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cddd459140
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release which was tagged LSDK-20.04-V5.4. https://source.codeaurora.org/external/qoriq/qoriq-components/linux/ For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in LSDK, port the dts patches from 4.14. The patches are sorted into the following categories: 301-arch-xxxx 302-dts-xxxx 303-core-xxxx 701-net-xxxx 801-audio-xxxx 802-can-xxxx 803-clock-xxxx 804-crypto-xxxx 805-display-xxxx 806-dma-xxxx 807-gpio-xxxx 808-i2c-xxxx 809-jailhouse-xxxx 810-keys-xxxx 811-kvm-xxxx 812-pcie-xxxx 813-pm-xxxx 814-qe-xxxx 815-sata-xxxx 816-sdhc-xxxx 817-spi-xxxx 818-thermal-xxxx 819-uart-xxxx 820-usb-xxxx 821-vfio-xxxx Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
187 lines
5.5 KiB
Diff
187 lines
5.5 KiB
Diff
From 06e912bd821b21d9360a75cde2d78b03f17a5872 Mon Sep 17 00:00:00 2001
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From: Wen He <wen.he_1@nxp.com>
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Date: Tue, 17 Sep 2019 15:35:52 +0800
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Subject: [PATCH] drm: ls1028a: Add DP driver support for LS1028A
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Add Display Port driver support for NXP Layerscape LS1028A platform.
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Signed-off-by: Wen He <wen.he_1@nxp.com>
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---
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drivers/gpu/drm/bridge/cadence/cdns-dp-core.c | 1 +
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drivers/gpu/drm/imx/Makefile | 2 +-
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drivers/gpu/drm/imx/cdn-mhdp-imxdrv.c | 13 +++
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drivers/gpu/drm/imx/cdn-mhdp-ls1028a.c | 110 ++++++++++++++++++++++++++
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drivers/gpu/drm/imx/cdns-mhdp-imx.h | 2 +
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5 files changed, 127 insertions(+), 1 deletion(-)
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create mode 100644 drivers/gpu/drm/imx/cdn-mhdp-ls1028a.c
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--- a/drivers/gpu/drm/bridge/cadence/cdns-dp-core.c
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+++ b/drivers/gpu/drm/bridge/cadence/cdns-dp-core.c
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@@ -275,6 +275,7 @@ static int cdns_dp_bridge_attach(struct
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struct drm_connector *connector = &mhdp->connector.base;
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connector->interlace_allowed = 1;
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+
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connector->polled = DRM_CONNECTOR_POLL_HPD;
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drm_connector_helper_add(connector, &cdns_dp_connector_helper_funcs);
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--- a/drivers/gpu/drm/imx/Makefile
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+++ b/drivers/gpu/drm/imx/Makefile
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@@ -9,4 +9,4 @@ obj-$(CONFIG_DRM_IMX_TVE) += imx-tve.o
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obj-$(CONFIG_DRM_IMX_LDB) += imx-ldb.o
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obj-$(CONFIG_DRM_IMX_HDMI) += dw_hdmi-imx.o
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-obj-$(CONFIG_DRM_IMX_CDNS_MHDP) += cdn-mhdp-imxdrv.o cdn-mhdp-dp-phy.o cdn-mhdp-hdmi-phy.o cdn-mhdp-imx8qm.o
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+obj-$(CONFIG_DRM_IMX_CDNS_MHDP) += cdn-mhdp-imxdrv.o cdn-mhdp-dp-phy.o cdn-mhdp-hdmi-phy.o cdn-mhdp-imx8qm.o cdn-mhdp-ls1028a.o
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--- a/drivers/gpu/drm/imx/cdn-mhdp-imxdrv.c
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+++ b/drivers/gpu/drm/imx/cdn-mhdp-imxdrv.c
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@@ -94,6 +94,16 @@ static struct cdns_plat_data imx8qm_dp_d
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.is_dp = true,
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};
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+static struct cdns_plat_data ls1028a_dp_drv_data = {
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+ .bind = cdns_dp_bind,
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+ .unbind = cdns_dp_unbind,
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+ .phy_set = cdns_dp_phy_set_imx8mq,
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+ .power_on = cdns_mhdp_power_on_ls1028a,
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+ .firmware_init = cdns_mhdp_firmware_init_imx8qm,
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+ .pclk_rate = cdns_mhdp_pclk_rate_ls1028a,
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+ .bus_type = BUS_TYPE_NORMAL_APB,
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+};
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+
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static const struct of_device_id cdns_mhdp_imx_dt_ids[] = {
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{ .compatible = "cdn,imx8mq-hdmi",
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.data = &imx8mq_hdmi_drv_data
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@@ -107,6 +117,9 @@ static const struct of_device_id cdns_mh
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{ .compatible = "cdn,imx8qm-dp",
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.data = &imx8qm_dp_drv_data
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},
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+ { .compatible = "cdn,ls1028a-dp",
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+ .data = &ls1028a_dp_drv_data
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+ },
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{},
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};
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MODULE_DEVICE_TABLE(of, cdns_mhdp_imx_dt_ids);
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--- /dev/null
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+++ b/drivers/gpu/drm/imx/cdn-mhdp-ls1028a.c
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@@ -0,0 +1,110 @@
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+// SPDX-License-Identifier: GPL-2.0
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+/*
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+ * Copyright 2019 NXP
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+ *
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+ */
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+#include <linux/clk.h>
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+#include <drm/drmP.h>
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+#include <linux/of.h>
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+#include <linux/of_address.h>
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+#include <linux/of_device.h>
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+
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+#include "cdns-mhdp-imx.h"
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+
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+static const struct of_device_id scfg_device_ids[] = {
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+ { .compatible = "fsl,ls1028a-scfg", },
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+ {}
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+};
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+
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+static void ls1028a_phy_reset(u8 reset)
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+{
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+ struct device_node *scfg_node;
