mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 17:45:09 +07:00
a11ca68969
Add clock driver support for g3dsys on MT2701 and MT7623, which is providing essential clock gate and reset controller to Mali-450. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
96 lines
2.0 KiB
C
96 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2018 MediaTek Inc.
|
|
* Author: Sean Wang <sean.wang@mediatek.com>
|
|
*
|
|
*/
|
|
|
|
#include <linux/clk-provider.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_address.h>
|
|
#include <linux/of_device.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
#include "clk-mtk.h"
|
|
#include "clk-gate.h"
|
|
|
|
#include <dt-bindings/clock/mt2701-clk.h>
|
|
|
|
#define GATE_G3D(_id, _name, _parent, _shift) { \
|
|
.id = _id, \
|
|
.name = _name, \
|
|
.parent_name = _parent, \
|
|
.regs = &g3d_cg_regs, \
|
|
.shift = _shift, \
|
|
.ops = &mtk_clk_gate_ops_setclr, \
|
|
}
|
|
|
|
static const struct mtk_gate_regs g3d_cg_regs = {
|
|
.sta_ofs = 0x0,
|
|
.set_ofs = 0x4,
|
|
.clr_ofs = 0x8,
|
|
};
|
|
|
|
static const struct mtk_gate g3d_clks[] = {
|
|
GATE_G3D(CLK_G3DSYS_CORE, "g3d_core", "mfg_sel", 0),
|
|
};
|
|
|
|
static int clk_mt2701_g3dsys_init(struct platform_device *pdev)
|
|
{
|
|
struct clk_onecell_data *clk_data;
|
|
struct device_node *node = pdev->dev.of_node;
|
|
int r;
|
|
|
|
clk_data = mtk_alloc_clk_data(CLK_G3DSYS_NR);
|
|
|
|
mtk_clk_register_gates(node, g3d_clks, ARRAY_SIZE(g3d_clks),
|
|
clk_data);
|
|
|
|
r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
|
|
if (r)
|
|
dev_err(&pdev->dev,
|
|
"could not register clock provider: %s: %d\n",
|
|
pdev->name, r);
|
|
|
|
mtk_register_reset_controller(node, 1, 0xc);
|
|
|
|
return r;
|
|
}
|
|
|
|
static const struct of_device_id of_match_clk_mt2701_g3d[] = {
|
|
{
|
|
.compatible = "mediatek,mt2701-g3dsys",
|
|
.data = clk_mt2701_g3dsys_init,
|
|
}, {
|
|
/* sentinel */
|
|
}
|
|
};
|
|
|
|
static int clk_mt2701_g3d_probe(struct platform_device *pdev)
|
|
{
|
|
int (*clk_init)(struct platform_device *);
|
|
int r;
|
|
|
|
clk_init = of_device_get_match_data(&pdev->dev);
|
|
if (!clk_init)
|
|
return -EINVAL;
|
|
|
|
r = clk_init(pdev);
|
|
if (r)
|
|
dev_err(&pdev->dev,
|
|
"could not register clock provider: %s: %d\n",
|
|
pdev->name, r);
|
|
|
|
return r;
|
|
}
|
|
|
|
static struct platform_driver clk_mt2701_g3d_drv = {
|
|
.probe = clk_mt2701_g3d_probe,
|
|
.driver = {
|
|
.name = "clk-mt2701-g3d",
|
|
.of_match_table = of_match_clk_mt2701_g3d,
|
|
},
|
|
};
|
|
|
|
builtin_platform_driver(clk_mt2701_g3d_drv);
|