mirror of https://github.com/OpenIPC/firmware.git
124 lines
3.1 KiB
Diff
124 lines
3.1 KiB
Diff
diff -drupN a/drivers/clk/sunxi/clk-sun8i-apb0.c b/drivers/clk/sunxi/clk-sun8i-apb0.c
|
|
--- a/drivers/clk/sunxi/clk-sun8i-apb0.c 2018-08-06 17:23:04.000000000 +0300
|
|
+++ b/drivers/clk/sunxi/clk-sun8i-apb0.c 1970-01-01 03:00:00.000000000 +0300
|
|
@@ -1,119 +0,0 @@
|
|
-/*
|
|
- * Copyright (C) 2014 Chen-Yu Tsai
|
|
- * Author: Chen-Yu Tsai <wens@csie.org>
|
|
- *
|
|
- * Allwinner A23 APB0 clock driver
|
|
- *
|
|
- * License Terms: GNU General Public License v2
|
|
- *
|
|
- * Based on clk-sun6i-apb0.c
|
|
- * Allwinner A31 APB0 clock driver
|
|
- *
|
|
- * Copyright (C) 2014 Free Electrons
|
|
- * Author: Boris BREZILLON <boris.brezillon@free-electrons.com>
|
|
- *
|
|
- */
|
|
-
|
|
-#include <linux/clk-provider.h>
|
|
-#include <linux/init.h>
|
|
-#include <linux/of.h>
|
|
-#include <linux/of_address.h>
|
|
-#include <linux/platform_device.h>
|
|
-
|
|
-static struct clk *sun8i_a23_apb0_register(struct device_node *node,
|
|
- void __iomem *reg)
|
|
-{
|
|
- const char *clk_name = node->name;
|
|
- const char *clk_parent;
|
|
- struct clk *clk;
|
|
- int ret;
|
|
-
|
|
- clk_parent = of_clk_get_parent_name(node, 0);
|
|
- if (!clk_parent)
|
|
- return ERR_PTR(-EINVAL);
|
|
-
|
|
- of_property_read_string(node, "clock-output-names", &clk_name);
|
|
-
|
|
- /* The A23 APB0 clock is a standard 2 bit wide divider clock */
|
|
- clk = clk_register_divider(NULL, clk_name, clk_parent, 0, reg,
|
|
- 0, 2, 0, NULL);
|
|
- if (IS_ERR(clk))
|
|
- return clk;
|
|
-
|
|
- ret = of_clk_add_provider(node, of_clk_src_simple_get, clk);
|
|
- if (ret)
|
|
- goto err_unregister;
|
|
-
|
|
- return clk;
|
|
-
|
|
-err_unregister:
|
|
- clk_unregister_divider(clk);
|
|
-
|
|
- return ERR_PTR(ret);
|
|
-}
|
|
-
|
|
-static void sun8i_a23_apb0_setup(struct device_node *node)
|
|
-{
|
|
- void __iomem *reg;
|
|
- struct resource res;
|
|
- struct clk *clk;
|
|
-
|
|
- reg = of_io_request_and_map(node, 0, of_node_full_name(node));
|
|
- if (IS_ERR(reg)) {
|
|
- /*
|
|
- * This happens with clk nodes instantiated through mfd,
|
|
- * as those do not have their resources assigned in the
|
|
- * device tree. Do not print an error in this case.
|
|
- */
|
|
- if (PTR_ERR(reg) != -EINVAL)
|
|
- pr_err("Could not get registers for a23-apb0-clk\n");
|
|
-
|
|
- return;
|
|
- }
|
|
-
|
|
- clk = sun8i_a23_apb0_register(node, reg);
|
|
- if (IS_ERR(clk))
|
|
- goto err_unmap;
|
|
-
|
|
- return;
|
|
-
|
|
-err_unmap:
|
|
- iounmap(reg);
|
|
- of_address_to_resource(node, 0, &res);
|
|
- release_mem_region(res.start, resource_size(&res));
|
|
-}
|
|
-CLK_OF_DECLARE_DRIVER(sun8i_a23_apb0, "allwinner,sun8i-a23-apb0-clk",
|
|
- sun8i_a23_apb0_setup);
|
|
-
|
|
-static int sun8i_a23_apb0_clk_probe(struct platform_device *pdev)
|
|
-{
|
|
- struct device_node *np = pdev->dev.of_node;
|
|
- struct resource *r;
|
|
- void __iomem *reg;
|
|
- struct clk *clk;
|
|
-
|
|
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
- reg = devm_ioremap_resource(&pdev->dev, r);
|
|
- if (IS_ERR(reg))
|
|
- return PTR_ERR(reg);
|
|
-
|
|
- clk = sun8i_a23_apb0_register(np, reg);
|
|
- if (IS_ERR(clk))
|
|
- return PTR_ERR(clk);
|
|
-
|
|
- return 0;
|
|
-}
|
|
-
|
|
-static const struct of_device_id sun8i_a23_apb0_clk_dt_ids[] = {
|
|
- { .compatible = "allwinner,sun8i-a23-apb0-clk" },
|
|
- { /* sentinel */ }
|
|
-};
|
|
-
|
|
-static struct platform_driver sun8i_a23_apb0_clk_driver = {
|
|
- .driver = {
|
|
- .name = "sun8i-a23-apb0-clk",
|
|
- .of_match_table = sun8i_a23_apb0_clk_dt_ids,
|
|
- },
|
|
- .probe = sun8i_a23_apb0_clk_probe,
|
|
-};
|
|
-builtin_platform_driver(sun8i_a23_apb0_clk_driver);
|