss_formats vfe_formats_pix_8x96 = {
+ .nformats = ARRAY_SIZE(formats_pix_8x96),
+ .formats = formats_pix_8x96
+};
+
+const struct camss_formats vfe_formats_rdi_845 = {
+ .nformats = ARRAY_SIZE(formats_rdi_845),
+ .formats = formats_rdi_845
+};
+
+/* TODO: Replace with pix formats */
+const struct camss_formats vfe_formats_pix_845 = {
+ .nformats = ARRAY_SIZE(formats_rdi_845),
+ .formats = formats_rdi_845
+};
+
+static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code,
+ unsigned int index, u32 src_req_code)
+{
+ struct vfe_device *vfe = to_vfe(line);
+
+ switch (vfe->camss->res->version) {
+ case CAMSS_8x16:
+ case CAMSS_8x39:
+ case CAMSS_8x53:
+ switch (sink_code) {
+ case MEDIA_BUS_FMT_YUYV8_1X16:
+ {
+ u32 src_code[] = {
+ MEDIA_BUS_FMT_YUYV8_1X16,
+ MEDIA_BUS_FMT_YUYV8_1_5X8,
+ };
+
+ return camss_format_find_code(src_code, ARRAY_SIZE(src_code),
+ index, src_req_code);
+ }
+ case MEDIA_BUS_FMT_YVYU8_1X16:
+ {
+ u32 src_code[] = {
+ MEDIA_BUS_FMT_YVYU8_1X16,
+ MEDIA_BUS_FMT_YVYU8_1_5X8,
+ };
+
+ return camss_format_find_code(src_code, ARRAY_SIZE(src_code),
+ index, src_req_code);
+ }
+ case MEDIA_BUS_FMT_UYVY8_1X16:
+ {
+ u32 src_code[] = {
+ MEDIA_BUS_FMT_UYVY8_1X16,
+ MEDIA_BUS_FMT_UYVY8_1_5X8,
+ };
+
+ return camss_format_find_code(src_code, ARRAY_SIZE(src_code),
+ index, src_req_code);
+ }
+ case MEDIA_BUS_FMT_VYUY8_1X16:
+ {
+ u32 src_code[] = {
+ MEDIA_BUS_FMT_VYUY8_1X16,
+ MEDIA_BUS_FMT_VYUY8_1_5X8,
+ };
+
+ return camss_format_find_code(src_code, ARRAY_SIZE(src_code),
+ index, src_req_code);
+ }
+ default:
+ if (index > 0)
+ return 0;
+
+ return sink_code;
+ }
+ break;
+ case CAMSS_660:
+ case CAMSS_2290:
+ case CAMSS_7280:
+ case CAMSS_8x96:
+ case CAMSS_8250:
+ case CAMSS_8280XP:
+ case CAMSS_8300:
+ case CAMSS_845:
+ case CAMSS_8550:
+ case CAMSS_8650:
+ case CAMSS_8775P:
+ case CAMSS_X1E80100:
+ switch (sink_code) {
+ case MEDIA_BUS_FMT_YUYV8_1X16:
+ {
+ u32 src_code[] = {
+ MEDIA_BUS_FMT_YUYV8_1X16,
+ MEDIA_BUS_FMT_YVYU8_1X16,
+ MEDIA_BUS_FMT_UYVY8_1X16,
+ MEDIA_BUS_FMT_VYUY8_1X16,
+ MEDIA_BUS_FMT_YUYV8_1_5X8,
+ };
+
+ return camss_format_find_code(src_code, ARRAY_SIZE(src_code),
+ index, src_req_code);
+ }
+ case MEDIA_BUS_FMT_YVYU8_1X16:
+ {
+ u32 src_code[] = {
+ MEDIA_BUS_FMT_YVYU8_1X16,
+ MEDIA_BUS_FMT_YUYV8_1X16,
+ MEDIA_BUS_FMT_UYVY8_1X16,
+ MEDIA_BUS_FMT_VYUY8_1X16,
+ MEDIA_BUS_FMT_YVYU8_1_5X8,
+ };
+
+ return camss_format_find_code(src_code, ARRAY_SIZE(src_code),
+ index, src_req_code);
+ }
+ case MEDIA_BUS_FMT_UYVY8_1X16:
+ {
+ u32 src_code[] = {
+ MEDIA_BUS_FMT_UYVY8_1X16,
+ MEDIA_BUS_FMT_YUYV8_1X16,
+ MEDIA_BUS_FMT_YVYU8_1X16,
+ MEDIA_BUS_FMT_VYUY8_1X16,
+ MEDIA_BUS_FMT_UYVY8_1_5X8,
+ };
+
+ return camss_format_find_code(src_code, ARRAY_SIZE(src_code),
+ index, src_req_code);
+ }
+ case MEDIA_BUS_FMT_VYUY8_1X16:
+ {
+ u32 src_code[] = {
+ MEDIA_BUS_FMT_VYUY8_1X16,
+ MEDIA_BUS_FMT_YUYV8_1X16,
+ MEDIA_BUS_FMT_YVYU8_1X16,
+ MEDIA_BUS_FMT_UYVY8_1X16,
+ MEDIA_BUS_FMT_VYUY8_1_5X8,
+ };
+
+ return camss_format_find_code(src_code, ARRAY_SIZE(src_code),
+ index, src_req_code);
+ }
+ default:
+ if (index > 0)
+ return 0;
+
+ return sink_code;
+ }
+ break;
+ default:
+ WARN(1, "Unsupported HW version: %x\n",
+ vfe->camss->res->version);
+ break;
+ }
+ return 0;
+}
+
+/*
+ * vfe_hw_version - Process write master done interrupt
+ * @vfe: VFE Device
+ *
+ * Return vfe hw version
+ */
+u32 vfe_hw_version(struct vfe_device *vfe)
+{
+ u32 hw_version = readl_relaxed(vfe->base + VFE_HW_VERSION);
+
+ u32 gen = (hw_version >> HW_VERSION_GENERATION) & 0xF;
+ u32 rev = (hw_version >> HW_VERSION_REVISION) & 0xFFF;
+ u32 step = (hw_version >> HW_VERSION_STEPPING) & 0xFFFF;
+
+ dev_dbg(vfe->camss->dev, "VFE:%d HW Version = %u.%u.%u\n",
+ vfe->id, gen, rev, step);
+
+ return hw_version;
+}
+
+/*
+ * vfe_buf_done - Process write master done interrupt
+ * @vfe: VFE Device
+ * @wm: Write master id
+ */
+void vfe_buf_done(struct vfe_device *vfe, int wm)
+{
+ struct vfe_line *line = &vfe->line[vfe->wm_output_map[wm]];
+ const struct vfe_hw_ops *ops = vfe->res->hw_ops;
+ struct camss_buffer *ready_buf;
+ struct vfe_output *output;
+ unsigned long flags;
+ u32 index;
+ u64 ts = ktime_get_ns();
+
+ spin_lock_irqsave(&vfe->output_lock, flags);
+
+ if (vfe->wm_output_map[wm] == VFE_LINE_NONE) {
+ dev_err_ratelimited(vfe->camss->dev,
+ "Received wm done for unmapped index\n");
+ goto out_unlock;
+ }
+ output = &vfe->line[vfe->wm_output_map[wm]].output;
+
+ ready_buf = output->buf[0];
+ if (!ready_buf) {
+ dev_err_ratelimited(vfe->camss->dev,
+ "Missing ready buf %d!\n", output->state);
+ goto out_unlock;
+ }
+
+ ready_buf->vb.vb2_buf.timestamp = ts;
