diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0530-clk-bcm-Add-BCM2711-DVP-driver.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0530-clk-bcm-Add-BCM2711-DVP-driver.patch | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0530-clk-bcm-Add-BCM2711-DVP-driver.patch b/target/linux/bcm27xx/patches-5.4/950-0530-clk-bcm-Add-BCM2711-DVP-driver.patch deleted file mode 100644 index 23105057a9..0000000000 --- a/target/linux/bcm27xx/patches-5.4/950-0530-clk-bcm-Add-BCM2711-DVP-driver.patch +++ /dev/null @@ -1,172 +0,0 @@ -From 0a2b9668e391b5fef4c54f992d7f8f99e5f50ef3 Mon Sep 17 00:00:00 2001 -From: Maxime Ripard <maxime@cerno.tech> -Date: Tue, 28 Jan 2020 09:36:27 +0100 -Subject: [PATCH] clk: bcm: Add BCM2711 DVP driver - -The HDMI block has a block that controls clocks and reset signals to the -HDMI0 and HDMI1 controllers. - -Let's expose that through a clock driver implementing a clock and reset -provider. - -Cc: Michael Turquette <mturquette@baylibre.com> -Cc: Stephen Boyd <sboyd@kernel.org> -Cc: Rob Herring <robh+dt@kernel.org> -Cc: linux-clk@vger.kernel.org -Cc: devicetree@vger.kernel.org -Signed-off-by: Maxime Ripard <maxime@cerno.tech> ---- - drivers/clk/bcm/Kconfig | 1 + - drivers/clk/bcm/Makefile | 1 + - drivers/clk/bcm/clk-bcm2711-dvp.c | 125 ++++++++++++++++++++++++++++++ - 3 files changed, 127 insertions(+) - create mode 100644 drivers/clk/bcm/clk-bcm2711-dvp.c - ---- a/drivers/clk/bcm/Kconfig -+++ b/drivers/clk/bcm/Kconfig -@@ -4,6 +4,7 @@ config CLK_BCM2835 - depends on ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST - depends on COMMON_CLK - default ARCH_BCM2835 || ARCH_BRCMSTB -+ select RESET_SIMPLE - help - Enable common clock framework support for Broadcom BCM2835 - SoCs. ---- a/drivers/clk/bcm/Makefile -+++ b/drivers/clk/bcm/Makefile -@@ -6,6 +6,7 @@ obj-$(CONFIG_CLK_BCM_KONA) += clk-kona-s - obj-$(CONFIG_CLK_BCM_KONA) += clk-bcm281xx.o - obj-$(CONFIG_CLK_BCM_KONA) += clk-bcm21664.o - obj-$(CONFIG_COMMON_CLK_IPROC) += clk-iproc-armpll.o clk-iproc-pll.o clk-iproc-asiu.o -+obj-$(CONFIG_CLK_BCM2835) += clk-bcm2711-dvp.o - obj-$(CONFIG_CLK_BCM2835) += clk-bcm2835.o - obj-$(CONFIG_CLK_BCM2835) += clk-bcm2835-aux.o - obj-$(CONFIG_CLK_RASPBERRYPI) += clk-raspberrypi.o ---- /dev/null -+++ b/drivers/clk/bcm/clk-bcm2711-dvp.c -@@ -0,0 +1,125 @@ -+// SPDX-License-Identifier: GPL-2.0-or-later -+// Copyright 2020 Cerno -+ -+#include <linux/clk-provider.h> -+#include <linux/module.h> -+#include <linux/platform_device.h> -+#include <linux/reset-controller.h> -+#include <linux/reset/reset-simple.h> -+ -+#define DVP_HT_RPI_SW_INIT 0x04 -+#define DVP_HT_RPI_MISC_CONFIG 0x08 -+ -+#define NR_CLOCKS 2 -+#define NR_RESETS 6 -+ -+struct clk_dvp { -+ struct clk_hw_onecell_data *data; -+ struct reset_simple_data reset; -+}; -+ -+static int clk_dvp_probe(struct platform_device *pdev) -+{ -+ struct clk_hw_onecell_data *data; -+ struct resource *res; -+ struct clk_dvp *dvp; -+ void __iomem *base; -+ const char *parent; -+ int ret; -+ -+ dvp = devm_kzalloc(&pdev->dev, sizeof(*dvp), GFP_KERNEL); -+ if (!dvp) -+ return -ENOMEM; -+ platform_set_drvdata(pdev, dvp); -+ -+ dvp->data = devm_kzalloc(&pdev->dev, -+ struct_size(dvp->data, hws, NR_CLOCKS), -+ GFP_KERNEL); -+ if (!dvp->data) -+ return -ENOMEM; -+ data = dvp->data; -+ -+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ base = devm_ioremap_resource(&pdev->dev, res); -+ if (IS_ERR(base)) -+ return PTR_ERR(base); -+ -+ dvp->reset.rcdev.owner = THIS_MODULE; -+ dvp->reset.rcdev.nr_resets = NR_RESETS; -+ dvp->reset.rcdev.ops = &reset_simple_ops; -+ dvp->reset.rcdev.of_node = pdev->dev.of_node; -+ dvp->reset.membase = base + DVP_HT_RPI_SW_INIT; -+ spin_lock_init(&dvp->reset.lock); -+ -+ ret = reset_controller_register(&dvp->reset.rcdev); -+ if (ret) -+ return ret; -+ -+ parent = of_clk_get_parent_name(pdev->dev.of_node, 0); -+ if (!parent) -+ goto unregister_reset; -+ -+ data->hws[0] = clk_hw_register_gate(&pdev->dev, "hdmi0-108MHz", -+ parent, 0, -+ base + DVP_HT_RPI_MISC_CONFIG, 3, -+ CLK_GATE_SET_TO_DISABLE, &dvp->reset.lock); -+ if (IS_ERR(data->hws[0])) { -+ ret = PTR_ERR(data->hws[0]); -+ goto unregister_reset; -+ } -+ -+ data->hws[1] = clk_hw_register_gate(&pdev->dev, "hdmi1-108MHz", -+ parent, 0, -+ base + DVP_HT_RPI_MISC_CONFIG, 4, -+ CLK_GATE_SET_TO_DISABLE, &dvp->reset.lock); -+ if (IS_ERR(data->hws[1])) { -+ ret = PTR_ERR(data->hws[1]); -+ goto unregister_clk0; -+ } -+ -+ data->num = NR_CLOCKS; -+ ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get, -+ data); -+ if (ret) -+ goto unregister_clk1; -+ -+ return 0; -+ -+ -+unregister_clk1: -+ clk_hw_unregister_gate(data->hws[1]); -+ -+unregister_clk0: -+ clk_hw_unregister_gate(data->hws[0]); -+ -+unregister_reset: -+ reset_controller_unregister(&dvp->reset.rcdev); -+ return ret; -+}; -+ -+static int clk_dvp_remove(struct platform_device *pdev) -+{ -+ struct clk_dvp *dvp = platform_get_drvdata(pdev); -+ struct clk_hw_onecell_data *data = dvp->data; -+ -+ clk_hw_unregister_gate(data->hws[1]); -+ clk_hw_unregister_gate(data->hws[0]); -+ reset_controller_unregister(&dvp->reset.rcdev); -+ -+ return 0; -+} -+ -+static const struct of_device_id clk_dvp_dt_ids[] = { -+ { .compatible = "brcm,brcm2711-dvp", }, -+ { /* sentinel */ } -+}; -+ -+static struct platform_driver clk_dvp_driver = { -+ .probe = clk_dvp_probe, -+ .remove = clk_dvp_remove, -+ .driver = { -+ .name = "brcm2711-dvp", -+ .of_match_table = clk_dvp_dt_ids, -+ }, -+}; -+module_platform_driver(clk_dvp_driver); |