Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 283 insertions, 0 deletions

diff --git a/drivers/clk/sunxi-ng/ccu-sun9i-a80-de.c b/drivers/clk/sunxi-ng/ccu-sun9i-a80-de.c
new file mode 100644
index 000000000..6d116581c
--- /dev/null
+++ b/drivers/clk/sunxi-ng/ccu-sun9i-a80-de.c
@@ -0,0 +1,283 @@
+/*
+ * Copyright (c) 2016 Chen-Yu Tsai. All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+
+#include "ccu_common.h"
+#include "ccu_div.h"
+#include "ccu_gate.h"
+#include "ccu_reset.h"
+
+#include "ccu-sun9i-a80-de.h"
+
+static SUNXI_CCU_GATE(fe0_clk,		"fe0",		"fe0-div",
+		      0x00, BIT(0), 0);
+static SUNXI_CCU_GATE(fe1_clk,		"fe1",		"fe1-div",
+		      0x00, BIT(1), 0);
+static SUNXI_CCU_GATE(fe2_clk,		"fe2",		"fe2-div",
+		      0x00, BIT(2), 0);
+static SUNXI_CCU_GATE(iep_deu0_clk,	"iep-deu0",	"de",
+		      0x00, BIT(4), 0);
+static SUNXI_CCU_GATE(iep_deu1_clk,	"iep-deu1",	"de",
+		      0x00, BIT(5), 0);
+static SUNXI_CCU_GATE(be0_clk,		"be0",		"be0-div",
+		      0x00, BIT(8), 0);
+static SUNXI_CCU_GATE(be1_clk,		"be1",		"be1-div",
+		      0x00, BIT(9), 0);
+static SUNXI_CCU_GATE(be2_clk,		"be2",		"be2-div",
+		      0x00, BIT(10), 0);
+static SUNXI_CCU_GATE(iep_drc0_clk,	"iep-drc0",	"de",
+		      0x00, BIT(12), 0);
+static SUNXI_CCU_GATE(iep_drc1_clk,	"iep-drc1",	"de",
+		      0x00, BIT(13), 0);
+static SUNXI_CCU_GATE(merge_clk,	"merge",	"de",
+		      0x00, BIT(20), 0);
+
+static SUNXI_CCU_GATE(dram_fe0_clk,	"dram-fe0",	"sdram",
+		      0x04, BIT(0), 0);
+static SUNXI_CCU_GATE(dram_fe1_clk,	"dram-fe1",	"sdram",
+		      0x04, BIT(1), 0);
+static SUNXI_CCU_GATE(dram_fe2_clk,	"dram-fe2",	"sdram",
+		      0x04, BIT(2), 0);
+static SUNXI_CCU_GATE(dram_deu0_clk,	"dram-deu0",	"sdram",
+		      0x04, BIT(4), 0);
+static SUNXI_CCU_GATE(dram_deu1_clk,	"dram-deu1",	"sdram",
+		      0x04, BIT(5), 0);
+static SUNXI_CCU_GATE(dram_be0_clk,	"dram-be0",	"sdram",
+		      0x04, BIT(8), 0);
+static SUNXI_CCU_GATE(dram_be1_clk,	"dram-be1",	"sdram",
+		      0x04, BIT(9), 0);
+static SUNXI_CCU_GATE(dram_be2_clk,	"dram-be2",	"sdram",
+		      0x04, BIT(10), 0);
+static SUNXI_CCU_GATE(dram_drc0_clk,	"dram-drc0",	"sdram",
+		      0x04, BIT(12), 0);
+static SUNXI_CCU_GATE(dram_drc1_clk,	"dram-drc1",	"sdram",
+		      0x04, BIT(13), 0);
+
+static SUNXI_CCU_GATE(bus_fe0_clk,	"bus-fe0",	"bus-de",
+		      0x08, BIT(0), 0);
+static SUNXI_CCU_GATE(bus_fe1_clk,	"bus-fe1",	"bus-de",
+		      0x08, BIT(1), 0);
+static SUNXI_CCU_GATE(bus_fe2_clk,	"bus-fe2",	"bus-de",
+		      0x08, BIT(2), 0);
+static SUNXI_CCU_GATE(bus_deu0_clk,	"bus-deu0",	"bus-de",
+		      0x08, BIT(4), 0);
+static SUNXI_CCU_GATE(bus_deu1_clk,	"bus-deu1",	"bus-de",
+		      0x08, BIT(5), 0);
+static SUNXI_CCU_GATE(bus_be0_clk,	"bus-be0",	"bus-de",
+		      0x08, BIT(8), 0);
+static SUNXI_CCU_GATE(bus_be1_clk,	"bus-be1",	"bus-de",
+		      0x08, BIT(9), 0);