+ ready_buf->vb.sequence = output->sequence++;
+
+ index = 0;
+ output->buf[0] = output->buf[1];
+ if (output->buf[0])
+ index = 1;
+
+ output->buf[index] = vfe_buf_get_pending(output);
+
+ if (output->buf[index]) {
+ ops->vfe_wm_update(vfe, output->wm_idx[0],
+ output->buf[index]->addr[0],
+ line);
+ ops->reg_update(vfe, line->id);
+ } else {
+ output->gen2.active_num--;
+ }
+
+ spin_unlock_irqrestore(&vfe->output_lock, flags);
+
+ vb2_buffer_done(&ready_buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
+
+ return;
+
+out_unlock:
+ spin_unlock_irqrestore(&vfe->output_lock, flags);
+}
+
+int vfe_enable_output_v2(struct vfe_line *line)
+{
+ struct vfe_device *vfe = to_vfe(line);
+ struct vfe_output *output = &line->output;
+ const struct vfe_hw_ops *ops = vfe->res->hw_ops;
+ struct media_pad *sensor_pad;
+ unsigned long flags;
+ unsigned int frame_skip = 0;
+ unsigned int i;
+
+ sensor_pad = camss_find_sensor_pad(&line->subdev.entity);
+ if (sensor_pad) {
+ struct v4l2_subdev *subdev =
+ media_entity_to_v4l2_subdev(sensor_pad->entity);
+
+ v4l2_subdev_call(subdev, sensor, g_skip_frames, &frame_skip);
+ /* Max frame skip is 29 frames */
+ if (frame_skip > VFE_FRAME_DROP_VAL - 1)
+ frame_skip = VFE_FRAME_DROP_VAL - 1;
+ }
+
+ spin_lock_irqsave(&vfe->output_lock, flags);
+
+ ops->reg_update_clear(vfe, line->id);
+
+ if (output->state > VFE_OUTPUT_RESERVED) {
+ dev_err(vfe->camss->dev,
+ "Output is not in reserved state %d\n",
+ output->state);
+ spin_unlock_irqrestore(&vfe->output_lock, flags);
+ return -EINVAL;
+ }
+
+ WARN_ON(output->gen2.active_num);
+
+ output->state = VFE_OUTPUT_ON;
+
+ output->sequence = 0;
+ output->wait_reg_update = 0;
+ reinit_completion(&output->reg_update);
+
+ ops->vfe_wm_start(vfe, output->wm_idx[0], line);
+
+ for (i = 0; i < CAMSS_INIT_BUF_COUNT; i++) {
+ output->buf[i] = vfe_buf_get_pending(output);
+ if (!output->buf[i])
+ break;
+ output->gen2.active_num++;
+ ops->vfe_wm_update(vfe, output->wm_idx[0],
+ output->buf[i]->addr[0], line);
+ ops->reg_update(vfe, line->id);
+ }
+
+ spin_unlock_irqrestore(&vfe->output_lock, flags);
+
+ return 0;
+}
+
+/*
+ * vfe_queue_buffer_v2 - Add empty buffer
+ * @vid: Video device structure
+ * @buf: Buffer to be enqueued
+ *
+ * Add an empty buffer - depending on the current number of buffers it will be
+ * put in pending buffer queue or directly given to the hardware to be filled.
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+int vfe_queue_buffer_v2(struct camss_video *vid,
+ struct camss_buffer *buf)
+{
+ struct vfe_line *line = container_of(vid, struct vfe_line, video_out);
+ struct vfe_device *vfe = to_vfe(line);
+ const struct vfe_hw_ops *ops = vfe->res->hw_ops;
+ struct vfe_output *output;
+ unsigned long flags;
+
+ output = &line->output;
+
+ spin_lock_irqsave(&vfe->output_lock, flags);
+
+ if (output->state == VFE_OUTPUT_ON &&
+ output->gen2.active_num < 2) {
+ output->buf[output->gen2.active_num++] = buf;
+ ops->vfe_wm_update(vfe, output->wm_idx[0],
+ buf->addr[0], line);
+ ops->reg_update(vfe, line->id);
+ } else {
+ vfe_buf_add_pending(output, buf);
+ }
+
+ spin_unlock_irqrestore(&vfe->output_lock, flags);
+
+ return 0;
+}
+
+/*
+ * vfe_enable_v2 - Enable streaming on VFE line
+ * @line: VFE line
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+int vfe_enable_v2(struct vfe_line *line)
+{
+ struct vfe_device *vfe = to_vfe(line);
+ const struct vfe_hw_ops *ops = vfe->res->hw_ops;
+ int ret;
+
+ mutex_lock(&vfe->stream_lock);
+
+ if (vfe->res->hw_ops->enable_irq)
+ ops->enable_irq(vfe);
+
+ vfe->stream_count++;
+
+ mutex_unlock(&vfe->stream_lock);
+
+ ret = vfe_get_output_v2(line);
+ if (ret < 0)
+ goto error_get_output;
+
+ ret = vfe_enable_output_v2(line);
+ if (ret < 0)
+ goto error_enable_output;
+
+ vfe->was_streaming = 1;
+
+ return 0;
+
+error_enable_output:
+ vfe_put_output(line);
+
+error_get_output:
+ mutex_lock(&vfe->stream_lock);
+
+ vfe->stream_count--;
+
+ mutex_unlock(&vfe->stream_lock);
+
+ return ret;
+}
+
+/*
+ * vfe_get_output_v2 - Get vfe output port for corresponding VFE line
+ * @line: VFE line
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+int vfe_get_output_v2(struct vfe_line *line)
+{
+ struct vfe_device *vfe = to_vfe(line);
+ struct vfe_output *output;
+ unsigned long flags;
+
+ spin_lock_irqsave(&vfe->output_lock, flags);
+
+ output = &line->output;
+ if (output->state > VFE_OUTPUT_RESERVED) {
+ dev_err(vfe->camss->dev, "Output is running\n");
+ goto error;
+ }
+
+ output->wm_num = 1;
+
+ /* Correspondence between VFE line number and WM number.
+ * line 0 -> RDI 0, line 1 -> RDI1, line 2 -> RDI2, line 3 -> PIX/RDI3
+ * Note this 1:1 mapping will not work for PIX streams.