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+ void __iomem *scfg_base = NULL;
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+
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+ scfg_node = of_find_matching_node(NULL, scfg_device_ids);
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+ if (scfg_node)
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+ scfg_base = of_iomap(scfg_node, 0);
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+
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+ iowrite32(reset, scfg_base + 0x230);
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+}
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+
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+int ls1028a_clocks_init(struct imx_mhdp_device *imx_mhdp)
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+{
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+ struct device *dev = imx_mhdp->mhdp.dev;
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+ struct imx_hdp_clks *clks = &imx_mhdp->clks;
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+
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+ clks->clk_core = devm_clk_get(dev, "clk_core");
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+ if (IS_ERR(clks->clk_core)) {
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+ dev_warn(dev, "failed to get hdp core clk\n");
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+ return PTR_ERR(clks->clk_core);
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+ }
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+
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+ clks->clk_pxl = devm_clk_get(dev, "clk_pxl");
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+ if (IS_ERR(clks->clk_pxl)) {
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+ dev_warn(dev, "failed to get pxl clk\n");
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+ return PTR_ERR(clks->clk_pxl);
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+ }
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+
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+ return true;
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+}
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+
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+static int ls1028a_pixel_clk_enable(struct imx_mhdp_device *imx_mhdp)
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+{
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+ struct imx_hdp_clks *clks = &imx_mhdp->clks;
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+ struct device *dev = imx_mhdp->mhdp.dev;
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+ int ret;
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+
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+ ret = clk_prepare_enable(clks->clk_pxl);
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+ if (ret < 0) {
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+ dev_err(dev, "%s, pre clk pxl error\n", __func__);
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+ return ret;
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+ }
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+
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+ return ret;
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+}
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+
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+static void ls1028a_pixel_clk_disable(struct imx_mhdp_device *imx_mhdp)
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+{
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+ struct imx_hdp_clks *clks = &imx_mhdp->clks;
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+
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+ clk_disable_unprepare(clks->clk_pxl);
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+}
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+
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+static void ls1028a_pixel_clk_set_rate(struct imx_mhdp_device *imx_mhdp,
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+ u32 pclock)
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+{
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+ struct imx_hdp_clks *clks = &imx_mhdp->clks;
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+
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+ clk_set_rate(clks->clk_pxl, pclock);
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+}
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+
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+int cdns_mhdp_power_on_ls1028a(struct cdns_mhdp_device *mhdp)
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+{
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+ struct imx_mhdp_device *imx_mhdp = container_of
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+ (mhdp, struct imx_mhdp_device, mhdp);
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+
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+ /* clock init and rate set */
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+ ls1028a_clocks_init(imx_mhdp);
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+
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+ ls1028a_pixel_clk_enable(imx_mhdp);
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+
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+ /* Init pixel clock with 148.5MHz before FW init */
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+ ls1028a_pixel_clk_set_rate(imx_mhdp, 148500000);
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+
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+ ls1028a_phy_reset(1);
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+
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+ return 0;
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+}
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+
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+void cdns_mhdp_pclk_rate_ls1028a(struct cdns_mhdp_device *mhdp)
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+{
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+ struct imx_mhdp_device *imx_mhdp = container_of
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+ (mhdp, struct imx_mhdp_device, mhdp);
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+
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+ /* set pixel clock before video mode setup */
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+ ls1028a_pixel_clk_disable(imx_mhdp);
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+
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+ ls1028a_pixel_clk_set_rate(imx_mhdp, imx_mhdp->mhdp.mode.clock * 1000);
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+
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+ ls1028a_pixel_clk_enable(imx_mhdp);
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+}
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--- a/drivers/gpu/drm/imx/cdns-mhdp-imx.h
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+++ b/drivers/gpu/drm/imx/cdns-mhdp-imx.h
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@@ -78,4 +78,6 @@ void cdns_mhdp_plat_deinit_imx8qm(struct
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void cdns_mhdp_pclk_rate_imx8qm(struct cdns_mhdp_device *mhdp);
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int cdns_mhdp_firmware_init_imx8qm(struct cdns_mhdp_device *mhdp);
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int cdns_mhdp_power_on_imx8qm(struct cdns_mhdp_device *mhdp);
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+int cdns_mhdp_power_on_ls1028a(struct cdns_mhdp_device *mhdp);
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+void cdns_mhdp_pclk_rate_ls1028a(struct cdns_mhdp_device *mhdp);
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#endif /* CDNS_MHDP_IMX_H_ */
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