+static SUNXI_CCU_GATE(bus_be2_clk,	"bus-be2",	"bus-de",
+		      0x08, BIT(10), 0);
+static SUNXI_CCU_GATE(bus_drc0_clk,	"bus-drc0",	"bus-de",
+		      0x08, BIT(12), 0);
+static SUNXI_CCU_GATE(bus_drc1_clk,	"bus-drc1",	"bus-de",
+		      0x08, BIT(13), 0);
+
+static SUNXI_CCU_M(fe0_div_clk, "fe0-div", "de", 0x20, 0, 4, 0);
+static SUNXI_CCU_M(fe1_div_clk, "fe1-div", "de", 0x20, 4, 4, 0);
+static SUNXI_CCU_M(fe2_div_clk, "fe2-div", "de", 0x20, 8, 4, 0);
+static SUNXI_CCU_M(be0_div_clk, "be0-div", "de", 0x20, 16, 4, 0);
+static SUNXI_CCU_M(be1_div_clk, "be1-div", "de", 0x20, 20, 4, 0);
+static SUNXI_CCU_M(be2_div_clk, "be2-div", "de", 0x20, 24, 4, 0);
+
+static struct ccu_common *sun9i_a80_de_clks[] = {
+	&fe0_clk.common,
+	&fe1_clk.common,
+	&fe2_clk.common,
+	&iep_deu0_clk.common,
+	&iep_deu1_clk.common,
+	&be0_clk.common,
+	&be1_clk.common,
+	&be2_clk.common,
+	&iep_drc0_clk.common,
+	&iep_drc1_clk.common,
+	&merge_clk.common,
+
+	&dram_fe0_clk.common,
+	&dram_fe1_clk.common,
+	&dram_fe2_clk.common,
+	&dram_deu0_clk.common,
+	&dram_deu1_clk.common,
+	&dram_be0_clk.common,
+	&dram_be1_clk.common,
+	&dram_be2_clk.common,
+	&dram_drc0_clk.common,
+	&dram_drc1_clk.common,
+
+	&bus_fe0_clk.common,
+	&bus_fe1_clk.common,
+	&bus_fe2_clk.common,
+	&bus_deu0_clk.common,
+	&bus_deu1_clk.common,
+	&bus_be0_clk.common,
+	&bus_be1_clk.common,
+	&bus_be2_clk.common,
+	&bus_drc0_clk.common,
+	&bus_drc1_clk.common,
+
+	&fe0_div_clk.common,
+	&fe1_div_clk.common,
+	&fe2_div_clk.common,
+	&be0_div_clk.common,
+	&be1_div_clk.common,
+	&be2_div_clk.common,
+};
+
+static struct clk_hw_onecell_data sun9i_a80_de_hw_clks = {
+	.hws	= {
+		[CLK_FE0]	= &fe0_clk.common.hw,
+		[CLK_FE1]	= &fe1_clk.common.hw,
+		[CLK_FE2]	= &fe2_clk.common.hw,
+		[CLK_IEP_DEU0]	= &iep_deu0_clk.common.hw,
+		[CLK_IEP_DEU1]	= &iep_deu1_clk.common.hw,
+		[CLK_BE0]	= &be0_clk.common.hw,
+		[CLK_BE1]	= &be1_clk.common.hw,
+		[CLK_BE2]	= &be2_clk.common.hw,
+		[CLK_IEP_DRC0]	= &iep_drc0_clk.common.hw,
+		[CLK_IEP_DRC1]	= &iep_drc1_clk.common.hw,
+		[CLK_MERGE]	= &merge_clk.common.hw,
+
+		[CLK_DRAM_FE0]	= &dram_fe0_clk.common.hw,
+		[CLK_DRAM_FE1]	= &dram_fe1_clk.common.hw,
+		[CLK_DRAM_FE2]	= &dram_fe2_clk.common.hw,
+		[CLK_DRAM_DEU0]	= &dram_deu0_clk.common.hw,
+		[CLK_DRAM_DEU1]	= &dram_deu1_clk.common.hw,
+		[CLK_DRAM_BE0]	= &dram_be0_clk.common.hw,
+		[CLK_DRAM_BE1]	= &dram_be1_clk.common.hw,
+		[CLK_DRAM_BE2]	= &dram_be2_clk.common.hw,
+		[CLK_DRAM_DRC0]	= &dram_drc0_clk.common.hw,
+		[CLK_DRAM_DRC1]	= &dram_drc1_clk.common.hw,
+
+		[CLK_BUS_FE0]	= &bus_fe0_clk.common.hw,
+		[CLK_BUS_FE1]	= &bus_fe1_clk.common.hw,
+		[CLK_BUS_FE2]	= &bus_fe2_clk.common.hw,
+		[CLK_BUS_DEU0]	= &bus_deu0_clk.common.hw,
+		[CLK_BUS_DEU1]	= &bus_deu1_clk.common.hw,
+		[CLK_BUS_BE0]	= &bus_be0_clk.common.hw,
+		[CLK_BUS_BE1]	= &bus_be1_clk.common.hw,
+		[CLK_BUS_BE2]	= &bus_be2_clk.common.hw,