+ */
+ output->wm_idx[0] = line->id;
+ vfe->wm_output_map[line->id] = line->id;
+
+ output->drop_update_idx = 0;
+
+ spin_unlock_irqrestore(&vfe->output_lock, flags);
+
+ return 0;
+
+error:
+ spin_unlock_irqrestore(&vfe->output_lock, flags);
+ output->state = VFE_OUTPUT_OFF;
+
+ return -EINVAL;
+}
+
+int vfe_reset(struct vfe_device *vfe)
+{
+ unsigned long time;
+
+ reinit_completion(&vfe->reset_complete);
+
+ vfe->res->hw_ops->global_reset(vfe);
+
+ time = wait_for_completion_timeout(&vfe->reset_complete,
+ msecs_to_jiffies(VFE_RESET_TIMEOUT_MS));
+ if (!time) {
+ dev_err(vfe->camss->dev, "VFE reset timeout\n");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static void vfe_init_outputs(struct vfe_device *vfe)
+{
+ int i;
+
+ for (i = 0; i < vfe->res->line_num; i++) {
+ struct vfe_output *output = &vfe->line[i].output;
+
+ output->state = VFE_OUTPUT_OFF;
+ output->buf[0] = NULL;
+ output->buf[1] = NULL;
+ INIT_LIST_HEAD(&output->pending_bufs);
+ }
+}
+
+static void vfe_reset_output_maps(struct vfe_device *vfe)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(vfe->wm_output_map); i++)
+ vfe->wm_output_map[i] = VFE_LINE_NONE;
+}
+
+int vfe_reserve_wm(struct vfe_device *vfe, enum vfe_line_id line_id)
+{
+ int ret = -EBUSY;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(vfe->wm_output_map); i++) {
+ if (vfe->wm_output_map[i] == VFE_LINE_NONE) {
+ vfe->wm_output_map[i] = line_id;
+ ret = i;
+ break;
+ }
+ }
+
+ return ret;
+}
+
+int vfe_release_wm(struct vfe_device *vfe, u8 wm)
+{
+ if (wm >= ARRAY_SIZE(vfe->wm_output_map))
+ return -EINVAL;
+
+ vfe->wm_output_map[wm] = VFE_LINE_NONE;
+
+ return 0;
+}
+
+struct camss_buffer *vfe_buf_get_pending(struct vfe_output *output)
+{
+ struct camss_buffer *buffer = NULL;
+
+ if (!list_empty(&output->pending_bufs)) {
+ buffer = list_first_entry(&output->pending_bufs,
+ struct camss_buffer,
+ queue);
+ list_del(&buffer->queue);
+ }
+
+ return buffer;
+}
+
+void vfe_buf_add_pending(struct vfe_output *output,
+ struct camss_buffer *buffer)
+{
+ INIT_LIST_HEAD(&buffer->queue);
+ list_add_tail(&buffer->queue, &output->pending_bufs);
+}
+
+/*
+ * vfe_buf_flush_pending - Flush all pending buffers.
+ * @output: VFE output
+ * @state: vb2 buffer state
+ */
+static void vfe_buf_flush_pending(struct vfe_output *output,
+ enum vb2_buffer_state state)
+{
+ struct camss_buffer *buf;
+ struct camss_buffer *t;
+
+ list_for_each_entry_safe(buf, t, &output->pending_bufs, queue) {
+ vb2_buffer_done(&buf->vb.vb2_buf, state);
+ list_del(&buf->queue);
+ }
+}
+
+int vfe_put_output(struct vfe_line *line)
+{
+ struct vfe_device *vfe = to_vfe(line);
+ struct vfe_output *output = &line->output;
+ unsigned long flags;
+ unsigned int i;
+
+ spin_lock_irqsave(&vfe->output_lock, flags);
+
+ for (i = 0; i < output->wm_num; i++)
+ vfe_release_wm(vfe, output->wm_idx[i]);
+
+ output->state = VFE_OUTPUT_OFF;
+
+ spin_unlock_irqrestore(&vfe->output_lock, flags);
+ return 0;
+}
+
+static int vfe_disable_output(struct vfe_line *line)
+{
+ struct vfe_device *vfe = to_vfe(line);
+ struct vfe_output *output = &line->output;
+ unsigned long flags;
+ unsigned int i;
+
+ spin_lock_irqsave(&vfe->output_lock, flags);
+ for (i = 0; i < output->wm_num; i++)
+ vfe->res->hw_ops->vfe_wm_stop(vfe, output->wm_idx[i]);
+ output->gen2.active_num = 0;
+ spin_unlock_irqrestore(&vfe->output_lock, flags);
+
+ return vfe_reset(vfe);
+}
+
+/*
+ * vfe_disable - Disable streaming on VFE line
+ * @line: VFE line
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+int vfe_disable(struct vfe_line *line)
+{
+ struct vfe_device *vfe = to_vfe(line);
+ int ret;
+
+ ret = vfe_disable_output(line);
+ if (ret)
+ goto error;
+
+ vfe_put_output(line);
+
+ mutex_lock(&vfe->stream_lock);
+
+ vfe->stream_count--;
+
+ mutex_unlock(&vfe->stream_lock);
+
+error:
+ return ret;
+}
+
+/**
+ * vfe_isr_comp_done() - Process composite image done interrupt
+ * @vfe: VFE Device
+ * @comp: Composite image id
+ */
+void vfe_isr_comp_done(struct vfe_device *vfe, u8 comp)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(vfe->wm_output_map); i++)
+ if (vfe->wm_output_map[i] == VFE_LINE_PIX) {
+ vfe->isr_ops.wm_done(vfe, i);
+ break;
+ }
+}
+
+void vfe_isr_reset_ack(struct vfe_device *vfe)
+{
+ complete(&vfe->reset_complete);
+}
+
+/*
+ * vfe_pm_domain_off - Disable power domains specific to this VFE.
+ * @vfe: VFE Device
+ */
+void vfe_pm_domain_off(struct vfe_device *vfe)
+{
+ if (!vfe->genpd)
+ return;
+
+ device_link_del(vfe->genpd_link);
+ vfe->genpd_link = NULL;
+}
+
+/*
+ * vfe_pm_domain_on - Enable power domains specific to this VFE.
+ * @vfe: VFE Device
+ */
+int vfe_pm_domain_on(struct vfe_device *vfe)
+{
+ struct camss *camss = vfe->camss;
+
+ if (!vfe->genpd)
+ return 0;
+
+ vfe->genpd_link = device_link_add(camss->dev, vfe->genpd,
+ DL_FLAG_STATELESS |
+ DL_FLAG_PM_RUNTIME |
+ DL_FLAG_RPM_ACTIVE);
+ if (!vfe->genpd_link)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int vfe_match_clock_names(struct vfe_device *vfe,
+ struct camss_clock *clock)
+{
+ char vfe_name[7]; /* vfeXXX\0 */
+ char vfe_lite_name[12]; /* vfe_liteXXX\0 */
+
+ snprintf(vfe_name, sizeof(vfe_name), "vfe%d", vfe->id);
+ snprintf(vfe_lite_name, sizeof(vfe_lite_name), "vfe_lite%d", vfe->id);
+
+ return (!strcmp(clock->name, vfe_name) ||
+ !strcmp(clock->name, vfe_lite_name) ||
+ !strcmp(clock->name, "vfe_lite") ||
+ !strcmp(clock->name, "camnoc_axi") ||
+ !strcmp(clock->name, "camnoc_rt_axi"));
+}
+
+/*
+ * vfe_check_clock_levels - Calculate and set clock rates on VFE module
+ * @clock: clocks data
+ *
+ * Return false if there is no non-zero clock level and true otherwise.
+ */
+static bool vfe_check_clock_levels(struct camss_clock *clock)
+{
+ int i;
+
+ for (i = 0; i < clock->nfreqs; i++)
+ if (clock->freq[i])
+ return true;
+ return false;
+}
+
+/*
+ * vfe_set_clock_rates - Calculate and set clock rates on VFE module
+ * @vfe: VFE device
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+static int vfe_set_clock_rates(struct vfe_device *vfe)
+{
+ struct device *dev = vfe->camss->dev;
+ u64 pixel_clock[VFE_LINE_NUM_MAX];
+ int i, j;
+ int ret;
+
+ for (i = VFE_LINE_RDI0; i < vfe->res->line_num; i++) {
+ ret = camss_get_pixel_clock(&vfe->line[i].subdev.entity,
+ &pixel_clock[i]);
+ if (ret)
+ pixel_clock[i] = 0;
+ }
+
+ for (i = 0; i < vfe->nclocks; i++) {
+ struct camss_clock *clock = &vfe->clock[i];
+
+ if (vfe_match_clock_names(vfe, clock) && vfe_check_clock_levels(clock)) {
+ u64 min_rate = 0;
+ long rate;
+
+ for (j = VFE_LINE_RDI0; j < vfe->res->line_num; j++) {
+ u32 tmp;
+ u8 bpp;
+
+ if (j == VFE_LINE_PIX) {
+ tmp = pixel_clock[j];
+ } else {
+ struct vfe_line *l = &vfe->line[j];
+
+ bpp = camss_format_get_bpp(l->formats,
+ l->nformats,
+ l->fmt[MSM_VFE_PAD_SINK].code);
+ tmp = pixel_clock[j] * bpp / 64;
+ }
+
+ if (min_rate < tmp)
+ min_rate = tmp;
+ }
+
+ camss_add_clock_margin(&min_rate);
+
+ for (j = 0; j < clock->nfreqs; j++)
+ if (min_rate < clock->freq[j])
+ break;
+
+ if (j == clock->nfreqs) {
+ dev_err(dev,
+ "Pixel clock is too high for VFE");
+ return -EINVAL;
+ }
+
+ /* if sensor pixel clock is not available */
+ /* set highest possible VFE clock rate */
+ if (min_rate == 0)
+ j = clock->nfreqs - 1;
+
+ rate = clk_round_rate(clock->clk, clock->freq[j]);
+ if (rate < 0) {
+ dev_err(dev, "clk round rate failed: %ld\n",
+ rate);
+ return -EINVAL;
+ }
+
+ ret = clk_set_rate(clock->clk, rate);
+ if (ret < 0) {
+ dev_err(dev, "clk set rate failed: %d\n", ret);
+ return ret;
+ }
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * vfe_check_clock_rates - Check current clock rates on VFE module
+ * @vfe: VFE device
+ *
+ * Return 0 if current clock rates are suitable for a new pipeline
+ * or a negative error code otherwise
+ */
+static int vfe_check_clock_rates(struct vfe_device *vfe)
+{
+ u64 pixel_clock[VFE_LINE_NUM_MAX];
+ int i, j;
+ int ret;
+
+ for (i = VFE_LINE_RDI0; i < vfe->res->line_num; i++) {
+ ret = camss_get_pixel_clock(&vfe->line[i].subdev.entity,
+ &pixel_clock[i]);
+ if (ret)
+ pixel_clock[i] = 0;
+ }
+
+ for (i = 0; i < vfe->nclocks; i++) {
+ struct camss_clock *clock = &vfe->clock[i];
+
+ if (vfe_match_clock_names(vfe, clock) && vfe_check_clock_levels(clock)) {
+ u64 min_rate = 0;
+ unsigned long rate;
+
+ for (j = VFE_LINE_RDI0; j < vfe->res->line_num; j++) {
+ u32 tmp;
+ u8 bpp;
+
+ if (j == VFE_LINE_PIX) {
+ tmp = pixel_clock[j];
+ } else {
+ struct vfe_line *l = &vfe->line[j];
+
+ bpp = camss_format_get_bpp(l->formats,
+ l->nformats,
+ l->fmt[MSM_VFE_PAD_SINK].code);
+ tmp = pixel_clock[j] * bpp / 64;
+ }
+
+ if (min_rate < tmp)
+ min_rate = tmp;
+ }
+
+ camss_add_clock_margin(&min_rate);
+
+ rate = clk_get_rate(clock->clk);
+ if (rate < min_rate)
+ return -EBUSY;
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * vfe_get - Power up and reset VFE module
+ * @vfe: VFE Device
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+int vfe_get(struct vfe_device *vfe)
+{
+ int ret;
+
+ mutex_lock(&vfe->power_lock);
+
+ if (vfe->power_count == 0) {
+ ret = vfe->res->hw_ops->pm_domain_on(vfe);
+ if (ret < 0)
+ goto error_pm_domain;
+
+ ret = pm_runtime_resume_and_get(vfe->camss->dev);
+ if (ret < 0)
+ goto error_domain_off;
+
+ ret = vfe_set_clock_rates(vfe);
+ if (ret < 0)
+ goto error_pm_runtime_get;
+
+ ret = camss_enable_clocks(vfe->nclocks, vfe->clock,
+ vfe->camss->dev);
+ if (ret < 0)
+ goto error_pm_runtime_get;
+
+ ret = vfe_reset(vfe);
+ if (ret < 0)
+ goto error_reset;
+
+ vfe_reset_output_maps(vfe);
+
+ vfe_init_outputs(vfe);
+
+ vfe->res->hw_ops->hw_version(vfe);
+ } else {
+ ret = vfe_check_clock_rates(vfe);
+ if (ret < 0)
+ goto error_pm_domain;
+ }
+ vfe->power_count++;
+
+ mutex_unlock(&vfe->power_lock);
+
+ return 0;
+
+error_reset:
+ camss_disable_clocks(vfe->nclocks, vfe->clock);
+
+error_pm_runtime_get:
+ pm_runtime_put_sync(vfe->camss->dev);
+error_domain_off:
+ vfe->res->hw_ops->pm_domain_off(vfe);
+
+error_pm_domain:
+ mutex_unlock(&vfe->power_lock);
+
+ return ret;
+}
+
+/*
+ * vfe_put - Power down VFE module
+ * @vfe: VFE Device
+ */
+void vfe_put(struct vfe_device *vfe)
+{
+ mutex_lock(&vfe->power_lock);
+
+ if (vfe->power_count == 0) {
+ dev_err(vfe->camss->dev, "vfe power off on power_count == 0\n");
+ goto exit;
+ } else if (vfe->power_count == 1) {
+ if (vfe->was_streaming) {
+ vfe->was_streaming = 0;
+ vfe->res->hw_ops->vfe_halt(vfe);
+ }
+ camss_disable_clocks(vfe->nclocks, vfe->clock);
+ pm_runtime_put_sync(vfe->camss->dev);
+ vfe->res->hw_ops->pm_domain_off(vfe);
+ }
+
+ vfe->power_count--;
+
+exit:
+ mutex_unlock(&vfe->power_lock);
+}
+
+/*
+ * vfe_flush_buffers - Return all vb2 buffers
+ * @vid: Video device structure
+ * @state: vb2 buffer state of the returned buffers
+ *
+ * Return all buffers to vb2. This includes queued pending buffers (still
+ * unused) and any buffers given to the hardware but again still not used.
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+int vfe_flush_buffers(struct camss_video *vid,
+ enum vb2_buffer_state state)
+{
+ struct vfe_line *line = container_of(vid, struct vfe_line, video_out);
+ struct vfe_device *vfe = to_vfe(line);
+ struct vfe_output *output;
+ unsigned long flags;
+
+ output = &line->output;
+
+ spin_lock_irqsave(&vfe->output_lock, flags);
+
+ vfe_buf_flush_pending(output, state);
+
+ if (output->buf[0])
+ vb2_buffer_done(&output->buf[0]->vb.vb2_buf, state);
+
+ if (output->buf[1])
+ vb2_buffer_done(&output->buf[1]->vb.vb2_buf, state);
+
+ if (output->last_buffer) {
+ vb2_buffer_done(&output->last_buffer->vb.vb2_buf, state);
+ output->last_buffer = NULL;
+ }
+
+ spin_unlock_irqrestore(&vfe->output_lock, flags);
+
+ return 0;
+}
+
+/*
+ * vfe_set_power - Power on/off VFE module
+ * @sd: VFE V4L2 subdevice
+ * @on: Requested power state
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+static int vfe_set_power(struct v4l2_subdev *sd, int on)
+{
+ struct vfe_line *line = v4l2_get_subdevdata(sd);
+ struct vfe_device *vfe = to_vfe(line);
+ int ret;
+
+ if (on) {
+ ret = vfe_get(vfe);
+ if (ret < 0)
+ return ret;
+ } else {
+ vfe_put(vfe);
+ }
+
+ return 0;
+}
+
+/*
+ * vfe_set_stream - Enable/disable streaming on VFE module
+ * @sd: VFE V4L2 subdevice
+ * @enable: Requested streaming state
+ *
+ * Main configuration of VFE module is triggered here.