+		[CLK_BUS_DRC0]	= &bus_drc0_clk.common.hw,
+		[CLK_BUS_DRC1]	= &bus_drc1_clk.common.hw,
+
+		[CLK_FE0_DIV]	= &fe0_div_clk.common.hw,
+		[CLK_FE1_DIV]	= &fe1_div_clk.common.hw,
+		[CLK_FE2_DIV]	= &fe2_div_clk.common.hw,
+		[CLK_BE0_DIV]	= &be0_div_clk.common.hw,
+		[CLK_BE1_DIV]	= &be1_div_clk.common.hw,
+		[CLK_BE2_DIV]	= &be2_div_clk.common.hw,
+	},
+	.num	= CLK_NUMBER,
+};
+
+static struct ccu_reset_map sun9i_a80_de_resets[] = {
+	[RST_FE0]	= { 0x0c, BIT(0) },
+	[RST_FE1]	= { 0x0c, BIT(1) },
+	[RST_FE2]	= { 0x0c, BIT(2) },
+	[RST_DEU0]	= { 0x0c, BIT(4) },
+	[RST_DEU1]	= { 0x0c, BIT(5) },
+	[RST_BE0]	= { 0x0c, BIT(8) },
+	[RST_BE1]	= { 0x0c, BIT(9) },
+	[RST_BE2]	= { 0x0c, BIT(10) },
+	[RST_DRC0]	= { 0x0c, BIT(12) },
+	[RST_DRC1]	= { 0x0c, BIT(13) },
+	[RST_MERGE]	= { 0x0c, BIT(20) },
+};
+
+static const struct sunxi_ccu_desc sun9i_a80_de_clk_desc = {
+	.ccu_clks	= sun9i_a80_de_clks,
+	.num_ccu_clks	= ARRAY_SIZE(sun9i_a80_de_clks),
+
+	.hw_clks	= &sun9i_a80_de_hw_clks,
+
+	.resets		= sun9i_a80_de_resets,
+	.num_resets	= ARRAY_SIZE(sun9i_a80_de_resets),
+};
+
+static int sun9i_a80_de_clk_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct clk *bus_clk;
+	struct reset_control *rstc;
+	void __iomem *reg;
+	int ret;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	reg = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(reg))
+		return PTR_ERR(reg);
+
+	bus_clk = devm_clk_get(&pdev->dev, "bus");
+	if (IS_ERR(bus_clk)) {
+		ret = PTR_ERR(bus_clk);
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "Couldn't get bus clk: %d\n", ret);
+		return ret;
+	}
+
+	rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL);
+	if (IS_ERR(rstc)) {
+		ret = PTR_ERR(rstc);
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev,
+				"Couldn't get reset control: %d\n", ret);
+		return ret;
+	}
+
+	/* The bus clock needs to be enabled for us to access the registers */
+	ret = clk_prepare_enable(bus_clk);
+	if (ret) {
+		dev_err(&pdev->dev, "Couldn't enable bus clk: %d\n", ret);
+		return ret;
+	}
+
+	/* The reset control needs to be asserted for the controls to work */
+	ret = reset_control_deassert(rstc);
+	if (ret) {
+		dev_err(&pdev->dev,
+			"Couldn't deassert reset control: %d\n", ret);
+		goto err_disable_clk;
+	}
+
+	ret = sunxi_ccu_probe(pdev->dev.of_node, reg,
+			      &sun9i_a80_de_clk_desc);
+	if (ret)
+		goto err_assert_reset;
+
+	return 0;
+
+err_assert_reset:
+	reset_control_assert(rstc);
+err_disable_clk:
+	clk_disable_unprepare(bus_clk);
+	return ret;
+}
+
+static const struct of_device_id sun9i_a80_de_clk_ids[] = {
+	{ .compatible = "allwinner,sun9i-a80-de-clks" },
+	{ }
+};
+
+static struct platform_driver sun9i_a80_de_clk_driver = {
+	.probe	= sun9i_a80_de_clk_probe,
+	.driver	= {
+		.name	= "sun9i-a80-de-clks",
+		.of_match_table	= sun9i_a80_de_clk_ids,
+	},
+};
+builtin_platform_driver(sun9i_a80_de_clk_driver);