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+static int vfe_set_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct vfe_line *line = v4l2_get_subdevdata(sd);
+ struct vfe_device *vfe = to_vfe(line);
+ int ret;
+
+ if (enable) {
+ line->output.state = VFE_OUTPUT_RESERVED;
+ ret = vfe->res->hw_ops->vfe_enable(line);
+ if (ret < 0)
+ dev_err(vfe->camss->dev,
+ "Failed to enable vfe outputs\n");
+ } else {
+ ret = vfe->res->hw_ops->vfe_disable(line);
+ if (ret < 0)
+ dev_err(vfe->camss->dev,
+ "Failed to disable vfe outputs\n");
+ }
+
+ return ret;
+}
+
+/*
+ * __vfe_get_format - Get pointer to format structure
+ * @line: VFE line
+ * @sd_state: V4L2 subdev state
+ * @pad: pad from which format is requested
+ * @which: TRY or ACTIVE format
+ *
+ * Return pointer to TRY or ACTIVE format structure
+ */
+static struct v4l2_mbus_framefmt *
+__vfe_get_format(struct vfe_line *line,
+ struct v4l2_subdev_state *sd_state,
+ unsigned int pad,
+ enum v4l2_subdev_format_whence which)
+{
+ if (which == V4L2_SUBDEV_FORMAT_TRY)
+ return v4l2_subdev_state_get_format(sd_state, pad);
+
+ return &line->fmt[pad];
+}
+
+/*
+ * __vfe_get_compose - Get pointer to compose selection structure
+ * @line: VFE line
+ * @sd_state: V4L2 subdev state
+ * @which: TRY or ACTIVE format
+ *
+ * Return pointer to TRY or ACTIVE compose rectangle structure
+ */
+static struct v4l2_rect *
+__vfe_get_compose(struct vfe_line *line,
+ struct v4l2_subdev_state *sd_state,
+ enum v4l2_subdev_format_whence which)
+{
+ if (which == V4L2_SUBDEV_FORMAT_TRY)
+ return v4l2_subdev_state_get_compose(sd_state,
+ MSM_VFE_PAD_SINK);
+
+ return &line->compose;
+}
+
+/*
+ * __vfe_get_crop - Get pointer to crop selection structure
+ * @line: VFE line
+ * @sd_state: V4L2 subdev state
+ * @which: TRY or ACTIVE format
+ *
+ * Return pointer to TRY or ACTIVE crop rectangle structure
+ */
+static struct v4l2_rect *
+__vfe_get_crop(struct vfe_line *line,
+ struct v4l2_subdev_state *sd_state,
+ enum v4l2_subdev_format_whence which)
+{
+ if (which == V4L2_SUBDEV_FORMAT_TRY)
+ return v4l2_subdev_state_get_crop(sd_state, MSM_VFE_PAD_SRC);
+
+ return &line->crop;
+}
+
+/*
+ * vfe_try_format - Handle try format by pad subdev method
+ * @line: VFE line
+ * @sd_state: V4L2 subdev state
+ * @pad: pad on which format is requested
+ * @fmt: pointer to v4l2 format structure
+ * @which: wanted subdev format
+ */
+static void vfe_try_format(struct vfe_line *line,
+ struct v4l2_subdev_state *sd_state,
+ unsigned int pad,
+ struct v4l2_mbus_framefmt *fmt,
+ enum v4l2_subdev_format_whence which)
+{
+ unsigned int i;
+ u32 code;
+
+ switch (pad) {
+ case MSM_VFE_PAD_SINK:
+ /* Set format on sink pad */
+
+ for (i = 0; i < line->nformats; i++)
+ if (fmt->code == line->formats[i].code)
+ break;
+
+ /* If not found, use UYVY as default */
+ if (i >= line->nformats)
+ fmt->code = MEDIA_BUS_FMT_UYVY8_1X16;
+
+ fmt->width = clamp_t(u32, fmt->width, 1, 8191);
+ fmt->height = clamp_t(u32, fmt->height, 1, 8191);
+
+ fmt->field = V4L2_FIELD_NONE;
+ fmt->colorspace = V4L2_COLORSPACE_SRGB;
+
+ break;
+
+ case MSM_VFE_PAD_SRC:
+ /* Set and return a format same as sink pad */
+ code = fmt->code;
+
+ *fmt = *__vfe_get_format(line, sd_state, MSM_VFE_PAD_SINK,
+ which);
+
+ fmt->code = vfe_src_pad_code(line, fmt->code, 0, code);
+
+ if (line->id == VFE_LINE_PIX) {
+ struct v4l2_rect *rect;
+
+ rect = __vfe_get_crop(line, sd_state, which);
+
+ fmt->width = rect->width;
+ fmt->height = rect->height;
+ }
+
+ break;
+ }
+
+ fmt->colorspace = V4L2_COLORSPACE_SRGB;
+}
+
+/*
+ * vfe_try_compose - Handle try compose selection by pad subdev method
+ * @line: VFE line
+ * @sd_state: V4L2 subdev state
+ * @rect: pointer to v4l2 rect structure
+ * @which: wanted subdev format
+ */
+static void vfe_try_compose(struct vfe_line *line,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_rect *rect,
+ enum v4l2_subdev_format_whence which)
+{
+ struct v4l2_mbus_framefmt *fmt;
+
+ fmt = __vfe_get_format(line, sd_state, MSM_VFE_PAD_SINK, which);
+
+ if (rect->width > fmt->width)
+ rect->width = fmt->width;
+
+ if (rect->height > fmt->height)
+ rect->height = fmt->height;
+
+ if (fmt->width > rect->width * SCALER_RATIO_MAX)
+ rect->width = (fmt->width + SCALER_RATIO_MAX - 1) /
+ SCALER_RATIO_MAX;
+
+ rect->width &= ~0x1;
+
+ if (fmt->height > rect->height * SCALER_RATIO_MAX)
+ rect->height = (fmt->height + SCALER_RATIO_MAX - 1) /
+ SCALER_RATIO_MAX;
+
+ if (rect->width < 16)
+ rect->width = 16;
+
+ if (rect->height < 4)
+ rect->height = 4;
+}
+
+/*
+ * vfe_try_crop - Handle try crop selection by pad subdev method
+ * @line: VFE line
+ * @sd_state: V4L2 subdev state
+ * @rect: pointer to v4l2 rect structure
+ * @which: wanted subdev format
+ */
+static void vfe_try_crop(struct vfe_line *line,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_rect *rect,
+ enum v4l2_subdev_format_whence which)
+{
+ struct v4l2_rect *compose;
+
+ compose = __vfe_get_compose(line, sd_state, which);
+
+ if (rect->width > compose->width)
+ rect->width = compose->width;
+
+ if (rect->width + rect->left > compose->width)
+ rect->left = compose->width - rect->width;
+
+ if (rect->height > compose->height)
+ rect->height = compose->height;
+
+ if (rect->height + rect->top > compose->height)
+ rect->top = compose->height - rect->height;
+
+ /* wm in line based mode writes multiple of 16 horizontally */
+ rect->left += (rect->width & 0xf) >> 1;
+ rect->width &= ~0xf;
+
+ if (rect->width < 16) {
+ rect->left = 0;
+ rect->width = 16;
+ }
+
+ if (rect->height < 4) {
+ rect->top = 0;
+ rect->height = 4;
+ }
+}
+
+/*
+ * vfe_enum_mbus_code - Handle pixel format enumeration
+ * @sd: VFE V4L2 subdevice
+ * @sd_state: V4L2 subdev state
+ * @code: pointer to v4l2_subdev_mbus_code_enum structure
+ *
+ * return -EINVAL or zero on success
+ */
+static int vfe_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ struct vfe_line *line = v4l2_get_subdevdata(sd);
+
+ if (code->pad == MSM_VFE_PAD_SINK) {
+ if (code->index >= line->nformats)
+ return -EINVAL;
+
+ code->code = line->formats[code->index].code;
+ } else {
+ struct v4l2_mbus_framefmt *sink_fmt;
+
+ sink_fmt = __vfe_get_format(line, sd_state, MSM_VFE_PAD_SINK,
+ code->which);
+
+ code->code = vfe_src_pad_code(line, sink_fmt->code,
+ code->index, 0);
+ if (!code->code)
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ * vfe_enum_frame_size - Handle frame size enumeration
+ * @sd: VFE V4L2 subdevice
+ * @sd_state: V4L2 subdev state
+ * @fse: pointer to v4l2_subdev_frame_size_enum structure
+ *
+ * Return -EINVAL or zero on success
+ */
+static int vfe_enum_frame_size(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_frame_size_enum *fse)
+{
+ struct vfe_line *line = v4l2_get_subdevdata(sd);
+ struct v4l2_mbus_framefmt format;
+
+ if (fse->index != 0)
+ return -EINVAL;
+
+ format.code = fse->code;
+ format.width = 1;
+ format.height = 1;
+ vfe_try_format(line, sd_state, fse->pad, &format, fse->which);
+ fse->min_width = format.width;
+ fse->min_height = format.height;
+
+ if (format.code != fse->code)
+ return -EINVAL;
+
+ format.code = fse->code;
+ format.width = -1;
+ format.height = -1;
+ vfe_try_format(line, sd_state, fse->pad, &format, fse->which);
+ fse->max_width = format.width;
+ fse->max_height = format.height;
+
+ return 0;
+}
+
+/*
+ * vfe_get_format - Handle get format by pads subdev method
+ * @sd: VFE V4L2 subdevice
+ * @sd_state: V4L2 subdev state
+ * @fmt: pointer to v4l2 subdev format structure
+ *
+ * Return -EINVAL or zero on success
+ */
+static int vfe_get_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct vfe_line *line = v4l2_get_subdevdata(sd);
+ struct v4l2_mbus_framefmt *format;
+
+ format = __vfe_get_format(line, sd_state, fmt->pad, fmt->which);
+ if (format == NULL)
+ return -EINVAL;
+
+ fmt->format = *format;
+
+ return 0;
+}
+
+static int vfe_set_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel);
+
+/*
+ * vfe_set_format - Handle set format by pads subdev method
+ * @sd: VFE V4L2 subdevice
+ * @sd_state: V4L2 subdev state
+ * @fmt: pointer to v4l2 subdev format structure
+ *
+ * Return -EINVAL or zero on success
+ */
+static int vfe_set_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct vfe_line *line = v4l2_get_subdevdata(sd);
+ struct v4l2_mbus_framefmt *format;
+
+ format = __vfe_get_format(line, sd_state, fmt->pad, fmt->which);
+ if (format == NULL)
+ return -EINVAL;
+
+ vfe_try_format(line, sd_state, fmt->pad, &fmt->format, fmt->which);
+ *format = fmt->format;
+
+ if (fmt->pad == MSM_VFE_PAD_SINK) {
+ struct v4l2_subdev_selection sel = { 0 };
+ int ret;
+
+ /* Propagate the format from sink to source */
+ format = __vfe_get_format(line, sd_state, MSM_VFE_PAD_SRC,
+ fmt->which);
+
+ *format = fmt->format;
+ vfe_try_format(line, sd_state, MSM_VFE_PAD_SRC, format,
+ fmt->which);
+
+ if (line->id != VFE_LINE_PIX)
+ return 0;
+
+ /* Reset sink pad compose selection */
+ sel.which = fmt->which;
+ sel.pad = MSM_VFE_PAD_SINK;
+ sel.target = V4L2_SEL_TGT_COMPOSE;
+ sel.r.width = fmt->format.width;
+ sel.r.height = fmt->format.height;
+ ret = vfe_set_selection(sd, sd_state, &sel);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+/*
+ * vfe_get_selection - Handle get selection by pads subdev method
+ * @sd: VFE V4L2 subdevice
+ * @sd_state: V4L2 subdev state
+ * @sel: pointer to v4l2 subdev selection structure
+ *
+ * Return -EINVAL or zero on success
+ */
+static int vfe_get_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel)
+{
+ struct vfe_line *line = v4l2_get_subdevdata(sd);
+ struct v4l2_subdev_format fmt = { 0 };
+ struct v4l2_rect *rect;
+ int ret;
+
+ if (line->id != VFE_LINE_PIX)
+ return -EINVAL;
+
+ if (sel->pad == MSM_VFE_PAD_SINK)
+ switch (sel->target) {
+ case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+ fmt.pad = sel->pad;
+ fmt.which = sel->which;
+ ret = vfe_get_format(sd, sd_state, &fmt);
+ if (ret < 0)
+ return ret;
+
+ sel->r.left = 0;
+ sel->r.top = 0;
+ sel->r.width = fmt.format.width;
+ sel->r.height = fmt.format.height;
+ break;
+ case V4L2_SEL_TGT_COMPOSE:
+ rect = __vfe_get_compose(line, sd_state, sel->which);
+ if (rect == NULL)
+ return -EINVAL;
+
+ sel->r = *rect;
+ break;
+ default:
+ return -EINVAL;
+ }
+ else if (sel->pad == MSM_VFE_PAD_SRC)
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ rect = __vfe_get_compose(line, sd_state, sel->which);
+ if (rect == NULL)
+ return -EINVAL;
+
+ sel->r.left = rect->left;
+ sel->r.top = rect->top;
+ sel->r.width = rect->width;
+ sel->r.height = rect->height;
+ break;
+ case V4L2_SEL_TGT_CROP:
+ rect = __vfe_get_crop(line, sd_state, sel->which);
+ if (rect == NULL)
+ return -EINVAL;
+
+ sel->r = *rect;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*
+ * vfe_set_selection - Handle set selection by pads subdev method
+ * @sd: VFE V4L2 subdevice
+ * @sd_state: V4L2 subdev state
+ * @sel: pointer to v4l2 subdev selection structure
+ *
+ * Return -EINVAL or zero on success
+ */
+static int vfe_set_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel)
+{
+ struct vfe_line *line = v4l2_get_subdevdata(sd);
+ struct v4l2_rect *rect;
+ int ret;
+
+ if (line->id != VFE_LINE_PIX)
+ return -EINVAL;
+
+ if (sel->target == V4L2_SEL_TGT_COMPOSE &&
+ sel->pad == MSM_VFE_PAD_SINK) {
+ struct v4l2_subdev_selection crop = { 0 };
+
+ rect = __vfe_get_compose(line, sd_state, sel->which);
+ if (rect == NULL)
+ return -EINVAL;
+
+ vfe_try_compose(line, sd_state, &sel->r, sel->which);
+ *rect = sel->r;
+
+ /* Reset source crop selection */
+ crop.which = sel->which;
+ crop.pad = MSM_VFE_PAD_SRC;
+ crop.target = V4L2_SEL_TGT_CROP;
+ crop.r = *rect;
+ ret = vfe_set_selection(sd, sd_state, &crop);
+ } else if (sel->target == V4L2_SEL_TGT_CROP &&
+ sel->pad == MSM_VFE_PAD_SRC) {
+ struct v4l2_subdev_format fmt = { 0 };
+
+ rect = __vfe_get_crop(line, sd_state, sel->which);
+ if (rect == NULL)
+ return -EINVAL;
+
+ vfe_try_crop(line, sd_state, &sel->r, sel->which);
+ *rect = sel->r;
+
+ /* Reset source pad format width and height */
+ fmt.which = sel->which;
+ fmt.pad = MSM_VFE_PAD_SRC;
+ ret = vfe_get_format(sd, sd_state, &fmt);
+ if (ret < 0)
+ return ret;
+
+ fmt.format.width = rect->width;
+ fmt.format.height = rect->height;
+ ret = vfe_set_format(sd, sd_state, &fmt);
+ } else {
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+/*
+ * vfe_init_formats - Initialize formats on all pads
+ * @sd: VFE V4L2 subdevice
+ * @fh: V4L2 subdev file handle
+ *
+ * Initialize all pad formats with default values.
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+static int vfe_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ struct v4l2_subdev_format format = {
+ .pad = MSM_VFE_PAD_SINK,
+ .which = fh ? V4L2_SUBDEV_FORMAT_TRY :
+ V4L2_SUBDEV_FORMAT_ACTIVE,
+ .format = {
+ .code = MEDIA_BUS_FMT_UYVY8_1X16,
+ .width = 1920,
+ .height = 1080
+ }
+ };
+
+ return vfe_set_format(sd, fh ? fh->state : NULL, &format);
+}
+
+/*
+ * msm_vfe_subdev_init - Initialize VFE device structure and resources
+ * @vfe: VFE device
+ * @res: VFE module resources table
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
+ const struct camss_subdev_resources *res, u8 id)
+{
+ struct device *dev = camss->dev;
+ struct platform_device *pdev = to_platform_device(dev);
+ int i, j;
+ int ret;
+
+ if (!res->vfe.line_num)
+ return -EINVAL;
+
+ vfe->res = &res->vfe;
+ vfe->res->hw_ops->subdev_init(dev, vfe);
+
+ /* Power domain */
+
+ if (res->vfe.pd_name) {
+ vfe->genpd = dev_pm_domain_attach_by_name(camss->dev,
+ res->vfe.pd_name);
+ if (IS_ERR(vfe->genpd)) {
+ ret = PTR_ERR(vfe->genpd);
+ return ret;
+ }
+ }
+
+ if (!vfe->genpd && res->vfe.has_pd) {
+ /*
+ * Legacy magic index.
+ * Requires
+ * power-domain = <VFE_X>,
+ * <VFE_Y>,
+ * <TITAN_TOP>
+ * id must correspondng to the index of the VFE which must
+ * come before the TOP GDSC. VFE Lite has no individually
+ * collapasible domain which is why id < vfe_num is a valid
+ * check.
+ */
+ vfe->genpd = dev_pm_domain_attach_by_id(camss->dev, id);
+ if (IS_ERR(vfe->genpd))
+ return PTR_ERR(vfe->genpd);
+ }
+
+ /* Memory */
+
+ vfe->base = devm_platform_ioremap_resource_byname(pdev, res->reg[0]);
+ if (IS_ERR(vfe->base)) {
+ dev_err(dev, "could not map memory\n");
+ return PTR_ERR(vfe->base);
+ }
+
+ if (vfe->res->has_vbif) {
+ vfe->vbif_base = devm_platform_ioremap_resource_byname(pdev,
+ vfe->res->vbif_name);
+ if (IS_ERR(vfe->vbif_base)) {
+ dev_err(dev, "could not map vbif memory\n");
+ return PTR_ERR(vfe->vbif_base);
+ }
+ }
+
+ /* Interrupt */
+
+ ret = platform_get_irq_byname(pdev, res->interrupt[0]);
+ if (ret < 0)
+ return ret;
+
+ vfe->irq = ret;
+ snprintf(vfe->irq_name, sizeof(vfe->irq_name), "%s_%s%d",
+ dev_name(dev), MSM_VFE_NAME, id);
+ ret = devm_request_irq(dev, vfe->irq, vfe->res->hw_ops->isr,
+ IRQF_TRIGGER_RISING, vfe->irq_name, vfe);
+ if (ret < 0) {
+ dev_err(dev, "request_irq failed: %d\n", ret);
+ return ret;
+ }
+
+ /* Clocks */
+
+ vfe->nclocks = 0;
+ while (res->clock[vfe->nclocks])
+ vfe->nclocks++;
+
+ vfe->clock = devm_kcalloc(dev, vfe->nclocks, sizeof(*vfe->clock),
+ GFP_KERNEL);
+ if (!vfe->clock)
+ return -ENOMEM;
+
+ for (i = 0; i < vfe->nclocks; i++) {
+ struct camss_clock *clock = &vfe->clock[i];
+
+ clock->clk = devm_clk_get(dev, res->clock[i]);
+ if (IS_ERR(clock->clk))
+ return PTR_ERR(clock->clk);
+
+ clock->name = res->clock[i];
+
+ clock->nfreqs = 0;
+ while (res->clock_rate[i][clock->nfreqs])
+ clock->nfreqs++;
+
+ if (!clock->nfreqs) {
+ clock->freq = NULL;
+ continue;
+ }
+
+ clock->freq = devm_kcalloc(dev,
+ clock->nfreqs,
+ sizeof(*clock->freq),
+ GFP_KERNEL);
+ if (!clock->freq)
+ return -ENOMEM;
+
+ for (j = 0; j < clock->nfreqs; j++)
+ clock->freq[j] = res->clock_rate[i][j];
+ }
+
+ mutex_init(&vfe->power_lock);
+ vfe->power_count = 0;
+
+ mutex_init(&vfe->stream_lock);
+ vfe->stream_count = 0;
+
+ spin_lock_init(&vfe->output_lock);
+
+ vfe->camss = camss;
+ vfe->id = id;
+ vfe->reg_update = 0;
+
+ for (i = VFE_LINE_RDI0; i < vfe->res->line_num; i++) {
+ struct vfe_line *l = &vfe->line[i];
+
+ l->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+ l->video_out.camss = camss;
+ l->id = i;
+ init_completion(&l->output.sof);
+ init_completion(&l->output.reg_update);
+
+ if (i == VFE_LINE_PIX) {
+ l->nformats = res->vfe.formats_pix->nformats;
+ l->formats = res->vfe.formats_pix->formats;
+ } else {
+ l->nformats = res->vfe.formats_rdi->nformats;
+ l->formats = res->vfe.formats_rdi->formats;
+ }
+ }
+
+ init_completion(&vfe->reset_complete);
+ init_completion(&vfe->halt_complete);
+
+ return 0;
+}
+
+/*
+ * msm_vfe_genpd_cleanup - Cleanup VFE genpd linkages
+ * @vfe: VFE device
+ */
+void msm_vfe_genpd_cleanup(struct vfe_device *vfe)
+{
+ if (vfe->genpd_link)
+ device_link_del(vfe->genpd_link);
+
+ if (vfe->genpd)
+ dev_pm_domain_detach(vfe->genpd, true);
+}
+
+/*
+ * vfe_link_setup - Setup VFE connections
+ * @entity: Pointer to media entity structure
+ * @local: Pointer to local pad
+ * @remote: Pointer to remote pad
+ * @flags: Link flags
+ *
+ * Return 0 on success
+ */
+static int vfe_link_setup(struct media_entity *entity,
+ const struct media_pad *local,
+ const struct media_pad *remote, u32 flags)
+{
+ if (flags & MEDIA_LNK_FL_ENABLED)
+ if (media_pad_remote_pad_first(local))
+ return -EBUSY;
+
+ return 0;
+}
+
+static const struct v4l2_subdev_core_ops vfe_core_ops = {
+ .s_power = vfe_set_power,
+};
+
+static const struct v4l2_subdev_video_ops vfe_video_ops = {
+ .s_stream = vfe_set_stream,
+};
+
+static const struct v4l2_subdev_pad_ops vfe_pad_ops = {
+ .enum_mbus_code = vfe_enum_mbus_code,
+ .enum_frame_size = vfe_enum_frame_size,
+ .get_fmt = vfe_get_format,
+ .set_fmt = vfe_set_format,
+ .get_selection = vfe_get_selection,
+ .set_selection = vfe_set_selection,
+};
+
+static const struct v4l2_subdev_ops vfe_v4l2_ops = {
+ .core = &vfe_core_ops,
+ .video = &vfe_video_ops,
+ .pad = &vfe_pad_ops,
+};
+
+static const struct v4l2_subdev_internal_ops vfe_v4l2_internal_ops = {
+ .open = vfe_init_formats,
+};
+
+static const struct media_entity_operations vfe_media_ops = {
+ .link_setup = vfe_link_setup,
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+static int vfe_bpl_align(struct vfe_device *vfe)
+{
+ int ret = 8;
+
+ switch (vfe->camss->res->version) {
+ case CAMSS_7280:
+ case CAMSS_8250:
+ case CAMSS_8280XP:
+ case CAMSS_8300:
+ case CAMSS_845:
+ case CAMSS_8550:
+ case CAMSS_8650:
+ case CAMSS_8775P:
+ case CAMSS_X1E80100:
+ ret = 16;
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+/*
+ * msm_vfe_register_entities - Register subdev node for VFE module
+ * @vfe: VFE device
+ * @v4l2_dev: V4L2 device
+ *
+ * Initialize and register a subdev node for the VFE module. Then
+ * call msm_video_register() to register the video device node which
+ * will be connected to this subdev node. Then actually create the
+ * media link between them.
+ *
+ * Return 0 on success or a negative error code otherwise
+ */
+int msm_vfe_register_entities(struct vfe_device *vfe,
+ struct v4l2_device *v4l2_dev)
+{
+ struct device *dev = vfe->camss->dev;
+ struct v4l2_subdev *sd;
+ struct media_pad *pads;
+ struct camss_video *video_out;
+ int ret;
+ int i;
+
+ for (i = 0; i < vfe->res->line_num; i++) {
+ char name[32];
+
+ sd = &vfe->line[i].subdev;
+ pads = vfe->line[i].pads;
+ video_out = &vfe->line[i].video_out;
+
+ v4l2_subdev_init(sd, &vfe_v4l2_ops);
+ sd->internal_ops = &vfe_v4l2_internal_ops;
+ sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ if (i == VFE_LINE_PIX)
+ snprintf(sd->name, ARRAY_SIZE(sd->name), "%s%d_%s",
+ MSM_VFE_NAME, vfe->id, "pix");
+ else
+ snprintf(sd->name, ARRAY_SIZE(sd->name), "%s%d_%s%d",
+ MSM_VFE_NAME, vfe->id, "rdi", i);
+
+ v4l2_set_subdevdata(sd, &vfe->line[i]);
+
+ ret = vfe_init_formats(sd, NULL);
+ if (ret < 0) {
+ dev_err(dev, "Failed to init format: %d\n", ret);
+ goto error_init;
+ }
+
+ pads[MSM_VFE_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
+ pads[MSM_VFE_PAD_SRC].flags = MEDIA_PAD_FL_SOURCE;
+
+ sd->entity.function = MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER;
+ sd->entity.ops = &vfe_media_ops;
+ ret = media_entity_pads_init(&sd->entity, MSM_VFE_PADS_NUM,
+ pads);
+ if (ret < 0) {
+ dev_err(dev, "Failed to init media entity: %d\n", ret);
+ goto error_init;
+ }
+
+ ret = v4l2_device_register_subdev(v4l2_dev, sd);
+ if (ret < 0) {
+ dev_err(dev, "Failed to register subdev: %d\n", ret);
+ goto error_reg_subdev;
+ }
+
+ video_out->ops = &vfe->video_ops;
+ video_out->bpl_alignment = vfe_bpl_align(vfe);
+ video_out->line_based = 0;
+ if (i == VFE_LINE_PIX) {
+ video_out->bpl_alignment = 16;
+ video_out->line_based = 1;
+ }
+
+ video_out->nformats = vfe->line[i].nformats;
+ video_out->formats = vfe->line[i].formats;
+
+ snprintf(name, ARRAY_SIZE(name), "%s%d_%s%d",
+ MSM_VFE_NAME, vfe->id, "video", i);
+ ret = msm_video_register(video_out, v4l2_dev, name);
+ if (ret < 0) {
+ dev_err(dev, "Failed to register video node: %d\n",
+ ret);
+ goto error_reg_video;
+ }
+
+ ret = media_create_pad_link(
+ &sd->entity, MSM_VFE_PAD_SRC,
+ &video_out->vdev.entity, 0,
+ MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED);
+ if (ret < 0) {
+ dev_err(dev, "Failed to link %s->%s entities: %d\n",
+ sd->entity.name, video_out->vdev.entity.name,
+ ret);
+ goto error_link;
+ }
+ }
+
+ return 0;
+
+error_link:
+ msm_video_unregister(video_out);
+
+error_reg_video:
+ v4l2_device_unregister_subdev(sd);
+
+error_reg_subdev:
+ media_entity_cleanup(&sd->entity);
+
+error_init:
+ for (i--; i >= 0; i--) {
+ sd = &vfe->line[i].subdev;
+ video_out = &vfe->line[i].video_out;
+
+ msm_video_unregister(video_out);
+ v4l2_device_unregister_subdev(sd);
+ media_entity_cleanup(&sd->entity);
+ }
+
+ return ret;
+}
+
+/*
+ * msm_vfe_unregister_entities - Unregister VFE module subdev node
+ * @vfe: VFE device
+ */
+void msm_vfe_unregister_entities(struct vfe_device *vfe)
+{
+ int i;
+
+ mutex_destroy(&vfe->power_lock);
+ mutex_destroy(&vfe->stream_lock);
+
+ for (i = 0; i < vfe->res->line_num; i++) {
+ struct v4l2_subdev *sd = &vfe->line[i].subdev;
+ struct camss_video *video_out = &vfe->line[i].video_out;
+
+ msm_video_unregister(video_out);
+ v4l2_device_unregister_subdev(sd);
+ media_entity_cleanup(&sd->entity);
+ }
+}
+
+bool vfe_is_lite(struct vfe_device *vfe)
+{
+ return vfe->camss->res->vfe_res[vfe->id].vfe.is_lite;
+}
generated by cgit (git 2.34.1) at 2025-12-26 21:53:00 +0000